Software Engineer

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 Th...