Traffic Engineer III

Trilon Group

Traffic Engineer III supporting sustainable transportation projects in Los Angeles. Lead traffic engineering analysis, design tasks, and safety studies.

Posted 7/30/2026full-timeLos Angeles • California • 🇺🇸 United StatesMid-LevelSenior💰 $100,000 - $130,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in traffic engineering, including traffic analysis, multimodal safety, and engineering design principles, while proficiently utilizing tools such as AutoCAD and Synchro. Capable of leading projects, mentoring junior staff, and collaborating with cross-functional teams to enhance project efficiency and deliver high-quality traffic design solutions.

Highest-signal resume keywords

Traffic EngineeringAutoCAD ProficiencyTraffic Analysis ToolsProfessional Engineer RegistrationMultimodal Safety Design

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Traffic AnalysisTraffic OperationsSignal TimingTraffic SimulationCost EstimationPlans, Specifications, and EstimatesTraffic Signal DesignStreet Lighting DesignITS DesignTemporary Traffic Control Plans

Soft Skills

Communication SkillsProject ManagementMentoringCollaborationProcess Improvement

Tools & Technologies

AutoCADMicroStationSynchroVistroVISSIMSIDRAMS ExcelMS WordMS ProjectAGI

Certifications & Qualifications

Professional Engineer RegistrationPTOE CertificationCalifornia T.E. Certification

Industry Keywords

MUTCDCaltransNACTOFHWAVision ZeroSafe System ProjectsActive Transportation PlanningNon-Motorized TransportationSafety Action PlansGrant-Funded Projects

About the role

Key responsibilities & impact

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.

Requirements

What you’ll need

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.
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

Comp & perks

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