Trilon Group

Infrastructure consulting for transportation and water

Senior Traffic Design Engineer - Professional Engineer, MOT and Signing

Transportation EngineeringUpdated on Nov 13

Full-timeSt. George, UT, USA$120k - $160k /yr

About the Job

Requirements

A bachelor's degree in civil engineering from an accredited college or university is required.
A Professional Engineering (PE) license is required.
At least 8 years of professional traffic experience focused on signing and Maintenance of Traffic (MOT) is required.
Proficiency with MicroStation OpenRoads, AutoCAD Civil 3D, SignCAD, or other applicable transportation engineering software is required.
Strong written, verbal, and interpersonal communication skills are required, along with the ability to manage multiple projects, meet schedules and budgets, and maintain positive client relationships.
Ability to train and mentor less experienced staff in design and project delivery is required.

Responsibilities

Manage and deliver analysis, design, and preparation of Maintenance of Traffic (MOT) phasing strategies, signing, striping, and traffic control plan sheets for transportation projects, including phased construction, detours, and temporary traffic control.
Serve as technical lead on mid- to large-scale traffic design assignments, ensuring quality control and compliance with the Manual on Uniform Traffic Control Devices (MUTCD), American Association of State Highway and Transportation Officials (AASHTO), Department of Transportation (DOT), and applicable agency standards.
Prepare and oversee the development of studies, technical reports, construction plans, specifications, and estimates from concept through final delivery.
Coordinate with clients, public agencies, project stakeholders, and multidisciplinary internal teams to deliver transportation projects.
Manage staff assignments, workloads, mentoring, and resource coordination across traffic and related disciplines.

Desired Qualifications

Design-Build and alternative delivery experience is preferred.
Hands-on experience with Synchro/SimTraffic, Vistro, and Vissim is preferred.
Roadway design experience is preferred.
Experience and relationships with DOT agencies are highly preferred.

At Horrocks, we believe the best work comes from companies with values, that our people are our greatest resource, and that we have a responsibility to the communities where we live and work.
We are seeking an experienced Senior Traffic Design Engineer to plan, manage, and deliver complex transportation projects with a focus on Maintenance of Traffic (MOT) and Signing/Pavement Marking. This role is suited for a seasoned professional who brings strong technical expertise, sound judgment, and a collaborative leadership style on multidisciplinary project teams. This position will serve as a project manager, technical discipline lead, working directly with clients and public agencies while guiding internal teams to deliver high-quality, compliant, and effective MOT strategies.

The ideal candidate brings deep technical expertise, leadership experience, and a proven ability to deliver high-quality traffic control and signing plans in compliance with applicable standards and agency requirements.

This position will support our Utah offices but will have opportunities to support other offices throughout the western United States.

Manage and deliver analysis, design, and preparation of MOT phasing strategies, signing, striping, and traffic control plan sheets for transportation projects, including phased construction, detours, and temporary traffic control.
Serve as technical lead on mid- to large-scale traffic design assignments, ensuring quality control and compliance with MUTCD, AASHTO, DOT, and applicable agency standards.
Prepare and oversee the development of studies, technical reports, construction plans, specifications, and estimates from concept through final delivery.
Coordinate with clients, public agencies, project stakeholders, and multidisciplinary internal teams to deliver successful transportation projects.
Manage staff assignments, workloads, mentoring, and resource coordination across traffic and related disciplines.

Bachelor’s degree in civil engineering from an accredited college or university
Professional Engineering (PE) license required
8+ years of professional experience in traffic with a focus on signing and MOT
Design-Build and alternative delivery experience preferred
Proficiency with MicroStation OpenRoads, AutoCAD Civil 3D, SignCAD, or other applicable software common to the field of transportation engineering
Hands-on experience with Synchro/SimTraffic, Vistro, and Vissim preferred
Experience in roadway design is preferred
Experience and relationships with DOT agencies are highly preferred
Strong written, verbal, and interpersonal communication skills, with the ability to manage multiple projects, meet schedules and budgets, and maintain positive client relationships.
Ability to train and mentor less experienced staff with design and project delivery
A desire to grow personally and professionally with each project while working in a team environment to create designs and drawings supporting our client’s overall project goals

About the Company

Trilon Group

Infrastructure consulting for transportation and water

Trilon Group provides infrastructure consulting in transportation, water, and municipal systems in the Mid-Atlantic region. It works by partnering with local governments, municipalities, and private clients to deliver planning, design support, and project management through fee-based engagements, expanding capabilities through alliances with firms like Rinker Design Associates and Wilson Engineers. The company differentiates itself with a platform-style growth approach backed by private equity and a People First culture focused on talent development. Its goal is to expand service offerings and market presence in the Mid-Atlantic by building scalable partnerships and using capital to support growth.

Company size: 51-200
Company stage: Growth Equity (Non-Venture Capital)
Total funding: $200M
Headquarters: Denver, CO
Founded: 2021

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