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Sr. Traffic Engineer (Hybrid)

AECOM
Los Angeles, United Statesfull_timeVerifiedPosted 10 Oct 2025

About the role

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 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 Senior Traffic Engineer to be based in Orange or Los Angeles, California.

Job responsibilities include, but are not limited to:

  • Lead traffic engineering projects throughout California
  • Plan approvals through LADOT and Caltrans
  • Strong verbal and written communication skills and the ability to discuss projects with co-workers, clients, regulatory agency staff, AECOM staff, and the public in meetings and at public events as well as write concise and readable technical reports and documents
  • Supporting a wide range of traffic engineering projects for roadway, freeway, transit systems, managed lanes, bicycle and pedestrian facilities
  • Must be highly self-motivated with the ability to successfully multi-task, perform detail-oriented work, work independently, and demonstrate effective time management skills
  • Gathers and correlates basic engineering data using established and well-defined procedures
  • Works on detailed or routine engineering assignments involving design calculations, analysis, value engineering, writing technical specification and project cost estimate
  • Proposes approach to solve new problems encountered, apply innovative design solution, implementing current technology to meet project design needs
  • Provides guidance, mentor and coach to entry level/junior engineers, or technicians, to learn and improve their technical skills
  • Performs work in accordance with agreed upon budget and schedule with little supervision
  • Skilled in the use of Microsoft Office programs and other relevant software programs (Word, Excel, Outlook, and preferable Project)Skilled in MicroStation and AutoCAD software
  • Must be highly self-motivated with the ability to successfully multi-task, perform detail-oriented work, work independently, demonstrate effective time management skills, and consistently deliver high quality deliverables

Qualifications

MINIMUM REQUIREMENTS:

  • BA/BS plus eight (8) years of relevant experience including work in the state of California or demonstrated equivalency of experience and/or education

PREFERRED QUALIFICATIONS:

  • 10+ years of job-related experience, or demonstrated equivalency of experience and/or education
  • California PE/TE license
  • Hands on design/study experience on Caltrans transportation projects and familiar with Caltrans standards, Highway Design Manual, Traffic Manual, Highway Capacity Manual, policy and procedures

Additional Information

  • This position does not offer sponsorship 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 2024. Learn more at aecom.com. 

What makes AECOM a great place to work 

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AECOM

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