Explosives Chemist

SNA International, LLC, is a vibrant, growing company based in Alexandria, VA, and a world leader in forensics, biometrics, and identity intelligence services. SNA’s staff support high visibility forensic human identification operations, including staffing some of the US’s largest federal forensic laboratories. 

The qualified Explosives Chemist provides explosives chemistry forensic examination services and will work with a team of highly skilled scientific, forensic and quality driven individuals in support of the Terrorist Explosives Device Analytical Center (TEDAC).

The following list is representative of the types of activities and responsibilities anticipated to be performed, but are not limited to:


  • Receive and account for boxes of evidence and related materials from the Evidence Management Unit.
  • Visually inspect and process evidence and related materials for bulk or trace explosives evidence; photograph evidence and related materials (as appropriate); remove particles and materials from evidence for further analysis; prepare samples for visual, optical, and / or instrumental examination; examine materials both bulk and trace; and associate samples with other existing submissions (as appropriate).
  • Make initial determination of the type of materials suitable for analysis and select appropriate protocols for conducting the examination of the materials.
  • Conduct examinations using (stereo) microscopes, Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, Gas Chromatography (GC), with various detectors, Gas Chromatography / Mass Spectrometry (GC / MS), Liquid Chromatography / Mass Spectrometry (LC / MS), Ion Chromatography (IC), Scanning Electron Microscopy with Energy Dispersive X-Ray Analysis (SEM / EDXA), X-Ray Powder Diffraction (XRD), and other scientific instrumentation and techniques as needed.
  • Author forensic laboratory notes and supporting documentation.
  • Ensure daily performance check of calibration on instruments used for forensic examinations and analysis, as appropriate.
  • Use the current database network for evidence inventory, tracking, and flow.
  • Maintain proper chain of custody of all forensic material under examination.
  • Follow all QA / QC procedures, protocols and adhere to LD policies and procedures related to its accreditation and safety standards.
  • Serve as instrument specialists and provide service and maintenance to instrumentation across several disciplines including the development of new procedures and bringing new instrumentation and methods online for casework.
  • Support activities, functions, or duties as defined in future TOs.
  • Research, develop, and author whitepapers and information papers, as required.


Minimum Education and Experience Requirements:

  • Education: B.S. degree in physical sciences, life sciences, or engineering that included 30 semester hours in chemistry, supplemented by course work in mathematics through differential and integral calculus, and at least 6 semester hours of physics.
  • Experience: At least one (1) year of recent experience as a Chemist in an accredited laboratory.
  • Skills: Demonstrated ability to study and pass training, examination, and testing assessments.
  • Training: Must successfully complete FBI Laboratory Explosives Chemistry chemist training and be qualified and authorized to conduct casework within six months from being assigned to the contract / task order.

Candidates must be US citizens and able to pass a background check, drug screening, and a polygraph (if required). 

Please submit your resume and a cover letter that outlines why you should be considered for this position and position level. Applications without a cover letter will not be considered.


No phone calls


SNA International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

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