Senior Sustainability Engineer London CTJ64 45,000 - 55,000

A leading, sustainability-driven building services consultancy is looking to appoint a Senior Sustainability Engineer to join its London team. This is an excellent opportunity for a skilled professional with a strong background in building performance modelling and low-carbon design, particularly with hands-on experience using IES-VE and Apache HVAC.

Key Responsibilities

• Lead the development of dynamic simulation models using IES-VE, including detailed HVAC system modelling with Apache HVAC
• Deliver performance analysis for energy, thermal comfort, daylighting, and overheating (TM52/TM59)
• Prepare technical reports and sustainability documentation to support planning and compliance (e.g., Part L, London Plan, BREEAM inputs)
• Liaise with clients, design teams, and project stakeholders to deliver integrated, low-energy solutions
• Contribute to design reviews, project coordination, and internal knowledge sharing
• Mentor junior modellers and contribute to the growth of the building physics capability within the team

Candidate Profile

• Minimum 3 years' experience in building physics, sustainability consultancy, or building services engineering
• Degree in Building Services, Environmental Engineering, Mechanical Engineering, Architecture, or related field
• Proficient in IES-VE with solid experience using Apache HVAC for DSM and system modelling
• Strong understanding of UK Building Regulations, energy strategies, and compliance assessments
• Confident communicator with strong reporting and client-facing skills
• Right to work in the UK and based in or near London (or open to relocation)

What's on Offer

• Competitive salary between 40,000 - 55,000, depending on experience
• Hybrid working and flexible hours
• Clear pathway to Associate-level roles and chartership (e.g., CIBSE, LETI, LCC)
• Involvement in high-profile, sustainability-led projects across sectors
• Friendly and forward-thinking team with a focus on environmental innovation

To apply or learn more, please contact Callum Jones at Penguin Recruitment via (url removed).