Principal Mechanical Engineer

Principal Mechanical Engineer Full-time State/Province: Dublin Business Group: DCS Legal Entity: AECOM Ireland Limited Business Line: B&P - Buildings & Places Work Location Model: Hybrid Operating Group: International Primary Location: IE - Dublin, 1 Burlington Plaza Company Description Work with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations. There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world. We're one global team driven by our common purpose to deliver a better world. Join us.

Start here. Grow here. AECOM is looking for an experienced and ambitious Principal Mechanical Engineer to join our expanding Buildings + Engineering team in Dublin. This is an excellent opportunity to take a leadership role in delivering innovative mechanical building services solutions across a diverse portfolio of projects, including healthcare facilities, education campuses, railway stations, and mission-critical data centres. As part of a collaborative multidisciplinary team, you will lead the design and delivery of complex engineering projects while working closely with clients, architects, contractors, and industry stakeholders. You'll play a key role in developing sustainable, high-performing building services solutions and contribute to the continued growth and success of our Building Services business in Ireland.

Lead the mechanical design and successful delivery of major building services projects across the healthcare, education, transport, and data centre sectors. Provide technical leadership on complex projects, ensuring designs comply with Irish and international standards, regulations, and industry best practice. Coordinate multidisciplinary design teams, working closely with electrical, structural, civil, architectural, and specialist engineering disciplines. Develop innovative, energy-efficient, and low-carbon mechanical engineering solutions that support sustainable building design. Build and maintain strong client relationships, acting as a trusted technical advisor throughout all stages of project delivery. Manage project schedules, resources, budgets, and commercial performance to ensure successful project outcomes. Review and approve engineering calculations, technical reports, specifications, and design documentation. Mentor, coach, and support the professional development of junior engineers and graduates within the team. Support business development by contributing to proposals, client presentations, and project interviews. Drive continuous improvement initiatives and promote engineering excellence and best practice across the Building Services team.

We're seeking a highly motivated mechanical engineer with strong technical expertise, leadership capabilities, and experience delivering complex building services projects. You'll have excellent communication and stakeholder management skills, a collaborative approach to problem-solving, and a passion for delivering sustainable engineering solutions that create lasting value for our clients and communities.

Ready to push the limits of what's possible? We're looking for an experienced and driven engineering professional who is passionate about delivering high-quality mechanical