Senior Traffic Engineer

LJB Inc.; Columbus (OH); On-site; USD 114,000 - 140,000; Full time

Job summary

LJB Inc. is seeking a Senior Traffic Engineer to lead and expand our Transportation Practice in Ohio.

The role requires a PE license, PTOE certification, and 7–15 years of experience. You’ll perform traffic studies, signal design, and corridor analyses while managing clients and mentoring junior staff across Dayton, Cleveland, or Columbus offices.

Qualifications

• Bachelor's degree in civil engineering.
• P.E. license.
• 7 to 15 years’ experience.
• Experience with Synchro/SimTraffic, HCS, SIDRA, TransModeler, VISSIM.
• AutoCAD/MicroStation/Geopak/Open Roads Designer and Microsoft Office.
• Knowledge of the Highway Capacity Manual.

Responsibilities

• Conduct traffic impact studies and traffic operations analyses.
• Carry out safety studies and signal system design.
• Develop signal timing plans and maintenance of traffic.
• Address corridor studies and highway lighting design.
• Support project management, client relationships, and site visits.

Skills

Traffic engineering

Project management

Client relationships

Mentoring

Education

Bachelor's degree in civil engineering

P.E. license

Tools

Synchro/SimTraffic

HCS

SIDRA

TransModeler

VISSIM

AutoCAD

MicroStation

Geopak/Open Roads Designer

MS Office

Job description

Brief Description

Join a Growing National Engineering Firm Shaping the Future of Infrastructure! As a growing, forward-thinking firm, LJB Inc. is expanding our impact across the country by delivering innovative, community-focused engineering solutions. Founded in 1966, we specialize in civil and structural engineering, with additional expertise in geospatial, safety, and environmental services. Our broad technical capabilities and diverse client base have allowed us to deliver successful projects in all 50 states and several countries. Within our Transportation Practice, LJB has spent more than five decades designing infrastructure that connects people, supports communities, and improves quality of life. As a full-service team, we bring deep technical expertise and a collaborative mindset to every project, creating safe, efficient, and forward-thinking transportation solutions. We are currently seeking an experienced Senior Traffic Engineer to support and grow our Transportation Practice in one of our Ohio offices (Dayton, Cleveland, or Columbus).

Salary Range: $114,000 - $140,000 based upon experience, certifications, and regional market standards.

Benefits: View our 2026 Benefits Summary

Traffic Engineer Essential Functions

• Technical engineering responsibilities may include:
• Traffic impact studies
• Traffic operations analyses
• Safety studies
• Signal system design
• Signal timing plans
• Maintenance of traffic
• Pavement markings and signage
• Highway lighting design
• Corridor studies
• Willing to balance performing design work and assisting in sales efforts.
• Project/task and client management.
• Maintain client relationships.
• Occasionally visit work sites, monitoring project progress and reporting findings.
• Ability to meet all safety requirements if/when visiting a work site.
• Occasional travel may be required.
• Other duties as assigned.

Traffic Engineer- Essential Credentials

Required Qualifications Education:

• Bachelor's degree in civil engineering.
• P.E. license.
• 7 to 15 years’ experience.
• Experience with Synchro/SimTraffic, HCS, SIDRA, TransModeler, VISSIM,
• AutoCAD/MicroStation/Geopak/Open Roads Designer and Microsoft Office.
• Knowledge of the Highway Capacity Manual.

Preferred Qualifications

• PTOE license
• Experience with Travel Demand Modeling Software (TransCAD, CUBE), ArcGIS, SignCAD.
• Experience with ODOT and/or OH municipalities.

Core Skills

• Ability to work in a team setting collaboratively with a group of traffic, transportation, and site/civil engineers.
• Ability to mentor, direct activities and supervise work of other engineers.
• Ability to identify project issues and facilitate resolution.
• Ability to analyze situations and identify ways to improve efficiency.
• Ability to react quickly and calmly to high-pressure situations.

Why Join LJB?

This role offers the opportunity to take on meaningful traffic engineering work that directly shapes safer, more efficient transportation systems for communities across Ohio and beyond. As part of LJB’s growing Transportation Practice, you’ll contribute your technical expertise, collaborate with experienced professionals, and help deliver impactful infrastructure solutions while continuing to grow your career.

LJB Inc. is an equal opportunity employer and prohibits discrimination and harassment of any kind. We are committed to creating a diverse and inclusive workplace where all employees are valued, respected, and have the opportunity to succeed. Employment decisions are based on qualifications, merit, and business needs, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, genetic information, marital status, or any other protected status under applicable law. If you are a self-starting individual who wishes to join an established team that believes in excellence in the workplace, this opportunity is for you.

Keywords: Traffic Engineer, Senior Traffic Engineer, PTOE, PE, Transportation