Software Engineer
Spectrum It Recruitment Limited
Southampton · posted 1 August 2026
Location
Southampton, England
Spectrum IT Recruitment
is working with an innovative technology business at the forefront of
5G and wireless communications , who are looking for a talented
Software Engineer
to join their growing software team in Southampton. This is an excellent opportunity for a Software Engineer with strong
C/C++
skills who enjoys working close to the hardware and solving challenging performance and optimisation problems. The Role You'll be responsible for developing, integrating and optimising the infrastructure software underpinning
5G NR Physical Layer (PHY) systems , with a particular focus on delivering real-time performance across embedded platforms. You'll work closely with software, hardware, architecture and system-test teams, contributing to the development of high-performance 5G technology. Key Responsibilities ?? Develop software used to run and test 5G NR PHY algorithms ?? Develop and optimise platform-specific code for embedded systems ?? Apply
SIMD, multi-threading and hardware acceleration
techniques ?? Integrate PHY algorithms with
ARM-based platforms and boards ?? Improve and maintain CI testing across the platform ?? Support interoperability testing with customers, vendors and operators ?? Work closely with hardware, system architecture and system-test teams ?? Contribute to technical reviews and customer-facing activities What We're Looking For Essential: Strong C or C++ development experience Experience with a scripting language such as
Python, Groovy or Bash Strong software engineering fundamentals and an interest in performance optimisation Desirable: Experience developing for
real-time embedded systems and Linux Knowledge of
SIMD, FPGA or DSP-based hardware acceleration Understanding of signal processing and optimisation techniques Experience with FPGA toolchains, particularly
Xilinx Vivado Exposure to
O-RAN architecture and fronthaul protocols such as eCPRI Experience working with ARM-based platforms Why This Opportunity? This is a chance to work on genuinely cutting-edge
5G technology , tackling interesting engineering challenges around performance, embedded systems and hardware acceleration. If you're a Software Engineer who enjoys working at the intersection of
software, hardware and wireless communications , we'd love to hear from you. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
TPBN1_UKTJ
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is working with an innovative technology business at the forefront of
5G and wireless communications , who are looking for a talented
Software Engineer
to join their growing software team in Southampton. This is an excellent opportunity for a Software Engineer with strong
C/C++
skills who enjoys working close to the hardware and solving challenging performance and optimisation problems. The Role You'll be responsible for developing, integrating and optimising the infrastructure software underpinning
5G NR Physical Layer (PHY) systems , with a particular focus on delivering real-time performance across embedded platforms. You'll work closely with software, hardware, architecture and system-test teams, contributing to the development of high-performance 5G technology. Key Responsibilities ?? Develop software used to run and test 5G NR PHY algorithms ?? Develop and optimise platform-specific code for embedded systems ?? Apply
SIMD, multi-threading and hardware acceleration
techniques ?? Integrate PHY algorithms with
ARM-based platforms and boards ?? Improve and maintain CI testing across the platform ?? Support interoperability testing with customers, vendors and operators ?? Work closely with hardware, system architecture and system-test teams ?? Contribute to technical reviews and customer-facing activities What We're Looking For Essential: Strong C or C++ development experience Experience with a scripting language such as
Python, Groovy or Bash Strong software engineering fundamentals and an interest in performance optimisation Desirable: Experience developing for
real-time embedded systems and Linux Knowledge of
SIMD, FPGA or DSP-based hardware acceleration Understanding of signal processing and optimisation techniques Experience with FPGA toolchains, particularly
Xilinx Vivado Exposure to
O-RAN architecture and fronthaul protocols such as eCPRI Experience working with ARM-based platforms Why This Opportunity? This is a chance to work on genuinely cutting-edge
5G technology , tackling interesting engineering challenges around performance, embedded systems and hardware acceleration. If you're a Software Engineer who enjoys working at the intersection of
software, hardware and wireless communications , we'd love to hear from you. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.
TPBN1_UKTJ