Senior Design Engineer; Building Services

Senior Design Engineer (Building Services) (JOB-3054) Crawley, England

Salary: £50,000 - £60,000 per annum + Bonus + Benefits

Employment type:

Permanent, full-time

Location:

London Region (Hybrid/Remote working with approx. 1 day in the Croydon office)

Hours:

Monday to Friday, 40 hours per week

We are currently working with a fast‑growing renewable energy business who are seeking a Senior Design Engineer to join their expanding team. This is an exciting opportunity to play a key role within a highly ambitious organisation delivering high‑specification renewable energy and MEP projects across the South East.

The business works across a broad range of technologies including ASHP, GSHP, Solar PV, Battery Storage, MVHR, and Air Conditioning systems for both residential and commercial projects.

This role offers a high degree of flexibility, with office attendance typically required on 1 day per week, alongside site visits when required.

This role would suit a high‑potential Design Engineer who is keen to learn and step into a leadership role in the near future.

Leading and managing the technical design function across renewable energy and MEP projects.

Taking ownership of designs post‑handover from the sales team through to project delivery.

Producing detailed Stage 4 and Stage 5 technical designs for renewable energy systems including heat pumps, solar PV, MVHR, battery storage, and full M&E solutions.

Managing client interactions throughout the design lifecycle, including architects, consultants, and contractors.

Carrying out heat loss/gain calculations and room‑by‑room analysis for accurate system sizing.

Producing technical schematics, specifications, and design documentation.

Acting as the key technical support point for installation teams and site supervisors, resolving technical queries and ensuring designs are practical and installable.

Managing design workflows, prioritising projects, and ensuring SLAs and deadlines are achieved.

Supporting the implementation and continuous improvement of BIM processes and design procedures.

Working closely with senior leadership to improve design operations and project delivery.

Previous design experience within Building Services, MEP, HVAC, or renewable energy sectors.

Experience designing mechanical and/or electrical systems for residential or commercial projects.

Renewable energy experience would be advantageous, although not essential.

Strong understanding of design software such as AutoCAD, Revit, IES, EasyPV, or similar.

Knowledge of BIM processes and RIBA design stages would be beneficial.

Ability to produce detailed technical drawings, schematics, and calculations.

• Strong communication skills with the ability to work collaboratively with clients, sales teams, and installation engineers.
• Excellent problem‑solving skills and attention to detail.

If you are a technically strong Design Engineer or Design Manager looking to join an innovative and rapidly growing company within the renewable energy sector, apply today to be considered for this exciting opportunity.