Senior Sustainability / Building Physics Engineer

Senior Sustainability / Building Physics Engineer (Hybrid – Bristol Area)

Location: Bristol (Hybrid working with minimum 2 days onsite)
Salary: Competitive, with annual performance bonus
Hours: Full-time (37 hours/week)

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About the Role

An established building services consultancy in the Bristol area is looking to add a Senior Sustainability / Building Physics Engineer to their growing team. This is a fantastic opportunity to work on a variety of high-profile projects across education, healthcare, commercial, residential, and leisure sectors.
You will be a key contributor to sustainability and building physics input on projects — from energy modelling and life cycle assessments to BREEAM, Passivhaus, and Net Zero Carbon strategies. Alongside project work, you’ll mentor junior engineers and collaborate closely with multi-disciplinary teams to deliver innovative, low-carbon building designs.

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Key Responsibilities

• Lead sustainability and building physics consultancy services throughout project lifecycles
• Perform thermal modelling, energy performance analysis, embodied carbon calculations, and life cycle assessments
• Prepare clear technical reports, sustainability statements, and certification documentation (BREEAM, Passivhaus, etc.)
• Attend design team, client, and site meetings, providing expert advice and guidance
• Mentor and support junior team members, fostering a collaborative and learning-focused environment
• Keep up to date with evolving UK regulations and best practice frameworks, including Part L, NPPF, and local planning policies
• Manage workload efficiently to deliver high-quality work within deadlines

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Candidate Profile

• Degree qualified in Building Services, Environmental or Architectural Engineering, Energy, Sustainability, or a related field
• Certified Low Carbon Energy Assessor (or working towards qualification)
• Strong experience in building physics principles, thermal modelling, and sustainability assessments
• Proficient with software such as IES, AutoCAD, and Revit
• Familiar with UK sustainability standards and regulations including BREEAM, Passivhaus, Net Zero Carbon, Part L, and NPPF
• Excellent communication, organisational, and analytical skills
• Comfortable working independently and collaboratively
• Demonstrable leadership and mentoring capabilities

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Benefits & Culture

• Competitive salary and annual performance-related bonus
• Generous holiday entitlement with additional long-service leave
• Flexible hybrid working arrangements promoting work-life balance
• Private healthcare and life insurance
• Company pension scheme
• Cycle to work and referral bonus schemes
• Strong commitment to personal development, including support towards professional chartership

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If you are an experienced Sustainability / Building Physics Engineer seeking a new challenge with career progression and impactful projects, please get in touch.
Apply confidentially today with your CV and covering letter.