Mechanical Design Engineer

Bouygues Energies & Services Industry, an Equans Group Company, is recruiting a Mechanical Design Engineer with a Building Services background for a dynamic, project‑based role.

The Mechanical Design Engineer will be an integral member of our design team, supporting technical delivery across bid, design, installation and commissioning phases. The role focuses on the design and technical support services to data centres, clean rooms, pharmaceutical and other mission‑critical projects.

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• Design, plan and coordinate mechanical services projects.
  
• Participate in regular design meetings with project teams, ensuring clear communication and effective management of design changes.
  
• Contribute to technical strategy development during bid and pre‑construction phase of projects.
  
• Provide engineering support to site teams, offering specialist design input to proactively resolve problems and support installation works to meet programme requirements.
  
• Be involved in successful project delivery as part of the team, with high‑quality design deliverables completed on time and to budget.
  
• Maintain thorough technical audit trails documenting design reviews and approvals by all stakeholders.
  
• Resolve installation and commissioning challenges efficiently.
  
• Deliver designs in line with health and safety requirements.
  

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• Competitive salary and benefits package, including 25 days annual leave (+ public holidays)
  
• Life Cover equivalent to 4 times annual salary
  
• Company Stakeholder Pension Scheme
  
• Private Medical Insurance
  
• 2 corporate social responsibility days per year
  
• Broad range of learning opportunities, such as professional qualifications, collective/individual training, and personalised support programmes
  
• Attractive Employee Referral Rewards Scheme
  
• Access to our growing employee networks including AccessAbility, Encompass, RISE, Veterans & Reservists, WOMEN Together, Working Parents and Young Professionals.
  
• 24/7 Employee Assistance Program and access to a mental wellbeing app
  

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• Recognised qualification in mechanical / building services engineering, e.g., BEng / MEng or demonstrable experience.
  
• Experienced in designing mechanical services aligned with relevant standards, guidance and client requirements.
  
• Collaborative team player able to deliver practical and realistic programme for design to meet internal and external stakeholders and project demands.
  
• Capable of making effective decisions in consultation with project stakeholders and using judgement to escalating decisions.
  
• Experience designing mechanical services, particularly for data centres, clean rooms, pharmaceutical and mission‑critical projects.
  
• Experience designing at all stages of project lifecycle – pre‑construction, design and construction stages.
  
• Passionate about the industry and willing to progress.
  
• Experience with AutoCAD and Revit is desirable.
  
• Hevacomp / IES / Thermal Modelling experience is desirable.
  

Equans, a subsidiary of the Bouygues group, is a world leader in the energy and services sector with operations in 20 countries and 90,000 employees working across five continents, with a turnover of €19.2 billion in 2024.

Bouygues Energies & Services Industry is a Equans Group company that specialises in executing technically challenging, time‑sensitive projects in critical environments: cleanrooms, laboratories, industrial plants and data centres. With over 50 years of experience, we offer clients seamless consulting and engineering solutions through an in‑house design, build, operate and maintain delivery model.

Day in, day out, our teams deliver some of the most technically innovative and challenging projects. We offer competitive basic salaries with generous company benefits.

If this role is of interest to you, please click below to register, apply, and track your progress. A member of our Resourcing Team will review your application and be in touch.

As part of our commitment to better reflect the markets in which we operate, we encourage applications from women, ethnically diverse individuals and people with disabilities, along with all candidates who identify with protected characteristic groups under the Equality Act 2010.

We’re committed to delivering a culture where everyone’s voice is heard and supported. We know the value a diverse workforce creates, delivering better results for our people, customers, and stakeholders. Diversity and inclusion is at the core of what we do. If you join Bouygues Energies & Services you’ll find a welcoming and open workplace where you’re supported and encouraged to be your true self at work.

You’ll also have access to our growing employee networks including AccessAbility, Encompass, RISE, Veterans & Reservists, WOMEN Together, Working Parents and Young Professionals.