Principal Mechanical Engineer

Company: Skilled Careers
Apply for the Principal Mechanical Engineer
Location: London
Job Description:

Senior / Principal Public Health Engineer

Location: City of London London

Salary: Up to £80,000 + Car Allowance + Travel + Bonus

Sector: Building Services / MEP Contracting

About the Opportunity

We are exclusively partnering with a leading, top-tier Mechanical & Electrical (MEP) contractor to find a highly capable Senior or Principal Mechanical Engineer.

With a headquarters in London and a growing footprint across the UK and Europe, this ambitious business delivers highly complex, technical engineering solutions. They specialize in managing major projects ranging from £1m to over £100m in value across high-growth sectors, including Data Centres, Commercial Shell & Core, High-End Fit-Out, Life Sciences, and Major Infrastructure.

If you are an innovative engineer looking to push the boundaries of design and delivery on landmark mega-projects, this is an exceptional opportunity to join a forward-thinking business that heavily invests in its people and sustainable engineering.

Your Role & Responsibilities

As a Senior or Principal Mechanical Engineer, you will take technical ownership of the mechanical systems across a portfolio of high-profile, multi-million-pound developments. You will bridge the gap between design and installation, ensuring complex systems are practically delivered to the highest standards.

Key Responsibilities

  • Technical Leadership: Lead the technical design, review, and validation of mechanical systems, including complex HVAC, chilled water, LTHW/MTHW, ventilation, and large-scale central plant rooms.
  • Project Delivery: Take ownership of the mechanical discipline from the pre-construction phase through to installation, commissioning, and handover on major projects (often £50m+ MEP value).
  • Coordination & Integration: Work closely with in-house electrical and public health teams, BIM coordinators, and external consultants to ensure seamless, clash-free system integration.
  • Client & Stakeholder Management: Act as the technical authority for mechanical engineering in client meetings, successfully managing relationships with main contractors, developers, and consulting engineers.
  • Sustainability & Compliance: Drive sustainable engineering practices, ensuring all designs comply with the latest British Standards, building regulations, and environmental certifications (e.g., BREEAM, LEED).
  • Mentorship: Provide guidance, technical support, and mentorship to intermediate and junior mechanical engineers within the technical department.

What We Are Looking For

We are seeking an established professional with a robust background in the UK Building Services sector, ideally with experience working for a major MEP contractor or a top-tier design consultancy on large-scale projects.

Key Qualifications & Experience

  • Extensive experience designing and delivering Mechanical systems for large-scale commercial, data centre, or infrastructure projects.
  • A strong understanding of the full project lifecycle, from initial concept and detailed design through to contractor-led installation and commissioning.
  • Industry-recognized qualifications (e.g., HNC/HND, BEng, or MEng in Mechanical Engineering or Building Services).
  • Membership or working towards chartered status (CEng) with IMechE or CIBSE is highly advantageous.
  • Proficiency in modern design and calculation software (e.g., Hevacomp, IES), with a strong grasp of how mechanical systems interface with Revit/BIM environments.
  • Excellent commercial awareness and the ability to interpret and challenge consultant designs to provide value-engineered, buildable solutions.

The Package

In return for your expertise, our client offers a highly competitive and comprehensive remuneration package designed to attract the industry’s best talent:

  • Base Salary: Up to £80,000 (depending on experience and level)
  • Vehicle: Generous Car Allowance
  • Travel: Fully expensed travel
  • Bonus: 10% performance and company bonus
  • Benefits: Comprehensive corporate benefits package, continuous professional development, and clear pathways to technical leadership.

If you are ready to take a leading technical role on some of Europe’s most complex and exciting engineering projects, reach out to Matt at Skilled Careers today to arrange a confidential discussion.

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Posted: July 17th, 2026