Project Engineer - Transportation
HR Green
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St. Louis, MO · Posted March 23, 2026
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Where St. Louis, MO ranks
Where St. Louis, MO placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #9Best all-round cities for new graduates in the Midwest52 / 100 · of 20
- #9Cities hosting the most business conferences in the Midwest8 conferences · of 12
- #9Cities hosting the most legal services conferences4 conferences · of 17
- #11Best cities for government pay after cost of living$123k · of 18
- #11Best cities for entry-level jobs that want AI skills in the Midwest4% · of 52
- #12Best all-round cities for remote workers in the Midwest42 / 100 · of 20
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Pay compared with the market
This listing does not state pay. Across 323 open project engineer listings that state pay, the middle half runs $85,000 to $115,000 and the median is $99,500.
Listed pay is what employers advertise, not what people are paid.
How AI is used in this kind of work
AI use among civil engineers is little observed so far. Measured exposure for civil engineers: 1% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
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About the job
What if your next role gave you the opportunity to design transportation projects that directly impact how people move through their communities every day?
At HR Green, you play a key role in delivering transportation infrastructure that connects communities and supports long term growth. This role, based in St. Louis, offers the opportunity to work on a wide range of transportation projects to build your technical expertise, gain confidence, and expand your project ownership.
You will be part of a collaborative team environment where mentorship, development, and meaningful project experience are part of the day to day. You will have the opportunity to support and guide junior team members and work closely with Project Managers to deliver impactful transportation projects.
What You Will Be Doing
Design and deliver transportation projects including roadways, intersections, interchanges, and pedestrian infrastructure
Provide technical expertise and mentorship by responding to questions and supporting the development of junior engineers
Participate in quality reviews to ensure accuracy and compliance with established QA and QC processes
Take ownership of engineering tasks and project components while ensuring alignment with project goals and standards
Identify and help resolve technical related challenges through effective communication
Respond to contractor questions and support construction phase activities including addenda and project updates
Contribute to proposal development, including scope, schedule, and cost estimates when applicable
Interact directly with Clients with written, verbal, and in person communication
You Might Be a Great Fit If
You are a licensed Professional Engineer (PE) ready to grow into more complex, challenging work while continuing to apply your passion for hands-on design.
You enjoy working on transportation projects that have visible community impact
You thrive in a collaborative environment and value mentorship and team support
You are looking for a role that offers both structure and the opportunity to grow your independence
You are looking to advance your careers toward future Lead Engineer or Project Manager roles
What You Bring
Bachelors in civil engineering
Professional Engineer license in Missouri or ability to obtain within six months (MUST HAVE)
At least four years of experience in civil or transportation engineering design
Experience with roadway s , intersection, interchange, or pedestrian infrastructure design is preferred
Experience with tools such as Open Roads Designer, MicroStation, or Civil 3D
Proficiency with Microsoft Excel, Word, and PowerPoint
Strong technical communication skills, both written and verbal
Strong analytical and problem-solving skills with the ability to apply engineering principles to a variety of challenges
Valid driver’s license in your state of residence
Why HR Green
With a long-standing history of delivering infrastructure solutions that strengthen communities, HR Green offers the opportunity to work on meaningful projects while growing your career in a supportive and collaborative environment.
You will be part of a team that values development, technical excellence, and long-term success, with opportunities to expand your skills and take on greater responsibility over time.
If you have been looking for a role where you can continue to grow, contribute to impactful projects, and be part of a strong team, this could be worth a conversation.
Benefits
Not only does HR Green provide you with a place to grow, thrive, and enjoy your work, but we are also dedicated to delivering a comprehensive and multi-faceted benefits package. Visit our website for detailed total rewards information.
https://www.hrgreen.com/careers/total-rewards/
HR Green is proud to be an affirmative action/ equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or other classification protected by applicable federal, state or local law.