Software Engineer
Spectrum IT Recruitment Limited
Southampton · posted 10 August 2026
Salary
£50,000 a year
Job type
full time
Location
Southampton, Hampshire
Category
Information Technology
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.
Is this the role you are looking for If so read on for more details, and make sure to apply today.
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 optimisationDesirable:
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 platformsWhy This Opportunity? xwzovoh
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
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Is this the role you are looking for If so read on for more details, and make sure to apply today.
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 optimisationDesirable:
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 platformsWhy This Opportunity? xwzovoh
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