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Terracon Senior Administrative Staff in St. Louis, Missouri


Service Line:

Office Management/Administration

Office Name:

St. Louis

Job Description:

Do you enjoy helping others? Are you seeking a leading role in office administration? If so, this might be your opportunity! After 14 years, our St. Louis office is celebrating the retirement of our office administrator and seeking their replacement. We value caring, courage, curiosity, excellence, integrity, and prosperity. Working together, these values lead us to be the best at people and innovation. If this rings true with you and you would like to be part of our family, please apply!

You will be a good fit for this job if…

You have a collaborative and proactive leadership approach.

You have the ability to lead by example in helping the team achieve their goals.

You enjoy innovative and new approaches to processes to find efficiencies and enhance the credibility of the role.

You take pride in providing great customer service.

You enjoy working for an organization that is growing.

You enjoy working for a company that cares about employees and wants to create a great work environment.

Senior Administrator

The Senior Administrator is responsible for managing the day-to-day operational, administrative, and fiscal activities of the office. These responsibilities may include administrative assistance, purchasing, fleet management, and facilities management. In addition, you will plan and develop systems and procedures to improve the operating quality and efficiency of the office. With limited supervision from the office manager, you will regularly exercise independent judgment in administration duties of a confidential nature and perform more responsible department level administrative functions.

Essential Functions and Duties:

  • Provide Human Resources support for the office by serving as the liaison with the corporate office and the St. Louis office (Corporate Services Representative – CSR).

  • Ensure routine company administrative policies are followed by office personnel such as timesheets, expense reports, purchasing, etc.

  • Evaluate department administrative processes. Recommend and coordinate needed changes based on process analysis.

  • Oversee use of office facilities and equipment and make requests for additional equipment as needed.

  • Manage invoicing and financial records for the office. Responsible for invoicing, review of aged WIP, accounts payable, receivables, and collections.

  • Secure and oversee vendors for building maintenance. Communicate issues with office manager and corporate facilities manager.

  • Develop an understanding of project-related risk. Be familiar with project liability and company risk policies.

  • Participate in safety leadership efforts for the office. Responsible for creating and modeling a safe work environment.

  • Engage in business community through civic and/or professional organization involvement for the purpose of improving client relationships.

  • Communicate and team with other supervisors and managers on assignments and/or tasks.

  • Regularly communicate with the Office Manager to provide updates on building, administrative and financial activities.

  • Manage records management to maintain compliance with Terracon policies.


  • Bachelor’s degree and 10 years related experience or, in lieu of Bachelor’s degree, 14 years in related experience. AEC experience preferred.



Requisition ID:


Posting Title:

Senior Administrator

Employment Type:

Regular, Full Time

City, State (Office Location):

St. Louis, MO

About Terracon:

Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Terracon currently has more than 5,000 employees in more than 150 offices with services available in all 50 states. Terracon’s growth is due to valued employees exceeding expectations in client service and growing their careers with new and exciting opportunities in the marketplace.

Terracon’s vision of “Together, we are best at people” is demonstrated through our excellent compensation and benefits package. Based on eligibility, role and job status, we offer many programs including medical, dental, vision, life insurance, 401(k) plan, paid time off and holidays, education reimbursement, and various bonus programs.

EEO Statement:

Terracon is an EEO employer. We encourage qualified minority, female, veteran and disabled candidates to apply and be considered for open positions. We do not discriminate against any applicant for employment, or any employee because of race, color, religion, national origin, age, sex, sexual orientation, gender identity, gender, disability, age, or military status.

Job Category:


Terracon's COVID-19 Safety Response:

Committed to Our Employee Safety!

Terracon is passionate about your safety before, during, and after the COVID-19 pandemic. As Terracon continues to move forward and grow through this time, we are continuing to take every precaution to ensure the safety of our employee-owners. If you are as committed to your success as we are committed to your safety, then Terracon is the company for you!

Our goal has not changed. For Terracon, our guiding principle has been and will continue to be the safety of our employee-owners. It’s that simple. We want our employees to be able to work safely in every situation and go home safely each night. As we continue our vision of being “Best at People,” here are some of the things Terracon is doing to safeguard every employee-owner:

  • On-going communication with ALL employee-owners on a dedicated COVID Response page, and a portal for their families to have access to resources as well

  • Requiring specific COVID-19 Pre-Task Safety Planning Protocols for all tasks and projects

  • Empowering employees to speak up and say “no” to working in unsafe conditions

  • Providing an additional 40 hours of sick leave to anyone impacted by COVID-19, including those impacted by daycare and school closures

  • Offering voluntary reduced work schedule for anyone needing extra time to care for others

  • Load leveling work assignments across regions to maintain high productivity and chargeability

  • Ensuring proper PPE and sanitation on all project sites by providing field employee-owners with mobile hand washing stations and supplies, masks, and sanitizing kits

  • Utilizing technology for more remote work opportunities and innovation using everything from video conferencing to drones

  • Following all CDC guidelines including social distancing on job sites, in offices, and in our labs

  • Implementing a stand-by leave program to ensure our employees continue service and health insurance benefits during regional work shortages

If your passion lies in working with a company that truly cares for your safety, and if you’re interested in belonging to a 100% employee-owned organization that will help you grow and quickly progress in your career, consider Terracon and apply today!