Jobs in the United States

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Added 2 days ago
Associate Scientist, Purification
Satomic
San Diego, CA
Become a reliable operator who consistently meets the throughput and turnaround targets set by the Purification team.
Added 2 days ago
A
LC-MS Operator
Actalent
Madison, WI
- $26 to $30 USD / hour
Added 8 days ago
Emerging Threats Chemist
Leidos
Aberdeen, MD
Routinely participate in agent operations as a primary or secondary operator. Activities may include chemical synthesis, instrumental analysis and testing, and controlled…
Added 8 days ago
A
LC-MS Operator
Actalent
Madison, WI
- $26 to $30 USD / hour
Added 9 days ago
Chemist
LEIDOS, INC.
Aberdeen, MD
Routinely participate in agent operations as a primary or secondary operator. Activities may include chemical synthesis, instrumental analysis and testing, and controlled…
Added 13 days ago
Chemical Security & Elimination Subject Matter Expert (SME)
The Red Gate Group, Limited
Fort Belvoir, VA
…operational applications for chemical identification.Formal operator training on advanced CBRN detection and identification systems.Understanding of the distinction between chemical…
Added 17 days ago
SS
A&AS Chemical Security and Elimination SME
Sawdey Solution Services
Fort Belvoir, VA
- $140,000 to $199,000 USD / year
Formal operator training of CBRN Detection and Identification Systems (to include but not limited to IMS, PID, FTIR, Raman, GC/MS, LC/MS, etc.).
Added 17 days ago
PEREC Research Technician & Laboratory Operations Specialist
Woodbridge, VA
Serve as boat operator/captain during field missions;
Added 22 days ago
Section Head - Analytical Chemistry
Texas A&M University
College Station, TX
Added 22 days ago
Citrus Scientist - Winter Haven, FL
ADM
Winter Haven, FL
Serve as primary R&D distillation operator, including continuous, batch and thin film distillations
Added 22 days ago
LL
Lab Tech / LCMS Operator
Lighthouse Lab Services
McAllen, TX
- $60,000 to $75,000 USD / year
Lighthouse Lab Services is partnering with a growing laboratory in McAllen, TX to identify an experienced LCMS Operator to join their analytical laboratory team.
Added 25 days ago
NO
Senior Chemical Contaminant Risk Specialist (Hybrid)
Nestle Operational Services Worldwide SA
Bridgewater, NJ
- $102,297.33 to $140,128.65 USD / year
Added 28 days ago
SA
Tool Control Coordinator (R5727)
Shield AI
Dallas, TX
- $28 to $42 USD / hour
…daily tool room operations, support maintenance and air vehicle operator teams, and oversee the lifecycle of controlled tools and…
Added 28 days ago
SA
Senior Software Engineer, Autonomous Pilot Integration – Weapons (R5427)
Shield AI
Washington, DC · San Diego, CA · Boston, MA · Dallas, TX
- $163,200 to $244,800 USD / year
…of the year to different office locations, customer sites, operator training events, flight tests, and integration…
Added 28 days ago
SA
Senior Software Engineer, Autonomous Pilot Integration – Expeditionary (R5208)
Shield AI
Washington, DC · Boston, MA · San Diego, CA · Dallas, TX
- $163,200 to $244,800 USD / year
This team has a strong fielded-operator culture - long-endurance ISR missions, customer-driven workflow iteration, and demanding live exercises across multiple U.S. and international…
Added 28 days ago
SA
Senior Software Engineer, Autonomous Pilot Integration – Emerging Domains (R5423)
Shield AI
Washington, DC · Boston, MA · San Diego, CA · Dallas, TX
- $163,200 to $244,800 USD / year
…of the year to different office locations, customer sites, operator training events, flight tests, and integration…
Added 28 days ago
Laboratory Equipment Specialist /LC MS operator- Evening shift - Princeton
Syneos Health Clinical Lab, Inc.
Princeton, NJ
The Laboratory Equipment Specialist/ LC MS operator is responsible for laboratory support functions broadly or within a particular area of specialty or concentration (e.g. Robotics) and…

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LEIDOS, INC.

Chemist

Aberdeen, MD, United States

Pay Range $73,450.00 - $132,775.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.

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Job details

Pay: Pay Range $73,450.00 - $132,775.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.
Posting language: English
Posted: Oct 30, 2026

Original job description

The Non-Kinetic Effects Business Area, part of the Defense Sector at Leidos, currently has an opening for an Chemist at the U.S. Army Combat Capabilities Development Command – Chemical Biological Center (DEVCOM CBC) facility located at Aberdeen Proving Ground, Maryland. This is an exciting opportunity to use your synthetic chemistry and toxicology experience to advance the DEVCOM CBC Threat Agent Sciences Mission across basic and applied research programs.

Under this role, you will work with both Federal Government staff / officials and other Leidos personnel to perform initial hazard assessments of chemicals by evaluating synthesis routes; physical and chemical properties; stability; and preliminary toxicological considerations. You may also be tasked with assessment of the persistence, degradation, environmental impacts, and hazards associated with threat materials following dissemination or environmental exposure. 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.

Primary Responsibilities:

Support new and ongoing basic and applied research programs as a principal investigator, technical lead, or research team member to meet program goals and objectives.
Routinely participate in agent operations as a primary or secondary operator. Activities may include chemical synthesis, instrumental analysis and testing, and controlled environmental-exposure experiments.
Analyze samples from a range of matrices - including vapor, soil, water, and tissue - for target compounds and degradation products using analytical instrumentation and methods such as:
Thermal desorption
Pyrolysis
Gas chromatography with flame photometric detection (GC-FPD)
Gas chromatography-mass spectrometry (GC-MS)
Liquid chromatography-mass spectrometry (LC-MS)
Tandem liquid chromatography-mass spectrometry (LC-MS/MS)
Prepare analytical standards from surety material to support instrument calibration and calibration-verification requirements.
Determine and evaluate chemical physical properties, including vapor pressure, solubility, density, viscosity, surface tension, flash point, thermal stability, partition coefficient, and acid dissociation constant.
Develop, revise, and maintain laboratory procedures, test plans, research documentation, and technical reports.
Support laboratory management activities, including equipment and supply inventory, chemical tracking, waste-disposal coordination, and maintenance of laboratory procedures and records.
Prepare monthly progress reports and maintain routine communication with program customers, stakeholders, and internal technical teams.

Basic Qualifications:

BS degree with 5+ years experience in a chemistry, analytical chemistry, environmental science, chemical engineering, toxicology, materials science, or a related scientific discipline.
Experience conducting laboratory research involving hazardous materials, chemical analysis, environmental fate, chemical properties, or related technical areas.
Working knowledge of chromatographic and mass-spectrometric analytical techniques, particularly GC-MS, LC-MS, and LC-MS/MS.
Experience preparing analytical standards, performing instrument calibration, and supporting quality-control or calibration-verification activities.
Ability to develop laboratory procedures, test plans, technical reports, and progress updates.
Demonstrated attention to laboratory safety, chemical inventory control, waste-management procedures, and documentation requirements.
Ability to work independently and collaboratively in a multidisciplinary research environment.
Strong written and verbal communication skills, including the ability to communicate technical findings to customers and program stakeholders.
Candidate must be a U.S Citizen.
Candidate must obtain a U.S. Department of Defense Secret Clearance.
Enrollment in and maintenance of DEVCOM CBC's Chemical Personnel Reliability Program (PRP) certification may be a required condition of this position.

Preferred Qualifications:

MS degree with 2+ years experience in aforementioned technical fields.
Prior experience working across multiple program areas under one role.
Previous experience with/enrollment in chemical safety and monitoring programs, such as DEVCOM CBC’s Personnel Reliability Program (PRP).

NKE If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

October 30, 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 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.

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