Lead Mechanical Design Engineer (HVAC & Building Services)

NCC Mechanical; Chelmsford; Hybrid; GBP 45,000 - 60,000; Full time

Job summary

A well-established mechanical services company seeks a Lead Mechanical Design Engineer to lead their Mechanical Design Department. This hybrid role involves delivering HVAC designs, collaborating with stakeholders, and ensuring compliance with industry standards. Join a supportive team focused on sustainability and innovation in design.

Benefits

28 Days Paid Holiday (including bank holidays)

Company Pension Scheme (Nest)

Company Workwear Provided

Childcare Vouchers

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.
• Conduct site surveys and provide on-site support when needed.

Skills

Mechanical design

Collaboration

Communication

Sustainability

Education

Degree, HND, or HNC in Building Services

Tools

AutoCAD

MepWorxs

Job description

Lead Mechanical Design Engineer (HVAC & Building Services)

Location: Chelmsford (Hybrid: 3 days office / 2 days WFH)
Salary: GBP45,000 - GBP60,000 (Dependent on qualifications and experience)
Contract: Full–time, Permanent

Benefits:

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

About Us

We are 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.

What We Offer

• A supportive and inclusive working culture that values your input and ideas.
• Opportunities for professional development and exposure to the full project lifecycle.
• Direct involvement in project dialogue, client engagement, and site visits.
• Flexible working arrangements to support your work–life balance.

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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