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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Integration & Test Engineers - Open Call (All Levels) - **Company:** Rowden - **Location:** Bristol, UK - **Contract:** Permanent contract - **Skills:** Systems Engineering, Automation of Tests, Continuous Integration, Emulators, Hardware-In-The-Loop Simulation, Python (Programming Language), Regression Testing, Systems Integration, Test Execution Engine, Scripting, Build Tools, Software Version Control - **Published:** September 18, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=08a74a326caf312b ## About the Role * Real experience integrating and testing complex, multi-disciplinary systems, ideally where software, hardware and networks all meet. * Strong test engineering fundamentals. You know how to decide what is worth testing, and how to prove something rather than hope it works. * For senior roles, demonstrable awareness of distributed communication systems. How they are deployed, how the trade-offs between different communications bearers & spectrums will affect performance. * Practical automation skills. Scripting and tooling, most likely in Python, plus CI pipelines, containers and version control. * Experience with test infrastructure of some kind: hardware-in-the-loop, simulation or emulation, network impairment, instrumentation, or automated test frameworks. * An instinct for reuse. You build tools other people can pick up. * Comfort with ambiguity and pace. Our programmes move quickly and the requirements do not always arrive neatly. * Clear communication with engineers, project teams and customers alike. Useful, but not essential: * RF, comms, EW or sensing experience. * Defence, aerospace, space or other safety- or mission-critical backgrounds. * Autonomy and robotics * Model-based systems engineering, or formal V&V in a regulated environment. You want to work on hard problems, at pace, with people who are very good at what they do. You would rather build something than inherit it. You are happy being told the current approach needs improving, because you will be one of the people improving it. And you care that what we ship actually works for the person using it at the far end of a bad network. ## Description System Integration & Test Discipline Lead. Someone to own SI&T as a discipline. Working with others in the Engineering team (Head of Systems, VP Engineering), you would set the technical vision for your area, decide where to focus effort, grow the people, and build the tooling, environments and engineering practices that let projects move faster. You need to understand testing deeply enough to know what good looks like, and be excited to designing and evolve a capability, rather than only operating a process. You will also stay close to the work - expect to be technically hands-on, working alongside teams rather than only directing them. Principal and Senior SI&T Engineers. People to lead integration and test on significant programmes, and to build the reusable T&E capability the rest of the business will rely on. Test automation, instrumentation, simulation and emulation environments, network impairment, hardware-in-the-loop, data capture and analysis. You will be hands-on and you will set the standard others follow. SI&T Engineers. People to run integration and test activity on live projects, get real systems working together, find the failures early and work to resolve them. If you are strong but sit between these levels, apply anyway. We will work out the right shape together. Current titles and years of experience matter less to us than what you can do. Tell us where you think you fit. What you'll be doing Depending on level, you will: * Understand complex systems in development and design the SI&T regime to ensure rigor and repeatability for rapidly iterating systems. At senior levels, this includes developing the Rowden standard approach for test design and execution, to be utilised across our portfolio. * Integrate complex systems made up of software, compute, networks, radios, sensors and user devices, then prove they work under realistic conditions. * Build reusable test and evaluation capability that works across projects. * Automate test execution, data capture and analysis so teams get fast, trustworthy feedback. * Set up simulation and emulation environments that let us explore system behaviour across contested and degraded networks. * Reproduce awkward, intermittent failures quickly, and turn them into regression tests that stay. * Work upstream with systems, software, hardware and product teams so testability is designed in. * Develop and deploy a cross-Rowden method for capture and full lifecycle close of testing issues and defects, ensuring a closed loop process back into the design cycles. * Set and raise the engineering standards for integration and test across the business.