Full job descriptionJob Title: Embedded Software Engineer (Junior to Senior - Multiple Openings)
Location: Hampshire
Salary: Flexible / Dependent on Experience + Comprehensive Benefits Package
Industry: Defence & Security Technology
Employment Type: Full-time, Permanent
About the OpportunityAn industry-leading systems innovator within the Defence and Security sector is seeking Embedded Software Engineers at all levels of experience (Junior, Mid-Level, and Senior/Principal). Joining an expanding multi-disciplinary engineering group, you will develop low-level firmware, real-time software, and driver-level software for high-reliability, mission-critical hardware platforms.
Whether you are starting your career with strong foundational C/C++ skills or are an experienced engineer looking to design complex system architectures for secure environments, this role offers direct involvement across full lifecycle software delivery.
Key Responsibilities*Design, develop, test, and deploy high-performance embedded software in C and C++ for real-time and resource-constrained environments.

*Implement board support packages (BSPs), device drivers, and low-level communications protocols for custom hardware platforms.

*Work closely with hardware, FPGA, and systems teams during platform bring-up, integration, and debugging.

*Develop bare-metal firmware or software running on RTOS (e.g., FreeRTOS, VxWorks) or Embedded Linux.

*Create unit tests, automated test scripts, and technical documentation to meet rigorous safety and quality standards.

*(Senior Levels): Lead software architecture design, drive code quality standards, perform technical reviews, and mentor junior developers.

What We Are Looking ForCore Technical Requirements*Education: Degree (BSc/MSc/PhD) in Computer Science, Embedded Systems, Electronic Engineering, or a related discipline.

*Core Languages: Strong hands-on experience or academic grounding in C and/or C++.

*Operating Systems: Experience with Bare-Metal development, RTOS, or Embedded Linux kernel/driver development.

*Hardware & Protocols: Familiarity with microcontrollers, ARM architectures, and standard interfaces (e.g., SPI, I2C, UART, CAN bus, Ethernet, PCIe).

*Debugging Tools: Lab experience using JTAG debuggers, oscilloscopes, logic analyzers, and hardware debugging suites.

Experience Level Breakdown*Junior Embedded Software Engineer: Degree or 1+ years of commercial exposure; solid understanding of C programming, memory management, and hardware fundamentals.

*Mid-Level Embedded Software Engineer: Proven track record of commercial embedded C/C++ development, driver development, and hardware integration.

*Senior / Principal Embedded Software Engineer: Extensive background in system architecture, multi-threaded RTOS/Linux environments, complex software design patterns, and technical leadership.

Security Clearance & EligibilityDue to the nature of the projects, candidates must hold or be eligible to achieve standard Security Clearance (e.g., UK SC Clearance / National Security Vetting).