Mechanical Design Engineer – HVAC & Building Services
Chelmsford, United Kingdom | Posted on 10/30/2025
Salary: £45,000 – £65,000 per annum (depending on experience)
Job Type: Full-time, Permanent
About the Role
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.
Key Responsibilities
* 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.
Experience & Qualifications
* 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 MepWorx.
* 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.
What’s on Offer
* Competitive salary package based on experience (£45,000 – £65,000).
* Opportunity to work on diverse and technically challenging projects.
* Supportive environment that encourages professional growth and ongoing training.
* Collaborative and forward-thinking team culture.
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