Skip to content

Principal Mechanical Engineer

Hybrid
  • London, England, United Kingdom
Data Centres

Job description

Deerns UK is an independent mechanical and electrical engineering consultancy firm with a global presence, specialising in data centre projects across the UK, Mainland Europe, India, and the Middle East. We are dedicated to delivering high-quality, innovative solutions for our clients in the data centre industry, including collocation providers and Hyperscale data centres. Our team comprises talented individuals who are passionate about pushing the boundaries of MEP design in data centre projects.

We are looking for an experienced Principal Mechanical Engineer with expertise in Critical Cooling, Ventilations and Fuel systems to join our dynamic team in London. The ideal candidate will have a minimum bachelor’s degree in mechanical engineering or equivalent, with a strong background as a project lead.

This is a full-time hybrid role for a Mechanical Engineer, Principal level located in our London office (3 days working from our office, 2 days from home or 50% of the time in the office).


Role responsibilities include:

  • Attend and/or lead Client, Design team, Professional teams, and Contractor’s team meetings.
  • Develop concept and detailed design of mechanical services and associated controls.
  • Produce Schematics, specifications, calculations, equipment schedules and reports to meet required robust industry and legal standards.
  • Coordinate your designs with the other disciplines.
  • Maintain a commercial awareness of projects, track hours versus agreed fee's.
  • Agree any variations or changes to the design prior to allocating additional hours.
  • Responsible for technical content and accuracy of Trainee, Graduates and Engineers.
  • Carrying out technical reviews of contractor’s technical submissions, working drawings and samples.
  • Monitor the quality of the contractor's mechanical installations, ensuring they meet the client's requirements and local standards / regulations.
  • Carrying out validation reviews of contractor’s designs and specifications.
  • Experience with large scale cooling and HVAC systems.
  • Ability to carry out problem solving on site.
  • Carry out QA/QC inspections on site and produce associated reports.
  • Attend witness testing activities on site and produce associates' reports.
  • Drive to achieve sustainable and energy efficient engineered solutions.
  • The role will involve some site attendances (UK and International).
  • Be capable of taking the lead on projects with minimal input from management team.

Job requirements

  • Bachelor’s degree in mechanical engineering or equivalent; degree/diploma in Engineering or similar preferred.
  • Chartered engineer with IET or CIBSE or equivalent UK body.
  • Extensive experience as a projects lead.
  • Previous mission critical design experience in across the data centre, clean tech or telecoms sectors working for consulting engineers.
  • Previous experience seeing projects through from concept through construction, including commissioning phases.
  • Willingness to support growth/mentor other team members.
  • Ability to work to schedule (tight deadlines) and budget.
  • Ability to prioritise own workload and that of their team.
  • Experience of being technical lead on project.
  • Familiarity with UK & EU regulations.
  • UK design experience necessary with deep knowledge of CIBSE, IEC, BS, ISO and EN Standards.
  • Very good proactive communicator.
  • Ability to use IES would be advantageous.
  • Proven ability to work independently, prioritise tasks, and meet project deadlines.


What do we offer?

  • Competitive salary
  • Hybrid work (3 days from our London office + 2 days from home or 50% of the time)
  • 25 days annual leave + UK bank holidays (option to purchase 5 extra days)
  • Referral scheme
  • Life Insurance and long-term sickness coverage
  • Performance related bonus
  • Pension (6% employer contribution)
  • Company social events
  • Cycle to Work scheme
  • Perkbox (a wide range of deals and discounts including health and fitness, entertainment, tech, and electronics)
  • Collaborative and supportive work environment
  • Exposure to diverse and challenging projects
  • International networking opportunities within the Deerns Groep BV


This is an exciting opportunity to join a dynamic team and work on prestigious data centre projects globally. The successful candidate will have the chance to contribute to innovative design solutions and collaborate with key players in the data centre industry. We offer competitive compensation packages and opportunities for professional development and growth.


Even if you do not meet all the criteria listed above, we encourage you to apply.

At Deerns, we are currently expanding, offering additional opportunities within our team. We value diversity and are constantly seeking talented individuals who can enhance our success. Your unique skills and experiences could be exactly what we need to drive our projects forward and accomplish our business objectives.

Come and join us on our exciting journey!

or