Senior Software Engineer - C/C

Salary: £75,000 - 85,000 per year

Requirements:

• Extensive commercial experience developing software in C or C++
• Strong software engineering fundamentals and sound technical judgement
• Proven experience with multithreaded or high-performance software
• Ability to take ownership of complex performance and optimisation challenges
• Knowledge of SIMD or hardware acceleration is desirable
• Understanding of signal processing is desirable
• Exposure to 5G, O-RAN or fronthaul protocols such as eCPRI is desirable

Responsibilities:

• Take technical ownership of C/C++ software development used to run and test 5G NR PHY algorithms
• Drive software performance improvements through optimisation and multithreading
• Lead the integration of software components and resolve complex technical issues
• Develop and maintain automated testing and CI processes
• Collaborate with hardware, architecture and system-test teams
• Support interoperability testing with customers, vendors and operators
• Provide senior technical input into reviews and wider software engineering decisions

Technologies:

• Hardware
• Support
• C++

More:

We are supporting an innovative technology business at the forefront of 5G and wireless communications in its search for a Senior Software Engineer to join its software team in Southampton. The role focuses on developing, integrating and optimising software that supports 5G NR Physical Layer (PHY) technology. You will work with software, hardware, architecture and system-test teams to address complex performance challenges and help shape reliable software for a demanding technical environment.

last updated 44 week of 2026