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.

We are seeking an ambitious and motivated Mechanical Engineer to join our established Dublin team. This is an excellent opportunity to work on a diverse portfolio of projects across sectors including commercial, healthcare, education, residential, industrial, and public infrastructure.

As part of a multidisciplinary consultancy environment, you will contribute to the design and delivery of high-quality mechanical building services solutions, working closely with clients, architects, contractors, and fellow engineering professionals. The successful candidate will be technically capable, commercially aware, and committed to delivering sustainable and innovative engineering solutions.

What you'll do

• Design mechanical building services systems, including heating, ventilation, air conditioning (HVAC), domestic water services, drainage, public health systems, and low-carbon energy solutions.
• Prepare engineering calculations, specifications, technical reports, and design documentation.
• Develop mechanical designs using industry-standard software and BIM platforms.
• Assist in the delivery of projects from concept and feasibility through to detailed design, construction, and handover.
• Coordinate designs with electrical, structural, architectural, and specialist disciplines.
• Attend client, design team, and site meetings as required.
• Ensure designs comply with current regulations, standards, sustainability targets, and industry best practices.
• Identify technical challenges and contribute practical, efficient engineering solutions.
• Support and mentor graduate and junior engineers within the team.
• Deliver work to agreed quality standards, budgets, and project programmes.
• Contribute to the development of sustainable, energy-efficient building services strategies aligned with project and client objectives.

Ready to push the limits of what's possible?

• Degree qualified in Mechanical Engineering, Building Services Engineering, or a related discipline.
• Experience working within a building services consultancy environment, delivering mechanical design solutions across a range of sectors.
• Knowledge of Irish and UK building regulations, standards, and mechanical building services design practices.
• Proficiency in industry-standard mechanical design software and BIM platforms, including Revit.
• Understanding of HVAC, public health, low-carbon, and sustainable building services systems.
• Strong communication, stakeholder engagement, and client-facing skills.
• Ability to work both independently and collaboratively within multidisciplinary project teams.
• Demonstrated problem-solving abilities with a focus on delivering practical and innovative engineering solutions.
• Commitment to professional development and working towards or holding Chartered Engineer status (Engineers Ireland, CIBSE, or equivalent)

Interested in the role or curious about life at AECOM? Follow us on LinkedIn, Facebook, Instagram, and YouTube to explore our AECOM voices, employee stories, latest projects, and much more! 

For further information about the role, reach out to the recruiter on LinkedIn Colum Calnan.

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM

AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $16.1 billion in fiscal year 2025. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

Freedom to Grow in a World of Opportunity 

You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation, benefits and well-being programs to meet the diverse needs of our employees and their families. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.

Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours.

We are a Disability Confident Employer and will offer an interview to applicants who have a disability or long-term condition, who meet the minimum/essential criteria for the role. Please let us know using this email address [email protected]  if you would like to apply through the Disability Confident Interview Scheme.

All your information will be kept confidential according to EEO guidelines.