Centrica • United Kingdom

Senior / Lead Mechanical Engineer (Energy Solutions)

Employment type:  Full time


A little flex time

Apply now

Job Description

We are Centrica! We’re so much more than an energy company. We’re a family of brands revolutionising a cleaner, greener future. Working here is #MoreThanACareer - we’re powered by purpose. Together we can make an impact that will truly change tomorrow. Whether you’re developing cutting-edge green tech, helping customers on the front line or simplifying operations behind the scenes.

Your work here isn’t just a job – it’s a mission. We all play a vital role in energising a greener, fairer future.

Senior / Lead Mechanical Engineer (Energy Solutions)

Manchester / Stockport with FlexFirst hybrid working


Centrica Business Solutions (CBS) build, operate, and maintain clean energy assets to help customers decarbonise. This includes sourcing green energy to providing the project expertise, financing options, and industry leading operational capabilities to deliver energy efficiency and save our customers money so they can balance the demands of planet and profit.

In this role you will contribute to the delivery of sustainable, zero carbon, innovative and high-quality design solutions for mechanical building services systems. To succeed in this role, you must be confident facing clients and have working knowledge of the delivery of mechanical building services installations.

Whilst the role is flexible with regard to location and home working, it will involve UK site visits, also, the team office base is in Stockport, attendance there for meetings once or twice a month will also be required.

The Role

Your key responsibilities, but not limited to:

  • Producing mechanical documents (equipment specifications, schedules, reports)
  • Pipework sizing calculations * (for LTHW, CHW, HWS, CWS, Steam, Gas, Flue, Compressed Air, Lube Oil, etc)
  • Ductwork sizing calculation
  • Equipment sizing *(pumps, PHEs, boilers, CHPs, heat pumps, thermal stores, buffer tanks, calorifiers, fans, AHUs, chillers, etc.)
  • Control valve sizing and authority
  • Heat gain/loss calculations
  • Heating/cooling loads and respective profiles
  • Functional Design Specifications
  • Participating and contributing to HAZOP and LOPA discussions/meetings
  • DSEAR assessment
  • PED calculations and documentation

The Person

We believe that learning never stops and understand the need for continued personal and professional development. Centrica will support your development requirements so that you grow with the company.

For this role, ideally, your starting point is:

  • To have a CIBSE / IET / IMechE Engineering Council accredited honours degree. Alternatively, an HNC in an applicable discipline with commitment to continue with higher education and to have achieved or be working towards IEng or CEng status
  • Being forward thinking and passionate about design innovation
  • Preferably, you will have experience across different sectors such as Building Services Design, site surveys & inspections, snagging, client & design team meetings

Personal qualities that will help you succeed in this role include:

  • Excellent communication, with the ability to explain engineering solutions
  • Demonstrate good attention to detail and show pride in the work you produce
  • You can work using your own initiative with minimal supervision in the majority of technical aspects of your discipline


At Centrica we embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. To build a more sustainable future, we need the best team – a team with a diverse mix of people and skills, where everyone feels welcome and able to succeed. We are dedicated in helping to close the diversity gap and would love to see more females, people of colour and LGBTQ+ employees, as well as those from a variety of cultures and ethnicity to veterans and the differently abled. Supporting diversity and inclusion is a big part of who we are, we are not looking for people to fit into our culture but to add to it!

PLEASE APPLY ONLINE by hitting the 'Apply' button.

Company benefits

Adoption leave
Open to part-time employees
Enhanced sick days
Flexible working week
Enhanced sick pay
Gym membership
Health insurance
Mental health platform access
Compassionate leave
Dental coverage
Fertility treatment leave
Season ticket loan
Buy or sell annual leave
Optional unpaid leave
Shared parental leave
Enhanced maternity leave
Carer’s leave
Enhanced paternity leave
Pregnancy loss leave
Cycle to work scheme
Pension match/increase
Equity packages
Life insurance
Annual pay rises
Share options
Financial coaching
Employee discounts
Volunteer days
Company car
Employees are very happy with their working location freedom
Employees are very happy with the flexibility in the hours they work
Employees are very happy with the benefits their company offers
Work-life balance
Employees feel that they can switch off quite easily from work
Role modelling
Employees feel that flexible working is part of the culture
Employees feel they have complete autonomy over getting their work done

Additional employee ratings
(these do not contribute to the FlexScore®)

Employees feel that the diversity is good and there are continued efforts to improve it
Employees feel like the company culture is brilliantly inclusive and equitable
Employees feel like it is a really great environment to work in
Employees feel very excited about and aligned with the company mission
Employees feel that their salary is good and matches the value they bring

Working at Centrica

Company employees


Gender diversity (male:female)


Office locations

Windsor, London, Cardiff, Leicester, Glasgow, Edinburgh, Manchester, Dublin, Stockport, Staines, Hampton, Aberdeen, Barrow, Hull

Hiring Countries

United Kingdom

Awards & Achievements

2nd – Large companies

2nd – Large companies

Flexa100 2024
3rd – Consumer Goods

3rd – Consumer Goods

Industry awards 2023

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