Salary: £75,000 - 85,000 per year Requirements: We are looking for an experienced software engineer with principal-level ownership experience. We need strong experience with distributed systems and microservices architectures. We require hands-on engineering experience with architectural responsibility. We value experience working in Linux-heavy, security-constrained environments. We are looking for a strong testing mindset with exposure to CI/CD and DevSecOps practices. We want someone who can confidently influence technical direction within small, senior teams. Responsibilities: We own a Linux-based, microservices-driven software platform. We develop core services and system components hands-on. We define and evolve secure, scalable system architecture. We work closely with and guide offshore engineering teams. We contribute to strong testing, CI/CD, and DevSecOps practices. We take technical ownership of a complex distributed system used in security and critical infrastructure environments. Technologies: CI/CD DevSecOps Hardware Linux Security microservices Architect More: We are a specialist engineering business based in Winchester, and this is a hybrid role with four days per week in the office. We build software that integrates directly with radiation detection hardware deployed in highly sensitive environments, enabling real-time monitoring, telemetry, alerting, and operational decision-making where reliability, security, and accuracy are critical. We offer a salary of £75,000 to £85,000, along with private healthcare and an enhanced pension. This is an opportunity to join a small but highly capable onshore team, work alongside an established offshore engineering function, and have genuine influence over the evolution of a complex platform with real-world impact. last updated 21 week of 2026