Senior Traffic Engineer

Senior Traffic Engineer | Technical Lead

RETTEW is seeking a Senior Traffic Engineer | Technical Lead to join our Transportation team and help guide the technical delivery and continued growth of our traffic engineering services.

This opportunity is designed for an experienced traffic engineer who wants to remain actively involved in complex technical work while expanding their influence across projects, teams, and client relationships.

You will lead and review traffic engineering analyses, studies, designs, and technical deliverables while serving as a trusted resource for clients, project teams, and developing professionals. You will also help establish technical approaches, strengthen quality standards, mentor staff, and solve complex transportation challenges.

Traffic engineering professionals can develop expertise across different types of projects and services. You do not need to have done everything. We are looking for strong traffic engineering fundamentals, Pennsylvania project experience, professional analysis and modeling experience, sound technical judgment, and demonstrated ability to guide the work of others.

Work Environment

Workplace Designation: Hybrid

Locations: Pittsburgh, Lancaster, Mechanicsburg, or Lehigh Valley, Pennsylvania

This position combines regular in-office collaboration with remote-work flexibility, focused technical work, multidisciplinary project coordination, and occasional field, client, or agency activities.

What You'll Do

As a Senior Traffic Engineer | Technical Lead, you will guide the technical delivery of traffic engineering assignments while helping project teams develop practical, data-informed solutions.

You will establish technical approaches, perform and oversee complex analyses, review project deliverables, resolve technical challenges, and help ensure work meets applicable standards and client expectations. You will collaborate closely with Project Managers, engineers, designers, clients, agencies, and other disciplines throughout project delivery.

You will also help strengthen RETTEW's traffic engineering capabilities by mentoring staff, sharing technical knowledge, improving processes, and contributing to proposals and strategic pursuits.

• Serve as a Technical Lead on traffic engineering projects, providing technical direction, oversight, and quality control.
• Establish appropriate methodologies for complex traffic engineering assignments and guide project teams through execution.
• Lead and review traffic impact studies, operational analyses, signal warrant analyses, traffic signal designs, corridor studies, safety evaluations, and access management assignments.
• Evaluate intersection, corridor, and network performance using accepted traffic engineering principles and professional analysis tools.
• Develop practical recommendations for improving traffic operations, mobility, access, and safety.
• Prepare and review calculations, models, plans, specifications, technical reports, and other project deliverables.
• Confirm that technical work is accurate, consistent, constructible, and compliant with applicable standards and project requirements.
• Interpret and apply applicable PennDOT, Pennsylvania Turnpike Commission, MUTCD, AASHTO, municipal, and other agency standards and requirements.
• Coordinate with PennDOT, municipalities, metropolitan planning organizations, clients, and other reviewing agencies.
• Collaborate with Project Managers to align technical scope, schedule, budget, staffing, and deliverable expectations.
• Advise clients and internal teams on traffic operations, safety, permitting, design, and project-delivery considerations.
• Identify complex technical or project-delivery challenges and guide teams toward practical solutions.
• Mentor engineers and designers through technical coaching, project assignments, and constructive review.
• Help develop and maintain technical standards, tools, templates, and quality-control practices.
• Support project scopes, technical approaches, level-of-effort estimates, proposals, and selection interviews.
• Contribute technical insight to client relationships, strategic pursuits, and the continued growth of RETTEW's traffic engineering services.
• Stay current with evolving traffic engineering standards, tools, technologies, and industry practices.

What We're Looking For

Required

• Bachelor's degree in Civil Engineering or a related engineering discipline.
• Active Professional Engineer license in Pennsylvania, or an active PE license in another state with the ability to obtain Pennsylvania licensure.
• At least eight years of progressive professional experience in traffic engineering.
• Demonstrated experience leading the technical delivery or review of traffic engineering work.
• Professional experience with traffic operations, traffic impact, signal, corridor, safety, access, or related traffic engineering assignments.
• Professional experience using traffic analysis or simulation software such as Synchro/SimTraffic, HCS, VISSIM, or comparable tools.
• Experience preparing and reviewing engineering calculations, analyses, models, plans, reports, specifications, or other technical deliverables.
• Working knowledge of applicable traffic engineering standards and agency requirements.
• Ability to establish technical approaches, evaluate complex information, and exercise sound engineering judgment.
• Ability to communicate technical information clearly to clients, agencies, Project Managers, and technical staff.
• Experience providing technical direction, coaching, or review to other professionals.
• Strong written and verbal communication skills.
• Ability to collaborate effectively across multidisciplinary project teams.
• Ability to manage competing assignments, priorities, and deadlines.

Additional Experience We Value

Candidates do not need experience in every area listed below. Traffic engineers often develop deeper expertise in particular services, project types, or client markets, and we value both specialized experience and broad technical exposure.

• Professional Traffic Operations Engineer certification.
• PennDOT or Pennsylvania Turnpike Commission project experience.
• PennDOT ECMS and Pennsylvania project-delivery processes.
• Traffic impact studies or traffic impact analyses.
• Traffic operations and capacity analysis.
• Traffic signal warrant analysis.
• Traffic signal design.
• Intersection improvement projects.
• Corridor or network-level studies.
• Traffic safety studies.
• Access management.
• Roundabout analysis or design.
• Traffic data collection and evaluation.
• Maintenance and protection of traffic.
• Synchro/SimTraffic, HCS, VISSIM, SIDRA, Highway Safety Software, or other traffic-analysis platforms.
• OpenRoads Designer or MicroStation.
• Coordination with municipalities, metropolitan planning organizations, utilities, or other project stakeholders.
• Formal mentoring, coaching, supervision, or staff-development responsibilities.
• Development of project scopes, schedules, budgets, or level-of-effort estimates.
• Proposal development and selection interviews.
• Client relationship management or business-development support.
• Development of technical standards, templates, tools, or quality-control processes.

What This Opportunity Offers

At RETTEW, you will have the opportunity to remain closely connected to technical work while influencing how traffic engineering services are delivered across projects and teams.

You'll have opportunities to:

• Lead complex traffic engineering assignments and help establish project-specific technical approaches.
• Influence technical standards, tools, processes, and quality practices.
• Serve as a trusted technical resource for clients, agencies, Project Managers, and internal teams.
• Work across intersection, corridor, safety, signal, access, and network-level assignments.
• Collaborate with multidisciplinary transportation and infrastructure professionals.
• Help solve complex transportation challenges with practical, data-informed solutions.
• Mentor engineers and designers and help strengthen the technical capabilities of the team.
• Expand your influence across project delivery, client relationships, and practice growth.
• Contribute to proposals, strategic pursuits, and the continued development of RETTEW's traffic engineering services.
• Continue developing as a senior technical leader without having to move away from meaningful engineering work.
• Share in RETTEW's long-term success through our Employee Stock Ownership Plan (ESOP).

About RETTEW

RETTEW is a 100% employee-owned engineering and consulting firm providing multidisciplinary services across transportation, land development, water and wastewater, environmental and geotechnology, energy, surveying, and facilities and construction.

Our culture is grounded in our core values Act Like an Owner, Value Relationships, and Exemplify Excellence. Our employee-owners collaborate across disciplines to solve complex challenges, deliver meaningful results