Senior Traffic Engineer

Weston & Sampson; Foxborough (MA); Hybrid; USD 115,000 - 130,000; Full time

Job summary

A leading engineering firm is seeking a Senior Traffic Engineer in Foxborough, MA, to manage and lead traffic engineering projects, including intersection analysis and traffic signal design. Qualified candidates will hold a bachelor's degree in Civil Engineering, a valid PE license, and extensive experience (10+ years) in transportation engineering. The role involves project management, client coordination, and mentoring junior staff. Salary range is $115,000 to $130,000 based on experience, and the position offers a hybrid work environment.

Qualifications

• 10+ years of progressive experience in traffic or transportation engineering.
• Strong knowledge of DOT Design Manuals, MUTCD, AASHTO standards.
• Proficiency in traffic modeling and simulation.

Responsibilities

• Lead and manage traffic engineering projects.
• Conduct safety assessments and intersection improvement studies.
• Provide mentorship and technical guidance to junior engineers.

Skills

Traffic engineering project management

Traffic modeling and simulation (Synchro, HCS, VISSIM)

Traffic signal design

Communication skills

Mentorship and leadership

Business development

Education

Bachelor’s degree in Civil Engineering

Active Professional Engineer (PE) license

Tools

Synchro

HCS

VISSIM

MicroStation

AutoCAD

Job description

Senior Traffic Engineer

Locations: US-MA-Foxborough | US-NH-Manchester | US-CT-Rocky Hill | US-MA-Reading

ID: 2026-3349 | # of Openings: 1 | Category: Engineering | Type: Regular Full-Time

Weston & Sampson is seeking a Senior Traffic Engineer in one of our New England offices to lead transformative transportation initiatives that enhance safety, mobility, and quality of life across communities throughout the Northeast. This is a senior-level opportunity for a motivated professional who thrives at the intersection of technical excellence, leadership, and client collaboration.

This is a unique opportunity to play a role in shaping the future of how people move— delivering innovative, data driven traffic and transportation solutions and strategic planning that support thriving, connected communities.

What you’ll do:

• Lead and manage traffic engineering projects including traffic operations studies, intersection and corridor analysis, and traffic signal design.
• Perform and oversee traffic modeling and simulation using tools such as Synchro, HCS, and VISSIM to support planning and design decisions.
• Develop detailed plans for traffic signals, signing and pavement markings, and traffic control in compliance with MUTCD, AASHTO, and state/local standards.
• Conduct safety assessments, intersection improvement studies, and access management evaluations to enhance roadway performance.
• Coordinate effectively with clients, DOTs, municipalities, MPOs, and subconsultants to ensure timely and successful project delivery.
• Provide mentorship and technical guidance to junior engineers and technicians, including QA/QC reviews to uphold quality standards.
• Support business development through proposal writing, scope definition, and cultivating strong client relationships.
• Stay informed on evolving transportation policies, standards, and emerging technologies impacting traffic operations, safety, and design.

What you’ll bring:

• Bachelor’s degree in Civil Engineering or a related field.
• Active Professional Engineer (PE) license in Massachusetts, Connecticut, New Hampshire or Rhode Island.
• PTOE certification is preferred.
• Minimum of 10 years of progressive experience in traffic or transportation engineering.
• Strong working knowledge of DOT Design Manuals, MUTCD, AASHTO, and relevant state DOT standards.
• Proficiency in Synchro, HCS, VISSIM, and MicroStation or AutoCAD; experience with TransModeler is a plus.
• Excellent communication and interpersonal skills, with proven experience working directly with clients and agency staff.
• Experience with ITS design, traffic signal timing, and system optimization is desirable.
• Familiarity with HSIP safety analyses and predictive analysis tools is a plus.
• Demonstrated ability to manage multiple projects and meet deadlines in a collaborative, fast-paced environment.

Salary: $115,000 - $130,000+ depending on experience

#LI-HYBRID

Weston & Sampson is an Equal Opportunity Employer. We embrace the rich perspectives and experiences that arise from people of different races, ethnicities, cultures, sexual orientation, gender identities, ages, socio-economic statuses, abilities, and religions, as well as valuable insight from other untapped groups within our Weston & Sampson family and the communities we serve.

Equal employment opportunity, including veterans and individuals with disabilities.