Firmware Developer

Job Title: C++ Firmware Developer

Location: Maple Heights, Ohio 44137 (In office)

Employment Type: Full Time

Overview

We are seeking a skilled C++ Firmware Engineer with hands-on experience in embedded systems and a strong understanding of vending machine technologies. This role involves developing, maintaining, and optimizing firmware that powers vending machines, including payment systems, inventory tracking, and hardware integration.

Key Responsibilities

• Design, develop, test, and maintain embedded firmware in C++ for vending machine systems

• Interface with hardware components such as bill validators, coin mechanisms, card readers, touchscreens, and IoT modules

• Implement and debug communication protocols (e.g., MDB, UART, SPI, I2C) commonly used in vending environments

• Collaborate with electrical, mechanical, and software engineers to ensure seamless integration

• Optimize system performance, memory usage, and power consumption

• Develop and maintain diagnostic tools and firmware update mechanisms (OTA or wired)

• Troubleshoot field issues and provide root cause analysis

• Ensure compliance with industry standards and payment security requirements (e.g., PCI, EMV where applicable) Required Qualifications

• Bachelor's degree in Computer Engineering, Electrical Engineering, or related field (or equivalent experience)

• 3+ years of experience in embedded firmware development using C++

• Strong understanding of real-time operating systems (RTOS) or bare-metal systems

• Experience working with microcontrollers (e.g., ARM Cortex-M, AVR, PIC)

• Familiarity with vending machine protocols such as MDB (Multi-Drop Bus) & DEX

• Experience integrating payment systems (cash and cashless)

• Proficiency with debugging tools (oscilloscopes, logic analyzers, JTAG debuggers)

• Strong problem-solving skills and attention to detail Preferred Qualifications

• Experience with IoT connectivity (Wi-Fi, LTE, Bluetooth) in embedded devices

• Knowledge of Linux-based embedded systems

• Familiarity with cloud integration for telemetry and remote management

• Experience in low-power design and optimization

• Understanding of cybersecurity best practices for embedded systems Nice-to-Have Skills

• Experience with vending machine management systems (VMS)

• Understanding or familiarity with DEX protocol

• Understanding or familiarity with MDB communication protocol

• Knowledge of telemetry, remote monitoring, and predictive maintenance What We Offer

• Competitive salary and benefits package

• Opportunity to work on innovative, real-world embedded systems

• Collaborative engineering environment

• Career growth and development opportunities

Job Title: C++ Firmware Developer

Location: Maple Heights, Ohio 44137 (In office)

Employment Type: Full Time

Overview

We are seeking a skilled C++ Firmware Engineer with hands-on experience in embedded systems and a strong understanding of vending machine technologies. This role involves developing, maintaining, and optimizing firmware that powers vending machines, including payment systems, inventory tracking, and hardware integration.

Key Responsibilities

• Design, develop, test, and maintain embedded firmware in C++ for vending machine systems

• Interface with hardware components such as bill validators, coin mechanisms, card readers, touchscreens, and IoT modules

• Implement and debug communication protocols (e.g., MDB, UART, SPI, I2C) commonly used in vending environments

• Collaborate with electrical, mechanical, and software engineers to ensure seamless integration

• Optimize system performance, memory usage, and power consumption

• Develop and maintain diagnostic tools and firmware update mechanisms (OTA or wired)

• Troubleshoot field issues and provide root cause analysis

• Ensure compliance with industry standards and payment security requirements (e.g., PCI, EMV where applicable) Required Qualifications

• Bachelor's degree in Computer Engineering, Electrical Engineering, or related field (or equivalent experience)

• 3+ years of experience in embedded firmware development using C++

• Strong understanding of real-time operating systems (RTOS) or bare-metal systems

• Experience working with microcontrollers (e.g., ARM Cortex-M, AVR, PIC)

• Familiarity with vending machine protocols such as MDB (Multi-Drop Bus) & DEX

• Experience integrating payment systems (cash and cashless)

• Proficiency with debugging tools (oscilloscopes, logic analyzers, JTAG debuggers)

• Strong problem-solving skills and attention to detail Preferred Qualifications

• Experience with IoT connectivity (Wi-Fi, LTE, Bluetooth) in embedded devices

• Knowledge of Linux-based embedded systems

• Familiarity with cloud integration for telemetry and remote management

• Experience in low-power design and optimization

• Understanding of cybersecurity best practices for embedded systems Nice-to-Have Skills

• Experience with vending machine management systems (VMS)

• Understanding or familiarity with DEX protocol

• Understanding or familiarity with MDB communication protocol

• Knowledge of telemetry, remote monitoring, and predictive maintenance What We Offer

• Competitive salary and benefits package

• Opportunity to work on innovative, real-world embedded systems

• Collaborative engineering environment

• Career growth and development opportunities

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