C / C++ Software Engineer

Spectrum IT Recruitment; Southampton; On-site; GBP 55,000 - 75,000; Full time

Job summary

Spectrum IT Recruitment is partnering with an innovative technology business in Southampton that is at the forefront of 5G and wireless communications. They are seeking a Software Engineer focused on C or C++ development in high-performance, multithreaded environments.

You will develop, integrate and optimise software supporting 5G NR PHY technology, collaborating with hardware, architecture and system-test teams to address performance challenges and deliver reliable software.

Qualifications

• Strong commercial experience developing software in C or C++.
• Experience with multithreaded or high-performance software.
• Solid software engineering fundamentals.
• An interest in solving complex performance and optimisation challenges.

Responsibilities

• Develop C/C++ software to run and test 5G NR PHY algorithms
• Improve software performance through optimisation and multithreading
• Integrate software components and resolve 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 broader software decisions

Skills

C/C++

Multithreading

High-performance

Software fundamentals

Job description

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.

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

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.