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 is seeking a motivated Traffic Engineer with at least two years of professional experience to join our Transportation team in a hybrid role based in Los Angeles or Orange, CA. This is an excellent opportunity for a junior or mid-level traffic engineer ready to contribute to meaningful infrastructure projects and develop their technical and professional expertise.

MINIMUM QUALIFICATIONS

• Bachelor’s degree in civil engineering or a related field.
• Minimum of 2 years of experience in traffic engineering, transportation planning, or roadway design or equivalent of education and experience.
• EIT certification or ability to obtain it within 6 months.

PREFERRED QUALIFICATIONS

• Experience working with Caltrans and/or LADOT standards and procedures.
• Exposure to traffic signal design, signing and striping plans, and temporary traffic control.
• Familiarity with AutoCAD, MicroStation, and traffic simulation software (e.g., Synchro, HCS).
• Strong written and verbal communication skills.
• Detail-oriented with the ability to contribute to multiple projects simultaneously.
• A desire to learn from experienced engineers and grow into a lead or management role.

As a key team member, your responsibilities will include:

• Assisting in the preparation of traffic impact studies, traffic signal designs, signing and striping plans, and road safety audits under the supervision of senior engineers.
• Performing data collection and field investigations to support project development and analysis.
• Contributing to traffic analysis and modeling using tools such as Synchro, VISSIM, and SIDRA.
• Collaborating with project teams, including planners, civil designers, and project managers, to deliver technical solutions.
• Supporting the preparation of technical reports, drawings, and presentations for clients and stakeholders.
• Ensuring project work complies with local, state (e.g., Caltrans, LADOT), and federal traffic engineering standards.
• Participating in internal reviews, quality checks, and continuous improvement processes.
• Developing your understanding of regulatory processes, safety principles, and construction phase services.

Qualifications