Senior Mechanical Lead - Building Services & Sustainability

AECOM; Dublin; On-site; EUR 90,000 - 120,000; Full time

Job summary

AECOM in Dublin is seeking an experienced Principal Mechanical Engineer to lead the mechanical building services design across a diverse portfolio including healthcare, education, transport and data centres. You’ll drive technical excellence, mentor junior engineers, and coordinate with electrical, civil and architectural teams to deliver high‑performing, sustainable solutions.

Join a global team delivering projects that shape communities, with leadership responsibility for design quality,

Qualifications

• Degree in Mechanical Engineering, Building Services Engineering, or related field.
• Chartered Engineer (CEng) status or pursuing chartership with Engineers Ireland.
• Extensive experience in design and delivery of mechanical building services.
• Proven track record leading multidisciplinary design teams.
• Strong HVAC, public health engineering, heating/cooling, and low-carbon tech expertise.
• Experience delivering projects across multiple sectors.

Responsibilities

• Lead mechanical design and delivery of major building services projects.
• Provide technical leadership ensuring designs meet standards.
• Coordinate multidisciplinary design teams with electrical, structural, civil, architectural, and specialist engineering disciplines.
• Develop energy‑efficient, low‑carbon mechanical engineering solutions.
• Build and maintain client relationships as trusted technical advisor.
• Manage project schedules, resources, budgets, and commercial performance.
• Review and approve calculations, reports, specifications, and design documentation.
• Mentor and support development of junior engineers.
• Support business development with proposals and client presentations.
• Promote engineering excellence and best practices.

Skills

Mechanical design

HVAC expertise

Leadership

Stakeholder management

Building services

Mentoring

Education

Degree in Mechanical Engineering

Job description

AECOM in Dublin is seeking an experienced Principal Mechanical Engineer to lead the mechanical building services design across a diverse portfolio including healthcare, education, transport and data centres. You’ll drive technical excellence, mentor junior engineers, and coordinate with electrical, civil and architectural teams to deliver high‑performing, sustainable solutions.

Join a global team delivering projects that shape communities, with leadership responsibility for design quality,