Hays
Senior Mechanical Design Engineer

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Senior Mechanical Design Engineer (Building Services)
Location: Essex (Hybrid Working)
Salary: £60,000 - £70,000 + Benefits
About the Company
We are a growing, well-established building services consultancy based in Essex, known for our friendly, supportive, and close-knit team environment. As a smaller organisation, we pride ourselves on our "family feel" culture—where collaboration, trust, and mutual respect are at the heart of everything we do.
Due to continued growth and a strong project pipeline, we are now looking for a talented Senior Mechanical Design Engineer to join our team.
The Role
As a Senior Mechanical Design Engineer, you will play a key role in delivering high-quality mechanical building services designs across a variety of sectors, including commercial, residential, and mixed-use developments.
You will lead projects from concept through to completion, working closely with clients, architects, and internal stakeholders.
Key Responsibilities
- Lead the design and specification of mechanical building services systems (HVAC, public health, etc.)
- Manage projects from feasibility and concept design through to detailed design and handover
- Produce and review technical drawings, specifications, and calculations
- Attend client meetings and provide expert technical advice
- Mentor and support junior engineers within the team
- Coordinate with other disciplines (electrical, structural, architectural)
- Ensure compliance with relevant UK standards and regulations (CIBSE, Building Regulations, etc.)
- Contribute to innovative and sustainable design solutions
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
About You
- Degree qualified in Mechanical Engineering or Building Services Engineering (or equivalent)
- Minimum 5+ years' experience in a building services consultancy environment
- Strong knowledge of mechanical design standards and best practices
- Experience using industry software (e.g. Hevacomp, IES, Revit, AutoCAD)
- Ideally working towards or already Chartered (CIBSE/IMechE)
- Excellent communication and client-facing skills
- Ability to manage multiple projects and priorities effectively


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What We Offer
- Competitive salary of £60,000 - £70,000
- Hybrid working (flexibility between home and office)
- Friendly, supportive "family-feel" culture
- Clear career progression opportunities within a growing consultancy
- Exposure to a varied and interesting project portfolio
- Ongoing professional development and support towards chartership
- Flexible working environment that promotes work-life balance
Why Join Us?
This is a fantastic opportunity to join a small but ambitious consultancy where your voice is heard, your work is valued, and you can genuinely make an impact. You'll be part of a collaborative, down-to-earth team that supports each other and celebrates success together.
Hays EA is a trading division of Hays Specialist Recruitment Limited and acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found at hays.co.uk
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