Principle Mechanical Design Engineer

Job Title: Principal Mechanical Engineer - Building Services
Location: Norwich, UK
Salary: Up to £75,000 per annum
Contract Type: Permanent, Full-TimeWorking
Pattern: Hybrid (with potential for one day per week in the office)
Sector: MOD, MOJ, Residential, Commercial, Educational
Role OverviewWe are seeking an experienced and forward-thinking Principal Mechanical Engineer to join our building services team in Norwich. This senior role offers the opportunity to lead mechanical design across a diverse portfolio of projects, including MOD, MOJ, residential, commercial, and educational sectors.You'll play a key role in shaping technical delivery, mentoring junior engineers, and driving sustainable, low-carbon design solutions. With flexible working and the option to be in the office just one day a week, this position offers both autonomy and impact.
Key Responsibilities

• Lead mechanical design and specification of HVAC, public health, and energy systems
• Deliver projects from concept through to completion, ensuring compliance with UK regulations and client requirements
• Coordinate with multidisciplinary teams including electrical, architectural, and structural consultants
• Provide technical leadership and mentorship to junior engineers and technicians
• Attend client meetings, design reviews, and site inspections
• Contribute to fee proposals, resource planning, and project programming
• Ensure designs are delivered on time, within budget, and to a high technical standard
• Support the development of low-carbon and energy-efficient mechanical strategies
• Maintain strong relationships with clients, contractors, and stakeholders

Candidate Profile

• Degree in Mechanical Engineering or Building Services Engineering (or equivalent)
• Chartered Engineer status (or working toward) with a relevant institution (e.g., CIBSE, IMechE)
• Minimum 8 years' experience in mechanical building services design
• Proven experience delivering projects in MOD, MOJ, residential, commercial, and educational sectors
• Strong knowledge of UK building regulations, BS standards, and design codes
• Proficient in design software such as AutoCAD, Revit, Hevacomp, IES, and Microsoft Office
• Excellent communication, leadership, and client-facing skills
• Eligible for UK security clearance (MOD/MOJ requirement)

Benefits

• Competitive salary up to £75,000 per annum
• Flexible working with potential for one day per week in the office
• Pension scheme and annual leave package
• Professional development and chartership support
• Collaborative team culture and meaningful project work

What you need to do now

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