Jobs and Careers
EX

Principal Engineer

EXP
St. Louis, MO, United States, United Statespart_timeVerifiedPosted 15 May 2025

About the role

At EXP, we’re driven to provide innovative solutions for the world’s built and natural environments. As a team of engineers, architects, designers, scientists, creators and a community of professionals, we bring diverse and talented people together to solve the world’s most complex challenges. Here, you join a team that leverages differences, harnesses their entrepreneurial spirit in an employee-owned company, that believes diversity is what gives us strength, seeks sustainable results and shares ambitions for each other, our clients and the communities we are part of and serve. To be a part of EXP means to have your own experience, while staying connected to a global network of professionals, who believe we are a part of something bigger. Together, we are EXP. 

 

Are you ready to design your future?

 

Be our next Principal Engineer!

 

Your work environment at EXP

EXP’s Infrastructure & Transportation Practice provides comprehensive planning, design and construction engineering services for all types of roadway, bridge, water resource, rail, transit and aviation projects. With a unique multidisciplinary team approach, we have a history of successfully delivering some of the most complex infrastructure projects within the Midwest region.  We are currently looking to establish and grow a transportation and infrastructure team in the St. Louis region and are seeking a Principal Engineer for our St. Louis office. The ideal candidate will work directly under the supervision of the Practice Manager and focus on delivering transportation projects for a wide variety of clients within Missouri and southern Illinois.

 

What a day at EXP has in store for you

  • Work with the Practice Manager to help establish, grow and mentor a team of technical experts to execute a wide variety of infrastructure and transportation projects in the St. Louis and southern Illinois region.
  • Act as Project Manager or QA/QC Engineer for projects that fit your skill sets.
  • Coordinate staff required for internal project teams, including directing, coordinating and reviewing work by others.
  • Perform project management duties such as oversee and approve invoicing/billing and manage project scope and secure change orders as necessary, chase A/R and provide internal reporting as may be required.
  • Work with staff within Infrastructure & Transportation and other practices groups, as necessary, to execute project delivery.
  • Assist in the preparation of proposals and presentations for project pursuits.
  • Help recruit other qualified staff as required.
  • Identify and develop client relationships in Missouri (St Louis region) and southern IL.

 

What your experience looks like

  • BS in Civil Engineering from an Accredited University, advanced degrees are not required, but preferred.
  • 20+ years of progressively responsible relevant experience.
  • Licensed PE in IL required and MO desired.  Ability to obtain licensure in multiple states desired.
  • Demonstrated ability to perform QA/QC and constructability reviews.
  • Excellent interpersonal, verbal and written communication skills.
  • Strong leadership, project management skills and the ability to work in a team environment.
  • Ability to mentor engineering staff.
  • Ability to work in an office environment as well as remotely and coordinate with staff from a diverse office geography.
  • Ability to develop client relationships and assist in business development and proposal development.
  • Represent EXP in relevant local professional organizations.

 

Our story

With a mission to understand, innovate, partner and deliver, EXP provides engineering, architecture, design and consulting services to the world’s built and natural environments.

Our heritage dates back to 1906, when the earliest of EXP’s predecessor companies started its engineering infrastructure practice. Today, thousands of creative professionals across EXP work together to deliver extraordinary experiences year after year.

What makes us different

The passion, enthusiasm, diversity and industry-leading capabilities of our employees make us who we are. We’re committed to providing a challenging work environment that cultivates career growth, encourages creativity and rewards excellence.

Find out more about life at EXP by visiting www.exp.com.

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Company

EXP

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