Real-Time 5G Embedded Software Engineer (C/C++)

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

Job summary

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 role focuses on developing, integrating and optimising infrastructure software underpinning 5G NR Physical Layer (PHY) systems, with emphasis on real-time performance across embedded platforms. Collaboration with software, hardware and system-test teams is essential.

Qualifications

• Strong C or C++ development experience.
• Experience with a scripting language such as Python, Groovy or Bash.
• 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.

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.

Skills

C/C++ development

Python/Groovy/Bash

Real-time embedded Linux

SIMD/ hardware acceleration

FPGA/DSP acceleration

ARM-based platforms

Tools

Xilinx Vivado

Job description

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 role focuses on developing, integrating and optimising infrastructure software underpinning 5G NR Physical Layer (PHY) systems, with emphasis on real-time performance across embedded platforms. Collaboration with software, hardware and system-test teams is essential.