Principal Mechanical Engineer Location: Remote (occasional travel to local office: London, Manchester, Newcastle, Glasgow) 6 Month rolling contract £65 per hour Umbrella - Inside IR35 only Overview ARM is recruiting for an experienced Mechanical Engineer to support a growing Energy Transition team delivering some of the UK's most innovative low- and zero-carbon energy projects. The Role As a senior member of the engineering team, you will lead mechanical engineering activities from early-stage feasibility studies through to detailed design, construction support, operation and decommissioning. You will work closely with developers, utilities, EPC contractors, OEMs, government bodies and investors to deliver safe, practical and commercially effective engineering solutions. Key Responsibilities Develop innovative and cost-effective mechanical engineering solutions Lead mechanical design activities across Feasibility, Concept, FEED and Detailed Design stages Produce engineering calculations, specifications and datasheets Specify and assess major equipment including: Turbines Compressors Pumps Pressure vessels Heat exchangers Support development of PFDs and P&IDs alongside process engineers Participate in plant layout development and 3D model reviews Review vendor proposals and liaise with equipment suppliers Provide technical support for operational plant integrity and troubleshooting Support bid p...