Senior Environmental Specialist (PFAS Expert)

Sorry, this job was removed at 08:17 p.m. (UTC) on Wednesday, Jul 16, 2025
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Hiring Remotely in US
Remote
90K-162K Annually
Information Technology • Software
The Role

Leidos is seeking a senior environmental professional (scientist/engineer) with PFAS expertise to support our environmental investigation, restoration, and compliance services related to PFAS. The ideal candidate is familiar with CERCLA and RCRA investigations and has in-depth familiarity with various aspects of PFAS. The candidate could be a generalist with knowledge across a range of PFAS technical areas or a specialist with in-depth knowledge of a certain PFAS technical areas (e.g., remediation technology, chemistry, fate & transport, detection and analysis, forensics, governance). The ability to work independently but also excel at working collaboratively is essential. Strong verbal and written communication skills are required.

The role entails providing guidance and technical support across our portfolio of PFAS project. You will work with our PFAS Practice Lead to shape and direct our PFAS practice services. You will interact and be supported by our PFAS Advisory Team and PFAS Community of Practice. A key aspect of the role is to help maintain consistency across our portfolio of PFAS work, including factors such as technical excellence, technical approach, data visualization, data-driven conclusions and recommendations. Your efforts will directly impact our continued ability to meet and exceed client needs by helping to ensure that Leidos remains at the forefront of the industry in terms of technology, chemistry, remediation, regulations, characterization, detection and analysis.

About Leidos:

Leidos has over 40 years of dedicated service in the environmental restoration and compliance market. Our focus on client mission and excellence in execution has facilitated long-term success with our core clients. Over the decades we have helped to address some of the nation’s most challenging environmental restoration and compliance issues. Our work spans the US and its territories, from large complex radiological studies to preliminary assessments at remote islands OCONUS. We began investigating PFAS in 2013 and have completed or are completing PFAS projects in almost every state and territory, at over 130 sites, and with tasks ranging from preliminary assessments to remedial actions. We serve numerous federal and commercial clients, though our primary clients are U.S. Army Corps of Engineers, U.S. Air Force, Army and Air National Guard, NASA, U.S. Coast Guard, and the Department of Energy.

Primary Responsibilities:

The role and responsibility for the position are expected to evolve and adapt to the candidate’s strengths and interests over time. The following presents the range of likely tasks and responsibilities for the position.

  • Support numerous projects concurrently by providing technical guidance, technical review, aid in technical project planning, present technical summaries and/or lead technical discussions (related to PFAS) during project meetings, client meetings, and public meetings
  • Ensure that Leidos PFAS standard operating procedures remain current and directly relevant
  • Support PFAS Practice Lead with development and execution of strategic plans for the PFAS portfolio with respect to technical excellence, client development, and continued market growth
  • Work with project teams, PFAS staff, and/or independently to develop conference presentations, white papers, and/or journal articles related to PFAS.
  • Interface with project teams, clients, and public to provide technical guidance and support.
  • Maintain detailed knowledge of current state of the science and regulatory environment via continued education, research, and involvement with trade-groups (eg., ITRC, SAME, NGWA, ASCE, etc.)

What Sets You Apart:

  • Bachelor’s degree in environmental science, geology, chemistry, biology, environmental engineering, or relevant field and at least 10 years’ experience in the environmental field.
  • Advanced experience and technical proficiency conducting PFAS environmental restoration and compliance.
  • Effective verbal and written communication. Ability to work independently with little supervision. Ability to work collaboratively with multiple staff across diverse range of disciplines.
  • Proven experience leading technical discussions with project teams, clients, and public.
  • Proficiency in MS Office tools (Excel, Word, Access, Outlook, Project, PowerPoint).
  • A valid driver’s license is required. Must be able to travel domestically for client meetings and/or potential site visits up to 15% of the time.

Must be able to obtain access to, and conduct work on, U.S. Government installations. U.S. Citizenship or U.S. Permanent Resident status is required.

You Might Also Have:

  • Advanced knowledge of environmental characterization and restoration for PFAS.
  • Experience with AFCEC, USACE, NGB, and/or SERDP/ESTCP.
  • Master’s degree in relevant discipline and 15+ years of experience in the environmental field.
  • Experience developing and delivering technical presentations and poster presentations at conferences. Ability to author technical white papers, journal articles, and abstracts
  • Licensure as a professional engineer, professional geologist, project manager, or environmental professional.
Original Posting:June 24, 2025

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 $89,700.00 - $162,150.00

The Leidos pay range for this job level is a general guideline only and 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.

Leidos Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.

  • Healthcare Strength Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
  • Retirement Support Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
  • Wellbeing & Lifestyle Benefits Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.

Leidos Insights

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The Company
HQ: Reston, VA
27,104 Employees
Year Founded: 1969

What We Do

We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.

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