Senior Traffic Design Engineer, Professional Engineer - MOT and Signing

Mannik Smith Group; Saint George (UT); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

Generous paid time off

401(k) with 50% match

Professional development opportunities

Paid professional organization membership

Job summary

Mannik Smith Group, located in St. George, UT, is seeking a Senior Traffic Design Engineer to lead complex transportation projects. The ideal candidate will bring expertise in Maintenance of Traffic (MOT) planning, design, and compliance across multidisciplinary teams.

This full-time position offers competitive compensation between $120,000 - $160,000 annually, alongside comprehensive benefits including paid time off and a 401(k) match. Candidates will thrive in a collaborative environment focused on delivering high-quality traffic control and signing plans.

Qualifications

• 8+ years of experience in traffic with a focus on signing and MOT.
• Experience in roadway design is preferred.
• Relationships with DOT agencies are highly preferred.

Responsibilities

• Manage and deliver analysis, design, and preparation of MOT phasing strategies.
• Serve as technical lead on traffic design assignments.
• Prepare and oversee technical reports and construction plans.

Skills

Traffic design expertise

Communication skills

Project management

Mentoring

Education

Bachelor’s degree in civil engineering

Professional Engineering (PE) license

Tools

MicroStation OpenRoads

AutoCAD Civil 3D

SignCAD

Synchro/SimTraffic

Vistro

Vissim

Job description

Senior Traffic Design Engineer, Professional Engineer – MOT and Signing

Department: Transportation

Employment Type: Full Time

Location: St. George, UT

Compensation: $120,000 - $160,000 / year

Description

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.

What are the core responsibilities for the role?

• 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.

Qualifications, Skills, and Competencies:

• 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

Why would a candidate want this job?

At Horrocks, you can expect a competitive base salary and award‑winning benefits. Including, but not limited to:

• Medical, dental, vision, life, and disability insurance
• Generous paid time off
• 401(k): 50% match of contribution up to 6%
• Professional development opportunities including in-house training
• Paid professional organization membership and professional licensure

For more information, visit our website at www.horrocks.com

Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status, sexual orientation, gender identity, or any other protected characteristic.

We provide fair and equal treatment to all candidates, including reasonable accommodations for qualified individuals. If you require an accommodation during the application process, please email us at [e-mail] and include your name, the job title, and the location of the position you are applying for. Our team will respond as promptly as possible.