Mechanical Design Engineer – HVAC & Building Services

Job Description :
Mechanical Design Engineer HVAC & Building Services

Location :
Chelmsford CM2 5LB

Salary : per annum (depending on experience)

Job Type :
Full-time Permanent

An exciting opportunity has arisen for an experienced Mechanical Building Services Design Engineer to join a long-established and respected mechanical services firm. The company specialises in the design and installation of HVAC and plumbing systems for a diverse range of projects across Essex and surrounding counties including commercial, healthcare and education sectors.

This role is ideal for a motivated engineer who enjoys working collaboratively in a dynamic and technically driven environment delivering innovative mechanical design solutions from concept to completion.

• Lead and contribute to the design and delivery of mechanical and HVAC systems for various projects.
• Prepare detailed design calculations, drawings, schematics and technical specifications.
• Conduct site surveys and provide on-site technical support when required.
• Collaborate with clients, architects, contractors and project stakeholders to ensure coordinated and efficient designs.
• Ensure all designs comply with UK Building Regulations, CIBSE guidelines and meet sustainability and BREEAM standards.
• Review and evaluate designs from suppliers and subcontractors to ensure quality and compliance.
• Participate in internal design reviews contributing to continuous improvement and innovation within the design team.

• Degree, HND or HNC in Building Services Engineering, Mechanical Engineering or equivalent qualification.
• Proven experience in mechanical design within the building services industry.
• Experience working across commercial, healthcare and educational environments.
• Proficient in AutoCAD and relevant design software such as Mep Worx.
• Solid understanding of CIBSE, BREEAM and Building Regulations.
• Excellent communication, teamwork and client‑facing skills.
• Proactive, detail‑oriented and committed to delivering high‑quality engineering solutions.

• Competitive salary package based on experience.
• work on diverse and technically challenging projects.
• Supportive environment that encourages professional growth and ongoing training.
• Collaborative and forward‑thinking team culture.