Multidisciplinary Design Jobs in California (NOW HIRING)

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.

AECOM is seeking a Bridge Design Project Engineer III to join our Orange, CA office. This is a career-enhancing opportunity to contribute to the design and analysis of transportation structures across Los Angeles, Southern California, and the greater Western U.S. The role offers exposure to a wide variety of challenging projects and the chance to work within a dynamic and experienced bridge group.

This position serves as a gateway to a rewarding career, providing opportunities for professional and technical growth as well as career advancement.

Key Responsibilities:

• Structural Design and Analysis:

  • Prepare structural designs, plans, specifications, and cost estimates for transportation structures, including bridges, retaining walls, and drainage structures.
  • Conduct load rating analysis, rehabilitation concepts, and structure type evaluations.

• Technical Expertise:

  • Utilize current engineering design software to perform detailed calculations and analyses.
  • Propose innovative approaches to solve new engineering challenges and identify discrepancies in results.

• Collaboration and Coordination:

  • Coordinate with multidisciplinary design teams to ensure seamless project delivery.
  • Perform specific and limited portions of broader assignments under the guidance of experienced engineers.

• Data Collection and Reporting:

  • Gather and correlate basic engineering data using established procedures.
  • Work on detailed or routine assignments involving calculations and simple tests.

• Mentorship and Guidance:

  • Provide guidance and mentorship to entry-level engineers, fostering their development.

• Project Management:

  • Perform work in accordance with agreed-upon budgets and schedules, with moderate supervision.

Why Join AECOM?

• The opportunity to work on diverse and challenging bridge design projects across the Western U.S.
• A dynamic work environment with exposure to a vast portfolio of bridge types and sizes.
• A pathway to professional growth, technical development, and career advancement.
• The chance to collaborate with highly experienced teams in a supportive and innovative environment.

Minimum Qualifications:

• Bachelor's degree + 4 years of related experience or demonstrated equivalency of experience and/or education.

Preferred Qualifications:

• Bachelor's degree in civil or Structural Engineering (or related field); advanced degrees or certifications are a plus.
• 5+ years of bridge and other transportation structures (retaining walls, culverts, OH signs, etc.) design experience with Caltrans project delivery and other California / U.S. West Coast agencies.
• Experience with Caltrans and AASHTO bridge design practices, techniques, and applicable Codes.
• Knowledgeable of other standard engineering practices, techniques, and applicable Codes, such as IBC/CBC, AREMA, MRDC, etc.
• Excellent verbal communication and writing skills, including technical report writing.
• Structural problem analysis skills (including knowledge/use of design and calculation tools, software).
• High proficiency with software such as MicroStation, LEAP Concrete/Bridge, PTC MathCAD, CSiBridge and/or MIDAS Civil?
• High proficiency with CAD software (MicroStation, AutoCAD, Civil 3D)
•  A current PE license in the State of CA.

• No relocation offered with this opportunity.
• Sponsorship is not offered for this position now or in the future.

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 2025. 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.