Traffic Engineer III

About the role

The Traffic Engineer III position at Alta is located in the Ontario / Inland Empire office. This role supports and leads traffic engineering analysis, safety and planning studies, and design tasks for sustainable transportation projects.

Responsibilities

• Lead and support conceptual design plans and engineering-backed recommendations in partnership with safety, planning, and design teams.
• Conduct multimodal traffic engineering analyses, including traffic operations, safety assessments, corridor/intersection studies, signal operations review, and traffic simulation/modeling.
• Prepare traffic signal timing and retiming evaluations, including signal timing sheets and implementation support as needed.
• Develop cost estimates for safety, planning, and engineering projects.
• Develop traffic signal plans, street lighting plans, ITS design, signing/striping layouts, temporary traffic control plans (TCPs), and PS&E packages using AutoCAD and/or MicroStation.
• Apply MUTCD, Caltrans, NACTO, FHWA, and local agency standards to analysis findings and design solutions.
• Collaborate with engineers and planners to integrate bicycle, pedestrian, transit, accessibility, and safety enhancements into projects.
• Support quality control, constructability review, and coordination with clients and partner disciplines.
• Mentor junior staff in traffic analysis, design best practices, and project delivery.
• Implement best practices and process improvements to enhance project efficiency and consistency.
• Support traffic group leadership with business development, scopes, fee estimates, proposals, and client coordination.

Qualifications

• 5+ years of experience as a traffic engineer in a consulting environment or public entity.
• Bachelor's degree in Civil Engineering.
• Proficiency in AutoCAD and/or MicroStation.
• Proficiency in Synchro, Vistro, VISSIM, SIDRA, and/or similar traffic analysis tools.
• Strong understanding of traffic analysis, traffic operations, multimodal safety, and engineering design principles.
• Demonstrated experience preparing Plans, Specifications, and Estimates packages for traffic design-related projects, including traffic signals, signing and striping, TCPs, ITS, and/or street lighting.
• Able to manage competing priorities and multiple simultaneous projects with cross-functional teams.
• Strong written and oral communication and presentation skills.
• Working knowledge of MS Excel, Word, MS Project, or equivalent tools.

Preferred

• Registration as a Professional Engineer in the state where the position is based, or ability to obtain within twelve months of hire.
• PTOE or California T.E. certification a plus.
• Transportation planning and operations experience, including signal timing, multimodal corridor studies, safety action plans, Vision Zero initiatives, or Safe System projects.
• Experience in active and non-motorized transportation planning and design.
• Experience supporting traffic operations analysis using Synchro, VISSIM, Vistro, SIDRA, or similar tools.
• Proficiency in AGI and/or Visual Lighting.
• Experience supporting grant-funded or federally funded safety and mobility projects.
• Active participation in industry-relevant professional associations and committees.