Senior / Principal Mechanical Engineer

Solihull Full-time, Permanent

Our client is a highly regarded MEP and environmental building services consultancy on a mission to design net zero buildings. With over 230 specialists across multiple UK offices, they deliver exemplar engineering solutions across healthcare, education, commercial and industrial sectors. Sustainability is at the core of everything they do, and they're committed to raising global standards in MEP engineering whilst designing better spaces for the world.

An excellent opportunity has arisen for an experienced Mechanical Engineer to join a collaborative, sustainability-driven consultancy at either a Senior or Principal level, depending on your experience. You'll play a key role in delivering complex mechanical building services designs across a varied and prestigious project portfolio — with a clear pathway to progress into a principal and leadership position for the right candidate.

This is a fantastic opportunity to take ownership of high‑profile projects, lead technical excellence, and contribute to the future direction of the mechanical discipline.

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• Lead and contribute to the mechanical design of complex, multi-disciplinary building services projects across healthcare, education, commercial and industrial sectors through all RIBA stages
  
• Take technical ownership of HVAC, plumbing, drainage and low carbon systems, ensuring designs meet quality, compliance and sustainability targets
  
• Act as a key client contact on projects, managing relationships, attending design team meetings and supporting successful project delivery
  
• Drive the incorporation of low carbon and net zero solutions including heat pumps, renewable energy systems, district heating and energy‑efficient building services
  
• Oversee and contribute to BIM/Revit MEP model development, ensuring full coordination of mechanical services with other disciplines
  
• Prepare, review and issue detailed design calculations, specifications, drawings and tender documentation
  
• Provide technical guidance and mentorship to junior and intermediate engineers within the mechanical team
  
• Support business development activity including bid writing, fee proposals and client engagement (Principal level)
  
• Review and quality‑check work produced by others, upholding the highest standards of technical output across the team
  
• Carry out site visits during the construction phase to review installations, resolve technical queries and support contract administration
  
• Maintain up‑to‑date knowledge of Building Regulations, CIBSE guidance, industry standards and emerging low carbon technologies
  
• Contribute to the development of internal processes, technical standards and best practice within the mechanical discipline
  

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• Degree qualified in Mechanical Engineering or Building Services Engineering
  
• 7+ years' experience in mechanical building services design
  
• Strong technical knowledge of HVAC, plumbing, drainage and low carbon systems
  
• Proven experience leading projects and managing client relationships
  
• Proficiency in mechanical design software, AutoCAD and BIM/Revit MEP
  
• Thorough understanding of Building Regulations, CIBSE guidance and industry standards
  
• Strong leadership, communication and mentoring skills
  
• Ability to manage multiple concurrent projects
  

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• Chartered Engineer status (CEng) or Incorporated Engineer (IEng)
  
• Member of CIBSE, IMechE or similar professional body
  
• Experience with low carbon and renewable energy systems (heat pumps, district heating, PV)
  
• Experience across healthcare, education, commercial or industrial sectors
  
• Business development or bid writing experience
  

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• Competitive salary and benefits package
  
• Hybrid and flexible working arrangements
  
• Chartership support and professional membership funding
  
• Sustainability‑led, purpose‑driven culture
  
• Varied, landmark project portfolio
  
• Strong mentorship and CPD programme
  
• Clear progression opportunities to Principal / Associate / Director level
  
• Collaborative and supportive team environment
  
• Involvement in business development and strategic growth