Lead Mechanical Design Engineer (HVAC & Building Services)

NCC MECHANICAL SERVICES LIMITED; Chelmsford; Hybrid; GBP 45,000 - 60,000; Full time

Job summary

A well-established mechanical services company is seeking a Lead Mechanical Design Engineer to oversee HVAC system designs in Chelmsford. This hybrid role offers a competitive salary and benefits, including 28 days paid holiday and a pension scheme. Ideal candidates will have a degree in Building Services and proven experience in mechanical design, with a passion for sustainability and innovation.

Benefits

28 Days Paid Holiday

Company Pension Scheme

Company Workwear Provided

Free On-site Parking

Flexible Start/Finish Times

Qualifications

• Proven experience in mechanical design within the building services industry.
• Comfortable working across commercial, healthcare, and education projects.
• Strong knowledge of building regulations, CIBSE, and BREEAM standards.

Responsibilities

• Lead and deliver mechanical design for HVAC systems across various sectors.
• Create detailed calculations, drawings, schematics, and technical specifications.
• Collaborate with clients, architects, and project stakeholders to coordinate designs.

Skills

Mechanical Design

HVAC Systems

Sustainability

Communication

Collaboration

Education

Degree, HND, or HNC in Building Services

Tools

AutoCAD

MepWorxs

Job description

Lead Mechanical Design Engineer (HVAC & Building Services)

Lead Mechanical Design Engineer (HVAC & Building Services)

2 days ago Be among the first 25 applicants

NCC MECHANICAL SERVICES LIMITED provided pay range

This range is provided by NCC MECHANICAL SERVICES LIMITED. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from NCC MECHANICAL SERVICES LIMITED

Lead Mechanical Design Engineer (HVAC & Building Services)

Location: Chelmsford (Hybrid: 3 days office / 2 days WFH)

Salary: £45,000 – £60,000 (Dependent on qualifications and experience)

Contract: Full-time, Permanent

• 28 Days Paid Holiday (including bank holidays)
• Company Pension Scheme (Nest)
• Company Workwear Provided
• Free On-site Parking
• Permanent PAYE Position
• Flexible Start/Finish Times

About Us

We’re a well-established mechanical services company with over 30 years of experience in designing and installing HVAC, pipework, and plumbing systems across Essex and surrounding counties. Our client base includes major organisations such as the NHS, Co-op, and leading education trusts.

Our success is built on the strength of our team—from site engineers and project managers to designers and support staff—all working together to exceed client expectations. We are committed to continuous improvement and ongoing training, making our workplace a dynamic and forward-thinking environment.

The Opportunity

We are seeking a talented Senior Mechanical Design Engineer to lead our Mechanical Design Department and help shape the future of our projects. This hybrid role (minimum three days per week in our Chelmsford office) is ideal for someone looking to balance collaboration with autonomy.

Key Responsibilities

• Lead and deliver mechanical design for HVAC systems across various sectors.
• Create detailed calculations, drawings, schematics, and technical specifications.
• Conduct site surveys and provide on-site support when needed.
• Collaborate with clients, architects, and project stakeholders to coordinate designs.
• Ensure compliance with UK building regulations, CIBSE guidelines, and sustainability targets.
• Evaluate subcontractor and supplier designs to ensure alignment with project needs.
• Participate in internal design reviews and contribute to continuous technical improvement.

What We’re Looking For

• Degree, HND, or HNC in Building Services or equivalent
• Proven experience in mechanical design within the building services industry.
• Comfortable working across commercial, healthcare, and education projects.
• Proficiency in AutoCAD and relevant design tools (e.g., MepWorxs).
• Strong knowledge of building regs, CIBSE, and BREEAM standards.
• A proactive, collaborative, and enthusiastic team player.
• Passionate about sustainability and innovation in design.
• Excellent communication and stakeholder coordination skills.

Ready to Design the Future with Us?

If you’re driven, technically skilled, and looking for a role where your ideas and leadership can make a real impact, we’d love to hear from you.

Apply today and take the next step in your building services career.

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No agencies please.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Design

• Industries

  Design Services, Construction, and HVAC and Refrigeration Equipment Manufacturing

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