Mechanical Resident Engineer

Europe’s leading design, engineering, and regulatory consultancy organisation with c22,000 staff operating from 14 European countries, including 14 UK branches they design, and plan sustainable communities, infrastructure, and environments in 70 countries worldwide generating sales of £2.3 billion. The organisation is united by a commitment to collaboration, innovation, sustainability, and creating a positive impact on the shape of tomorrow for generations to come.

In this critical on-site role, you will act as the company’s primary representative during the construction phase of a mixed use high spec residential scheme. You will oversee the installation, testing, and commissioning of mechanical building services systems — including heating, ventilation, air conditioning (HVAC), plumbing, drainage, fire suppression, and related systems — ensuring full compliance with the detailed designs, specifications, relevant codes/standards, project timelines, quality expectations, and budget constraints.

You will collaborate closely with contractors, subcontractors, architects, other engineering disciplines, clients, and authorities to resolve technical issues, manage variations, and deliver high-quality, sustainable building services outcomes.

• 
  
• Serve as the lead on-site mechanical engineering authority and safeguarding the integrity of the mechanical building services design during construction.
  
• Conduct regular site inspections and monitor the installation, testing, and commissioning of mechanical systems (e.g., air handling units, chillers, boilers, ductwork, pipework, controls/BMS, VRF systems, domestic water services, above-ground drainage, sprinklers, and specialist systems).
  
• Verify that all mechanical works comply with approved drawings, specifications, building regulations, British/European/International standards, and health & safety requirements.
  
• Review and approve (or recommend) contractor technical submittals, method statements, material samples, shop drawings, and as-built documentation related to mechanical services.
  
• Identify, document, and resolve site technical queries, design clarifications, and non-conformances promptly; coordinate with the design office to issue instructions or variations as needed.
  
• Witness key testing and commissioning activities and verify system performance against design intent and energy targets.
  
• Manage progress monitoring for mechanical packages, attend coordination and progress meetings, and contribute to overall project reporting.
  
• Liaise effectively with main contractors, M&E subcontractors, client representatives, and other stakeholders to facilitate smooth project delivery and minimize delays or disputes.
  
• Ensure robust record-keeping, including photographic evidence, test certificates, and handover documentation to support final certification and client O&M manuals.
  
• Promote and uphold the consultancy’s commitment to safety, quality, and sustainable design principles on site.
  

• 
  
• Proven experience as a Resident Engineer, Clerk of Works, or Site Engineer with a strong focus on mechanical building services installation/commissioning.
  
• Previous consultancy or design office background, providing insight into design intent and coordination challenges.
  
• In-depth technical knowledge of HVAC, plumbing, fire protection, and building controls systems in modern commercial/residential buildings.
  
• Familiarity with UK/international building regulations, standards, and sustainability frameworks.
  
• Strong understanding of construction processes, contract administration, and change/variation management.
  
• Excellent communication, problem-solving, and interpersonal skills with the ability to influence contractors and resolve conflicts diplomatically.
  
• Experience on complex projects.