About Hartwell Manufacturing Hartwell Manufacturing is a family-run engineering business with nearly 50 years of experience delivering high-quality acoustic enclosures and heavy steel fabrication projects. From our Ossett headquarters, we support clients in the power, data centre and industrial sectors with engineered solutions built on precision, collaboration and reliability. The culture is hands-on, team-focused and proud of the work we produce. Overview The Commissioning Engineer/Inspector plays a hands-on, site-based role ensuring that all mechanical and electrical elements of acoustic enclosure fit-out works meet client and internal quality requirements. This position involves being physically present on the shop floor, actively inspecting works in progress, supporting fit-out teams, and addressing issues in real time to maintain build quality and prevent rework. Key Responsibilities Maintain a strong daily presence on the shop floor, carrying out real-time inspections on mechanical and electrical fit-out activities. Attend morning production meetings to understand priorities and actively communicate current quality issues and risks. Update quality trackers and route cards once inspections are completed, ensuring accurate and timely documentation. Perform hands-on dimensional checks, physical inspections, and verification of installations in line with approved drawings, specifications, and quality standards. Witness pressure testing of fuel tanks and ..... full job details .....