Senior Traffic Engineer

Competitive compensation and a collaborative, idea-driven work culture in Edison, NJ. In this Senior Traffic Engineer role with The LiRo Group, you will help expand and strengthen the firm’s transportation practice by leading technical traffic efforts across projects from early planning through construction.

What You’ll Do

As a task lead and technical authority on traffic-related assignments, you will deliver traffic engineering analyses and translate findings into practical plans that meet client and agency needs.

• Perform and review traffic engineering analyses, including capacity analysis, signal analysis, intersection evaluation, and corridor studies (including tools such as Synchro and HCS).
• Lead and oversee preparation of Maintenance & Protection of Traffic (MPT) and staging plans for bridge and roadway projects.
• Develop traffic control, signing, and pavement marking plans aligned with NJDOT, NJTA, NYSDOT, NYCDOT, and MUTCD standards.
• Support and lead traffic impact studies and operational improvement projects.
• Coordinate with structural and civil engineers to design staging solutions that are practical, cost-effective, and constructible.
• Participate in site visits and constructability reviews to evaluate existing traffic conditions.
• Provide technical support during construction administration.
• Assist with agency coordination and client engagement focused on traffic and work zone impacts.
• Contribute to proposals and qualifications packages to strengthen the firm’s transportation resume.

Required Qualifications

• Bachelor of Science in Civil Engineering or Bachelor of Science in Electrical Engineering (transportation focus preferred).
• 8–25 years of traffic engineering experience, including DOT project experience.
• NJ PE required; NY PE strongly preferred or ability to obtain.
• PTOE certification preferred.
• Demonstrated experience with NJDOT, NJTA, NYSDOT, or NYCDOT standards and procedures.
• Strong background in MPT/staging and work zone traffic control.
• Experience with traffic analysis software such as Synchro, HCS, VISSIM, or similar tools.
• Signal design and timing experience preferred.
• AutoCAD proficiency preferred; MicroStation experience is a plus.
• Ability to manage multiple assignments, mentor junior staff, and work as part of a team.
• Strong written and verbal communication skills.

Technologies

• Synchro, HCS, VISSIM
• AutoCAD, MicroStation
• MUTCD

Compensation and Work Authorization

Salary: USD 140,000 to 170,000 per year.

The selected candidate must be authorized to work in the United States. Visa sponsorship is not available for this role.

Growth Opportunity and Culture

This role supports a strategic initiative to expand The LiRo Group’s multidisciplinary transportation capabilities. You will help define processes, grow internal talent, and build a scalable traffic engineering group within a collaborative environment.

• Part of a multidisciplinary transportation expansion focused on long-term practice development.
• We believe in the power of collaboration and work to create a culture where employees can freely share ideas and see their contributions valued.