3,835 Results for

Electrical Contractor Jobs in Missouri

Jobs

Transportation Data Scientist (AI Solutions) Leidos

McLean, Virginia

This role will involve assisting in the development and deployment of AI/ML models for applications such as vehicle load classification using weigh-in-motion (WIM) data and imagery, crash prediction in traffic management centers (TMCs), and creating data ecosystems for trustworthy AI. • Prepare and integrate datasets for AI use cases, including cleaning, normalizing, enriching, and fusing multi-source data (e.g., traffic logs, imagery, weather, and permitting records) while addressing quality issues like inconsistency, sparsity, and bias.

3 days ago

Project Environmental Manager Flatiron Construction Corp

Havre De Grace, MD

A Joint Venture between FlatironDragados and Herzog is set to replace the 3/4-mile-long, 117-year-old, two-track movable Susquehanna River Rail Bridge connecting Perryville and Havre de Grace. As the Project Environmental Manager, you will develop, implement and monitor project site environmental conditions to comply with environmental agency regulations and mitigate potential environmental liabilities.

30+ days ago

Laboratory Technician Leidos

Aberdeen, Maryland

Specific support efforts include basic laboratory functions to include, but not limited to, wet chemistry analyses, analytical equipment operation to include gas chromatograph mass spectrometer (GCMS), chemical inventory, supply management, test set up, and satellite accumulation site hazardous waste management activities and documentation. The Non-Kinetic Effects Business Area, part of the Defense Sector at Leidos currently has an opening for a CBRNE Laboratory Technician at the U.S. Army Combat Capabilities Development Command – Chemical Biological Center (DEVCOM CBC) facility located at Aberdeen Proving Ground, Maryland.

3 days ago

Postdoctoral Research Associate - Earth, Environmental, and Planetary Sciences Washington University in St Louis

Washington

The screenings will include criminal background check and, as applicable for the position, other background checks, drug screen, an employment and education or licensure/certification verification, physical examination, certain vaccinations and/or governmental registry checks. As a Postdoctoral Research Associate, you will be expected to participate fully in the intellectual and social life of the department, contribute to our lecture programs and colloquia, and develop your own research projects.

30+ days ago

Temporary Recreation Leader II - Environmental Educator City of Alexandria

Alexandria, VA

Successful completion of two or more of years of college with primary coursework focused on biology, ecology, zoology, environmental science, veterinary science, or early childhood education; plus, experience developing and conducting nature-based programs for youth, and/or handling or caring for amphibians and reptiles. The Temporary Recreation Leader II/Environmental Educator will greet and assist Nature Center patrons, deliver nature-based programming, assist in the care of the Nature Center's animal ambassadors, and support the administrative needs of the organization.

30+ days ago

INTERDISCIPLINARY-GENERAL PHYSICAL SCIENCE/CHEMISTRY U.S. Department of Defense

Washington, DC

Remote

$70,623–$133,142 / year

SPECIALIZED EXPERIENCE FOR GS-11: One year of specialized experience which includes: performing tasks using Fourier Transform infrared spectroscopy (FTIR), gas chromatography (GC) with various detectors, liquid/ion chromatography (LC/IC), GC mass spectrometry (GC-MS), inductively coupled plasma (ICP) spectroscopy, ICP-mass spectrometry (ICP-MS), alpha spectroscopy, gamma spectroscopy; liquid scintillation and proportional counting; microscopy; wet chemistry techniques; or related instrumentation and equipment, conducting environmental and occupational health sample analyses determining chemical composition, and report results as required, and analyze difficult, complex, and unusual chemical samples received in the laboratory. In addition to meeting the basic requirement above, to qualify for this position you must also meet the qualification requirements listed below: SPECIALIZED EXPERIENCE FOR GS-09: One year of specialized experience which includes: monitoring sophisticated laboratory equipment such as Liquid chromatography (LC), gas chromatography (GC) with various detectors, inductively coupled plasma (ICP) spectroscopy, ICP-mass spectrometry (ICP-MS) liquid-ion chromatography (LC/IC), and LC mass spectrometry (LCMS), planning chemical analysis, and troubleshoot and maintain laboratory instruments.

4 days ago

2027 Summer Intern, Transportation Planner (Arlington, VA) ICF

Arlington, Virginia

$37,855–$77,869 / year

Completed bachelor’s degree and enrollment verification in master’s program preferably in transportation, environmental science, energy, public policy, or related field OR 9 credit hours completed in graduate level coursework preferably in transportation, environmental science, energy, public policy, or related field. Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position.

25 days ago

Biological Sciences Program Coordinator (GEO-TREES), IS- 0401- 13 Smithsonian Institution

Washington, DC

$121,785 / year

Network and Partnership Coordination Develops and maintains collaborative working relationships with scientists, universities, research institutions, governmental organizations, non-governmental organizations, funding organizations, and other partners participating in GEO-TREES activities. D. degree in a forest-related field, sufficient to support the scientific and technical objectives of the GEO-TREES program and coordinate activities across an international network of forest research sites and/or 3-5 years of related experience (described below); or an equivalent combination of education and experience.

5 days ago

2027 Summer Intern, Transportation Planner (Arlington, VA) ICF International Inc

Arlington, VA

$37,855–$77,869 / year

Completed bachelor's degree and enrollment verification in master's program preferably in transportation, environmental science, energy, public policy, or related field OR 9 credit hours completed in graduate level coursework preferably in transportation, environmental science, energy, public policy, or related field. We specialize in developing multimodal transportation plans; conducting needs assessments; analyzing transportation system performance data; evaluating the impacts of infrastructure projects, programs, and government policies; developing technical assistance resources; and documenting best practices related to integrated planning, transportation operations, and the environment.

26 days ago

Geotechnical Senior Project Engineer - Special Projects Group ECS Ltd

Hanover, Maryland

$120,000–$150,000 / year

Management of geotechnical engineering projects, which will consist of performing boring layouts, obtaining utility clearances, supervising drill rigs, performing in-situ testing, classifying soils, determining appropriate laboratory tests, and preparing geotechnical engineering reports . 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).

11 days ago

Environment Health & Safety Manager WillScot Corporation

Baltimore, MD

$92,200–$138,400 / year

Evaluate/Audit/Measure region and branches for levels of implementation and compliance with WS EHS management system processes, best practices, accident investigation corrective actions, risk assessments as well as EPA, OSHA, DOT, and state/local regulatory requirements. ABOUT THE JOB: The primary focus of this position is a business partner working with the Division, Region, and Branch Management teams to ensure implementation and ongoing improvement of environment, health, safety (EHS) and loss control processes and systems.

30+ days ago

Energy and Climate Researcher (Entry Level, Summer 2027, Hybrid) ICF

Arlington, Virginia

By the start date, candidates must have a completed bachelor's degree in environmental science, environmental studies, environmental policy, sustainability, engineering, earth and atmospheric sciences, economics, chemistry, mathematics, statistics, operations research, data analytics, public policy, computer science, cybersecurity, communications, or any related field. Analyze large and complex datasets using spreadsheets, databases, statistical tools, and programming languages to identify trends, evaluate outcomes, develop insights, and support quantitative analyses, modeling, forecasting, greenhouse gas accounting, climate risk assessments, and resilience planning activities.

4 days ago

Senior Manager, EHS Becton Dickinson Medical Devices

Hunt Valley, Maryland

$134,100–$214,500 / year

Waters collaborates with analytical laboratories around the world to advance the release of effective, high-quality medicines, assure the safety of food and water, and drive better patient outcomes by detecting diseases earlier, managing routine infections, and combatting growing antibiotic resistance. Job Summary The Senior Manager EHS (Sr Mgr EHS) will be responsible for developing, implementing, and maintaining comprehensive Environmental, Health, and Safety programs across Waters/BD operations to ensure compliance with all applicable regulations and foster a safe working environment.

29 days ago

Manager Environmental and Sustainability Program Manager III Chewy Inc

jessup, MD

RCRA Hazardous Waste Management Certification; Certified Environmental Storm Water Compliance Professional; Excellent organizational and project management skills; Strong interpersonal skills: communication skills, strong relationship builder, solid influencing and negotiation skills, and the ability to coach at multiple levels. This is a hands-on position that includes time spent at a site level, conducting inspections and audits; taking samples; providing guidance to other employees; ensuring proper waste classification; and dealing with multiple departments and all levels of employees throughout the operation.

30+ days ago

Environmental Health & Safety Intern 2027 The Whiting-Turner Contracting Co

Washington, DC

Assist in evaluating various planning/permits such as: Hot Work, Confined Space, Fall Protection, Excavation, Steel Erection, Energized Work, Pre-cast Tilt-Up as examples for effective and appropriate mitigation techniques. Work is conducted in both indoor office settings, and outdoor constructions jobsite settings requiring sitting, standing, walking, typing, carrying, pushing, bending.

30+ days ago

Environmental Field Technician ITMS

Aberdeen Proving Ground, Maryland

ITMS, Inc. (ITMS) , is seeking an Environmental Field Technician to join our team of subject matter experts supporting environmental remediation programs at Aberdeen Proving Grounds, MD. Completing land use control inspections for various components of the base (i.e. landfills, dump sites, test sites, creeks).

30+ days ago

Practice Consultant, Demand Side Management CLEAResult Consulting, Inc.

$65,800–$98,700 / year

The Practice Consultant operates as a solution designer, collaborator, and contributor to practice-building, supporting program design across geographies while helping strengthen organizational capabilities, refine offerings, and drive growth. This role focuses on developing client-specific solutions during the sales and proposal process, and on working with delivery teams to help ensure those solutions are executable, scalable, and deliver measurable outcomes in market.

30+ days ago

Procurement Analyst United States Army

Washington, DC

$104,349–$135,657 / year

In addition to meeting the basic requirement above, to qualify for this position you must also meet the qualification requirements listed below: Specialized Experience: One year of specialized experience which includes performing contracting and procurement work such as administering the acquisition of supplies, services, and construction contracts; developing and recommending acquisition approaches and determining contract types; applying knowledge of contracting processes, policies, procedures, utilization of contracting data, procurement systems, and acquisition resources to conduct acquisition-related initiatives. FOREIGN EDUCATION: If you are using education completed in foreign colleges or universities to meet the qualification requirements, you must show the education credentials have been evaluated by a private organization that specializes in interpretation of foreign education programs and such education has been deemed equivalent to that gained in an accredited U.S. education program; or full credit has been given for the courses at a U.S. accredited college or university.

5 days ago

Emerging Threats Chemist Leidos

Aberdeen, Maryland

The Non-Kinetic Effects Business Area, part of the Defense Sector at Leidos, currently has an opening for an Emerging Threat Chemist at the U.S. Army Combat Capabilities Development Command – Chemical Biological Center (DEVCOM CBC) facility located at Aberdeen Proving Ground, Maryland. This position joins Leidos’ portfolio of support to DEVCOM CBC, including basic and applied research, development, testing and evaluation, and training efforts to support the U.S. Warfighter and ensure our Warfighters maintain battlefield dominance during a chemical and/or biological event.

4 days ago

Nuclear Regulatory Associate Zeno Power

Washington, DC

$105,000–$135,000 / year

In this role you will: Support license applications and regulatory submissions for RPS technologies with nuclear and non-nuclear regulators, including preparing supporting documentation and tracking submission status through to approval. Zeno is seeking a highly motivated Nuclear Regulatory Associate to support the mission-oriented efforts of developing and bringing to market Radioisotope Power Systems (RPS) technologies to support our maritime deployments.

28 days ago

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Electrical Contractor Jobs in Missouri

Transportation Data Scientist (AI Solutions) Leidos

Project Environmental Manager Flatiron Construction Corp

Laboratory Technician Leidos

Postdoctoral Research Associate - Earth, Environmental, and Planetary Sciences Washington University in St Louis

Temporary Recreation Leader II - Environmental Educator City of Alexandria

INTERDISCIPLINARY-GENERAL PHYSICAL SCIENCE/CHEMISTRY U.S. Department of Defense

2027 Summer Intern, Transportation Planner (Arlington, VA) ICF

Biological Sciences Program Coordinator (GEO-TREES), IS- 0401- 13 Smithsonian Institution

2027 Summer Intern, Transportation Planner (Arlington, VA) ICF International Inc

Geotechnical Senior Project Engineer - Special Projects Group ECS Ltd

Environment Health & Safety Manager WillScot Corporation

Energy and Climate Researcher (Entry Level, Summer 2027, Hybrid) ICF

Senior Manager, EHS Becton Dickinson Medical Devices

Manager Environmental and Sustainability Program Manager III Chewy Inc

Environmental Health & Safety Intern 2027 The Whiting-Turner Contracting Co

Environmental Field Technician ITMS

Practice Consultant, Demand Side Management CLEAResult Consulting, Inc.

Procurement Analyst United States Army

Emerging Threats Chemist Leidos

Nuclear Regulatory Associate Zeno Power

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