Senior Mechanical Services Design Engineer Location: Leeds Salary: £52,500–£62,500 + Car Allowance Employment Type: Permanent, Full-Time The Opportunity Our client is seeking an accomplished Senior Mechanical Services Design Engineer to join their expanding northern operations. This is a key technical role where you will lead the mechanical design function—driving high‑quality solutions across heating, ventilation, air conditioning, and public health systems. As a senior member of the team, you will work collaboratively with internal departments, clients, and external design partners, delivering innovative, efficient, and sustainable design solutions that meet regulatory standards and exceed client expectations. What’s in It for You? * Competitive salary £52.5K–£62.5K + car allowance * 35 days annual leave, inclusive of bank holidays * Enhanced pension scheme * Contractual sick pay * Enhanced maternity & paternity pay (post qualifying period) * Cycle-to-work scheme * Access to an on-site gym Key Responsibilities * Lead and deliver mechanical services design packages, including calculations, schedules, surveys, and site inspections * Undertake full HVAC system design and optimisation * Produce high‑quality working drawings, schematics, and technical documentation * Identify commercial risks and ensure designs align ...