Environmental Scientist, CERCLA Specialist

Leidos; Reston (VA); Remote; USD 73,000 - 133,000; Full time

Job summary

Leidos is seeking an Environmental Scientist to support CERCLA investigation and remediation for government clients. This remote position requires strong technical writing, data interpretation, and the ability to translate complex environmental data into actionable conclusions.

You will work with senior staff on SAPs, RI/FS, CSMs, and deliverables, coordinating with scientists, engineers, and subcontractors while complying with QA/QC standards and safety requirements. Domestic travel up to 10%.

Qualifications

• Bachelor's degree with 6+ years or Master's with 4+ years in relevant field.
• Experience supporting CERCLA PA/SI, RI/FS or similar.
• Strong technical writing and reporting skills.

Responsibilities

• Prepare SAPs, UFP-QAPPs, HASPs and RI/FS deliverables.
• Analyze environmental data for site characterization and decision-making.
• Develop Conceptual Site Models and data visualizations.
• Support remedial alternatives evaluation and site exit strategies.
• Ensure QA compliance with federal/state and client requirements.

Skills

Technical writing

Analytical thinking

Independent work

Team collaboration

Education

Bachelor's degree in Geology, Environmental Engineering, Earth Science, Environmental Science, or related field

Master's degree with 4+ years of relevant experience

Tools

Microsoft Office

MS Project

ArcGIS

Job description

Description

Leidos is seeking an Environmental Scientist - CERCLA Investigation & Remediation to support our growing portfolio of environmental investigation, restoration, remediation, and compliance projects for government clients.

This is a remote position with up to 10% domestic travel.

The Environmental Scientist will work with senior technical staff and multidisciplinary project teams to support environmental investigation and remediation projects, primarily under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The position will focus on technical analysis, technical writing, and preparation of environmental reports and project deliverables.

The successful candidate will have strong technical writing and analytical skills, experience with CERCLA investigation and remediation projects, and the ability to translate complex environmental data into clear, technically defensible conclusions and recommendations.

Primary Responsibilities

• Prepare environmental technical documents, including Sampling and Analysis Plans (SAPs), Waste Management Plans, Uniform Federal Policy for Quality Assurance Project Plans (UFP-QAPPs), Health and Safety Plans (HASPs), subcontractor statements of work, Remedial Investigation/Feasibility Study (RI/FS) reports, and other project deliverables.
• Analyze and interpret chemical, geologic, geotechnical, engineering, and other environmental data to support site characterization, remedial decision-making, and project reporting.
• Develop Conceptual Site Models (CSMs) and technical data presentations, including maps, cross-sections, tables, figures, and other visualizations.
• Support the development, evaluation, and selection of remedial alternatives and site exit strategies.
• Compile, evaluate, and report environmental data in accordance with project quality assurance requirements and applicable federal, state, and client requirements.
• Develop data-driven conclusions and recommendations and help maintain consistency and technical quality across environmental project deliverables.
• Coordinate with environmental scientists, engineers, geologists, project managers, subcontractors, and other technical professionals.
• Perform work in accordance with approved project plans, procedures, and Leidos and client environmental, quality, health, and safety requirements.

Required Qualifications

• Bachelor's degree in Geology, Environmental Engineering, Earth Science, Environmental Science, or a related field with 6+ years of relevant experience, or a master's degree with 4+ years of relevant experience.
• Experience supporting CERCLA Preliminary Assessments/Site Inspections (PA/SI), Remedial Investigations/Feasibility Studies (RI/FS), or equivalent RCRA investigation and remediation projects.
• Knowledge of environmental site characterization, remediation technologies, data requirements, and applicable federal and state environmental regulations.
• Experience interpreting complex environmental data, developing Conceptual Site Models (CSMs), and developing technically supported conclusions and recommendations.
• Strong technical writing experience preparing environmental reports, plans, and other technical deliverables.
• Strong organizational, written, and verbal communication skills with the ability to work independently and collaboratively within multidisciplinary teams.
• Proficiency with Microsoft Office applications, including Word, Excel, PowerPoint, Outlook, and Project.
• Valid driver's license and ability to travel domestically up to 10% of the time.

Preferred Qualifications

• Field experience supporting environmental site characterization, investigation, or remediation activities.
• Professional certification or progress toward certification in a relevant discipline, such as PG, GIT, EIT, CPSS, or a related credential.
• Current or previous 40-hour HAZWOPER certification in accordance with OSHA 29 CFR 1910.120.
• Experience supporting federal environmental investigation, remediation, or restoration programs.

Must be able to pass a Public Trust background investigation. U.S. Citizenship or U.S. Permanent Resident status is required.

Please be advised that during the interview, you will be required to keep your camera on, and your interviewer will be taking your picture for identification purposes if an offer letter is extended to you.

Original Posting:

October 6, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $73,450.00 - $132,775.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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