ORS
Overview
About us Since 1991, ORS has led the way in anticipating and responding to diverse client requirements in the construction industry. Time and experience have enabled us to create significant additional value in our projects with the blending of nine distinct specialist design and build services. Over the decades, we have developed trusted, lasting partnerships with our property developer, international project funding agency, local authority, government agency and private clients. Our end-to-end project collaboration with stakeholders, architects, design teams and contractors ensure excellent, innovative solutions. We are proud to have been recognised as one of Ireland\'s Best Workplaces by Great Place to Work for the 7th consecutive year in 2025. In 2024, we were also awarded Best Company to Work For, Excellence in Recruitment & Retention, Best People Development in Engineering and Great Place to Work Team Award. At ORS, our people-centric culture drives everything we do. These accolades reflect our unwavering commitment to cultivating a positive and supportive work environment that nurtures and empowers our employees. About the role
As a Sustainability Engineer, you will play a pivotal role in conducting energy audits, implementing energy efficiency measures, and supporting the development of sustainable energy strategies for our diverse client base. You will work closely with senior engineers, project managers, and clients to deliver high-quality, cost-effective solutions that align with national and international sustainability goals. About you
You are a proactive Sustainability Engineer with 2–5 years of experience in energy efficiency and sustainable design. Skilled in energy audits, modelling tools like IES VE, and compliance with Irish regulations, you deliver practical solutions that align with client goals. Collaborative and client-focused, you communicate complex technical information effectively and thrive in multidisciplinary teams. Passionate about sustainability, you are eager to contribute to impactful energy projects and support the transition to a low-carbon future. Skills & experience
Bachelor’s degree (NFQ Level 7) or higher in Energy Engineering, Mechanical/Electrical Engineering, Building Services, or a related field. Minimum of 3–5 years’ experience in energy engineering, sustainability consulting, or a related discipline. Experience completing energy audits (S.I. 426 Compliance). Regulatory Knowledge: Familiarity with Irish building regulations, energy performance standards, and sustainability certification systems (Climate Action Plan Targets). Communication Skills: Strong written and verbal communication skills, with the ability to present technical information to diverse audiences. Project Management: Ability to manage multiple projects simultaneously, demonstrating strong organisational and time-management skills. Driving License: Full, clean driving license and willingness to travel to client sites as required. Other desirable skills
ISO50001 Implementation/Maintenance Experience CEM/CEA Accreditation Experience with energy modelling software building energy simulations, and thermal comfort analysis (BER Certification/Part L Compliance). What\'s in it for you?
Aside from our people, culture and mission, there are a variety of additional benefits that help make ORS a great place to work: Remote working model Engineers Ireland CPD Accredited employer Certified Best Place to Work Ireland (2019-2025) Attractive rewards framework including a bi-annual bonus, pension contribution, and additional annual leave Competitive market salary Winner of "best hybrid way of working" and Great Places to Work Ireland Award 2024 Flexible working Professional memberships Weekly events (CPD\'s, virtual events, social events, workshops, guest speakers, and fun team activities) High-impact working environment with a flat ORG structure ORS is committed to creating a diverse and inclusive company culture. We foster a culture of inclusion for all employees that respects and supports their individual strengths, views and experiences.
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About us Since 1991, ORS has led the way in anticipating and responding to diverse client requirements in the construction industry. Time and experience have enabled us to create significant additional value in our projects with the blending of nine distinct specialist design and build services. Over the decades, we have developed trusted, lasting partnerships with our property developer, international project funding agency, local authority, government agency and private clients. Our end-to-end project collaboration with stakeholders, architects, design teams and contractors ensure excellent, innovative solutions. We are proud to have been recognised as one of Ireland\'s Best Workplaces by Great Place to Work for the 7th consecutive year in 2025. In 2024, we were also awarded Best Company to Work For, Excellence in Recruitment & Retention, Best People Development in Engineering and Great Place to Work Team Award. At ORS, our people-centric culture drives everything we do. These accolades reflect our unwavering commitment to cultivating a positive and supportive work environment that nurtures and empowers our employees. About the role
As a Sustainability Engineer, you will play a pivotal role in conducting energy audits, implementing energy efficiency measures, and supporting the development of sustainable energy strategies for our diverse client base. You will work closely with senior engineers, project managers, and clients to deliver high-quality, cost-effective solutions that align with national and international sustainability goals. About you
You are a proactive Sustainability Engineer with 2–5 years of experience in energy efficiency and sustainable design. Skilled in energy audits, modelling tools like IES VE, and compliance with Irish regulations, you deliver practical solutions that align with client goals. Collaborative and client-focused, you communicate complex technical information effectively and thrive in multidisciplinary teams. Passionate about sustainability, you are eager to contribute to impactful energy projects and support the transition to a low-carbon future. Skills & experience
Bachelor’s degree (NFQ Level 7) or higher in Energy Engineering, Mechanical/Electrical Engineering, Building Services, or a related field. Minimum of 3–5 years’ experience in energy engineering, sustainability consulting, or a related discipline. Experience completing energy audits (S.I. 426 Compliance). Regulatory Knowledge: Familiarity with Irish building regulations, energy performance standards, and sustainability certification systems (Climate Action Plan Targets). Communication Skills: Strong written and verbal communication skills, with the ability to present technical information to diverse audiences. Project Management: Ability to manage multiple projects simultaneously, demonstrating strong organisational and time-management skills. Driving License: Full, clean driving license and willingness to travel to client sites as required. Other desirable skills
ISO50001 Implementation/Maintenance Experience CEM/CEA Accreditation Experience with energy modelling software building energy simulations, and thermal comfort analysis (BER Certification/Part L Compliance). What\'s in it for you?
Aside from our people, culture and mission, there are a variety of additional benefits that help make ORS a great place to work: Remote working model Engineers Ireland CPD Accredited employer Certified Best Place to Work Ireland (2019-2025) Attractive rewards framework including a bi-annual bonus, pension contribution, and additional annual leave Competitive market salary Winner of "best hybrid way of working" and Great Places to Work Ireland Award 2024 Flexible working Professional memberships Weekly events (CPD\'s, virtual events, social events, workshops, guest speakers, and fun team activities) High-impact working environment with a flat ORG structure ORS is committed to creating a diverse and inclusive company culture. We foster a culture of inclusion for all employees that respects and supports their individual strengths, views and experiences.
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