Astute’s Power team is partnering with a leading facilities management company to recruit a Lead Mechanical Design Engineer for its Decarbonisation and Energy division.
The Lead Mechanical Design Engineer role comes with a starting salary of up to £90,000 + car allowance + benefits package.
If you’re a degree qualified Mechanical Design Engineer with experience working on decarbonisation projects and are looking for work then submit your CV to apply today.
Responsibilities and duties of the Lead Mechanical Design Engineer role

Reporting to the Engineering and Design Director you will:

• Lead mechanical design and engineering efforts across RIBA Stages 2-4, and provide technical oversight through project delivery phases (RIBA 5-7).
• Design and integrate low-carbon mechanical systems such as heat pumps, HVAC, BMS, and district heating solutions.
• Ensure regulatory and standards compliance, including CIBSE, PAS 2035, MCS, and UK Building Regulations.
• Lead BIM and CAD coordination to ensure effective integration with multidisciplinary teams.
• Develop and refine energy performance modelling tools for mechanical systems analysis and optimisation.
• Coordinate and manage multidisciplinary design integration, ensuring design continuity across mechanical, electrical, and energy systems.
• Mentor and develop a high-performing team of mechanical design engineers, encouraging continuous professional growth.
• Oversee funding application support (e.g. PSDS, GHNF, HNES), including technical input and compliance documentation.
• Support strategic procurement and supplier engagement, ensuring optimal mechanical solutions are selected for cost-efficiency and performance.
• Lead decarbonisation strategies and retrofit designs, aligning with clients’ sustainability goals and funding requirements.

Professional qualifications

We are looking for someone with the following:

• A degree in Mechanical or Building Services Engineering (MEng/BEng or equivalent), providing a strong technical foundation.
• Chartered Engineer (CEng) status with CIBSE or IMechE (preferred), demonstrating professional recognition and expertise.
• At least 10 years of experience leading mechanical design and delivering retrofit and decarbonisation projects across various sectors.
• In-depth technical knowledge of HVAC systems, heat pumps, district energy systems, and low-carbon technologies, especially within retrofit environments.
• Proficiency in energy modelling and design software, such as IES, Energy Pro, PVsol, Bluebeam, and BIM/CAD platforms.
• A thorough understanding of UK industry standards and regulations, including CIBSE guidelines, PAS 2035, MCS certification, and relevant building regulations.
• Proven leadership and mentoring abilities, with experience managing design teams and coordinating across multidisciplinary functions.

PERSONAL SKILLS

The Lead Mechanical Design Engineer role would suit someone who is:

• Strategic Thinker - able to align project goals with policy, funding, and long-term decarbonisation roadmaps.
• Collaborative Leader - skilled in engaging cross-functional teams and empowering colleagues toward shared outcomes.
• Change-Oriented - drives innovation and continuous improvement within energy transition frameworks.

SALARY AND BENEFITS OF THE LEAD MECHANICAL DESIGN ENGINEER ROLE

• Starting salary of £80,000 - £90,000
• Car allowance of £6,100, bonus of up to 10% and private medical insuranceOpportunity to work for a leading FM company

The Lead Mechanical Design Engineer role would suit someone who is:

• Strategic Thinker - able to align project goals with policy, funding, and long-term decarbonisation roadmaps.
• Collaborative Leader - skilled in engaging cross-functional teams and empowering colleagues toward shared outcomes.
• Change-Oriented - drives innovation and continuous improvement within energy transition frameworks