Senior Traffic Design Engineer, Professional Engineer - MOT and Signing

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.

Department: Transportation

Location: St. George, UT

Compensation: $90,000 - $125,000 / year

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. The role serves as a project manager, technical discipline lead, and collaborator with clients and public agencies, guiding internal teams to deliver high‑quality, compliant, and effective MOT strategies. The position supports our Utah offices and offers opportunities to support other western United States offices.

• 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 Micro Station Open Roads, AutoCAD Civil 3D, SignCAD, or other applicable software common to the field of transportation engineering.
• Hands‑on experience with Synchro/Sim Traffic, 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.

• 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.

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.