Traffic Engineer

Maricopa County; Phoenix (AZ); On-site; USD 90,000 - 134,000; Full time

Benefits offered by this job

Tuition reimbursement

Exceptional work-life balance

Growth opportunities

Low-cost healthcare

Job summary

Maricopa County Transportation seeks an experienced Traffic Engineer to lead planning, design, analysis, and review of traffic projects. You will apply advanced technical expertise to improve traffic flow, roadway safety, and data-driven design decisions across the county network.

You will prepare and review complex studies such as signal layouts, intersection improvements, signing and pavement marking plans, and safety enhancements, while guiding junior engineers and coordinating with partners

Qualifications

• Two years of civil engineering experience.
• Bachelor's degree in Civil Engineering or related field.
• Registration as a Professional Engineer (PE) by the Arizona State Board of Technical Registration, or by another state with ability to obtain Arizona registration within six months of employment.
• Must possess, or be able to obtain, a valid Arizona Driver's license by time of hire.

Responsibilities

• Prepare and review traffic engineering plans for high-complexity projects, including signals, pavement marking, and signing.
• Develop complex project design concepts, review studies and analyses, and recommend countermeasures.
• Supervise staff/consultants and lead quality control in design and review phases.

Skills

Civil engineering basics

Data interpretation

Communication

Education

Bachelor's degree in Civil Engineering

PE registration or eligibility

Tools

Synchro

MicroStation/AutoCAD

Job description

Posting Date

07/28/26

Application Deadline

Open Until Filled

Pay Range

$90,000 - $133,750 annually

Salary offers are based on the candidate's equivalent experience and internal equity with other employees within the same job classification. The position is not eligible for overtime compensation.

Job Type

Unclassified

Department

Transportation

About the Position

As a Traffic Engineer in the Traffic Engineering Branch, you will lead the planning, design, analysis, and review of a variety of traffic engineering projects. You will apply advanced technical expertise to improve traffic flow, enhance roadway safety, and support data-driven design decisions across Maricopa County's transportation network.

In this role, you will prepare and review complex traffic engineering studies and designs, such as traffic signal layouts, intersection improvements, signing and pavement marking plans, and safety enhancement projects. You will also provide guidance and mentorship to junior engineers and consultants, while coordinating with internal and external partners to deliver projects aligned with MCDOT's goals.

This position is ideal for experienced Traffic Engineering professionals passionate about applying innovative traffic engineering practices to shape safe, efficient, and sustainable transportation solutions for Maricopa County.

About Us

We value your time. The time with your family. The time you spend on the road. And the time you spend making a difference. At the Maricopa County Department of Transportation (MCDOT), we provide connections that improve people's lives. By combining innovative technologies with the vast talent of our employees, we plan for future needs and operate a transportation system with the community in mind. Are you interested in contributing to the community in which you work, live, and play? Then join our team and help us build connections.

Proud to Offer

• Work with a greater purpose
• Tuition reimbursement
• Exceptional work-life balance
• Opportunities for growth and development within Maricopa County
• Low-cost, high-value healthcare for you and your qualifying dependents
• Child care benefits, including access to our on-site center, Maricopa County Kids Club, dedicated to serving Maricopa County families
• Paid vacation, sick time, and parental leave
• Extensive wellness program, including an incentive
• Enrollment in the Arizona State Retirement System, a defined retirement benefit requiring an 11.98% per paycheck contribution rate that includes a 100% employer match on Day 1
• Want to learn more about the County's Qualifying and Compensation Philosophy? Follow this link to learn more! Work With Us | Maricopa County, AZ

We Require

• Two years of civil engineering experience
• Bachelor's degree in Civil Engineering or a related field
• Registration as a Professional Engineer (PE) by the Arizona State Board of Technical Registration, or by the technical board of another state, with the ability to obtain Arizona registration within six months of employment

Other Requirements

Successful candidates must currently possess, or have the ability to obtain, a valid Arizona Driver's license by the time of hire

We Also Value

• Experience in traffic engineering
• Experience in reviewing engineering design plans
• Experience in interpreting and analyzing data and writingtechnical reports
• Knowledge of traffic engineering practices and procedures
• Familiar with the latest versions of the Manual on Uniform Traffic Control Devices (MUTCD), A Policy on Geometric Design of Highways and Streets (AASHTO), and National Highway and roadway design guidelines and standards
• Experience with traffic modeling software, including Synchro
• Experience using MicroStation/AutoCAD

Job Contributions

• Prepare and review traffic engineering plans for projects of high complexity, including traffic signals, pavement marking and signing, intersection improvements, and low-cost safety improvement projects, in accordance with Maricopa County and National standards and guidelines
• Develop complex project design concepts and criteria, review complex traffic engineering studies and analysis, and make recommendations for countermeasures, exercising engineering judgement
• Supervise and review the work of staff, contractors, or industry specialists/consultants as needed; lead the quality control process in the design and review phases of traffic engineering projects, including reviewing engineering reports, project plans, cost estimates, and special provisions for projects
• Compile, interpret, and analyze volume, speed, crash, delay, and queuing data, and conduct analysis using Synchro and other tools
• Deliver projects focused on achieving the Division goals and objectives within the schedules and budgets
• Meet with staff at various levels, including leadership, engineers, contractors, and the public, to clearly communicate traffic engineering alternatives and mitigation measures
• Provide technical guidance to staff, departments, the regulated community, consultants, attorneys, other regulatory agencies, and the public regarding traffic engineering issues as needed
• Other job duties as assigned

Working Conditions

• This position requires the employee to be in the office/field or customer-facing for all hours worked
• Exerting up to 10 pounds occasionally or negligible weights frequently; sitting most of the time
• Position is typically office or administrative work and is not substantially exposed to adverse environmental conditions

Selection Procedure

• Consideration will only be given to candidates who submit online applications
• Candidates will be contacted primarily through email and their Workday online application profile
• Must pass a pre-employment background and/or fingerprint investigation as required by statute or policy, including drug and alcohol testing requirements for positions designated as safety-sensitive

Maricopa County is an equal opportunity employer and is committed to providing equal employment opportunities to all applicants. If you require a reasonable accommodation during the application process or to perform the essential functions of the position under the Americans with Disabilities Act (ADA), please contact [e-mail] to initiate the interactive process.