Echelon Engineers are working with a cutting-edge engineering firm at the forefront of high-spec process plant innovation. We're supporting them in the final commissioning phase of a large-scale, custom-built system and they’re now urgently looking to bring on a hands-on Commissioning Engineer to help complete, test, and integrate the plant. This is a practical, site-based role ideal for an experienced engineer who thrives in dynamic environments where they can roll up their sleeves and get stuck in. As Commissioning Engineer, you’ll: * Support the mechanical and electrical assembly of heavy, custom-built equipment * Commission and troubleshoot systems involving pressure vessels, heaters, instrumentation, valves, and control systems * Interpret SolidWorks drawings and understand system-level design intent * Work alongside the engineering and maintenance teams to ensure smooth integration * Assist in producing and refining build and handover documentation * Ensure compliance with safety standards (e.g. ATEX, high-pressure systems) We’re looking for someone who’s: * From a mechanical, electrical, or multi-disciplinary engineering background * Previously worked on pressure systems, high-temperature systems, or regulated industrial equipment * Comfortable building, wiring, troubleshooting, and making s...