Principal Mechanical Engineer - Mission Critical

Principal Mechanical Engineer

Location:

London

Salary: £65,000 - £85,000

Are you a talented Principal Mechanical Engineer looking to work on some of the most inspiring and socially impactful projects in the world?  

This is your opportunity to join a globally respected, employee-owned consultancy that blends technical excellence with a deep commitment to shaping a better world.

YOUR NEW ROLE

As a Principal Mechanical Engineer, you will play a key role in delivering multidisciplinary projects across sectors such as transport, education, healthcare, arts, and urban regeneration. You’ll collaborate with experts in architecture, structural engineering, sustainability, and digital design to create innovative, inclusive, and resilient infrastructure.

YOU WILL

Lead mechanical design delivery across all RIBA stages
Collaborate with multidisciplinary teams to ensure seamless project execution
Liaise confidently with clients, contractors, and stakeholders
Provide technical input into feasibility studies, reports, and proposals
Apply innovative approaches to engineering challenges  
WHAT YOU’LL NEED TO SUCCEED

Chartered Engineer (or working towards) with IET, CIBSE, or similar
Degree in Electrical Engineering or equivalent experience
Proven experience in building services electrical design
Proficient in energy‑modelling tools (ideally IES), 3D modelling (Revit) and familiar with 6

Sigma CFD for data‑centre applications.
Strong communication and collaboration skills
Eligibility for Security Clearance for certain high-profile projects  
WHY THIS IS A CAREER-DEFINING MOVE

You’ll be part of a global collective of designers, engineers, and consultants working on projects that make a real difference. From iconic cultural landmarks to sustainable urban developments, your work will contribute to a more inclusive, resilient, and equitable built environment.

This team offers:

A people-first, inclusive culture with a strong sense of purpose
Opportunities to work on globally recognised, multidisciplinary projects
Support for professional development and career progression
A collaborative environment that values innovation and social impact  
REMUNERATION & BENEFITS

Hybrid working model
Profit share scheme
Incredible pension scheme
Private medical insurance
Life assurance and income protection
Flexible benefits including dental, critical illness, and gym discounts
25 days annual leave + public holidays
Professional membership subscriptions
Volunteering days and community engagement opportunities  
ABOUT US
Energi People are a privately owned global multi-disciplinary recruitment consultancy, established in 2002.

We are one of the most experienced and successful recruitment consultancies in the built environment & have successfully helped some of the largest and most technically advanced building construction projects across the world be completed by bringing the best technical people in our industry together. We strive to help companies grow & careers flourish