Job Detail

🏗 About the Role

We’re seeking a passionate Graduate or Intermediate Sustainability Engineer to join a leading multidisciplinary consultancy working on critical, sustainable projects across sectors such as data centres, healthcare, laboratories, airports, and commercial buildings.

You will play a vital role in driving sustainable design across all project stages — from concept to post-occupancy. You’ll collaborate with multi-disciplinary design teams, contribute technical input through building physics simulations, and advise on environmental assessments using frameworks like BREEAM, LEED, and WELL.

This is a great opportunity to be part of an organisation that sees sustainability as an integral part of performance, resilience, and innovation — not a bolt-on.

🧭 Responsibilities

• Carry out building physics consultancy services using CFD and energy modelling tools
• Conduct environmental assessments (e.g., BREEAM, LEED, WELL) across the design lifecycle
• Translate technical concepts into clear and practical design recommendations for clients and stakeholders
• Prepare or contribute to design specifications, reports, and sustainability submissions
• Stay up to date with industry developments, modelling methodologies, and standards
• Mentor junior engineers and review their work for quality and compliance.
• Participate in client-facing meetings and workshops
• Manage time effectively across multiple concurrent projects
• Take full accountability for the discipline’s output and client satisfaction
• Contribute to a culture of excellence, innovation, and collaboration.

🧠 Requirements

Graduate Level

• BSc/MSc in Mechanical Engineering, Building Services, Smart Buildings, or Physics
• Experience or training in:
• Energy modelling (IESVE incl. ApacheHVAC, Grasshopper/Rhino)
• CFD tools (any platform)
• Building fabric analysis (Psi-Therm, WUFI)



Intermediate Level:

• 2+ years professional experience in sustainability or building performance
• understanding of:
• Fluid dynamics, thermodynamics, and psychrometry
• Energy modelling: IESVE (ApacheHVAC), Grasshopper
• CFD: 6Sigma DCX
• Building fabric & embodied carbon: Psi-Therm, WUFI, OneClick LCA
• Sustainability certifications: BREEAM, LEED, WELL
• Desirable: LCEA certification, Passivhaus training, or simi

✅ Preferred Skills

• Strong MEP/building services knowledge
• Experience delivering clear, client-facing communication
• Familiarity with UK NCM, ASHRAE 90.1, TM54, TM61-63, NABERS UK
• Team player with excellent written and verbal communication

🎁 Benefits

• Competitive salary
• Hybrid working: 3 days from London office + 2 remotee
• 25 days holiday + bank holidays (option to buy 5 extra)
• Life insurance & long-term sickness cover
• Discretionary bonus (up to 10%)
• 6% employer pension contribution
• Cycle to Work scheme
• Employee Assistance Programme (EAP)
• Perkbox (wellness & discounts platform)
• Access to “GoodHabitz” L&D platform
• Diverse and inclusive work environment
• International project exposure
• 2 weeks remote working abroad (annually, manager’s discretion)