Spectrum IT Recruitment
C/C++ Software Engineer
Get notified of more jobs like this · No spam, ever
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Software Engineer - 5G NR PHY
Spectrum IT Recruitment is working with an innovative technology business at the forefront of 5G and wireless communications. They’re looking for a Software Engineer to join their software team in Southampton.
This role would suit someone whose main focus is C or C++ software development, particularly in multithreaded or high-performance systems.
The Role
You’ll develop, integrate and optimise software that supports the company’s 5G NR Physical Layer (PHY) technology. Working with software, hardware, architecture and system-test teams, you’ll tackle performance challenges and help build reliable software for a demanding technical environment.
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Key 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
What We’re Looking For
Essential:
- Strong commercial experience developing software in C or C++
- Solid software engineering fundamentals
- Experience with multithreaded or high-performance software
- An interest in solving complex performance and optimisation challenges
Get help with your application
Your very own career expert that helps elevate your application to the next level.
Desirable:
- Knowledge of SIMD or hardware acceleration
- An understanding of signal processing
- Exposure to 5G, O-RAN or fronthaul protocols such as eCPRI
Why This Opportunity?
You’ll join a software team working on challenging 5G technology, with opportunities to solve performance problems and collaborate across several engineering disciplines.
If you’re a C/C++ Software Engineer who enjoys building and optimising complex software, we’d love to hear from you.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London