Summary An exciting opportunity has arisen for an experienced Sustainability Consultant (Principal or Associate level) with a strong focus on energy and performance to join a forward-thinking consultancy team based in Reading (other office locations available). The role sits within a dynamic national sustainability practice that supports projects across the UK and beyond, delivering expert guidance on sustainable design, energy strategies, and environmental performance across a wide variety of sectors. The successful candidate will be working on innovative, technically challenging projects with the aim of pushing industry standards forward and driving real progress towards net zero and beyond. The Role In this position, the appointed consultant will lead the delivery of sustainability and energy consultancy services, managing large-scale projects and shaping best practices in energy strategy and environmental performance. A strong working knowledge of IES (Integrated Environmental Solutions) software will be essential, as this will be a key tool for delivering performance modelling and compliance assessments. Responsibilities include: Leading multi-disciplinary teams across diverse, high-profile projects. Managing project delivery and resourcing needs to meet deadlines and client expectations. Mentoring and guiding junior consultants. Overseeing project work and reviewing technical outputs. Supporting business development, including fee proposals and invoicing. Facilitating design workshops and engaging confidently with clients and stakeholders. Delivering advanced energy modelling and analysis using tools such as IES, including: Operational energy use and generation Dynamic thermal modelling for thermal comfort and overheating risk Part L compliance assessments Embodied carbon and circular economy strategies Leading environmental assessments such as BREEAM, WELL, HQM, or similar. Developing project-specific sustainability strategies from concept to completion. Contributing to internal R&D efforts and industry-wide innovation initiatives. About the Candidate The ideal candidate will possess: A strong technical background and experience in the built environment sector. A passion for sustainable design and creating long-term environmental impact. Previous experience in consultancy, with leadership capabilities and team management experience. Proven expertise in IES software, including: Dynamic simulation modelling Overheating assessments Energy performance analysis Compliance with Building Regulations Part L Proficiency in additional key areas such as: Energy strategy development Planning support and reporting Net zero carbon strategies and lifecycle carbon analysis A degree in engineering, environmental science, architecture, or a related field. Excellent communication and collaboration skills, with a proactive and solution-focused mindset. This is a rare opportunity not only for career progression but also to have a meaningful impact on the future of sustainable design and energy use in the built environment. Alongside career development, this role offers an excellent salary and extensive benefits. To discuss further, contact Ethan Williams on or click apply.