Centrica
Senior Mechanical Engineer
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Join us, be part of more. We’re so much more than an energy company. We’re a family of brands revolutionising how we power the planet. We're energisers. One team of 21,000 colleagues that's energising a greener, fairer future by creating an energy system that doesn’t rely on fossil fuels, whilst living our powerful commitment to igniting positive change in our communities. Here, you can find more purpose, more passion, and more potential. That’s why working here is #MoreThanACareer. We do energy differently - we do it all. We make it, store it, move it, sell it, and mend it.
About your team
At Centrica Business Solutions, we’re proud to partner with over 7,000 organisations globally – helping them to balance planet, with profit. We build, operate and maintain onsite, large-scale energy assets like Solar PV and Combined Heat and Power – to help businesses to save the planet and save money. We’re also transforming the UK’s energy landscape by partnering with landowners and developers to build a 900MW portfolio of new grid-scale solar farms and battery storage assets.
🚀 Senior Mechanical Engineer
📍 Location: Salford | Hybrid working
🕒 Full-Time – Permanent
🚗 Company car/car allowance provided
We work in a hybrid, Flexible First way—typically spending 1/2 days a week in our Salford office plus at least a day per week visiting clients in the UK or Ireland.
🔍 The Team
Centrica Business Solutions (CBS) designs, builds, operates, and maintains clean energy assets that enable customers to decarbonise their operations. Our end-to-end offering includes the supply of green energy, project delivery expertise, financing solutions, and industry-leading operational capabilities. Together, we help customers improve energy efficiency, reduce carbon emissions, and balance commercial performance with sustainability goals.
🔍 The Job
This is an exciting opportunity to play a leading role in the delivery of low-carbon mechanical building services solutions. You will contribute to the development of sustainable, zero-carbon, innovative, and high-quality mechanical designs, supporting our customers’ transition to cleaner energy systems.
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The successful candidate will be confident working directly with clients and possess a strong track record in the design and delivery of mechanical building services installations. You will be responsible for both the detailed design and the successful integration of low-carbon technologies, as well as providing technical oversight during installation.
💼 Key Responsibilities
- Produce high-quality mechanical engineering documentation, including specifications, schedules, and technical reports
- Carry out pipework sizing calculations for systems including LTHW, CHW, HWS, CWS, steam, gas, flues, compressed air, and specialist systems
- Perform ductwork sizing calculations
- Size mechanical plant and equipment, including pumps, plate heat exchangers, boilers, CHP units, heat pumps, thermal stores, buffer vessels, calorifiers, fans, AHUs, and chillers
- Undertake heat gain and heat loss calculations
- Develop heating and cooling load profiles
- Carry out thermal modelling and system performance analysis
- Produce BMS system descriptions and control strategies
- Participate in HAZOP and LOPA studies
- Conduct DSEAR assessments
- Complete PED calculations and prepare associated compliance documentation
🔍 The Person
You will be an experienced mechanical designer, currently working within building services design or a closely related discipline. You will hold a degree in Mechanical Engineering, Building Services Engineering, or a relevant equivalent qualification.
You will be a confident and effective communicator, capable of working both independently and collaboratively within multidisciplinary teams. You will demonstrate a proactive and innovative mindset, with a continuous focus on improving design quality, safety, and delivery outcomes. A professional, safety-first approach is essential, along with pride in delivering work to a high standard through to completion.
Qualifications & Experience
- An Engineering Council – accredited honours degree (CIBSE, IET, or IMechE), or an HNC in a relevant discipline with a commitment to further professional development
- Working towards, or already achieved, IEng or CEng professional registration
- A forward-thinking approach with a passion for design innovation
- Experience across a range of engineering activities, ideally including:
- Site surveys and inspections
- Solution development
- Building services design
- Client and design team meetings
- Snagging and commissioning of systems
- Problem diagnosis and solutioning
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Personal Qualities
- Confident and professional when representing Centrica in client-facing environments
- Strong communication skills, with the ability to clearly explain complex engineering solutions
- High attention to detail and a commitment to delivering high-quality work
- Able to inspire confidence and build effective working relationships with colleagues and clients
- Comfortable working autonomously, using initiative to manage technical responsibilities with minimal supervision
💬 And remember: If you don’t meet all the requirements but feel excited about this role, we still encourage you to apply. We’re building a diverse, talented team where different perspectives spark better ideas.
Why should you apply?
We’re not a perfect place – but we’re a people place. Our priority is supporting all of the different realities our people face. Life is about so much more than work. We get it. That’s why we’ve designed our total rewards to give you the flexibility to choose what you need, when you need it, making sure that you and your family are supported not only financially, but physically and emotionally too. Visit the link below to discover why we’re a great place to work and what being part of more means for you. http://www.morethanacareer.energy/cbs
If you're full of energy, fired up about sustainability, and ready to craft not only a better tomorrow, but a better you, then come and find your purpose in a team where your voice matters, your growth is non-negotiable, and your ambitions are our priority.
Help us, help you. We would love for you to share any information about yourself throughout our recruitment process so that we can better understand you and help shape your journey.
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