Salary: £84,000 - 84,000 per year Requirements: Experience of Digital Signal Processing Experience of the C Programming Language Experience of testing software products for ARM-based multi-core processing platforms Experience of communications protocols (e.g., SPI, UART, Ethernet, PCI-Express) Experience of DOORS Experience of test tools and techniques in both host and target environments Experience of test tools such as LDRA or equivalent for host testing Experience in model-based development, either in SysML/UML Knowledge of Real Time Operating Systems such as PikeOS or FreeRTOS Understanding of real-time embedded data handling mechanisms such as DMA, interrupts, and shared memory Exposure to wireless modulation or waveform processing concepts (desirable) Experience working with FPGA or SDR-based embedded systems (desirable) Responsibilities: Develop, integrate, and test embedded software Produce test requirements and test scripts for Unit, Subsystem, and System level testing on both host and target platforms Run tests, analyze results, and use target test facilities such as debuggers, probes, logic analyzers, and oscilloscopes Document and design work in UML Integrate software components with ARM multi-core platforms, FPGA subsystems, and RF transceiver interfaces Support real-time TX/RX data processing, buffering, and performance optimization on embedded targets Contribute to system integration and verification of Software Defined Radio (SDR) datalink capability Technologies: ARM Embedded Ethernet FPGA FreeRTOS Support UML Mobile More: We are a world-class defence organization based in Stevenage, Hertfordshire, looking to recruit an Embedded DSP Software Engineer for a 6-month contract with potential for extension. Our dynamic software team is dedicated to developing, testing, and delivering innovative solutions using a broad range of software technologies. We offer a supportive working environment with the possibility of a compressed 4-day work week and hybrid/remote options for tasks that allow it. Join us and contribute to cutting-edge projects in the aerospace and defence sector. last updated 17 week of 2026