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Mechanical Building Services Design Engineer - Hybrid


We are looking for an experienced Mechanical Building Services Design Engineer to join Arup’s growing team in London, working on a range of exciting and technically challenging projects across sectors including Data Centres, Rail, Healthcare, Education, Residential and Commercial.

This is a great opportunity for a design-focused engineer looking to take ownership of mechanical building services designs, work on large-scale multidisciplinary projects and contribute to innovative, sustainable building solutions.


Location: London


Salary: Up to £65,000 + benefits.


The Opportunity

You will play a key role in the design and delivery of mechanical building services systems, taking projects from initial concept and feasibility through to detailed design and completion.

Working alongside multidisciplinary engineering and architectural teams, you will be responsible for developing technical designs, producing calculations and specifications, and ensuring

mechanical systems are efficient, sustainable and fit for purpose.


Key areas of responsibility include:

  • Producing detailed mechanical building services designs, drawings and technical specifications.
  • Designing HVAC, heating, cooling and ventilation systems.
  • Carrying out mechanical design calculations, system sizing and equipment selection.
  • Developing mechanical systems for Data Centres and other mission-critical environments.
  • Supporting energy efficiency, decarbonisation and sustainable building design strategies.
  • Working within BIM environments, particularly using Revit, alongside thermal modelling software such as IES.
  • Reviewing and evaluating designs to ensure technical quality, performance and compliance.
  • Liaising with clients, contractors and multidisciplinary project teams throughout the design process.


What We're Looking For

  • A degree in Mechanical Engineering, Building Services Engineering or a related discipline.
  • Strong experience in mechanical building services design, with the ability to take ownership of technical designs.
  • Must be Chartered (CEng).
  • Good knowledge of HVAC, heating, cooling and ventilation system design.
  • Experience using Revit and ideally IES thermal modelling software.
  • An understanding of sustainable building design, energy efficiency and carbon reduction.
  • Strong communication and teamwork skills, with experience supporting junior engineers and managing technical delivery beneficial.


Benefits include: Private medical insurance, life assurance, income protection, flexible benefits and profit share.


Arup offers the opportunity to work on major projects, take ownership of complex mechanical designs and develop your career within a highly regarded engineering consultancy.