Principal Software Engineer

Senior / Principal Software Engineer

Location: Kent (Onsite) 4 days per week.

Salary: Up to 65,000 depending on experience

Due to the nature of the work, applicants are required to obtain security clearance and must be a sole British national.

Copello is working with a leading engineering, and technology organisation is seeking Senior / Principal Software Engineer to join its growing team developing advanced, safety-critical systems.

This is an opportunity to work on highly complex products within a regulated environment, contributing to the design, development and delivery of cutting-edge software solutions used in mission-critical applications. You'll play a key role in shaping software architectures, solving complex technical challenges and supporting projects throughout the full engineering lifecycle.

Key Responsibilities

• Lead the design and development of embedded software solutions for complex systems.

• Define software and system architectures from requirements using structured design methodologies.

• Support integration, verification and validation activities within a safety-critical environment.

• Participate in design reviews, technical decision-making and continuous improvement initiatives.

• Engage with customers and stakeholders to understand requirements and resolve technical challenges.

• Contribute to the successful delivery of high-quality, compliant engineering solutions.

About You

• A degree or equivalent qualification in Software Engineering, Electronics Engineering, Physics, Mathematics or a related discipline.

• Strong commercial experience developing software in C and/or C++.

• Experience designing software architectures using UML or other model-based design techniques.

• Familiarity with tools such as CAMEO, Enterprise Architect, Rhapsody or similar modelling environments.

• Experience developing software that interfaces with hardware in real-time or embedded environments.

• Knowledge of safety-critical development standards and regulated engineering processes.