Alternative Heat Ltd

Head of Design - Decarbonisation Application Deadline: 11 February 2026 Department: Design Employment Type: Full Time Location: Mallusk Reporting To: Associate Director Description The opportunity has arisen to join an industry leader in UK's & Ireland's commercial decarbonisation sector. At Alternative Heat, we are at the forefront of innovative, sustainable building solutions. As a leader in the design, development, and delivery of offsite-prefabricated energy systems, we take pride in offering groundbreaking decarbonisation solutions throughout Ireland, UK and Europe. As part of our mission to drive the transition to renewable and low-carbon energy solutions, we are excited to announce an opportunity for a Head of Design for Decarbonisation to join our team. This pivotal role will shape the future of sustainable energy delivery across a diverse portfolio of public and commercial sectors. Team Overview The Design department is responsible for developing innovative, practical, and fully coordinated mechanical and electrical building services solutions tailored to each project. Working closely with clients, project teams, and the BIM department, the design team transforms concepts into detailed, build-ready technical designs that meet regulatory standards, client specifications, and sustainability goals. Their work underpins the technical accuracy and efficiency of our installations, ensuring seamless integration from planning through to construction. Role Overview As Head of Design, you will lead the technical development and detailed design of decarbonisation solutions, including district heating systems, energy centres, and renewable energy integrations. Working closely with internal and external teams, you will ensure robust, innovative, and compliant design output, with a strong focus on design coordination, technical detailing, and delivery assurance from Stage 2 onwards. Job Title Head of Design - Decarbonisation Location Northern Ireland (Banbridge or Mallusk) Hours Monday-Thursday 8am-5pm and Friday 8am-3pm Salary Competitive Depending on Experience Responsible to Associate Director What You'll be Doing: Develop and oversee the company's design strategy for decarbonisation projects, with a clear focus on detailed design delivery from RIBA Stage 2 to practical completion. Ensure technical accuracy and quality of detailed designs, drawings, and specifications, with an emphasis on performance, safety, and environmental compliance. Guide the integration of emerging technologies into detailed designs, including renewable sources, heat networks, and smart energy systems. Lead the production of detailed whole-system energy models, schematics, load calculations, plant selection, BoMs, and project-specific documentation.

A leading decarbonisation solutions company in the UK is seeking a Head of Design for Decarbonisation to lead technical development in their projects. This role involves overseeing design strategies, ensuring accuracy and quality in specifications, and integrating advanced technologies. Candidates should have experience in overseeing detailed designs from RIBA Stage 2 and demonstrable expertise in energy modeling. This full-time position offers competitive compensation based on experience and is based in Northern Ireland.

Head of Design - Decarbonisation Application Deadline: 11 February 2026 Department: Design Employment Type: Full Time Location: Mallusk Reporting To: Associate Director Description The opportunity has arisen to join an industry leader in UK's & Ireland's commercial decarbonisation sector. At Alternative Heat, we are at the forefront of innovative, sustainable building solutions. As a leader in the design, development, and delivery of offsite-prefabricated energy systems, we take pride in offering groundbreaking decarbonisation solutions throughout Ireland, UK and Europe. As part of our mission to drive the transition to renewable and low-carbon energy solutions, we are excited to announce an opportunity for a Head of Design for Decarbonisation to join our team. This pivotal role will shape the future of sustainable energy delivery across a diverse portfolio of public and commercial sectors. Team Overview The Design department is responsible for developing innovative, practical, and fully coordinated mechanical and electrical building services solutions tailored to each project. Working closely with clients, project teams, and the BIM department, the design team transforms concepts into detailed, build-ready technical designs that meet regulatory standards, client specifications, and sustainability goals. Their work underpins the technical accuracy and efficiency of our installations, ensuring seamless integration from planning through to construction. Role Overview As Head of Design, you will lead the technical development and detailed design of decarbonisation solutions, including district heating systems, energy centres, and renewable energy integrations. Working closely with internal and external teams, you will ensure robust, innovative, and compliant design output, with a strong focus on design coordination, technical detailing, and delivery assurance from Stage 2 onwards. Job Title Head of Design - Decarbonisation Location Northern Ireland (Banbridge or Mallusk) Hours Monday-Thursday 8am-5pm and Friday 8am-3pm Salary Competitive Depending on Experience Responsible to Associate Director What You'll be Doing: Develop and oversee the company's design strategy for decarbonisation projects, with a clear focus on detailed design delivery from RIBA Stage 2 to practical completion. Ensure technical accuracy and quality of detailed designs, drawings, and specifications, with an emphasis on performance, safety, and environmental compliance. Guide the integration of emerging technologies into detailed designs, including renewable sources, heat networks, and smart energy systems. Lead the production of detailed whole-system energy models, schematics, load calculations, plant selection, BoMs, and project-specific documentation.