Senior Mechanical Project Engineer £90,000–£95,000 Accommodation Car/Travel Allowance Benefits London | Hyper-Scale Data Centre Programme A leading international M&E contractor delivering some of Europe’s most complex mission-critical facilities is growing its mechanical engineering team on a major London data centre project. This contractor is known for engineering excellence, long-term career development, and delivering high-value hyperscale campuses across the UK and EU. This is a senior-level role with influence across design, delivery, coordination, quality and commissioning. Role Overview * Lead mechanical engineering delivery across major mechanical packages * Drive design review, technical submittals, RFI management & design validation * Manage daily coordination between engineering, installation and commissioning teams * Oversee subcontractor performance, installation quality and programme adherence * Work with BIM, QA/QC and commissioning to align quality and handover requirements * Provide technical leadership, mentoring junior engineers and supporting project strategy * Interface with the client, consultant teams and internal leadership * Support project governance, weekly reporting, risk/issue tracking and milestone planning What You Bring * 6–10 years mechanical engineering/project engineering experience * Exposure to mission-critical, data centre, pharma or complex MEP builds * Strong understanding of HVAC, refrigeration, chilled water, plant & pipework systems * Ability to manage large mechanical packages from design through commissioning * Leadership, communication and stakeholder management strengths * Strong documentation, technical reporting and problem-solving ability