Principal Mechanical Engineer

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.

Key Responsibilities

• 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.

What We're Looking For

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.