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Energy Engineer

Hollis
London
Title: Energy Engineer

Location: London

Salary: Competitive + benefits

Want to join a leading international, independent real estate consultancy with an all together different approach?

Due to exponential growth and developing a new service line, we are currently looking for an Energy Engineer to join our Operational Engineering team and work hand in hand with our FM Consultancy engineers. You will be based in our newly fitted out London office opposite St Paul's, to cover a variety of exciting engineering consultancy across a variety of building sectors.

We have just launched our updated Building Optimisation service to integrate with our bespoke client portal and we are seeking an experienced and driven Engineer to support the roll out to our clients. The role will include pitching the service to clients, delivering energy saving results and then maintaining the client relationships to cross-sell further work.

The goal of our building optimisation projects is to improve energy efficiency, reduce carbon emissions, and support clients in achieving sustainability targets. This role requires a blend of technical expertise, strong analytical skills, and client-facing communication to deliver measurable improvements across sectors such as commercial, industrial, high-end residential and retail/leisure.

As part of Hollis' Operational Engineering team, you will get valuable exposure to all aspects of MEP Consultancy and in particular you may have some FM Consultancy skills so that you can provide a joined up service to clients. You can work on unique projects and alongside some of our most forward-thinking minds. If you're not chartered through a professional body already, Hollis is CIBSE accredited and can offer extensive experience assisting engineers through their chartership and membership routes and will ensure you're able to achieve your career aspirations.

You will have the opportunity to take ownership of this exciting role and act as a key player to support the continued growth of this new service line. You can expect consistent support to advance your career and will be entrusted to help shape our junior engineers for the future.

Responsibilities
  • Support the roll out of Building Optimisation.
  • Conduct in-depth energy audits and building performance assessments (HVAC, lighting, controls, BMS, etc.).
  • Analyse building data to identify energy-saving opportunities, performance inefficiencies, and optimisation strategies.
  • Develop and implement energy conservation measures (ECMs), using modelling tools and real-time data.
  • Advise clients on retrofit opportunities, low-carbon technologies, and control strategies to improve building performance.
  • Support the commissioning, re-commissioning, and tuning of building systems to ensure optimal operation.
  • Collaborate with internal teams (e.g., our in-house ESG and Building Physics teams) and external stakeholders (e.g., asset and property managers).
  • Create clear, actionable technical reports, business cases, and client presentations.
  • Ensure compliance with relevant standards (e.g., CRREM, CIBSE, GREEB, etc.) and support ESG reporting.
  • Monitor post-implementation results to verify performance improvements and ROI.
  • Help manage and deliver maintenance led projects
Extended responsibilities:
  • Producing pre-acquisition and disposal technical due diligence reports
  • Carrying out planned preventative maintenance CAPEX reports
  • Management of projects and acting as project lead
  • Support internal M&E team with the delivery of maintenance led projects and our FM Consultancy team to ensure client satisfaction through high quality execution of planned/reactive maintenance work
  • Input into innovation; continual improvement of services and products
  • Supporting the wider teams providing technical support and maintenance management duties
  • Meet target KPIs on WIP management including HIW
  • Business Development and Client Care awareness, cross-selling of Hollis' services and effectively managing relationships
  • Opportunity to manage and mentor graduates and junior engineers
Your Profile Experience
  • Relevant engineering degree, inclusive of building services modules or equivalent education/practical experience
  • Relevant experience in building optimisation, energy consulting, or building performance engineering.
  • In-depth knowledge of HVAC systems, BMS operations/Control, building physics, and low-carbon technologies.
  • Familiarity with industry standards and guidelines (e.g., CIBSE, CREEM, GREEB).
  • Understanding of UK & Ireland building regulations and Net Zero/ESG goals.
  • Excellent report writing and communication skills are required and the ability to liaise professionally with clients and colleagues is essential
  • Client facing with excellent written and verbal communication skills
  • Proficient in MS Office packages
  • Knowledge of MS Projects, IES, MBS advantageous
  • Understanding of JCT contracts, additionally beneficial to understand NEC, Bluebeam and Auto CAD
Why join us?

We are hardworking, progressive, successful and fun. We're independently-owned and independently-minded, not afraid to give honest advice or to be ourselves. We aim to achieve the right balance for you, delivering excellent client service whilst supporting you in fulfilling your potential and achieving your goals.

We offer a highly attractive salary and a generous benefits package including:
  • Life assurance and private medical insurance
  • Season ticket loan
  • 5% Employer pension contribution
  • 25 days of holiday and an extra day off on your birthday
  • Cycle to work scheme, retail vouchers, gym discounts and more
  • EV car scheme
  • Longevity awards
Hollis operates a hybrid-working policy giving employees the opportunity to work between their home and our offices, where their job allows it. In addition, employees are encouraged to request flexible working hours when needed and we work hard to accommodate where we can.

We are a sociable bunch and host pay day drinks, quarterly lunches, quiz nights and cultural and sporting activities to socialise and have fun with your colleagues. We also give back and take part in numerous charity events all over the country throughout the year.

We're Inclusive

Together we welcome, we embrace, and we celebrate our differences. Our aim is to provide a diverse and inclusive workplace which supports and cares for all our employees, including those from underrepresented or non-dominant groups. We're focused on a culture of inclusion; where all barriers including prejudice are removed from our working environment; and where all our people are empowered to be the best they can be.

Don't meet every single requirement? If you would like the opportunity to join Hollis but your past experience is not an exact match, we encourage you to apply anyway as you could be the right candidate for this role or another role within the company.

If you require alternative formats of our documents or need to apply offline, please get in touch with the talent acquisition team: [email protected] or call us on 020 7622 9555.

Department Engineering Role Senior Engineer Locations London City Remote status Hybrid Employment type Full-time
Posted 2025-09-11

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