Modem Firmware Engineer

Modem Firmware Engineer

Watford, UK

Full-time, Permanent

£45,000 – £65,000 a year 

Role Summary

We are seeking a talented and enthusiastic Modem Firmware Engineer who has a sound understanding of complex DSP for wireless communications systems and related VHDL constructs. Experience of high-speed data interfaces to external devices using AXI, PCIe or similar is strongly desirable, as well as a sound understanding of Intellectual Property (IP) block maintenance, integration and interfacing. Also desirable is a basic understanding of low-level software in C or Python for testing and debugging purposes.

Required Experience and Skills

  • Knowledge of communications theory, modulation and error correction techniques
  • Experience of high-speed digital signal processing techniques especially as applied to wireless telecommunications
  • Experience of VHDL development for Xilinx FPGA and SoC using the Xilinx Vivado tool chain
  • Experience of high-speed interfaces such as AXI & PCIe
  • Graduate with minimum of 5 years’ experience in wireless telecoms or a closely related field

Highly Desired Skills

  • Competence in either C or Python
  • Experience of developing high reliability, safety critical and fault tolerant systems
  • Familiarity with schematic based board design using OrCAD

About TXMission

TXMission is a New Space company that specialises in SmallSat communications. We design and manufacture ground-breaking, high-performance modems (Software Defined Radios) that are unrivalled in the industry, with data transfer rates of up to 500Mbps and beyond.
Our products include Quest™, an on board high-performance modem, and MissionSpan™, our SmallSat network management system.

With our strong customer focus and unique technology, we are heading towards our goal of becoming the leading provider of SmallSat communication systems.

See for further information.


  • TXMission is an equal opportunity employer offering competitive salaries and great benefits
  • Tremendous scope for personal growth and professional development
  • Highly talented, passionate, international team that is changing the space industry
  • Modern working environment with flexible working hours


£45,000 up to £65,000 depending on experience. Based in Watford, UK


TXMission Ltd, CP House, Otterspool Way, Watford WD25 8HU, Hertfordshire, UK

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