Principal Mechanical Engineer Built Environment Consultancy Winchester Hybrid working £62,000 per annum benefits Due to continued growth, my client is seeking a Principal Mechanical Engineer to join their experienced MEP team in Winchester. This is an excellent opportunity for a senior building services professional to lead mechanical design on a diverse range of projects across the residential, healthcare, education, commercial, and regeneration sectors. The Role You will lead mechanical services design, manage project delivery, and work closely with clients and multi-disciplinary teams to deliver high-quality, sustainable solutions. The role includes technical leadership, project oversight, and mentoring junior engineers. Key Responsibilities Lead mechanical design and act as project engineer Manage and review the work of engineers and specialists Engage with clients and stakeholders to deliver project requirements Produce designs, calculations, reports, and specifications across RIBA stages Use CAD/BIM (ideally Revit) and design tools such as Hevacomp and IES Ensure compliance with regulations, QA standards, and health & safety requirements Advise on energy efficiency, sustainability, and carbon reduction Mentor and support junior engineers and apprentices About You Significant experience in mechanical/building services design Relevant degree or equivalent qualification (HNC/HND or higher) Chartered Engineer (CEng) Strong technical knowledge and attention to detail Excellent communication skills and a collaborative approach