C/C++ Software Engineer

Salary: £45,000 - 50,000 per year

Requirements:

• Strong commercial experience developing software in C or C++
• Solid software engineering fundamentals
• Experience with multithreaded or high-performance software
• Interest in solving complex performance and optimisation challenges
• Desirable: knowledge of SIMD or hardware acceleration
• Desirable: understanding of signal processing
• Desirable: exposure to 5G, O-RAN or fronthaul protocols such as eCPRI

Responsibilities:

• Develop C/C++ software used to run and test 5G NR PHY algorithms
• Improve software performance through optimisation and multithreading
• Integrate software components and help 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
• Contribute to technical reviews and wider software engineering decisions

Technologies:

• Hardware
• Support
• C++

More:

We are an innovative technology business at the forefront of 5G and wireless communications, seeking a Software Engineer to join our software team in Southampton. Our team develops, integrates and optimises software supporting our 5G NR Physical Layer (PHY) technology, working across software, hardware, architecture and system testing to build reliable software and tackle performance challenges in a demanding technical environment. This opportunity offers challenging 5G work and collaboration across several engineering disciplines.

last updated 40 week of 2026