Client: My client is a growing building services consultancy with a team of around 20 people, delivering a good mix of commercial and residential projects. Their workload is split roughly 50/50 between client-side and contractor-led projects, giving engineers the chance to work across a varied portfolio and gain well-rounded experience. Despite their growth, they've kept a close-knit, supportive culture where everyone is approachable and there's plenty of opportunity to learn from experienced engineers and directors. They have a strong leadership team in place, regular monthly socials, and a genuine focus on helping people develop their careers. With the business continuing to grow, they're now looking to bring a Principal Mechanical Design Engineer into their London office. Role: Principal Mechanical Design Engineer - £65,000 - £75,000 + Benefits You'll be involved in the design and delivery of Mechanical building services projects from initial concept through to construction. Working alongside experienced engineers, you'll gain exposure to a broad range of commercial and residential schemes while developing your technical knowledge and taking on increasing responsibility as your experience grows. This is a great opportunity to join a consultancy that's growing rapidly, offers plenty of variety in its workload, and provides a supportive environment where your career progression is genuinely encouraged. Role & Responsibilities * Lead the design and delivery of Mechanical building services projects. * Produce detailed design and technical information packages in line with project programmes. * Develop practical and innovative engineering solutions tailored to client requirements. * Coordinate closely with architects, structural engineers, sustainability consultants, and wider design teams. * Attend client and project meetings as a representative of the business. * Utilise industry-standard software including CAD, Revit, and BIM platforms. * Carry out engineering calculations and performance assessments to support design decisions. * Support and mentor junior engineers where required. * Assist in the successful delivery of projects through all key design stages. The ideal candidate: · 5 years + experience as a Mechanical Design Engineer. · Ideally have a HNC or HND and good technical knowledge of Mechanical design services. · Experience working in the commercial sector · Have the right forward-thinking attitude In Return They Offer * A healthy and diverse pipeline of work across multiple sectors. * Exposure to innovative and sustainability-focused projects. * Genuine opportunities for career progression and professional development. * The chance to work on technically challenging and high-profile developments. * Flexible and hybrid working arrangements. * The opportunity to join a growing consultancy with an excellent reputation within the industry