Senior Mechanical Design Engineer

RGB Recruitment; England; Hybrid; GBP 45,000 - 60,000; Full time

Job summary

A leading building services consultancy in the UK seeks an experienced Senior Mechanical Design Engineer. You will lead the design of innovative mechanical services, mentor engineers, and ensure compliance with regulations. The role offers a competitive salary, hybrid working, and clear career progression in a collaborative environment.

Benefits

Competitive salary

Bonus and benefits package

Support towards chartership

Flexible working model

Qualifications

• 5+ years of consultancy-based experience in mechanical building services design.
• Strong technical knowledge of HVAC and building services systems.
• Proven track record in managing complex projects.

Responsibilities

• Take ownership of the mechanical design process for building services.
• Produce and review design calculations and technical specifications.
• Mentor junior and intermediate engineers.

Skills

Mechanical Engineering

HVAC knowledge

Leadership

Communication

Project management

Education

Degree in Mechanical Engineering or Building Services Engineering

Chartered Engineer (working towards)

Tools

Hevacomp

IES

Revit

AutoCAD

Job description

The Opportunity

We're representing a forward-thinking building services consultancy in Fareham that is looking for an experienced Senior Mechanical Design Engineer. This is a key role, leading the design and delivery of innovative, sustainable mechanical services across commercial, residential, education, and healthcare projects. You'll play a pivotal part in shaping design solutions, mentoring engineers, and working closely with clients and multidisciplinary teams to deliver projects from concept through to completion.

What You'll Do

• Take ownership of the mechanical design process for building services (HVAC, heating, cooling, ventilation, domestic water systems).
• Produce and review design calculations, technical specifications, drawings, and reports.
• Coordinate effectively with clients, project teams, and other engineering disciplines.
• Mentor junior and intermediate engineers, fostering technical growth and best practices.
• Ensure all designs meet UK building regulations, CIBSE guidance, and sustainability standards.
• Actively contribute to client meetings, workshops, and design reviews.
• Support business development and help drive continuous improvement across the consultancy.

What We're Looking For

• Degree in Mechanical Engineering or Building Services Engineering (BEng, MEng, or equivalent).
• Chartered Engineer (CEng) or working towards chartership (IMechE, CIBSE, or similar).
• At least 5+ years of consultancy-based experience in mechanical building services design.
• Strong technical knowledge of HVAC and building services systems.
• Proficiency with design software such as Hevacomp, IES, Revit, and AutoCAD.
• Excellent leadership, communication, and project management skills.
• Proven track record in managing complex projects and guiding design teams.

What’s on Offer

• Competitive salary with bonus and benefits package.
• Hybrid working model promoting flexibility and work-life balance.
• Clear career progression and support towards chartership.
• Exposure to varied and high-profile projects across multiple sectors.
• A collaborative, supportive, and innovative work environment.

Next Step

If you're ready to take the lead on mechanical design projects and want to grow with a respected consultancy, we'd love to hear from you. Apply now to start a confidential conversation.