Traffic Engineer III

Compensation $100,000 - $130,000 per year Location Ontario, California Department Engineering Job Title Traffic Engineer III Description Alta is looking for a Traffic Engineer III to join our traffic group in our Ontario / Inland Empire office. In this role, you will support and lead traffic engineering analysis, safety and planning studies, and design tasks for sustainable transportation projects focused on making a positive impact on communities around the country. Day to Day 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. Required 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. Ability 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 Qualifications 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. Benefits Medical: PPO or HSA medical plans. Dental/Vision: PPO. Life Insurance: Alta pays 100% of the premium for life and AD&D, equal to your base compensation. 401(k): Alta provides a match up to 3%. PTO: 21 days accrued annually to start. Holidays: 11 total company paid holidays. Paid Parental Leave/Short‑Term Disability. Additional benefits: wellness reimbursement up to $800 annually, Alta Gets Around benefit of up to $900 annually, 5‑year travel award, and professional development opportunities. Flexible Schedule Alta offers a flexible, hybrid work schedule where most employees work from home three days per week. In‑office days support our collaborative culture, one of our core values. #J-18808-Ljbffr Alta Planning + Design