Go-Fix Mechanical & Drainage Services
Senior Mechanical Design Engineer

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Senior Mechanical Design Engineer
An established and rapidly growing Building Services contractor is seeking an experienced Senior Mechanical Design Engineer to join its in-house design team. This is an excellent opportunity for a technically strong engineer to play a key role in delivering high-profile commercial, healthcare, education, residential, industrial, and data centre projects from concept through to completion.
Working closely with project delivery teams, clients, consultants, and supply chain partners, you will lead the mechanical design process, provide technical expertise, and support the successful delivery of projects across the UK.
Responsibilities
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Lead the design and coordination of mechanical building services systems, including:
- HVAC
- Heating and cooling systems
- Ventilation systems
- Public health services (sanitary systems)
- Domestic water services
- Above and below-ground drainage
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Produce and review detailed mechanical designs, including:
- Calculations
- Specifications
- Schedules
- Technical reports
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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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.
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Develop designs from RIBA Stage 2 through to Stage 5 and construction
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Ensure designs comply with:
- Current legislation
- Regulations
- British Standards
- Industry best practice
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Carry out:
- Thermal modelling
- Pipe sizing
- Ductwork sizing
- Pressure loss calculations
- Equipment selection
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Coordinate designs with electrical, public health, structural, and architectural disciplines
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Attend client, consultant, and project meetings as the lead mechanical design representative
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Provide technical support to:
- Project managers
- Procurement teams
- Site-based delivery teams
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Review subcontractor and supplier technical submissions
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Mentor and support junior and intermediate engineers within the design team
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Identify value engineering opportunities while maintaining compliance and performance requirements
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Assist with tender submissions and technical bid support when required
Requirements
- Essential Qualifications:
- Degree or HNC/HND qualified in Mechanical Engineering or Building Services Engineering
- Minimum 5 years’ experience within Building Services Design


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Essential Experience:
- Proven experience delivering commercial and industrial MEP projects
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Technical Knowledge:
- Strong knowledge of HVAC and mechanical building services systems
- Excellent understanding of:
- Current Building Regulations
- CIBSE guidance
- British Standards
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Software Proficiency:
- Proficient in industry software such as:
- AutoCAD
- Revit MEP
- HevComp (Hevacomp)
- IES VE
- Cymap
- MagiCAD (desirable)
- Proficient in industry software such as:
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Soft Skills:
- Strong communication and stakeholder management skills
- Ability to manage multiple projects and deadlines simultaneously
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Licensing:
- Full UK Driving Licence
Benefits
- Competitive salary package
- Company car or car allowance
- Performance-related bonus scheme
- Pension contribution
- Ongoing training and professional development
- Opportunity to work on prestigious, technically challenging projects
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