Senior Traffic Engineer – Supervising Traffic Engineer

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 Senior Traffic Engineer – Supervising Traffic Engineer to be based in the Bay Area or in Sacramento, CA . Summary of Responsibilities: Senior technical resource may serve as technical advisor for team Provides specialized technical input to studies and design for staff's specific area of expertise. Develops study and design procedures to facilitate high quality cost effective work by others. Participates in interdisciplinary review of project deliverables. Develops construction cost estimates and estimates of technical efforts for projects. Uses expertise in all steps of completing discipline component of PS&E package. Performs quality control review of design calculations or drawings. Prepares technical specification sections. Provides input to the development of engineering budget and schedule to meet requirements. Job Description: Lead traffic studies for projects in California and support West Coast regional projects as needed. Caltrans experience required. 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. Relevant experience in transportation planning, modeling, and engineering for multimodal transportation projects. Support a wide range of planning and preliminary engineering projects for roadways, freeways, transit systems, managed lanes, and bicycle and pedestrian facilities. Assist project managers on various projects involving transportation plans, traffic safety, and public involvement, and the overall preparation of CEQA and NEPA compliance documents. Experience with FHWA, state, and local transportation planning, traffic, and environmental processes. Must be highly self-motivated with the ability to successfully multi-task, perform detail-oriented work, work independently, and demonstrate effective time management skills. Gather and correlate basic engineering data using established and well-defined procedures. Work on detailed or routine engineering assignments involving design calculations, analysis, value engineering, writing technical specifications, and project cost estimates. Propose approaches to solve new problems encountered, apply innovative design solutions, and implement current technology to meet project design needs. Provide guidance, mentorship, and coaching to entry-level/junior engineers or technicians to help them improve their technical skills. Perform work in accordance with agreed-upon budgets and schedules with little supervision. Skilled in the use of Microsoft Office programs and other relevant software programs (Word, Excel, Outlook, and preferably Project). Skilled in traffic simulation/modeling software, including Synchro/SimTraffic, VISSIM, HCS, and other platforms utilized by local agencies in California. 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. Minimum Requirements: BA/BS + 6 years of relevant experience or demonstrated equivalency of experience and/or education Certified Engineer (PE/TE/PTOE) license in California, or the ability to obtain the license within 6 months. Preferred Qualifications: Master's degree in Civil Engineering or equivalent. 8+ years of relevant experience. Experience with traffic engineering projects and clients on the West Coast (California, Washington, Oregon, and Nevada). Experience with ITS or emerging technology projects and clients on the West Coast (California, Washington, Oregon, and Nevada). Experience in business development activities, including preparing project proposals and firm marketing. Experience and familiarity with traffic operational analysis, including traffic projections, analysis, and simulation; traffic safety analysis; traffic signal warrants; traffic signal and pedestrian crossing control system analysis and design. Experience and familiarity with ITS and technology projects following the systems engineering process and local client requirements. The right balance of management and technical skills, and experience serving internal and external clients. Familiarity with or knowledge of MicroStation, AutoCAD, Synchro, VISSIM, or other similar applications. Sponsorship is not offered for this position. At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment. 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.