Senior Traffic Engineer

SE3, LLC

| Lisle, Illinois (Chicago Metro Area)

Job Type:

Full-Time Location:

Lisle, IL Experience Required:

8+

Years Compensation:

Competitive salary based on experience and qualifications $100,000 -145,000

Additional Compensation:

Year-End Performance Bonus Available Lead Traffic Engineering Projects. Build Client Relationships. Make an Impact. We are a respected transportation engineering and planning firm with offices in the Chicago, Dallas, and Austin metropolitan areas. We partner with public agencies, municipalities, and private-sector clients to deliver practical, effective transportation solutions that improve mobility, safety, and infrastructure performance. At SE3, we believe great engineering starts with great people. Our family-oriented culture emphasizes collaboration, professional development, responsive client service, and a healthy work-life balance. Our teams work closely across offices and disciplines to deliver high-quality projects and build lasting client relationships. We are seeking an experienced Senior Traffic Engineer to join our Chicago Metro team in Lisle, Illinois. This leadership opportunity is ideal for a traffic engineering professional who combines strong technical capabilities with project management experience, client relationship skills, and a passion for mentoring developing engineers. In this role, you will lead traffic studies and analyses, oversee traffic engineering design, manage client relationships, and help grow SE3's presence in the Chicago market. You will work on projects for major transportation agencies and municipalities, including the Illinois Department of Transportation (IDOT), the Illinois Tollway (ISTHA), Cook County, surrounding collar counties, and Chicago-area agencies. You will also have opportunities to collaborate with SE3's Kansas City, Dallas, and Austin teams and potentially support in-house assignments with agency clients. If you are ready to take the next step in your traffic engineering career while making a meaningful contribution to a growing transportation practice, we encourage you to apply! What You'll DoTraffic Engineering & Technical Leadership Lead and oversee traffic engineering studies, including traffic impact analyses, corridor evaluations, intersection operations assessments, and traffic safety studies. Conduct and review traffic modeling, capacity analyses, operational evaluations, and signal timing optimization. Prepare and review traffic signal timing plans, signal design documents, and roadway improvement plans in accordance with applicable agency standards. Apply relevant IDOT, Illinois Tollway, Manual on Uniform Traffic Control Devices (MUTCD), and Federal Highway Administration (FHWA) requirements. Use traffic analysis software such as Synchro and HCS to evaluate transportation operations and develop effective engineering solutions. Review technical analyses and deliverables for accuracy, quality, and compliance with project requirements. Identify operational and safety challenges and recommend practical, data-driven improvements. Project Management & Client Relationships Serve as project manager and primary client liaison for assigned traffic engineering and transportation planning projects. Establish and maintain strong relationships with public agencies, municipalities, private-sector partners, and other stakeholders. Manage project scopes, schedules, budgets, staffing, and technical deliverables. Coordinate internal teams, subconsultants, and multidisciplinary project partners. Communicate project progress, technical findings, and recommendations clearly and professionally. Support agency coordination and, when appropriate, provide in-house technical support to help clients advance projects efficiently. Team Leadership & Mentorship Provide technical guidance and oversight to junior engineers and technical staff. Review engineering analyses, calculations, reports, and design documents. Mentor team members and support their technical and professional development. Collaborate with colleagues across SE3's offices to share expertise and support regional and multi-market projects. Promote a collaborative environment focused on technical excellence, accountability, and client satisfaction. Business Development & Practice Growth Assist with proposal preparation, project pursuits, and client interviews. Contribute to technical approaches, scopes of work, staffing plans, and project strategies for new opportunities. Help identify opportunities to expand relationships with existing clients and develop new business. Support the continued growth and reputation of SE3's Chicago transportation practice. What We're Looking For We are seeking a technically strong, client-focused professional who can manage complex assignments, lead project teams, and contribute to the continued growth of our traffic engineering practice. Required Qualifications Bachelor's degree in Civil Engineering or a related field. Minimum of 8 years of experience in traffic engineering and/or transportation planning. Demonstrated experience leading traffic studies, traffic analyses, and transportation operations evaluations. Proficiency with traffic analysis software, particularly Synchro and HCS. Strong knowledge of MUTCD, IDOT, and FHWA standards and guidelines. Experience managing projects, coordinating technical teams, and delivering quality engineering work. Strong written and verbal communication skills. Ability to manage client relationships and communicate technical information effectively. Demonstrated analytical, organizational, and problem-solving skills. Professional Engineer (P.E.) license in Illinois or Missouri, or the ability to obtain the applicable licensure within a reasonable timeframe. Strongly Preferred Qualifications Direct experience working with IDOT and/or the Illinois Tollway (ISTHA). Familiarity with Cook County, Chicago-area agencies, and surrounding collar counties. Experience with traffic signal timing plans, signal design, corridor studies, and intersection evaluations. Experience serving as a project manager and primary client contact. Additional Preferred Qualifications Experience with VISSIM and/or SIDRA traffic modeling software. Experience working with the Missouri Department of Transportation (MoDOT). Professional Traffic Operations Engineer (PTOE) certification. Experience mentoring junior engineers and overseeing technical deliverables. Experience preparing proposals, participating in project pursuits, and supporting business development. Why Join SE3? At SE3, you'll have the opportunity to grow your career within a respected transportation engineering firm that values both professional achievement and personal well-being.

Leadership Opportunity:

Take ownership of significant traffic engineering projects and client relationships.

Meaningful Work:

Support transportation safety, mobility, and infrastructure improvements throughout Illinois and neighboring states.

Collaborative Culture:

Work with talented professionals across our Chicago, Kansas City, Dallas, and Austin offices.

Professional Development:

Mentor junior engineers while expanding your own technical and leadership capabilities.

Client Engagement:

Build lasting relationships with established public-sector agencies and private-sector partners.

Competitive Compensation:

Salary based on your experience, technical expertise, and qualifications.

Performance Bonus:

Opportunity to earn a year-end performance bonus.

Work-Life Balance:

Join a family-oriented firm committed to a supportive, collaborative work environment. Work Location & Travel This position is based in SE3's Chicago Metro office in Lisle, Illinois. Occasional project-related travel may be required, and collaboration with teams across other SE3 offices is an important part of the role. Ready to Take the Next Step? If you are an experienced traffic engineer who enjoys solving complex transportation challenges, leading projects, developing client relationships, and mentoring other professionals, we would love to hear from you. Join SE3, LLC, and help deliver practical transportation solutions that make a difference for the communities we serve.

SE3, LLC

is an equal opportunity employer.

Pay:

$100,000.00 - $145,000.00 per year

Benefits:

401(k) Dental insurance Health insurance Life insurance Vision insurance

Work Location:

In person