Mechanical Services Design Engineer
Location: Guernsey
Overview:
Are you a skilled Mechanical Engineer ready to take ownership of exciting building services projects? Join our clients Design Consultancy and play a key role in shaping safe, efficient, and high-performing built environments across a diverse project portfolio.
This is more than just a design role—you’ll be trusted to lead, innovate, and collaborate. With support from experienced mentors, you’ll deliver high-quality mechanical engineering solutions while developing your leadership capability, including opportunities to step into a Build Team Leader role.
If you’re looking for a role that combines technical challenge, career progression, and real project impact, this could be the perfect next step.
Duties & Responsibilities:
You’ll be at the heart of project delivery, taking designs from concept through to completion:
Produce detailed mechanical designs including calculations, specifications, and technical reports aligned with industry standards (British Standards, CIBSE, CiPHE).
Create 2D and 3D designs using industry-leading tools, including CAD and BIM (AutoCAD, Revit).
Design and coordinate key building systems such as:
Heating, ventilation, and air conditioning (HVAC)
Hot and cold-water services
Above-ground drainage
Air source and ground source heat pumps (ASHP/GSHP)
Building Management Systems (BMS)
Lead project elements—agreeing scope, deliverables, and timelines with your Line Manager.
Support and guide trainee and graduate engineers, helping deliver projects on time and within budget.
Conduct site visits including surveys, inspections, and progress reviews, producing clear and professional reports.
Prepare cost estimates, tender documentation, and review contractor submissions and variations.
Ensure all work complies with Health & Safety legislation, company QA processes, and industry best practice.
Collaborate closely with multidisciplinary teams to deliver fully coordinated designs.
Stay ahead of the curve by keeping up with new technologies and maintaining continuous professional development (CPD).
What We’re Looking For:
We’re looking for someone who combines technical expertise with a proactive, team-focused mindset:
Proven experience delivering mechanical building services projects from concept through to completion.
Strong project management skills with the ability to prioritise and meet deadlines.
Confident communicator with excellent written and verbal skills.
A collaborative team player who builds strong working relationships.
Proactive, flexible, and solutions-focused approach.
Proficiency (or willingness to develop) in tools such as AutoCAD, Revit (BIM), IES, Dialux, SketchUp, and Microsoft Office.
Full, clean driving licence.
Qualifications Required?
Degree (2:1 or above) in Building Services Engineering or a related discipline.
NVQ Level 3 in Plumbing & Domestic Heating (City & Guilds).
NVQ Level 3 in HVAC, Refrigeration & Air Conditioning (City & Guilds).
Why Join our client team?
Work on a wide variety of technically challenging and rewarding projects.
Gain hands-on experience with industry-leading tools and technologies.
Benefit from mentorship and a clearly defined career progression pathway.
Be part of a supportive, collaborative team where your contribution truly matters.
Opportunity to grow into leadership roles and shape project outcomes.
Your CV will be forwarded to Jonathan Lee Recruitment, a leading engineering and manufacturing recruitment consultancy established in 1978. The services advertised by Jonathan Lee Recruitment are those of an Employment Agency.
In order for your CV to be processed effectively, please ensure your name, email address, phone number and location (post code OR town OR county, as a minimum) are included