Mechanical Maintenance Engineer (Ref: 006984)

As specialist Facilities Management recruiters, we are delighted to be supporting a highly prestigious London-based organisation in the appointment of a Mechanical Maintenance Engineer on a temporary basis. This is an excellent opportunity to join a large, complex and operationally busy site where engineering standards, compliance and service delivery are paramount. The role offers real responsibility, autonomy and the chance to play a key part within a professional and well-established facilities team. ‍ The Opportunity Reporting directly to the Chief Engineer, you will take ownership of mechanical maintenance and water hygiene compliance across the site. This is a hands-on position with leadership responsibilities, including supervising engineers and managing subcontractors when required. You will play a key role in ensuring statutory compliance, plant reliability and operational continuity within a live operational environment. ‍ Key Responsibilities • Deliver planned and reactive mechanical maintenance across HVAC systems, plant rooms, pumps, valves and water systems • Act as Responsible Person for Water Hygiene, managing Legionella risk assessments and remedial actions • Oversee weekly flushing regimes, temperature monitoring and compliance documentation • Conduct daily plant inspections and BMS checks • Raise and manage permits for high-risk works (hot works, confined spaces, working at height) • Supervise subcontractors including inductions and safety briefings • Support facilities requirements during live operations • Assist with compliance activities including emergency lighting, fire alarms, RCD testing and statutory inspections • Contribute to quarterly, six-monthly and annual PPM programmes including boiler servicing, HVAC inspections, gas safety checks, pressure testing and documentation reviews Participation in an emergency on-call rota is required. ‍ What We’re Looking For We are keen to speak with experienced mechanical professionals who can demonstrate: • Level 3 NVQ/Diploma in Mechanical Engineering (or recognised apprenticeship) • IOSH Working or Managing Safely • Legionella / Water Hygiene certification • Several years of hands-on mechanical maintenance experience • Experience leading engineers and managing contractors • Strong working knowledge of statutory compliance and SFG20 standards • Experience using CAFM systems • Excellent communication skills and a proactive approach Desirable qualifications include NEBOSH, Gas Safe, F-Gas, CSCS, LOLER/PUWER awareness and experience within complex or live operational environments.