Principal Mechanical Engineer

Principal Mechanical Design Engineer – Commercial Projects (MEP Contractor) Location: London Salary/Package: Up to £75,000 + Car Allowance + Travel + Bonus + Comprehensive Package Skilled Careers is partnering with one of the most prominent and highly respected MEP contractors in the London market. Known for delivering complex, high-spec engineering solutions, this business is looking for a Principal Mechanical Design Engineer to spearhead the mechanical design delivery across a major portfolio of commercial sector projects. This is a fantastic opportunity to join a top-tier M&E specialist, take ownership of high-profile commercial developments, and lead a talented team in a dynamic design-and-build environment. The Role: As a Principal Mechanical Design Engineer, you will lead the mechanical design process from the pre-construction phase through to final delivery. A significant portion of the current pipeline consists of major commercial projects (including high-end office fit-outs, shell and core developments, and mixed-use commercial spaces). You will be responsible for ensuring that all mechanical designs are robust, fully coordinated, and optimized for seamless construction on site. Key Responsibilities:

• Lead the mechanical engineering design on major commercial projects, developing designs from Stage 3/4 through to Stage 5 construction issue.
• Act as the technical lead for mechanical services, attending design team meetings with clients, main contractors, and external consultants.
• Manage, mentor, and develop junior and intermediate mechanical design engineers within the team.
• Work closely with the BIM/CAD teams, Electrical counterparts, and Operational teams to ensure fully clash-resolved and buildable designs.
• Identify opportunities for value engineering and ensure all designs comply with the latest industry regulations and sustainability standards. About You:
• A proven track record as a Senior or Principal Mechanical Design Engineer, ideally working within a leading M&E contractor or a multi-disciplinary consultancy.
• Extensive and demonstrable experience delivering commercial sector projects in the UK.
• Strong technical background with the ability to manage complex mechanical design packages independently.
• Degree qualified in Mechanical Engineering or Building Services Engineering (Chartered status or working towards CEng is highly advantageous).
• Excellent communication skills, with the ability to lead technical discussions and manage key stakeholder relationships. The Package:
• Up to £75,000 Base Salary (dependant on experience)
• Generous Car Allowance
• Fully expensed travel
• Performance-related Bonus
• A comprehensive corporate benefits package For a confidential discussion about this position, please reach out directly: Matt Jones Section Manager – Building Services & M&E 📧 mjones@skilledcareers.co.uk 📞 07711 370552