Logo-of-Spectrum-IT-Recruitment-hiring-for-jobs-in-UK-on-GrabJobs

Senior Software Engineer - C/C

Job Description - Senior Software Engineer - C/C

Spectrum IT Recruitment is working with an innovative technology business at the forefront of 5G and wireless communications. They're looking for a Senior Software Engineer to join their software team in Southampton.

This role would suit an experienced engineer whose main focus is C or C++ software development, particularly in multithreaded or high-performance systems.

The Role

You'll take a leading role in developing, integrating and optimising software that supports the company's 5G NR Physical Layer (PHY) technology. Working with software, hardware, architecture and system-test teams, you'll tackle complex performance challenges and help shape reliable software for a demanding technical environment.

Key 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 resolution of 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 decisionsWhat We're Looking For

Essential:

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
The ability to take ownership of complex performance and optimisation challengesDesirable:

Knowledge of SIMD or hardware acceleration
An understanding of signal processing
Exposure to 5G, O-RAN or fronthaul protocols such as eCPRI

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy
Only candidates based in UK and eligible to work in UK are allowed
Original job Senior Software Engineer - C/C posted on GrabJobs ©. To flag any issues with this job please use the Report Job button on GrabJobs.
Share Job
Share Job

Similar Senior Software Engineer Jobs in the UK

GrabJobs is the no1 job portal in the UK, connecting you to thousands of jobs fast! Find the best jobs in the UK, apply in 1 click and get a job today!

Mobile Apps

Copyright © 2026 Grabjobs Pte.Ltd. All Rights Reserved.