Entry-Level Building Mechanical Engineers

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.

Job Description

AECOM’s Water Business Line  is seeking a talented  Entry-Level Building Mechanical (HVAC, Plumbing, and Fire Protection) Engineers to support water, wastewater treatment, flood protection, and associated projects in our Chelmsford, MA office. This position offers a unique opportunity to work within an established and successful national group under the direct responsible charge and supervision of Registered Professional Engineers that offers a diverse range of technical challenges and career development opportunities. Join our team while we continue to deliver innovative and successful projects and help the communities in which we live and work.

This position is expected to begin in Spring/Summer 2026.

The responsibilities of this position include, but are not limited to:

• Perform assignments requiring the application of standard techniques, procedures, and criteria to carry out engineering tasks associated with the technical design and layout of HVAC, plumbing, and fire protection systems. Assignments are designed to further develop judgment and understanding of professional and ethical responsibilities.
• Exercise engineering judgment for the development of preliminary selections and adaptations of engineering alternatives in the design of building HVAC, plumbing, and fire protection systems.
• Prepare engineering-related calculations, specifications, and develop drawings and visual aids.
• Prepare design drawings, plans, sections, details, and profiles/sections within the Autodesk Civil 3D, AutoCAD MEP, and Revit.
• Work under the mentorship and supervision of a senior engineer.
• Willingness and ability to occasionally travel to sites throughout North America.

Qualifications

Minimum Requirements:

• Bachelor’s degree in Mechanical Engineering or other related field.
• Must have a valid U.S driver’s license and as a condition of employment, must be able to pass AECOM’s Motor Vehicle Records review.

Preferred

Qualifications

• Prior related intern and/or professional experience.
• Successful Passing of the Engineer-in-Training (EIT) or Fundamentals of Engineering (FE) exam.
• Capable of using spreadsheet, word processing, and standard office software. 
• Basic knowledge of industry-standard computer software for the position such as AutoCAD, Revit, Bluebeam, and commercially available engineering analysis packages. 
• Coursework in thermodynamics and hydraulics. 
• Detail-oriented while still able to understand/comply with the big picture/goals of a project. 
• Ability to multi-task. 
• Strong logic and writing skills. 
• Documents time and effort accurately. 
• Ability to work productively in a team environment. 
• Good verbal and written communication skills. 
• Flexible – can adapt to shifting priorities/work schedules. 
• Able to work independently. 
• Self-learner. 
• Can take directions from others and in turn can guide others. 

Additional Information

• Relocation assistance is not available for this position.
• Sponsorship for US employment authorization is not available now or in the future for this position.

About AECOM

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options ,  well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2024. Learn more at aecom.com. 

What makes AECOM a great place to work

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community—where you have the freedom to grow in a world of opportunity.

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.