Senior Mechanical Engineer

Senior Mechanical Design Engineer - London Up to £70,000 | Permanent Annual bonus of 5-10% Car Allowance Travel to and from office paid for Four days in-office, Fridays from home A well-established M&E contractor is looking for a Senior Mechanical Design Engineer to join its growing in-house design team in London. Unlike a traditional consultancy role, you'll work alongside the construction, BIM, commercial and delivery teams, so you can see your designs built rather than stopping at the drawing stage. The Role You'll take ownership of the mechanical design on office and commercial fit-out projects, developing it through RIBA Stages 2 to 5. You'll be involved from early design reviews and tender support through to detailed design, coordination and construction. Your responsibilities will include: * Designing heating, cooling, ventilation and public health systems for Design & Build projects. * Carrying out mechanical calculations, equipment selection and system sizing. * Reviewing consultant designs, spotting technical and buildability issues, and taking them through detailed design and construction. * Producing coordinated, compliant and cost-effective solutions, working closely with BIM and digital construction teams and aligning with electrical and architectural requirements. * Reviewing technical submissions, specifications and drawings. * Supporting Design Managers and project teams, and attending design meetings with clients, consultants and contractors. * Supporting commissioning and resolving technical issues on site. * Mentoring junior engineers. About You We're ideally looking for: * Strong experience in mechanical building services design, with a solid understanding of HVAC systems. * A track record of delivering detailed mechanical designs, and either experience at Senior Engineer level or readiness to step up. * Experience on office or commercial fit-out projects, or other technically complex schemes. * Experience in an MEP consultancy or contractor design environment. * Good knowledge of UK building regulations and industry standards. * Proficiency in mechanical design software. * Strong communication and coordination skills. Contractor experience is an advantage but not essential. Consultancy engineers who want more exposure to construction and delivery are encouraged to apply. What We Offer * Salary of up to £70,000, depending on experience. * Annual bonus of 5-10%, paid every year. * Car allowance. * Travel to and from the office paid for. * Work on high-profile office and commercial fit-out projects. * Real scope to progress into Principal, Design Management or senior technical roles. Interested? If you're a mechanical design engineer looking for more ownership and the chance to see your designs through from concept to completion, we'd love to hear from you. All applications will be treated confidentially