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AECOM Careers. Work with us. Change the world. We believe infrastructure has the power to uplift communities and improve people's lives.

Job Information

AECOM Senior Mechanical Engineer (Licensed) in Orange, California

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 nearly 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 is seekinga Licensed Mechanical Engineer to join our team in the Orange, CA area. We are open to this person being seated in Los Angeles or Orange.

We are seeking an individual who has a strong background in design-build projects. Experience with mechanical, plumbing and fire protection systems is strongly preferred. The ideal candidate understands and has proven track record in design quality, project delivery, and has the ability to make decisions on the spot in the field.

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

  • Evaluate, select, and apply standard engineering techniques, procedures, and judgement based on experience to design and construct HVAC and plumbing systems and equipment in buildings using building information modeling

  • Coordinate HVAC and plumbing systems with other disciplines to produce complete building system designs

  • Perform construction inspection and observation on active construction projects and create detailed reports

  • Review and revise existing standards of engineering techniques, procedures, and practices in building design and building information modeling

  • Participation in development of proposal responses, project planning, and staffing

  • Development of system related narratives (technical writing, organizing the document, development of graphics)

  • Ability to concisely express complex system solutions in very early design phases in order to share intent either internally for further development, or externally to assist design partners

  • Utilize Autodesk tools such as REVIT and CAD

  • Coordinate mechanical system design with electrical engineers, architects, and other design professionals

  • Review and edit technical specifications

  • Interact and work with diverse set of market types, clients, and subcontractors


Minimum Requirements:

  • Bachelor’s Degree in Engineering or related field plus 6+ years of industry engineering experience or demonstrated equivalency of experience and/or education

  • Licensed Professional Engineer

Preferred Qualifications:

  • Bachelors or Masters Degree in Mechanical Engineering

  • 10+ years experience within a consulting or design-build firm

  • Experience with Design Build and other Alternative Delivery practices

  • Excellent project planning, project management, organizational and time management skills

  • Extensive understanding of HVAC engineering fundamentals including load calculations, conceptual systems analysis through construction documentation design, design and layout of equipment, duct, and pipe sizing

  • Plumbing and Fire Protection systems design experience is a plus

  • Experience interacting and working with a diverse set of clients and subcontractors

  • Experience with Revit (Revit preferred) and AutoCAD

  • Excellent communication skills: articulate, assertive, and confident

  • Creative thinker with effective teamwork skills

  • Thrive as a leader in a collaborative, multi-disciplinary team

  • Enjoy developing innovative solutions to challenging opportunities

  • DBIA or Assoc. DBIA

  • Instrumentation and controls design/engineering experience

  • Ability to concisely express complex system solutions in very early design phases in order to share intent either internally for further development, or externally to assist design partners

Additional Information

  • Relocation assistance within the United States is available for this position

  • Sponsorship is not available for this position.

  • Offered rate of compensation will be based on individual education, qualifications, experience, and work location. The salary range for this position is $130,000 - $170,000.

AECOM is proud to offer a comprehensive benefits program to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D and disability benefits, paid time off, leaves of absence, voluntary benefits, perks, wellness and global well-being, and global EAP, Business Travel and Service Awards programs.


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 $13.1 billion in fiscal year 2022. See how we are delivering sustainable legacies for generations to come at 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 culture of equity, diversity and inclusion – 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 and benefits programs to meet the diverse needs of our employees and their families. We also provide a robust global well-being program. 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.

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

ReqID: J10099205

Business Line: B&P - Buildings & Places

Business Group: DCS

Strategic Business Unit: West

Career Area: Engineering

Work Location Model: Hybrid