A well-established, design-led engineering consultancy is seeking an experienced IES Energy Modeller / Sustainability Consultant to join its growing team. This is an opportunity to contribute to high-quality, technically complex building projects while playing a key role in delivering low-carbon, high-performance design solutions across a diverse portfolio. They have a reputation for delivering innovative, sustainable engineering solutions and operate across a wide range of sectors including commercial, residential, education, and mixed-use developments. The company places strong emphasis on integrated design, environmental performance, and technical excellence, combining engineering expertise with a collaborative, forward-thinking approach. Their work spans mechanical, electrical, and public health engineering, alongside sustainability and energy consultancy, with a clear focus on reducing environmental impact and improving building performance. Role: You will act as a key member of the sustainability team, leading and supporting energy modelling and environmental analysis across multiple projects. The role involves both hands-on simulation work and client-facing consultancy, contributing to planning submissions, compliance strategies, and low-carbon design development. Responsibilities:
Our client is a privately owned building services consultancy established in 1987. They have experienced steady growth by providing first-class project delivery and now consist of a team of 50 multi-disciplinary Building Services and Sustainability Engineers. They are looking for a Senior Mechanical Engineer to work on some of the UK’s largest high-end residential and hotel projects. Key Accountabilities
Client: A dynamic and forward-thinking property consultancy, working at the intersection of development, planning, sales, and strategic advice. They partner with landowners, developers, and investors to unlock value and deliver high-quality outcomes across residential and mixed-use projects. You will be joining an employee‑owned company where you share in their success, have a real voice, enjoy profit‑sharing, and thrive in a collaborative, people‑first culture built for long‑term stability and growth. Known for their commercial insight and hands-on approach, they pride themselves on combining technical expertise with a collaborative, people-first culture. Their team works closely with clients throughout the full lifecycle of a project, offering tailored solutions rather than one-size-fits-all advice. Ambition, integrity, and teamwork underpin everything they do. They offer a supportive environment where individuals are trusted, encouraged to take responsibility, and given the opportunity to grow their skills and careers while contributing to meaningful projects. Role: