26 Results for

Environmental Jobs in O Fallon, MO

Jobs

New!

St. Louis, Missouri2 days ago

Who We Are: At UES, we’re a team of more than 4,000 engineers, scientists, geologists, inspectors, technicians, and drillers united by a shared purpose—to make a meaningful impact in the communities we serve. This role provides high-level project support, advanced technical analysis, and regulatory strategy, particularly for remediation and groundwater-focused projects.

Berkeley, MO30+ days ago

As trusted partners to major aerospace OEMs and Tier 1 suppliers, we connect professionals with opportunities to grow and excel in the aviation and aerospace industries. We deliver expert workforce solutions across engineering, IT, production, maintenance, and support roles.

St Louis, MO30+ days ago

Full-time

As the largest global pure play sustainability consultancy, we partner with the world’s leading organizations, creating innovative solutions to sustainability challenges and unlocking commercial opportunities that meet the needs of today while preserving opportunity for future generations. As a Consulting Partner, Environmental Remediation, you will play a pivotal role in expanding ERM’s market leadership in the Atlantic Central region, driving strategic growth and shaping solutions that matter.

Granite City, IL30+ days ago

2+ years' experience of environmental management in an industrial setting, preferred (will consider co-op/internship). Metal Shape: Flat-rolled, Tubular, Value-add products.

St. Louis, Missouri30+ days ago

ECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #148 in Engineering News-Record’s Top 200 Environmental Firms (October 2025) and #50 in Zweig Group’s Hot Firm List (May 2025). What You'll Do: Engineering Consulting Services (ECS) is seeking an Environmental Project Manager to join our Due Diligence team in the Greater Chicago Area.

Saint Louis, MO30+ days ago

As a member of this team, you would contribute to CDM Smith's mission by: • Conduct evaluations of available data analytics technologies and platforms to analyze a wide range of environmental data across various applications (e.g., water quality assessments, remedial investigations, remedial actions, and operations and maintenance of treatment systems). In addition, during employment individuals may be required by CDM Smith or a CDM Smith client to successfully complete additional background checks, including motor vehicle record as well as drug testing.

Saint Louis, MO30+ days ago

The preferred candidates will have field experience working at Superfund and other contaminated sites, running complex field programs, preparing planning documents and preparing reports for environmental characterization and remediation projects. In addition, during employment individuals may be required by CDM Smith or a CDM Smith client to successfully complete additional background checks, including motor vehicle record as well as drug testing.

St. Louis, MO23 days ago

As the largest independent distributor of welding and gas products in Missouri and downstate Illinois, we distribute a full line of industrial welding and gas related equipment focusing on product quality, best in class service and family values. The Environmental Health & Safety Intern supports CK's safety initiatives by working alongside the Safety Director to assist with employee training, conducting audits and inspections, and helping implement safety policies in compliance with OSHA, DOT, and other regulations across all CK Supply locations.

Berkeley, MO10 days ago

St. Louis, MO30+ days ago

This is a subcontractor opportunity within the commercial real estate due diligence industry, working alongside our full-time team on projects across the United States. We are expanding our network of skilled Field Professionals to support Phase I Environmental Site Assessments (ESA) and Property Condition Assessments (PCA).

Berkeley, MO30+ days ago

$80–$85 Per Hour

Seeking an Electrical Test Engineer with a strong technical background and previous experience with electrical design, instrumentation, system integration, data acquisition, and test to join our team in Berkeley, MO. The selected candidate will be responsible for supporting test efforts throughout the whole product test lifecycle (proposal, planning, design and build, test execution, posttest activities).

New!

Saint Louis, MO2 days ago

If you’re an experienced environmental or engineering leader who thrives at the intersection of strategy, operations, and people, this is an opportunity to step into a true General Manager role with full P&L ownership, the ability to scale a growing platform, and a clear path to long-term value creation. Our client is a well-established and highly respected environmental consulting, contracting, and engineering firm serving clients where environmental compliance, remediation, and strategic land and facility use are mission-critical.

New!

St. Louis, MO5 days ago

Key Responsibilities: Clean and maintain floors and wall surfaces in assigned areas using appropriate equipment and cleaning agents (sweeping, mopping, vacuuming, etc.). This hands-on role supports the daily cleanliness and upkeep of school facilities to ensure a clean and safe environment for all.

New!

St. Louis, Missouri6 days ago

The ideal candidate will have strong research and writing skills and at least one (1) to seven (7) years of experience in all phases of toxic tort and environmental litigation including case management, motion practice, and discovery, as well as handling hearings, depositions, arbitrations, and trials. Lewis Brisbois’ representation of its clients, both in toxic tort and environmental matters, extends to state, federal, and administrative hearings and trials, including Superfund multi-site litigation and coordinated Federal Multi-District Litigation.

St Louis, MO30+ days ago

Administer the environmentally regulated processes and equipment associated with the NCW and Arnold facilities, including but not limited to the following: Air permits, underground storage tanks, hazardous waste generator storage and disposal, universal waste storage and disposal, hazard communication and reporting, pertinent TSCA requirements, freon management, spill prevention, storm water and wastewater permits, and other environmental issues pertinent to the NCW site and the Arnold sites, etc. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information.

Earth City, MO30+ days ago

$18–$21 Per Hour

During our comprehensive training process, you will learn the following responsibilities, and once experienced, have the opportunity for rapid advancement: Conduct on-site field testing in a professional manner and transport testing equipment to customer sites. Benefits to the Environmental Field-Testing Technician role include a clear and progressive career path, upward mobility, PTO, and great benefits that kick in the month following your start date.

O'Fallon, MO8 days ago

$27.28–$40.92 Per Hour

This position plays a vital role in maintaining the City's fleet-especially heavy‑duty refuse trucks-and ensuring safe, reliable operation of vehicles and equipment that support essential public services. The ideal candidate is mechanically inclined, safety‑focused, and comfortable working in a fast‑paced environment with diverse repair needs.

LAKE SAINT LOUIS, MO9 days ago

Sodexo offers a range of services to healthcare facilities, including food, nutrition, environmental, facilities management, healthcare technology management, retail, and patient experience services. Sodexo’s Health Care Division is seeking an evening Environmental Services / Custodial Manager 2 at St. Joseph Hospital West - Lake Saint Louis, located in Lake Saint Louis, Missouri.

Saint Louis, MO30+ days ago

$21–$23 Per Hour

Crothall has almost 30,000 dedicated team members across its core services, which include: Environmental Services, Patient Transportation, Patient Observation, Facilities Management, Healthcare Technology Solutions, Ambulatory Services, and Sterile Processing. As an intern with Crothall you will have the opportunity to perform/assist in a variety of duties to include the overall cleanliness of the hospital, managing, scheduling, and training of the frontline team members, vendor relations, and patient experience efforts, and more.

St. Louis, Missouri30+ days ago

Candidates must possess a strong analytical ability, have excellent research, writing and verbal communication skills, and a commitment to client service. Disclaimer: Reposting positions from this website does not authorize search firms or other third parties to directly solicit candidates on the firm’s behalf or represent a relationship with the firm.

Saint Louis, MO30+ days ago

Keywords: Civil Engineer, Water Resources, WRE, Hydrology, Hydraulics, Stormwater Management, Floodplain Analysis, AutoCAD, GIS, MSD St. Louis, PE License, ESOP, H&H Modeling, Environmental Engineering, St. Louis Engineering Jobs. In this role, you will transition from simple data analysis to high-stakes project leadership, steering the planning, design, and implementation of essential water-related projects that define the landscape of St.

St Louis, MO30+ days ago

Full-time

Provide technical assistance on a wide range of capital infrastructure and other projects including preparation of environmental assessments and environmental impact statements under the National Environmental Policy Act, environmental due diligence services, habitat assessments, wetland delineations and reports, Phase I Environmental Site Assessments, and other related environmental documents. ERM is seeking a motivated Environmental Biologist/Ecologist/Scientist to join our global consulting firm as a Senior Consultant, Lead Wetland Delineator in our growing Environmental Impact Assessment team in ERM's Heartland Area, which includes offices in St.

Saint Louis, MO30+ days ago

Serve as CDM Smith’s primary modeling interface with clients on complicated sediments sites; this includes having the ability to assess and understand a problem and develop and communicate a technical strategy to the client. Roles and responsibilities may include, but are not limited to the following regarding sediment remediation projects: • Understanding the scientific and engineering principles of modeling surface water hydrodynamics, sediment transport, and contaminant fate and transport in in coastal, estuarine, riverine, and/or lacustrine settings.

Saint Louis, MO30+ days ago

CDM Smith's Environmental Services Group is seeking an Engineer, Scientist or Geologist with a.) experience modeling contaminant transport through sediment caps and/or b.) a working knowledge of computer-aided design (CAD) in remediation projects combined with basic geotechnical engineering experience (significant academic coursework may suffice) related to remediation projects located anywhere within the United States. • Serve as CDM Smith’s primary interface with clients on complicated sediment tasks; this includes having the ability to assess and understand a problem and develop and communicate a technical strategy to the client.

New!

Town and Country, MO2 days ago

$25–$31 Per Hour
Temporary

RESPONSIBILITIESAssist scientists with experiment design, setup, monitoring, and data collectionSupport greenhouse and laboratory studies involving plants and pathogensPerform treatment applications and assist with planting, processing, and disposal activities in compliance with USDA guidelinesCollect, record, and organize research data accurately and efficientlyMaintain clean, organized, and compliant laboratory and greenhouse environmentsParticipate in project meetings and assist with timelines and scheduling coordinationCommunicate project updates, issues, and progress with team members and leadershipCollaborate effectively within a multi-project team environment while also managing independent tasks***Drug screen & criminal background check will be required **Only those lawfully authorized to work in the designated country associated with the position will be considered.** EDUCATIONBachelor’s degree in Plant Biology, Molecular Biology, Biochemistry, Microbiology, or related fieldQUALIFICATIONS 1–2 years of greenhouse and/or agricultural laboratory experience Strong attention to detail and organizational skillsAbility to follow protocols and work in regulated research environmentsTeam-oriented mindset with strong communication skillsSelf-motivated and able to work independently when neededSUMMARYWe are seeking a motivated and detail-oriented Biologist to support greenhouse, laboratory, and controlled-environment research activities within a leading crop science organization.

Hazelwood, MO30+ days ago

Full-time

Performs E3 program planning, authoring E3 support documentation, continuous program E3 oversight and visibility, and product manufacturing support • Performs trade studies, modeling, simulation and other forms of computational electromagnetic (CEM) analysis to predict component and interconnects performance and to optimize design around established requirements. • Provides support to products throughout their lifecycle from manufacturing to customer use by recommending engineering solutions to issues and performing root-cause analysis of anomalies and other engineering support as requested • Supports programs and functions site-wide with the interpretation, implementation, adherence to and compliance of the St.

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Environmental Jobs in O Fallon, MO

Jobs

Senior Environmental EngineerUniversal Engineering Sciences

Test & Evaluation Engineer 4 - Environmental TestingThe Structures Company, LLC

Consulting Partner, Environmental RemediationEnvironmental Resources Management, Inc.

Environmental EngineerSaninc

Environmental Project Manager - Due DiligenceECS Ltd

Environmental Data Analytics Discipline LeaderCDM Smith

Environmental Engineer 5 (Feasibility Studies)CDM Smith

Environmental Health and Safety InternCK Supply

Test & Evaluation Engineer 4 - Environmental TestingThe Structures Company

Environmental Field Subconsultant (Phase I ESA / PCA) (MO, OK)Blew & Associates, P.A.

687-Environmental TestingApollo Professional Solutions

Environmental General ManagerEnginuity Advantage

Environmental Services AideSt. Louis University High

Toxic Tort & Environmental Associate AttorneyLewis Brisbois

Environmental & Safety Project ManagerServiceSource

Environmental Field-Testing TechnicianAlliance Technical Group

Mechanic I- Environmental ServicesCity of O'Fallon

Environmental Services / Custodial Manager 2Sodexo

Environmental Services Intern (SUMMER) / Crothall Healthcare, St. Louis Children's HospitalCompass Group, North America

Environmental/Toxic Tort Litigation AttorneysGordon Rees Scully Mansukhani, LLP

Civil EngineerLuxus

Senior Consultant, Wetland DelineatorEnvironmental Resources Management, Inc.

Sediment Remediation Modeler (Engineer, Scientist or Geologist)CDM Smith

Sediment Remediation Specialist (Engineer, Scientist or Geologist)CDM Smith

Biologist Jobs in USA, MO, Chesterfield | Rose International JobRose International

Electrophysics Engr/Scien 5LanceSoft Inc

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