Senior Firmware Engineer

Salary: £95,000 - 95,000 per year

Requirements:

• Extensive experience in C for resource-constrained targets, including deep knowledge of memory layout, linker scripts, and drivers for SPI, I2C, and DMA.
• Strong command of DSP fundamentals and 3GPP standards.
• Several years of commercial experience in cellular or RF firmware.
• Familiarity with TI DSP architecture or Xilinx SoC development toolchains (bonus).
• Experience with open-source SDR tools like srsRAN or PCI-based host-to-DSP communication architectures (bonus).

Responsibilities:

• Design and maintain C firmware for TI DSPs and ARM aarch64 Linux platforms.
• Implement and optimize MAC/RLC protocol stacks for GERAN, UTRAN, E-UTRAN, and NR.
• Collaborate with FPGA teams to manage Xilinx SoC data paths and DMA transfers.
• Take ownership of the full embedded firmware stack, from initial investigation through to integration and release.
• Work with a high degree of autonomy on cutting-edge communication technology.

Technologies:

• ARM
• Embedded
• FPGA
• Firmware
• Linux
• C++

More:

We are a small, high-impact signal processing team based in Cambridge, looking for an experienced Senior Firmware Engineer. In this role, you will have the opportunity to work with advanced communication technology and drive the development of innovative solutions. Our competitive salary ranges from £80-90k depending on experience, and we foster a collaborative environment that values problem-solving and ownership. If you are ready to tackle complex firmware challenges and make a significant impact, we encourage you to apply!

last updated 31 week of 2026