OUTSOURCE CONSTRUCTION LTD
Mechanical Design Engineer

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Mechanical Design Engineer – Renewable Technologies & District Heating
Location: London
Sector: Renewable Energy / District Heating / Building Services
I’m looking to speak with Mechanical Design Engineers who have experience designing heat networks, energy centres and low-carbon heating systems.
The role involves developing mechanical designs from concept through to detailed design, working with the wider project team to deliver practical solutions for district heating and renewable energy projects across London.
What you’ll be doing
- Designing district heating networks, energy centres and associated mechanical systems.
- Developing heating solutions that may include heat pumps, LTHW systems and thermal storage.
- Producing design calculations, drawings, specifications and technical reports.
- Selecting and sizing plant, equipment and pipework.
- Coordinating mechanical designs with electrical, controls and civil disciplines.
- Reviewing technical submissions and responding to design queries during delivery.
- Supporting site teams through installation, testing and commissioning.
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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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.
What we’re looking for
- Experience in mechanical building services or energy system design.
- A background in district heating, heat networks or large-scale renewable heating projects.
- Good knowledge of LTHW systems, energy centres and plant room design.
- Confidence producing calculations and technical design documentation.
- The ability to work with clients, consultants and contractors to resolve design challenges.


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Experience with heat pumps, hydraulic modelling or low-carbon energy systems would be particularly useful.
If you’re a Mechanical Design Engineer with district heating experience, I’d be keen to hear from you. Please apply with your CV or contact Tom at Outsource Construction on tom@outsourceconstruction.co.uk for a confidential discussion.
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Jessica, London
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