Traffic Engineer - Data-Driven Design & Safety Lead

Maricopa County; United States; On-site; USD 90,000 - 133,750; Full time

Benefits offered by this job

Tuition reimbursement

Work-life balance

Healthcare

Child care

Vacation time

Wellness program

Arizona State Retirement System

Job summary

Maricopa County is seeking a Traffic Engineer to lead planning, design, analysis, and review of a variety of traffic engineering projects. You will apply advanced technical expertise to improve traffic flow, roadway safety, and data‑driven design decisions across the county's transportation network.

Your role includes preparing and reviewing complex studies and designs, mentoring junior engineers and consultants, and guiding staff on traffic engineering issues while collaborating with leadership

Qualifications

• Two years of civil engineering experience.
• Bachelor’s degree in Civil Engineering or a related field.
• Registration as a Professional Engineer (PE) or eligibility to obtain Arizona registration within six months.
• Valid Arizona driver’s license by the time of hire.
• Experience in traffic engineering, evaluating design plans, interpreting and analyzing data, and writing technical reports.
• Knowledge of MUTCD, AASHTO, and national guidelines.
• Experience with traffic modeling software, including Synchro.
• Experience using MicroStation/AutoCAD.

Responsibilities

• Prepare and review complex traffic engineering plans for high‑complexity projects (signals, markings, signing, intersections) per standards.
• Develop design concepts, review studies, and recommend countermeasures with engineering judgement.
• Supervise staff/consultants and lead the quality control process in design and review.
• Compile, interpret, and analyze volume, speed, crash, delay data using Synchro and tools.
• Deliver projects within schedules and budgets.
• Meet with staff and the public to communicate alternatives and mitigation measures.
• Provide technical guidance on traffic engineering issues as needed.
• Other duties as assigned.

Skills

Traffic engineering

Data interpretation

Technical reporting

Education

Bachelor's degree in Civil Engineering

PE licensure or eligibility

Tools

Synchro

MicroStation/AutoCAD

Job description

Maricopa County is seeking a Traffic Engineer to lead planning, design, analysis, and review of a variety of traffic engineering projects. You will apply advanced technical expertise to improve traffic flow, roadway safety, and data‑driven design decisions across the county's transportation network.

Your role includes preparing and reviewing complex studies and designs, mentoring junior engineers and consultants, and guiding staff on traffic engineering issues while collaborating with leadership