Mechanical Design Engineer – HVAC & Building Services

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

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 (£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.