Engineering Consulting Services

Engineering consulting, geotechnical, environmental, testing services

Environmental Senior Project Manager

Project ManagementUpdated on Nov 10

Full-timeSt. Louis, MO, USANo salary listedIn-person

About the Job

Requirements

Must have at least 10 years of related environmental consulting experience.
Must have a Bachelor’s and/or Master’s of Science in Civil Engineering, Environmental Engineering, Natural or Environmental Science, Geology, or another degree relevant to environmental consulting.
Must be able to obtain a local license through reciprocity within three months of hire; additional licensure or certifications may be required depending on the work performed.
Must have extensive knowledge of environmental principles, regulations, and consulting practices.
Must have extensive knowledge of permitting requirements and environmental investigation methodologies.
Must have project management and consulting skills.
Must have leadership, coaching, and team development capabilities.
Must have financial management and budgeting skills.
Must be able to manage multiple complex projects simultaneously.
Must be able to build and maintain long-term client relationships.
Must have strong written and verbal communication skills.
Must be able to review and evaluate technical work produced by others.
Must have business development and client growth capabilities.
If driving for or on behalf of an ECS subsidiary, must have a valid driver’s license.
A qualifying US Military rank of E-7 may satisfy the military qualification only if the education and licensing requirements are also met.

Responsibilities

Perform Phase I Environmental Site Assessments independently as an Environmental Professional.
Review Phase I ESA reports prepared by junior staff.
Oversee project scheduling, execution, reporting, and closeout.
Communicate project findings and recommendations to clients and Principals.
Perform detailed technical reviews of reports and conclusions.
Lead and mentor junior staff and support professional development across the team.
Manage environmental consulting projects from proposal through project closeout.
Serve as the primary client contact for assigned projects.
Maintain and expand client relationships and business opportunities.
Manage project budgets, profitability, invoicing, and collections.
Review and approve project change orders and budgeting adjustments.
Schedule, train, and oversee technical staff assigned to projects.
Coordinate project staffing and resource allocation.
Oversee multiple projects simultaneously and ensure successful project execution.
Review and approve proposals, scopes of work, and fee estimates.
Prepare and review environmental reports, analyses, and recommendations.
Conduct senior-level reviews of project deliverables before Principal review.
Lead client meetings and project discussions.
Support staffing decisions in collaboration with department leadership.
Provide guidance on technical, operational, and project management issues.
Perform additional project leadership and technical duties as assigned.

Responsibilities

The Environmental Senior Project Manager is responsible for the successful execution of environmental consulting projects from proposal development through project closeout and collection. This role provides technical leadership, project oversight, client management, staff development, and financial accountability across multiple projects. The Environmental Senior Project Manager serves as the primary client contact on assigned projects, mentors technical staff, and ensures projects are delivered safely, profitably, and in accordance with company standards while demonstrating ECS Core Values.

Responsibilities

Performs Phase I Environmental Site Assessments independently as an Environmental Professional
Reviews Phase I ESA reports prepared by junior staff
Oversees project scheduling, execution, reporting, and closeout
Communicates project findings and recommendations to clients and Principals
Performs detailed technical reviews of reports and conclusions
Leads and mentors junior staff and supports professional development across the team
Manages environmental consulting projects from proposal through project closeout
Serves as the primary client contact for assigned projects
Maintains and expands client relationships and business opportunities
Manages project budgets, profitability, invoicing, and collections
Reviews and approves project change orders and budgeting adjustments
Schedules, trains, and oversees technical staff assigned to projects
Coordinates project staffing and resource allocation
Oversees multiple projects simultaneously and ensures successful project execution
Reviews and approves proposals, scopes of work, and fee estimates
Prepares and reviews environmental reports, analyses, and recommendations
Conducts senior-level reviews of project deliverables before Principal review
Leads client meetings and project discussions
Supports staffing decisions in collaboration with department leadership
Provides guidance on technical, operational, and project management issues
Performs additional project leadership and technical duties as assigned

#LI-CS1

Qualifications

Required Qualifications

Must have at least 10 years of related environmental consulting experience
Bachelor's and/or Master's of Science in Civil Engineering, Environmental Engineering, Natural or Environmental Science, Geology, or other degree relevant to the practice of Environmental Consulting
Must have the ability to obtain a local license through reciprocity within three months of hire date
- Additional licensure or certifications may be required depending on the type of work performed
Extensive knowledge of environmental principles, regulations, and consulting practices
Extensive knowledge of permitting requirements and environmental investigation methodologies
Excellent project management and consulting skills
Strong leadership, coaching, and team development capabilities
Strong financial management and budgeting skills
Ability to manage multiple complex projects simultaneously
Ability to build and maintain long-term client relationships
Strong written and verbal communication skills
Ability to review and evaluate technical work produced by others
Strong business development and client growth capabilities
If driving for or on behalf of any ECS subsidiary, a valid driver's license is required

Military Qualifications

The following US Military ranks will qualify for this position IF they also meet the education and licenses requirements from the above section titled "Required Qualifications":

About Us

ECS Group of Companies (ECS) was founded in 1988 with the goal to raise the standards of professional engineering consulting. Today, we are a leader in geotechnical, construction materials, environmental and building science + infrastructure consulting services. We are employee-owned with more than 3,200 employees in 125 offices and testing facilities coast to coast. ECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #144 in Engineering News-Record’s Top 200 Environmental Firms (October 2026) and #38 in Zweig Group’s Hot Firm List (June 2026). For additional information about ECS, visit: www.ecslimited.com.

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

About the Company

Engineering Consulting Services

Engineering consulting, geotechnical, environmental, testing services

ECS provides engineering consulting in geotechnical, environmental, construction materials testing/inspection, and facilities engineering. It operates nationwide through subsidiaries under ECS Group of Companies, with 3,000+ employees and 100+ offices. It differentiates itself as an employee-owned firm with a large regional footprint and a focus on delivering on time, under budget, and with value. Its goal is to deliver high-quality services and earn recognition for practical results and strong client relationships, evidenced by repeat business and referrals.

Company size: 1,001-5,000
Company stage: Not listed
Total funding: Not listed
Headquarters: Chantilly, VA
Founded: 1988

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