Salary: £45,000 - 85,000 per year Requirements: We are looking for an experienced Principal Software Architect with significant software engineering and architecture experience. We need a strong background in distributed and cloud-connected systems. We prefer experience integrating hardware or embedded systems with software platforms. Experience in IoT, telecoms, or connected device environments is preferred. We need strong stakeholder management and technical leadership skills. We are looking for someone comfortable balancing greenfield development with legacy environments. We value experience working in complex engineering environments with scalable, maintainable systems. We are looking for someone based in or able to work in Bristol, UK with regular onsite collaboration. Responsibilities: We define end-to-end architecture across embedded devices, cloud, mobile, and desktop platforms. We drive architectural standards and make major technical decisions. We reduce technical debt and support the modernisation of legacy systems. We align teams around scalable engineering practices. We validate ideas through lightweight prototyping and experimentation. We support the adoption of modern tooling, including AI-assisted development. We work closely with engineering leadership and domain teams to set technical direction. We ensure our systems evolve in a scalable and maintainable way. Technologies: AI Architect Cloud Embedded Firmware Hardware IoT Support Mobile More: We are Radiodetection, part of SPX Technologies, and we are hiring for a high-impact Principal Software Architect role in Bristol, UK. This is a hybrid position with typically three days per week onsite, where we collaborate closely across engineering leadership and domain teams. You will have genuine influence over technical direction and architectural decisions, working on complex engineering challenges with real-world impact. The role combines strategic leadership with hands-on technical work, and gives us the opportunity to modernise and shape our global software ecosystem across firmware, cloud, desktop, and mobile platforms. last updated 24 week of 2026