Scientist II- Inhalation Toxicologist Research Scientist

Looking for an opportunity to make an impact?

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If this sounds like an environment where you can thrive, keep reading!

Are you passionate about research studies and analyses? Leidos is seeking a Research Scientist, Scientist II, to perform Inhalation Toxicology Research in support of biomedical research in the Environmental Health Effects Laboratory (EHEL) at the Naval Medical Research Unit Dayton, OH. (NAMRU)

The successful candidate will serve as Project Lead in cell-based and animal use research studies on environmental and occupational exposures to identify health effects before health and operational performance is compromised in the warfighter. Research efforts will require study design, medical and scientific authoring and editing of research proposals, animal use (IACUC) protocols, technical and scientific reports, responses to grants and funding calls; scientific management, coordination of technical review meetings and the preparation and presentation of point papers, technical reports, and other briefings resulting from these meetings, preparation and support of technical summaries and publications resulting from research activities; presentation of research findings at scientific meetings / professional conferences; writing, reviewing, editing, and submitting peer-reviewed articles and technical reports.

If you're ready to take on this exciting and rewarding challenge, apply now and let's get started!

Your greatest work is ahead!

The Mission
Recognized as a Top 10 Health IT provider, the draws on decades of success to deliver a range of solutions and services designed to meet the healthcare challenges of today. From the research bench to the patient bedside, we are a company of scientists, engineers, and technologists delivering a broad range of impactful, customizable, and scalable solutions to hospitals and health systems, biomedical organizations, and every U.S. federal agency focused on health. Leidos works with customers across the continuum of care to improve clinical, operational, and financial outcomes with innovative solutions that advance the next generation of care. Our mission is to contribute to creating a healthier world. To explore and learn more, click !

Are you ready to join a team dedicated to a mission? Begin your journey of a flourishing and meaningful career, share your resume with us today!

The Challenge:

• Work with a diverse team of scientists, including toxicologists, engineers, neuroscientists, chemists, psychologists, animal behaviorists and biologists, to accomplish the mission of understanding the health effects of operating in military settings.

• Design and conduct scientific research on the toxicological effects of exposure to chemicals/mixtures; these may be in combination with extreme environmental hazards or stressors, to include temperature, humidity, altitude, vibrations, and noise, and/or physical demand.

• Utilize animal models to evaluate the short- and long-term health and performance effects of acute and chronic exposure to chemicals, mixtures, environmental hazards and stressors.

• Provide scientific expertise in the field of inhalation toxicology regarding all organ systems, including pulmonary, neurological/cognitive and developmental and reproductive effects.

• Identify, devise, propose and execute military relevant studies and collect data from animal subjects (primarily rodent)

• Develop appropriate exposure systems, including analytical techniques for identifying toxicants and/or aerosols.

• Contribute substantially to the design and building toxicant generation and other exposure systems.

• Perform risk assessments based on collected toxicological data.

• Assist other investigators in the design and execution of research protocols on inhalation toxicology and environmental exposure issues of interest to the Navy.

• Operate and maintain standard and specialized laboratory equipment.

• Assist and educate entry level research assistant personnel in the understanding and performance of their duties.

• Collect pulmonary/respiratory data, or other appropriate endpoints, from animal subjects following exposure.

• Perform statistical analyses using SigmaPlot, Statistical Package for the Social Sciences (SPSS) or Statistical Analysis Software (SAS). Examples of the typical analyses required for successful performance include T-tests, Chi-Square, Analyses of Variance, Multivariate Analyses of Variance, analyses of covariance, multivariate analyses of covariance, correlations, linear regressions, multiple linear regressions, and power analyses.

• Use multiple computer software packages to create spreadsheets and perform statistical routines.

• Independently and proactively prepare mission-relevant proposal applications for toxicological, physiological, psychological, medical, and performance studies.

• Independently and plan, manage, oversee, and carry out research proactively ensuring that those assisting in project coordination are fully informed and able to perform proposed/funded research, meeting all project deadlines.

• Develop technical reports, presentations, and publications.

• Be willing and able to work nontraditional hours (e.g., nights, weekends) as needed.

• Perform other duties as needed.

What Sets You Apart:

• Ph.D. with 5-10 years of experience in inhalation toxicology, or a related scientific field

• A minimum of 5 years of experience proposing and conducting original research, including the design and implementation of protocols with animal models, data collection and analysis, and report production.

• Extensive experience in toxicology studies utilizing small animals.

• Strong background in toxicology research methodology with experience in research methods, design, and statistical analysis in a research setting.

• Proficiency in Microsoft Outlook, Word, PowerPoint, and Excel.

• Proficiency in the use of common statistical analysis software, to include SigmaPlot, SPSS and SAS.

• Strong technical writing background with experience in writing research proposals, standard operating procedures, animal use protocols for approval by the Institutional Animal Care and Use Committee (human use/Institutional Review Board protocols a plus), technical reports, journal articles, and conference papers.

• Excellent communication and interpersonal skills and ability to work cooperatively in a team environment.

• Self-motivated and capable of working independently and with others.

• Ability to obtain and maintain a Secret Clearance

• Due to US Government requirements, US Citizenship is mandatory

You Might Also Have:

• PhD plus 5+ years of relevant experience

• Experience in a military or medical research environment is highly desired

• Demonstrated experience and success responding to research funding and grant requests for proposals.

• Experience in modeling (e.g., quantitative-structure activity relationships, benchmark dose, etc.) a plus.

At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.”

If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.

Original Posting:

October 29, 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 $85,150.00 - $153,925.00

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.