Senior Mechanical Building Services Design Engineer in Birmingham
Senior Mechanical Building Services Design Engineer

Senior Mechanical Building Services Design Engineer in Birmingham

Birmingham Full-Time 48000 - 72000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead innovative geothermal and mechanical system designs from concept to delivery.
  • Company: Dynamic consultancy in Birmingham focused on low-carbon energy solutions.
  • Benefits: Competitive salary, professional development, and a collaborative work environment.
  • Why this job: Make a real impact in sustainable engineering and mentor the next generation of engineers.
  • Qualifications: BEng/MEng in Mechanical Engineering with 10+ years in building services design.
  • Other info: Join a team that values innovation and offers excellent career growth opportunities.

The predicted salary is between 48000 - 72000 £ per year.

Overview Birmingham, United Kingdom | Posted on 02/06/2026

Responsibilities:

  • Lead delivery of geothermal and mechanical system designs across feasibility and concept design (RIBA Stages 1–2), scheme design, FEED, and detailed design (RIBA Stages 3–4), delivery, commissioning, and operational support.
  • Produce and review feasibility studies, technical reports, and specifications; concept designs, layouts, system options; detailed design documentation and calculations.
  • Develop and review designs for ground heat exchanger systems and geothermal layouts; plantroom layouts (2D and 3D); thermal, hydraulic, and systems models.
  • Size and select heat pumps, DACs, boilers, ACCs, CHPs, and ground loops; size pumps, valves, buffer vessels, DHW cylinders, PHEs, and ancillary equipment.
  • Develop and review general and particular mechanical specifications; control philosophies, control logic, and DESOPS; mechanical equipment schedules and electrical load schedules.
  • Size ground heat exchangers using industry-recognised software (e.g., GLD, EED).
  • Carry out and review heat loss and heat gain calculations (IES / Excel); energy performance and operational data analysis; create, maintain, and review engineering calculation spreadsheets.
  • Act as the lead technical interface with clients; manage and maintain strong client relationships.
  • Lead day-to-day project delivery within GED’s internal engineering team and the client’s engineers and external consultants.
  • Review and understand client specifications; Employer’s Requirements and Work Instructions; identify potential non-compliances and develop mitigation strategies; manage RFIs and technical clarifications; review, approve, and issue external meeting minutes and technical notes.
  • Support project management through scope definition, programme management, internal budget control, and variation orders; lead project handover activities.
  • Lead mechanical design coordination at RIBA Stages 1–2 with architects and electrical, structural, and BMS designers; support mechanical coordination at Stages 3–4 to ensure design intent is maintained; review and approve developed and detailed designs.
  • Attend and contribute to installation inspections and snagging; system troubleshooting and remedial strategy development; support remote monitoring and seasonal commissioning; review as-built documentation.
  • Mentor and support Intermediate and Junior Engineers; review calculations, drawings, and reports; provide structured technical feedback and contribute to GED’s design standards, calculation tools, engineering workflows and best practices.

Qualifications:

  • BEng / MEng / MSc in Mechanical Engineering, Building Services Engineering, or a related discipline.
  • Extensive depth of professional experience in mechanical building services, geothermal, or low-carbon energy system design.
  • Strong technical capability in geothermal and ground source heat pump systems; low-carbon heating and cooling systems; building heat loss and heat gain calculations; HVAC system design and equipment sizing (heat transfer, pipework and ductwork sizing, systems hydraulics and thermodynamics).
  • Very good understanding of heat pump operation, Rankine cycles, mechanical components, and control philosophy.
  • Strong working knowledge of standards and guidance (CIBSE, BSRIA, GSHPA/IGSHPA, HWA, relevant BS and EN standards).
  • Software and tools: AutoCAD; GLD / EED; Microsoft Office (Word, Excel, PowerPoint).
  • Strong technical writing and client presentation skills; ability to work in a small consultancy with high responsibility.
  • Right to work and live in the UK; Chartered Engineer (CEng) or working towards chartership; Certified GeoExchange Designer (CGD) or working towards certification.
  • Consultancy or client-facing experience; experience supporting projects through construction, commissioning, and operation; experience supervising or line-managing engineers.
  • 10+ years of experience in mechanical building services, geothermal, or heating + cooling / low-carbon energy system design.

Senior Mechanical Building Services Design Engineer in Birmingham employer: J&T Business Consulting

As a Senior Mechanical Building Services Design Engineer in Birmingham, you will join a forward-thinking company that prioritises innovation and sustainability in the building services sector. Our collaborative work culture fosters professional growth through mentorship and hands-on project involvement, while our commitment to low-carbon energy solutions positions us as leaders in the industry. Enjoy competitive benefits and the opportunity to make a meaningful impact on projects that contribute to a greener future.
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Contact Detail:

J&T Business Consulting Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Mechanical Building Services Design Engineer in Birmingham

✨Tip Number 1

Network like a pro! Get out there and connect with industry professionals on LinkedIn or at local events. We all know that sometimes it’s not just what you know, but who you know that can land you that dream job.

✨Tip Number 2

Prepare for interviews by practising common questions and showcasing your technical skills. We recommend doing mock interviews with friends or mentors to boost your confidence and get feedback on your answers.

✨Tip Number 3

Don’t forget to follow up after interviews! A quick thank-you email can go a long way in keeping you top of mind. We suggest mentioning something specific from the interview to show your genuine interest.

✨Tip Number 4

Apply through our website for the best chance at landing that role! We make it easy for you to showcase your skills and experience directly to the hiring team. Don’t miss out on opportunities!

We think you need these skills to ace Senior Mechanical Building Services Design Engineer in Birmingham

Geothermal System Design
Mechanical Engineering
Building Services Engineering
Heat Pump Sizing
HVAC System Design
Thermal Modelling
Energy Performance Analysis
Technical Report Writing
Client Relationship Management
Project Management
AutoCAD
Microsoft Office
CIBSE Standards Knowledge
Control Philosophy Development
Mentoring and Training

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Senior Mechanical Building Services Design Engineer role. Highlight your experience with geothermal systems and mechanical design, and don’t forget to mention any relevant software skills like AutoCAD or GLD/EED.

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re passionate about building services engineering and how your background makes you a perfect fit for our team. Be sure to mention specific projects or experiences that relate to the job description.

Show Off Your Technical Skills: We want to see your technical prowess! Include examples of your work with heat pumps, HVAC systems, and energy performance calculations. If you’ve led projects or mentored others, make sure to highlight those experiences too!

Apply Through Our Website: Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining the StudySmarter family!

How to prepare for a job interview at J&T Business Consulting

✨Know Your Stuff

Make sure you brush up on your technical knowledge, especially around geothermal systems and HVAC design. Be ready to discuss specific projects you've worked on and the software tools you’ve used, like AutoCAD or GLD/EED.

✨Showcase Your Problem-Solving Skills

Prepare examples of how you've tackled challenges in previous roles. Whether it’s managing client expectations or troubleshooting system designs, having concrete examples will demonstrate your capability and experience.

✨Understand the Company’s Values

Research the company’s approach to low-carbon energy solutions and their project delivery methods. Aligning your answers with their values will show that you’re not just a fit for the role, but also for the company culture.

✨Ask Insightful Questions

Prepare thoughtful questions about the team dynamics, project management processes, and future projects. This shows your genuine interest in the role and helps you assess if the company is the right fit for you.

Senior Mechanical Building Services Design Engineer in Birmingham
J&T Business Consulting
Location: Birmingham

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