Demo

Environmental Principal

ECS Group of Companies
St Louis, MO Full Time
POSTED ON 1/28/2026 CLOSED ON 3/28/2026

What are the responsibilities and job description for the Environmental Principal position at ECS Group of Companies?

Engineering Consulting Services (ECS) is seeking an experienced Environmental Prinicipal to join our team. This role ensure that overall goals related to quality and performance are achieved. Responsibilities for any one particular project are limited. Goal is to delegate to senior staff and step in when and where it is most useful. Principals are the problem solvers and the final reviewer for projects. The ideal candidate presents a positive customer service attitude and understanding of ECS Core Values.

Key Responsibilities

  • Actively mentor junior staff and support overall development of the team. Provide mentorship to Associate Principals as assigned.
  • Attend project meetings and provide solutions to technical and administrative issues as necessary
  • Market our services. Maintain and further develop the client database
  • Oversee project budgets and review change orders and invoices. Assist with collections efforts.
  • Training and oversight of subordinate staff members
  • Strong ability to prioritize tasks and meet project deadlines.
  • Oversee environmental projects. Assist junior staff with resolution of issues and training of field staff
  • Oversee the preparation and review of proposals and change orders
  • Oversee the preparation and review of environmental reports from junior staff.
  • Perform deliverable reviews in accordance with ECS Principal review policy
  • Host or attend project discussions with clients, follow up on reports to determine if there are questions
  • Assist senior staff with staffing decisions
  • Manage asbestos, lead-based paint, mold and indoor air quality assessments.
  • Supervise subordinate staff regarding work assignments to ensure properly trained and experienced personnel are assigned. Perform Principal oversight and review of projects in accordance with ECS Principal Policy. Ensure that deliverables are completed, and projects are closed out in accordance with ECS QA/QC policies and guidelines. Assist with client interaction/discussion regarding findings and conclusions of reports.
  • Extensive knowledge of federal, state and local environmental regulations and guidelines and their implications on findings and conclusions in studies.
  • Communicate with junior staff to direct field work performed by subcontractors and other ECS technicians and other field staff. Likely will require managing and/or performing multiple projects simultaneously.
  • Other duties as assigned.

Qualifications

  • Bachelor and/or Master of Science in Civil Engineering, Environmental Engineering, or other Engineering degree applicable to Environmental Consulting, Natural or Environmental Science, Geology, or other degree relevant to the practice of Environmental Consulting.
  • Minimum 12 years of related experience
    • 16 or more years of experience can meet education requirements
  • Licensed as at least one of the following: PE, PG, REM, CIH, CHMM, PWS, CSP, LSS, CIE, REPA, or CEM
  • Candidates must have achieved previous designation as Principal at ECS or hold similar designation from competitor firm
Skills And Abilities

  • Extensive knowledge of environmental principles and applications. Excellent Client Manager.
  • Extensive knowledge of permitting processes, environmental regulations, and environmental test methods
  • Review and provide feedback of field and laboratory testing by others. Perform training and/or corrective action as necessary.
  • Excellent ability to manage and develop new clients
  • Demonstrate established technical excellence, strong leadership skills, and an dedication to continuous professional development for their benefit and for the advancement of their field.
  • Principals provide leadership both through their example and through mentorship of staff.

ECS is currently ranked #66 in Engineering News-Record’s Top 500 Design Firms (April 2025), #144 in Engineering News-Record’s Top 200 Environmental Firms (October 2024) and #50 in Zweig Group’s Hot Firm List (June 2025).

ECS is an Equal Opportunity Employer. To learn more, click here.

Salary.com Estimation for Environmental Principal in St Louis, MO
$91,188 to $116,700
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Environmental Principal?

Sign up to receive alerts about other jobs on the Environmental Principal career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$151,655 - $195,046
Income Estimation: 
$193,656 - $254,517
Income Estimation: 
$60,404 - $76,911
Income Estimation: 
$70,164 - $92,397
Income Estimation: 
$70,164 - $92,397
Income Estimation: 
$86,269 - $122,182
Income Estimation: 
$86,269 - $122,182
Income Estimation: 
$101,791 - $133,116
This job has expired.
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at ECS Group of Companies

  • ECS Group of Companies Jackson, MS
  • No experience necessary, paid training is provided, and we pay your certification fees! ECS Limited is offering a unique opportunity for a talented Constru... more
  • 5 Months Ago

  • ECS Group of Companies New Orleans, LA
  • Engineering Consulting Services (ECS) is seeking an experienced Senior Project Manager to join our team. This role is responsible to ensure that all requir... more
  • 5 Months Ago

  • ECS Group of Companies Brookfield, WI
  • This position requires a commitment to manage the department for continued growth with a strong emphasis on business development and marketing initiatives ... more
  • 5 Months Ago

  • ECS Group of Companies Harrisonburg, VA
  • ECS Limited is offering a unique opportunity for a talented and certified Construction Materials Testing (CMT) Senior Field Technician to join our Harrison... more
  • 5 Months Ago


Not the job you're looking for? Here are some other Environmental Principal jobs in the St Louis, MO area that may be a better fit.

  • Civil & Environmental Consultants, Inc. Corpus Christi, TX
  • Overview As Senior Project Manager/Principal in the Houston / Corpus Christi, Texas office of Civil & Environmental Consultants, Inc. (CEC), you will be re... more
  • 5 Months Ago

  • GSI Environmental Inc. Missoula, MT
  • Job Details Job Location : Missoula, MT - Missoula, MT Salary Range : Undisclosed Description GSI Environmental is growing! We have an immediate opening fo... more
  • 5 Months Ago

AI Assistant is available now!

Feel free to start your new journey!