Sustainability Engineer

We are looking for a Sustainability Engineer to join our growing team and contribute to innovative, data-driven, and environmentally conscious design solutions. You'll work across projects of all scales, supporting sustainable outcomes from early concept through to detailed design and delivery.

• Support design team coordination (Client, Architect, Structural, QS)
• Support fee budgeting, task prioritisation, and project delivery targets
• Lead and deliver the above activities across multiple projects
• Advise Project Managers/Directors on technical strategy and coordination
• Produce high-quality technical reports, surveys, audits, and RFI responses
• Participate in and contribute to internal/external training and development

This role is highly technical, requiring experience in performance simulation, environmental modelling, energy audits, and green building certifications such as LEED and BREEAM.

✅ Experience working toward certifications like BREEAM, LEED, NZEB, etc.

✅ Strong background in sustainable design, building physics, and performance simulation

✅ Proactive communicator with ability to collaborate across multi-disciplinary teams

✅ Familiarity with industry tools (e.g. IES VE, Rhino/Grasshopper, EnergyPlus, CFD tools)

• Heating and cooling load calculations (CIBSE Guide A)
• HVAC systems performance modelling, optimisation, and savings
• 3D geometry and dynamic modelling for buildings and masterplans
• BREEAM UK: HEA 1/8/10, ENE 1/6, CO₂ emissions, air quality, comfort
• Environmental comfort assessments (PMV, PPD, NZEB compliance)
• Natural ventilation strategies, overheating assessment, thermal comfort studies
• CFD simulations (indoor/outdoor airflow, heat transfer, occupant comfort)
• LEED credits, daylight, ventilation, energy optimisation

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Apply directly via LinkedIn.

At Axiseng, we’re passionate about shaping sustainable, efficient, and resilient buildings. You'll work in a forward-thinking, collaborative environment with opportunities to grow your technical expertise, lead cutting-edge projects, and influence real environmental outcomes. Benefits include;

• Employee referral bonus program
• 3pm finish every Friday
• Continuous learning support with mentorship and education
• Company-sponsored professional membership fees
• Hybrid working model offering flexibility
• Fun social events and monthly team lunches
• 23 days of holiday with the option to buy or sell extra days
• Travel tax or bike-to-work schemes
• Annual performance reviews and career development