Developer Jobs in London

Job Title: MLOps Platform Developer Location: London Salary: Depending on experience Job Type: Full time, Permanent This is a rare opportunity to be first in the door to continue the development of our engineering platform. You will own a production system end to end - the web application, the database estate, the data pipelines, the deployments, the integrations and the LLM serving stack click apply for full job details

Quant Developer - Exotic Derivatives - Location: London (3 days/week hybrid) - Duration: 6-12 months (12-month scope) The Role Join a front-office team at a global financial institution building a brand-new capital markets valuation engine from scratch click apply for full job details

Senior ETRM Developer Join us, be part of more. We're more than an energy company. We're a family of brands revolutionising how we power the planet. We're energisers. One team of 21,000 colleagues that's energising a greener, fairer future by creating an energy system that doesn't rely on fossil fuels whilst living our powerful commitment to igniting positive change in our communities click apply for full job details

Credit Risk Developer (Contract) Duration: 12 Months (Possibility for extension) Location: London/Hybrid (3 days per week on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile Work closely with the Risk (RMD) Development team and liaise with RMD business to make sure the Technology stack is fully optimised to meet their current requirements, growth demand and regulatory obligations. Promote and deliver high quality, fast, adaptable and flexible software solutions to meet and anticipate the demand while reducing the total cost of ownership. Collaborate with fellow team members ensuring everyone has an opportunity to perform at the top of their skills and abilities and make certain the environment is positive, productive and motivating. Key Accountabilities: - Responsible for effective and efficient running of the Credit and Market Risk systems, integrated into the wider SMBC environment to meet the needs of SMBC trading desks. - Delivering fast-paced agile high quality software changes and solutions, help running Scrums, Sprints and creating and deploying Releases. - Providing guidance and advice on .Net, .Net Core, C#, and other development tools and languages, their usage and upgrades, and leveraging them to maximise the business benefit. - Frequent .Net/C# tasks such as delivering new projects, improving and optimising the current setup, providing future-proofing guidance on all relevant data points. - Promoting enterprise data management and governance design approach delivered through Agile SDLC. - Delivering regulatory and internal reporting in a resilient and timely manner incorporating the latest and most suitable industry and technology solutions. - Daily collaboration with traders and Desk heads to make sure their strategic objectives are being met through technology changes. - Advanced business knowledge and experience in Risk management and proven ability to work closely with the risk teams to help deliver their strategic objectives. Skills & Experience: - Core Development Languages covering .Net Core, C#. - Transact SQL (preferably SQL Server). - Experience in financial industry. - Strong numerical and financial skills with the ability to interpret financial information and able to design and use of financial models. - Excellent analytical and problem-solving skills. - Demonstrated experience managing, end to end, design, definition and delivery of technical solutions in-line with strategic goals. - Ability to handle communications at all levels from across the whole business, including Front Office. - Hands-on experience with automated testing environments and CI/CD. Candidates will need to show evidence of the above in their CV in order to be considered. If you feel you have the skills and experience and want to hear more about this role 'apply now' to declare your interest in this opportunity with our client. Your application will be observed by our dedicated team. We will respond to all successful applicants ASAP however, please be advised that we will always look to contact you further from this time should we need further applicants or if other opportunities arise relevant to your skillset. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. As part of our standard hiring process to manage risk, please note background screening checks will be conducted on all hires before commencing employment. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

890 per day Umbrella Inside IR35 London / Hybrid (3 days on-site) Initial 6-Month Contract My client is a leading global financial services organisation seeking an experienced Senior Java Developer to join a large-scale enterprise technology programme. This is a senior technical role focused on leading backend application development initiatives and driving architectural decisions for robust, scalable and high-performance server-side systems. You will provide hands-on leadership in building enterprise-grade Java solutions, guiding development teams and influencing technical strategy and engineering best practices. Key Requirements - 7+ years of Java backend development experience. - Advanced expertise in Java, Spring Boot and microservices architecture. - Strong experience designing and developing REST APIs and distributed systems. - Experience with Oracle, SQL/NoSQL databases and data modelling. - Experience with Kafka, RabbitMQ or other event-driven messaging technologies. - Strong knowledge of CI/CD pipelines, Git and DevOps practices. - Experience with JUnit, automated testing and code review processes. - Experience with Spring Batch and Spring Integration. - Experience with AWS, Azure or GCP cloud platforms. - Experience with Unix/Linux and shell scripting. - Proven ability to lead technical initiatives, mentor developers and contribute to architectural decisions. - Strong understanding of backend security, performance tuning and monitoring. - Excellent stakeholder management and communication skills. The successful candidate will be comfortable leading the design and delivery of enterprise-scale backend systems, resolving complex technical challenges, and driving engineering excellence across modern Java microservices environments. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

C# Developer - Front Office Trading Are you a C# developer who enjoys being close to the action rather than several layers removed from the people using your software? What about working directly alongside a trading desk, where you can see the impact of what you build - sometimes immediately? You'll be joining a front-office technology environment supporting traders, combining software development with the kind of rapid problem-solving that comes from sitting alongside your users. This isn't a role where every requirement arrives neatly packaged in a ticket. A trader may come to you because an application isn't behaving as expected, they need a tool adapting for a particular trade, or something needs investigating quickly. You'll need to understand what they're trying to achieve and work out the technical answer. Alongside this, you'll spend time developing and improving the tools used by the desk, predominantly using C#/.NET, with Python, VBA and Excel also forming part of the wider environment. If you enjoy understanding the why behind what you're developing, you'll get plenty of that here. You'll be working with the people making the trades rather than simply receiving requirements further down the line. You'll need previous experience within a trading or front-office environment and enough financial markets knowledge to comfortably understand conversations around Swaps, Bonds and/or Equities. You'll also need to be comfortable with pressure. When a trader has an issue affecting what they're trying to do, they'll want an answer quickly. This will suit someone who enjoys that immediacy rather than wanting to work quietly through a development backlog. Technically, C#/.NET is the key requirement. Experience with Python, VBA or Excel would add to your suitability, but your ability to understand trading environments, solve problems and communicate directly with traders is equally important. This role is a hybrid position based in central London. We're looking to move quickly, so if you've worked in front-office development and this sounds like your kind of environment, send over your CV and I'll be in touch. Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law. Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers. By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website.

The Data Migration Developer will focus on the technical aspects of data migration into Dynamics 365 for Finance. This role involves working closely with data leads, functional consultants, and architects to design and execute efficient ETL processes, ensuring a smooth transition from legacy systems with an emphasis on accuracy and scalability. Responsibilities - Design and build ETL processes and migration solutions. - Extract, transform, and cleanse data from legacy systems. - Load data into D365 for Finance & Operations using integration tools. - Validate data and support SIT/UAT and reconciliation activities. - Collaborate with data leads, functional consultants, and architects. - Support cutover, deployment, and post go-live hypercare. - Document processes, scripts, and migration runbooks. Requirements - Proven experience in ETL and data migration engineering. - Exposure to Dynamics 365 for Finance & Operations. - Strong knowledge of SQL and data modelling. - Experience with integration tools such as Azure Data Factory (ADF) and SSIS. - Ability to solve problems effectively in fast-paced environments. Modis International Ltd acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers in the UK. Modis Europe Ltd provide a variety of international solutions that connect clients to the best talent in the world. For all positions based in Switzerland, Modis Europe Ltd works with its licensed Swiss partner Accurity GmbH to ensure that candidate applications are handled in accordance with Swiss law. Both Modis International Ltd and Modis Europe Ltd are Equal Opportunities Employers. By applying for this role your details will be submitted to Modis International Ltd and/ or Modis Europe Ltd. Our Candidate Privacy Information Statement which explains how we will use your information is available on the Modis website.

Back End Developer 500- 540 per day Outside IR35 Java Spring Boot Secure Microservices Location London (MOD site) Working Pattern 4 days per week onsite Clearance Current DV Security Clearance required Background MOD / Defence experience required The Opportunity We're looking for an experienced Back End Developer to help build the core services behind a next-generation Defence Intelligence platform. You'll develop secure, scalable microservices and APIs that support mission-critical operational workflows, working within a highly secure environment alongside multidisciplinary engineering teams. This is an excellent opportunity to contribute to the delivery of innovative digital capabilities supporting Defence operations. About the Programme This programme is delivering an AI-enabled Defence Intelligence capability designed to improve visibility of operational data, streamline complex workflows and support faster, more informed decision-making. Working as part of an agile delivery team, you'll help develop secure, cloud-native services that integrate with existing Defence platforms while following modern engineering and DevSecOps practices. Key Responsibilities - Design, develop and maintain Java-based microservices. - Build secure RESTful APIs supporting workflow, metadata, document management and integration services. - Develop workflow integrations using orchestration technologies where required. - Integrate with enterprise data sources, identity services and existing Defence systems. - Design and develop scalable persistence layers using SQL and NoSQL databases. - Contribute to cloud-native deployments, containerisation and CI/CD pipelines. - Implement secure coding practices, logging, monitoring and audit capabilities. - Participate in technical design sessions, code reviews and agile ceremonies. Essential Skills & Experience - Proven software development experience within MOD, Defence, National Security or similarly secure environments. - Strong commercial Java development experience. - Expertise with Spring Boot. - Experience designing and developing RESTful APIs. - Strong SQL and NoSQL database experience. - Experience with Docker, Kubernetes or other container technologies. - Familiarity with CI/CD pipelines and DevSecOps practices. - Experience developing secure, scalable and maintainable backend services. Desirable Experience - Experience with Camunda 8, Zeebe, BPMN or other workflow orchestration platforms. - OpenSearch or Elasticsearch. - MongoDB, Microsoft SQL Server, Amazon RDS or hybrid data architectures. - AWS, MODCloud, Tanzu, EKS or other cloud-native platforms. - Event-driven architectures and asynchronous messaging. - Istio, mTLS or service mesh technologies. - Knowledge of semantic search, knowledge graphs or ontology-based solutions. Mandatory Requirements - Current DV Security Clearance. - Ability to work onsite at an MOD location in London four days per week. - Previous experience delivering within MOD, Defence, Defence Intelligence, Strategic Command or wider National Security organisations. - Comfortable working with OFFICIAL-SENSITIVE and classified material where authorised. Ways of Working - Agile delivery within a multidisciplinary engineering team. - Close collaboration with Defence stakeholders, Product, Delivery and Engineering teams. - Secure-by-design approach with a strong focus on audit, traceability, resilience and assurance. - Building high-quality, maintainable services that support critical operational capabilities. What We're Looking For We're interested in Back End Developers who can demonstrate: - Successful delivery of secure software solutions within MOD or Defence environments. - Strong experience designing robust, scalable backend services and APIs. - Excellent collaboration and communication skills across technical and non-technical teams. - A practical understanding of agile delivery and modern software engineering practices. - Awareness of secure system delivery, accreditation considerations and operational governance. Rate: 500- 540 per day (Outside IR35) Location: London (4 days onsite) Clearance: Current DV Security Clearance required

Full Stack Developer 500- 540 per day Outside IR35 Java Spring Boot React TypeScript Secure Digital Platforms Location London (MOD site) Working Pattern 4 days per week onsite Clearance Current DV Security Clearance required Background MOD / Defence / National Security experience required The Opportunity We're looking for an experienced Full Stack Developer to help build and deliver secure, modern digital capabilities within a Defence environment. You'll work across both frontend and backend development, contributing to scalable services, APIs and intuitive user interfaces. Working closely with UX Designers, Product, Engineering and Defence stakeholders, you'll help turn complex operational requirements into reliable, user-focused technology. This is an excellent opportunity for a Full Stack Developer who enjoys working across the technology stack and wants to contribute to high-profile, mission-critical digital programmes within a highly secure environment. About the Programme The programme is delivering a next-generation Defence Intelligence capability designed to improve visibility of operational information, streamline workflows, reduce administrative burden and support faster, more informed decision-making. The development environment combines modern frontend technologies, secure backend services, cloud-native engineering and integration with existing Defence systems. As a Full Stack Developer, you'll have the opportunity to contribute across the complete application lifecycle, from technical design and development through to testing, deployment and continuous improvement. Key Responsibilities - Design, develop and maintain secure full stack applications using Java, Spring Boot, React and TypeScript. - Develop scalable backend services and secure RESTful APIs. - Build intuitive, accessible and responsive frontend applications. - Develop reusable frontend components aligned with established design system principles. - Integrate frontend applications with backend APIs, workflow services and identity/access mechanisms. - Design and implement data persistence using SQL and NoSQL technologies. - Develop integrations with enterprise data sources and existing Defence systems. - Contribute to cloud-native deployment, containerisation and CI/CD pipelines. - Implement secure coding practices, logging, monitoring and audit capabilities. - Write automated tests across frontend and backend components. - Participate in technical design workshops, code reviews and agile ceremonies. - Work closely with UX Designers, Product, Engineering and Defence stakeholders. - Support continuous improvement of application performance, usability, reliability and security. Essential Skills & Experience - Proven full stack development experience within MOD, Defence, National Security or similarly secure environments. - Strong Java development experience. - Strong Spring Boot experience. - Strong React and TypeScript development experience. - Experience designing and developing RESTful APIs. - Experience with SQL and/or NoSQL databases. - Experience building responsive, accessible and maintainable user interfaces. - Experience with Git and modern software development practices. - Experience with Docker, Kubernetes or other container technologies. - Familiarity with CI/CD pipelines and DevSecOps practices. - Experience working within agile, multidisciplinary delivery teams. - Strong understanding of secure software development and scalable application architecture. Desirable Experience - Experience with workflow orchestration technologies such as Camunda, Zeebe or BPMN. - Experience with OpenSearch or Elasticsearch. - Experience with MongoDB, Microsoft SQL Server, Amazon RDS or similar database technologies. - Experience working with AWS, MODCloud, Tanzu, EKS or other cloud-native environments. - Experience with event-driven architectures and asynchronous messaging. - Experience with secure authentication, identity management and role-based access control. - Experience with Istio, mTLS or service mesh technologies. - Experience developing applications for classified or highly regulated environments. - Experience integrating search, semantic or knowledge-based capabilities. - Figma experience or close collaboration with UX and design teams. Mandatory Requirements - Current DV Security Clearance. - Ability to work onsite at an MOD location in London four days per week. - Previous experience delivering within MOD, Defence, Defence Intelligence, Strategic Command or wider National Security organisations. - Comfortable working with OFFICIAL-SENSITIVE and classified material where authorised. Ways of Working - Agile delivery within a multidisciplinary engineering team. - Close collaboration with Defence stakeholders, Product, Delivery, UX and Engineering colleagues. - Secure-by-design approach with a strong focus on audit, traceability, access control and assurance. - Collaborative approach to technical design, development, testing and continuous improvement. - Practical focus on delivering reliable, maintainable and user-focused technology. What We're Looking For We're interested in Full Stack Developers who can demonstrate: - Successful delivery of secure software solutions within MOD or Defence environments. - Strong hands-on experience across both frontend and backend development. - The ability to design and develop robust APIs, services and user interfaces. - Strong understanding of modern software engineering and cloud-native development. - Excellent communication skills across technical and non-technical stakeholders. - A practical understanding of agile delivery and multidisciplinary team working. - Awareness of secure system delivery, accreditation considerations and operational governance. Rate: 500- 540 per day (Outside IR35) Location: London (4 days onsite) Clearance: Current DV Security Clearance required

Front End Developer 500- 540 per day Outside IR35 React TypeScript Secure, Analyst-Facing Applications Location London (MOD site) Working Pattern 4 days per week onsite Clearance Current DV Security Clearance required Background MOD / Defence / National Security experience required The Opportunity We're looking for an experienced Front End Developer to build intuitive, secure and role-aware interfaces for a next-generation Defence Intelligence platform. You'll work closely with UX Designers, Back End Developers and wider delivery teams to turn complex operational requirements into accessible, maintainable and high-performing applications that improve visibility, streamline workflows and support users in a mission-critical environment. This is an excellent opportunity to work on modern digital capabilities within a highly secure Defence environment. About the Programme This programme is delivering an AI-enabled Defence Intelligence capability designed to improve visibility of operational information, reduce administrative burden and support faster, more informed decision-making. As part of an agile, multidisciplinary team, you'll help deliver modern frontend applications that integrate with secure backend services and existing Defence platforms. Key Responsibilities - Develop and maintain frontend applications using React and TypeScript. - Build reusable UI components aligned with a coherent design system and component library. - Work closely with UX Designers to translate user journeys, wireframes and prototypes into production-ready interfaces. - Integrate frontend applications with REST APIs, workflow services and identity/access mechanisms. - Develop role-aware dashboards, task views, status tracking and operational work queues. - Apply accessibility, responsive design and usability best practices. - Participate in agile ceremonies, sprint delivery, demonstrations and user feedback sessions. - Contribute to frontend testing, quality assurance and continuous improvement. Essential Skills & Experience - Demonstrable experience delivering software within MOD, Defence, National Security or similarly secure environments. - Strong commercial React development experience. - Strong TypeScript capability. - Experience consuming REST APIs and collaborating closely with backend engineering teams. - Experience building responsive, accessible and maintainable user interfaces. - Good understanding of component-based development and design system principles. - Experience using Git within agile delivery environments. Desirable Experience - Experience working with Figma and modern UX/design workflows. - Experience with Material UI, (url removed) Design System, MOD design patterns or equivalent component frameworks. - Experience developing workflow-driven applications. - Experience implementing secure authentication and role-based access control. - Experience developing search-led user interfaces. - Experience supporting applications deployed in classified or highly regulated environments. Mandatory Requirements - Current DV Security Clearance. - Ability to work onsite at an MOD location in London four days per week. - Previous experience delivering within MOD, Defence, Defence Intelligence, Strategic Command or wider National Security organisations. - Comfortable working with OFFICIAL-SENSITIVE and classified material where authorised. Ways of Working - Agile delivery within a multidisciplinary team. - Close collaboration with Defence stakeholders, Product, Delivery, UX and Engineering teams. - Secure-by-design approach with a strong focus on audit, traceability, access control and assurance. - Practical focus on creating intuitive, reliable applications while maintaining operational accountability. What We're Looking For We're interested in Front End Developers who can demonstrate: - Successful delivery within secure MOD or Defence environments. - Strong React and TypeScript development experience. - The ability to turn complex UX requirements into accessible, maintainable and intuitive interfaces. - Excellent communication skills across technical and non-technical stakeholders. - A practical understanding of agile delivery and modern frontend engineering. - Awareness of secure system delivery, accreditation considerations and operational governance. Rate: 500- 540 per day (Outside IR35) Location: London (4 days onsite) Clearance: Current DV Security Clearance required

Power BI Developer 6-month contract Fully Remote Outside of IR35 My client is looking for an experienced Power BI Developer to work independently on the development of financial reporting and dashboards, with support from the wider business and data teams. The business has recently implemented a finance consolidation application within its AWS Data Factory environment and now requires a Power BI specialist to build reporting solutions from the underlying data. Key Skills & Experience from the Power BI Developer: - Strong commercial experience as a Power BI Developer . - MUST HAVE Proven experience developing financial reporting solutions in Power BI. - Strong understanding of P&L, financial consolidation and management reporting . - Strong DAX, Power Query and data modelling skills. - Experience working with databases and extracting data for reporting purposes. - Experience working with AWS data environments/Data Factory would be highly beneficial. - Ability to work independently and take ownership of Power BI development. - Strong stakeholder management skills, particularly when working with Finance teams. - Power Apps experience would be advantageous, particularly experience working with Power Apps-based finance applications. Key Responsibilities of the Power BI Developer: - Develop and maintain Power BI reports and dashboards focused on financial reporting. - Build reports using data and databases hosted within the AWS Data Factory environment. - Develop reporting around financial consolidation, P&L and management reporting . - Translate finance requirements into clear, accurate and user-friendly Power BI solutions. - Work closely with Finance and business stakeholders to understand reporting requirements. - Identify and extract the relevant data from the finance consolidation application and underlying databases. - Develop appropriate data models, Power Query transformations and DAX measures . - Ensure financial reports are accurate, consistent and provide meaningful insight. - Work independently, taking ownership of reporting requirements from initial discussions through to delivery. The Power BI Developer can work fully remote, Outside of IR35. Apply now to speak with VIQU IT in confidence or contact Connor Smal via the VIQU IT website. Know someone suitable? We offer referral rewards of up to £1,000 for successful recommendations (terms apply). For more IT contract opportunities, follow VIQU IT Recruitment on LinkedIn

Senior Mobile iOS App Developer A leading retailer are looking for a Senior Mobile App Developer to join their Mobile Team to contribute to the development and evolution of their Mobile App. As the Senior Mobile App Developer, you will be responsible for building and maintaining the iOS and Android versions of the app, ensuring it delivers a pixel-perfect, performant, and luxury-aligned experience click apply for full job details

CLOUD NATIVE SOFTWARE DEVELOPER - eDV CLEARED NEW PERMANENT OPPORTUNITY AVAILABLE FOR AN eDV CLEARED CLOUD NATIVE SOFTWARE DEVELOPER IN LONDON - Permanent opportunity for an eDV Cloud Native Software Developer - Leading technology consultancy delivering projects across the UK National Security sector - Salary up to £95,000 - London-based with hybrid working - Clearance retention bonus available - Opportunity to work click apply for full job details

About Scale Factory We are an AI enablement consultancy. Delivering quality-led AI-first foundations, embedding capability and excellence into the foundational fabric of the companies we work with. We give leaders the confidence to move faster, take smarter risks and pursue transformation. Formerly Ten10, we have deep roots in Quality which means we dont just build for the future, we ensure it actua click apply for full job details

Salesforce Developer / £500 per day / London (hybrid) / 3 Months One of my leading Financial Services clients is on the lookout for an experienced Salesforce Developer to come on board to support in the design and delivery of some complex Salesforce solutions. You will get the chance to engineer a variety of customised Salesforce products including Sales Cloud and Service Cloud as well as work on in click apply for full job details

About Scale Factory We are an AI enablement consultancy. Delivering quality-led AI-first foundations, embedding capability and excellence into the foundational fabric of the companies we work with. We give leaders the confidence to move faster, take smarter risks and pursue transformation. Formerly Ten10, we have deep roots in Quality which means we dont just build for the future, we ensure it actua click apply for full job details

Smart Contract Developer - Core Banking 6-Month contract - Inside IR35 - up to 625 per day London based - hybrid working - 3 days a week onsite Role Overview We are looking for an experienced Smart Contract Developer to join a major Core Banking transformation programme, supporting the implementation and evolution of a next-generation core banking platform based on Thought Machine Vault Core. The successful candidate will work primarily within the Product Vault capability, designing, developing and maintaining Lending and Savings products implemented as Vault Smart Contracts. The role requires strong software engineering skills, experience working with complex financial products, and the ability to translate detailed business requirements into robust, testable and maintainable product logic. The developer will work closely with Product Managers, Business Analysts, Solution Architects, QA Engineers and other engineering teams to deliver core banking capabilities across Lending and Savings. Key Responsibilities - Design, develop and maintain Thought Machine Vault Smart Contracts for Lending and Savings products and associated product features. - Translate business and product requirements into scalable and maintainable Smart Contract implementations. - Develop product logic covering areas such as: - Interest calculation and accrual. - Repayment and payment schedules. - Fees and charges. - Payment allocation. - Account balances and balance dimensions. - Product lifecycle events. - Account amendments and servicing activities. - Support the implementation and migration of Lending and Savings products onto the new core banking platform. - Work closely with Business Analysts and Product Owners to clarify requirements, identify edge cases and define expected product behaviour. - Collaborate with architecture and engineering teams to ensure Smart Contracts integrate correctly with surrounding services and platforms. - Develop comprehensive automated tests covering product rules, scenarios, boundary conditions and regression behaviour. - Participate in code reviews and contribute to development standards and engineering best practices. - Investigate and resolve defects identified during functional, integration, migration and production testing. - Support reconciliation and validation of financial calculations between legacy systems and Vault. - Analyse existing product behaviour and legacy-system rules when supporting product migration. - Contribute to technical design discussions and identify potential implementation risks or constraints. - Support releases through development, testing, pre-production and production environments. - Produce appropriate technical documentation describing Smart Contract behaviour and key implementation decisions. - Work within established engineering governance, security and regulatory requirements. Essential Skills and Experience - Strong software development experience, ideally using Python. - Hands-on experience developing Thought Machine Vault Smart Contracts. - Good understanding of Vault Core, including concepts such as: - Smart Contracts. - Contracts API / Vault APIs. - Posting instructions. - Balances and dimensions. - Scheduled events. - Hooks. - Interest accrual and application. - Account lifecycle management. - Strong experience developing and testing complex business logic. - Good understanding of banking product concepts and financial calculations. - Experience with automated testing and test-driven development. - Strong analytical and problem-solving skills. - Experience working with Git-based development workflows, CI/CD pipelines and modern software engineering practices. - Ability to work effectively within multidisciplinary Agile delivery teams. - Strong communication skills and the ability to discuss complex technical behaviour with both technical and non-technical stakeholders. Highly Desirable - Experience implementing Lending and/or Savings products. - Experience migrating financial products from legacy core banking platforms onto Thought Machine Vault. - Understanding of Lending and Savings concepts, including: - Interest accrual and application. - Repayment schedules. - Fixed and variable interest rates. - Fees and charges. - Overpayments and underpayments. - Deposits and withdrawals. - Account maturity. - Product and account closure. - Experience working with financial event streams and downstream accounting or reporting systems. - Knowledge of reconciliation between legacy and target banking platforms. - Experience working within UK financial services or another highly regulated banking environment. - Familiarity with microservices, event-driven architectures and cloud-native platforms. - Experience working with Jira, Confluence and Agile/Scrum delivery practices. Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

We are looking to recruit an experienced senior Full Stack software engineer to work in a product development role using .Net C# on the Backend and Node JS for the Frontend. You will be working on the development of a Cloud based Security application for Microsoft architecture that integrates AI functionality to provide a level of capability that is truly innovative. If you currently hold or have previously held MOD security clearance that would be an advantage. You must be prepared to undergo MOD security vetting if successful in your application. This is an opportunity to join an organisation that has a reputation for innovation in securing Microsoft Cloud architecture. We are looking for someone who has a wealth of capability as a .Net C# software engineer and has experience in developing IT Security applications. You will be a person who is curious about the innovative use of integrating AI into Secure Microsoft IT Cloud based Security in a way that enhances the ability to create a Secure Microsoft IT architecture. The aim is to hire someone who will grow with the organisation and be a key member of the organisation going forwards. Eligo Recruitment is acting as an Employment Business in relation to this vacancy. Eligo is proud to be an equal opportunity employer dedicated to fostering diversity and creating an inclusive and equitable environment for employees and applicants. We actively celebrate and embrace differences, including but not limited to race, colour, religion, sex, sexual orientation, gender identity, national origin, veteran status, and disability. We encourage applications from individuals of all backgrounds and experiences and all will be considered for employment without discrimination. At Eligo Recruitment diversity, equity and inclusion is integral to achieving our mission to ensure every workplace reflects the richness of human diversity.

OneStream Technology Lead / Developer London - 1-3 days a week - Inside IR35 - Rate Negotiable Contract - Initially 6 months with a strong chance of extension We are seeking an experienced OneStream Technology Lead / Developer to take ownership of the design, development, and ongoing support of OneStream solutions across planning, consolidation, reporting, and analytics. This is a hands-on technical leadership role, working closely with Finance and IT to deliver scalable, well-governed financial solutions. What you'll do - Lead the design, build, and support of OneStream applications across budgeting, forecasting, consolidation, and reporting - Translate business requirements into robust technical designs and solution architecture - Develop business rules, XF scripts, and complex custom calculations - Design and optimize OneStream cubes, dimensions, workflows, and security models - Build and enhance reports, dashboards, and analytic views - Support and maintain data integrations, APIs, and connectors - Ensure data integrity, performance optimisation, and adherence to best-practice governance - Act as a technical lead, providing code reviews, documentation, and mentoring to other developers - Support production environments, month-end cycles, and ad-hoc analysis What you'll bring - Strong hands-on experience developing in OneStream XF - Proven expertise in business rules, scripting, cube configuration, and reporting - Solid SQL skills and experience working with financial data models - Experience supporting data integrations and ETL processes - Background acting as a technical lead or senior OneStream developer - Strong communication skills with the ability to bridge finance and technology teams Please only apply for the role if you have demonstrable, technical ability with OneStream and are happy to commit to 1-3 days a week onsite in the London office. If you would like to be considered then please apply today!

Credit Risk Developer (Contract) Duration: 12 Months (Possibility for extension) Location: London/Hybrid (3 days per week on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile Work closely with the Risk (RMD) Development team and liaise with RMD business to make sure the Technology stack is fully optimised to meet their current requirements, growth demand and regulatory obligations. Promote and deliver high quality, fast, adaptable and flexible software solutions to meet and anticipate the demand while reducing the total cost of ownership. Collaborate with fellow team members ensuring everyone has an opportunity to perform at the top of their skills and abilities and make certain the environment is positive, productive and motivating. Key Accountabilities: - Responsible for effective and efficient running of the Credit and Market Risk systems, integrated into the wider SMBC environment to meet the needs of SMBC trading desks. - Delivering fast-paced agile high quality software changes and solutions, help running Scrums, Sprints and creating and deploying Releases. - Providing guidance and advice on .Net, .Net Core, C#, and other development tools and languages, their usage and upgrades, and leveraging them to maximise the business benefit. - Frequent .Net/C# tasks such as delivering new projects, improving and optimising the current setup, providing future-proofing guidance on all relevant data points. - Promoting enterprise data management and governance design approach delivered through Agile SDLC. - Delivering regulatory and internal reporting in a resilient and timely manner incorporating the latest and most suitable industry and technology solutions. - Daily collaboration with traders and Desk heads to make sure their strategic objectives are being met through technology changes. - Advanced business knowledge and experience in Risk management and proven ability to work closely with the risk teams to help deliver their strategic objectives. Skills & Experience: - Core Development Languages covering .Net Core, C#. - Transact SQL (preferably SQL Server). - Experience in financial industry. - Strong numerical and financial skills with the ability to interpret financial information and able to design and use of financial models. - Excellent analytical and problem-solving skills. - Demonstrated experience managing, end to end, design, definition and delivery of technical solutions in-line with strategic goals. - Ability to handle communications at all levels from across the whole business, including Front Office. - Hands-on experience with automated testing environments and CI/CD. Candidates will need to show evidence of the above in their CV in order to be considered. If you feel you have the skills and experience and want to hear more about this role 'apply now' to declare your interest in this opportunity with our client. Your application will be observed by our dedicated team. We will respond to all successful applicants ASAP however, please be advised that we will always look to contact you further from this time should we need further applicants or if other opportunities arise relevant to your skillset. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. As part of our standard hiring process to manage risk, please note background screening checks will be conducted on all hires before commencing employment. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

Senior Intapp Developer A fantastic opportunity has arisen for a Senior Intapp Developer to join a London based global law firm on a permanent basis. Senior Intapp Developer Summary: Under the direct supervision of the Senior Manager, Enterprise Applications, the Senior Intapp Developer acts as the IT owner of several applications and platforms owned by the firm's New Business Intake and Conflicts click apply for full job details

Senior Mobile App Developer A leading retailer are looking for a Senior Mobile App Developer to join their Mobile Team to contribute to the development and evolution of their Mobile App. As the Senior Mobile App Developer, you will be responsible for building and maintaining the iOS and Android versions of the app, ensuring it delivers a pixel-perfect, performant, and luxury-aligned experience for click apply for full job details

React Native Engineer / React Native Developer / Senior React Native Developer / Senior Mobile Developer - React Native We've partnered with well known FinTech who are on a complex transformation programme across their mobile apps, web platform and entire technology stack. They want to improve the functionality of a couple of their core products on their mobile app click apply for full job details

D365 Lead CE/CRM Developer - Hybrid/UK - £80,000 An established End User within the UK are undergoing a large-scale Microsoft Dynamics transformation are looking for a Lead D365 CE/CRM Developer (SME) to join their growing internal team. They are looking for someone with a strong technical background within Dynamics 365 and Power Platform who enjoys developing scalable solutions whilst working cl click apply for full job details

Senior C++ Developer Permanent Fully Remote Negotiable Salary + Significant Equity From Oxford research to securing the connected world Nine years ago, a small UK technology team working alongside researchers at the University of Oxford set out to solve a problem most of the world didn t yet realise it had. Billions of machines were beginning to talk to each other across factories, power grids, transport systems, defence networks and smart cities. But much of that communication depended on architectures built for a different era: centralised, vulnerable and increasingly exposed. So they built something different. Today, the company holds patented cryptographic technology that enables fully decentralised, post-quantum secure interoperability between devices operating at the edge without relying on always-on central connectivity. It can operate across untrusted environments, enable real-time communication and support narrow AI across full-scale industrial systems. What started with academic research has evolved into commercially relevant security technology with the potential for global application. Now the team is growing again, and we are looking for two exceptional Senior C++ Developers who can operate where this technology really lives deep in the network stack. The Role: Where Packets Become Trust This isn't application-layer C++. It isn't framework-driven development. This is low-level, network-centric C and C++ engineering, working primarily around OSI Layers 2 and 3, where packet behaviour, routing decisions and tunnelling strategies determine whether distributed systems can communicate securely at scale. You'll design and build technology intended ultimately to operate across millions of industrial edge devices, enabling secure cloud-to-edge communication, device-to-device authentication, decentralised routing and interoperability, secure communication across potentially untrusted networks, and robust deployment and configuration for edge environments. You'll be close enough to the technology to influence how it develops shaping architecture, solving complex networking problems and contributing to security infrastructure that could eventually underpin critical systems around the world. And because this remains a relatively small, specialist engineering team, your contribution won't disappear into a huge development organisation. You'll see the impact of what you build. What the Director of Engineering Needs in This Role This is a tall order intentionally so. First and foremost, you must have genuine depth in network programming with C and C++. We're particularly interested in engineers with strong working knowledge of Layer 3 OSI protocols, low-level packet analysis and routing, OSPF, TAP/TUN devices and UDP tunnelling, UDP hole punching and STUN technologies, IPTables and packet routing strategies, code threading and multitasking, IPC and shared-memory communication, and Linux kernel-level development. You'll ideally also be comfortable with several of the following areas: compilers and static libraries, cross-compiling and porting across iOS, Android, Windows and Linux, containerised microservices using Docker and Kubernetes, CI/CD and GitLab environments, distributed cloud platforms including AWS, Azure and OVH, and development environments including VS Code, GitLab and Nexus. We don't expect one person to tick every box. What we do need is someone who can demonstrate a high level of competence in networking, packet routing and packet analysis, together with meaningful experience across at least three or four of the areas above. That networking foundation is important. Without it, the learning curve into the technology will simply be too steep. The Kind of Engineer Who Will Thrive Here You'll probably have 10+ years' experience designing, architecting and developing sophisticated C++ systems, although depth of expertise matters more than an arbitrary number. You'll be comfortable operating in Linux environments, including Debian, CentOS and embedded variants, and ideally understand symmetric and asymmetric cryptography, hashing and secure distributed systems. More importantly, you'll be someone who enjoys getting underneath a problem. Someone who wants to understand what is actually happening to the packet, rather than simply calling an abstraction several layers above it. You'll document clearly, automate where it makes sense, challenge assumptions constructively and be comfortable working in an environment where engineers are expected to think rather than simply execute tickets. Previous start-up, IoT, edge computing, GPU/AI or blockchain experience would be useful, but isn't essential. Why This Matters Nine years in, this is no longer an academic experiment. It isn't a concept. It isn't a slide deck. And it isn't another IoT start-up promising to change the world with an idea. There is patented technology, years of engineering behind it and a platform being prepared for much wider adoption. The next stage is about scale. The successful engineers won't simply be writing C++ code. They'll be helping determine how machines authenticate, communicate and establish trust across industrial systems, critical infrastructure and other highly secure environments. You'll receive a competitive base salary plus significant equity, reflecting the opportunity to join at a stage where your contribution can still materially influence both the technology and the company's future. The role is permanent and fully remote. If you're a serious low-level C++ engineer who understands packets, routing, tunnelling and network behaviour and the idea of taking technology from Oxford research roots towards global security infrastructure sounds more interesting than another conventional development role I'd like to hear from you. Edison Hill Search are operating and advertising as an Employment Agency for permanent positions and as an Employment Business for interim / contract / temporary positions. Edison Hill Search are an Equal Opportunities employer and we encourage applicants from all backgrounds.

ServiceNow Developer / Senior ServiceNow Consultant Salary: Up to £70,000 About the Company Founded in 2021, our client is a specialist ServiceNow consultancy helping organisations worldwide accelerate their digital transformation through innovative, customer-centric solutions click apply for full job details

Full Stack / Back End Java Developer - AI Location: London (Hybrid - 3 days onsite) Contract: 12 Months (PAYE) Rate: £550 per day PAYE (£66.94 per hour base rate, excluding holiday pay accrual) We are seeking an experienced Full Stack Java Developer , Back End Java Developer , or strong Front End Developer to join a high-performing engineering team on a 12-month PAYE contract based in London click apply for full job details

Senior Software Developer 12 month contract £650 per day (inside IR35) Hybrid (London) - 2 days per week onsite This role is responsible for the design, development, delivery, and ongoing improvement of soft-ware solutions within a secure, government-focused environment. The successful candidate will contribute to building resilient, scalable, and user-centred services, ensuring compliance with regulatory standards relating to controlled goods and exports. The position requires strong technical leadership, collaboration within multidisciplinary teams, and ownership of both development and live service performance. Key Responsibilities - Lead the design and delivery of scalable software solutions - Translate user needs into technical outcomes - Build secure, test-driven, high-quality code - Support and maintain live services (performance & stability) - Collaborate with multidisciplinary teams (BA, UCD, Developers) - Oversee development across multiple workstreams - Drive continuous improvement of systems and processes - Ensure integration across complex systems Technical Environment - Primary Stack: Python, Django - Backend-focused with full-stack awareness - Multiple user journeys ( 27 frontend journeys) - Government Digital Service (GDS) aligned delivery

.Net Developer (Contract) Duration: 12 Months (Possibility for extension) Location: Bromley/Hybrid (3 days per week on site) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Overview We are seeking a skilled Software Developer to join our dynamic development team. In this role, you will be responsible for developing, enhancing, and supporting a range of critical applications built on the .NET framework (4.6+), alongside some Python work. You will collaborate with technical and business colleagues across various locations, including North Carolina, Jersey City, Singapore, India, and London. Key Responsibilities: - Develop and maintain high-quality software applications using .NET (4.5+ / .NET Core) and Python. - Collaborate with cross-functional teams to gather requirements and design effective solutions. - Provide support to team members and stakeholders to ensure smooth project execution. - Liaise with technical and business colleagues to understand functional requirements and deliver solutions that align with business objectives. - Utilise your understanding of Web Services (REST, SOAP) to design and document APIs effectively. - Work with MS SQL Server, including TSQL, SSIS, SSRS for database management and reporting. - Utilise version control tools such as Git/Bitbucket and job scheduling tools like Autosys. - Contribute to the continuous improvement of development processes and practises. - Demonstrate a keen eye for detail and an aptitude for problem analysis and resolution. Skills & Experience: - Proven experience in software development with .NET (C#, .NET Core) and Python. - Deep functional knowledge or hands-on design experience with Web Services (REST, SOAP). - Understanding of API design and documentation best practises. - Proficient in MS SQL Server, TSQL, SSIS, SSRS. - Familiarity with Git/Bitbucket and job scheduling tools like Autosys. - Experience with front-end technologies such as Angular, JavaScript, and ASP.NET MVC is a plus. - Strong analytical and problem-solving skills with meticulous attention to detail. - Excellent communication and interpersonal skills; able to effectively collaborate with diverse teams. - Ability to work independently as well as within a team-oriented environment. - A proactive approach to innovation, with a willingness to share new ideas and technologies. Candidates will need to show evidence of the above in their CV in order to be considered. If you feel you have the skills and experience and want to hear more about this role 'apply now' to declare your interest in this opportunity with our client. Your application will be observed by our dedicated team. We will respond to all successful applicants ASAP however, please be advised that we will always look to contact you further from this time should we need further applicants or if other opportunities arise relevant to your skillset. Pontoon is an employment consultancy. We put expertise, energy, and enthusiasm into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an inclusive environment that helps them thrive. As part of our standard hiring process to manage risk, please note background screening checks will be conducted on all hires before commencing employment. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention.

We are looking for a Senior Python Developer to join one of our public sector clients. - Rate: up to 550 per day (inside IR35) - Duration: 12 months - Location: UK, remote working Public sector experience will be highly beneficial For full details regarding this Senior Python Developer role, please apply here and we'll be in touch