ENGIE UK
Mechanical Engineer

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ENGIE
ENGIE is a global leader in low-carbon energy and services, committed to accelerating the transition towards a carbon-neutral world through reduced energy consumption and more environmentally friendly solutions. In the UK, ENGIE operates across a diverse portfolio of energy infrastructure and services, supporting businesses, communities and industries in their sustainability ambitions.
First Hydro Company, part of the ENGIE Group, owns and operates Dinorwig and Ffestiniog power stations in North Wales, which together provide some of the UK's most important pumped storage hydroelectric capacity. These unique facilities play a critical role in maintaining the stability and resilience of the national electricity network, offering candidates the opportunity to contribute to the future of renewable energy while working within a globally recognised and innovative energy organisation.
As Mechanical Engineer
You will play a key role in shaping and delivering the site's mechanical asset strategy, ensuring the safe, reliable and efficient operation of critical plant and equipment. Working closely with the Section Head, you will optimise asset performance, manage engineering risks and drive maintenance improvements that support both short and long-term business objectives. You will also provide expert technical support to the maintenance team, developing practical solutions to complex engineering challenges and helping maximise plant reliability, availability and value.
Summary Of What You Will Do
- Plan, develop, and deliver plant refurbishment, maintenance, and replacement projects within budget
- Manage contractors and organise resources to meet business plan targets and KPIs
- Assess, negotiate, and manage contracts, acting as Technical Officer with growing autonomy
- Provide expert technical advice and develop innovative solutions within your plant specialism
- Conduct residual life assessments and advise on risk management and plant integrity
- Investigate and resolve plant-level performance issues using modern inspection and maintenance techniques
- Support the Section Head in developing and reviewing the asset management and maintenance strategy
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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
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Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
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What You Will Bring To The Role
- A degree or equivalent qualification in mechanical engineering or a related discipline
- Proven experience in plant engineering, asset management, or industrial maintenance
- Strong project management skills, with the ability to handle multidisciplinary work
- Solid understanding of health, safety, environmental, and quality management requirements
- Experience managing contractors and working within defined budgets and timelines
- Analytical mindset with the ability to diagnose complex plant problems and propose solutions
- A collaborative approach and the ability to contribute effectively in cross-functional teams
Location
This is a fully on-site role based in Llanberis, North Wales.
What We Offer
- A stimulating and varied role across a wide range of plant engineering disciplines
- Real career development opportunities within a global energy leader
- A friendly, inclusive, and purpose-driven work environment
- Exposure to long-term strategic planning, including 5-year and 15-year investment programmes
- A culture that values work-life balance and supports your professional growth
- The chance to contribute directly to the decarbonisation of the energy system


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Our Commitment
At ENGIE, we are 98,000 transition makers worldwide, committed to carbon-neutral energy. Within the Renewables & Flex Power activities, we develop low-carbon and flexible solutions to address a major challenge: providing our customers with 100% decarbonized electricity, 24/7, by 2030. At ENGIE, every talent has a role to play in accelerating the energy transition. Make a difference and enjoy a fulfilling professional experience. Take on exciting challenges and build a career path that reflects who you are. Join us and be part of the adventure of the century.
ENGIE is an equal opportunity employer. We welcome applications from people of all backgrounds, identities, and experiences. We believe diversity strengthens our teams and drives better outcomes for our business and our planet.
If you require any reasonable adjustments during the recruitment process, please let us know. We are committed to ensuring every candidate has a fair and positive experience.
Business Unit: GBU Renewables & Flexible Power
Division: R&B Europe - Hydro UK
Legal Entity: FIRST HYDRO COMPANY
Company Name: ENGIE UK
Minimum Base Salary:
Maximum Base Salary:
Pay Basis: Annual
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