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Physicist, Senior

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Onsite

Physicist, Senior

Castalia Systems

Physicist, Senior

Skills

Knowledge Management

1 month ago

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Important information


Contract type:

Permanent

Location:

Reston, VA, USA

Work mode:

Onsite

Published on:

15 September 2026

What they need


Job Type: Full-Time

Workplace Type: Onsite

Clearance: Minimum TS/SCI with the ability to obtain a CI Poly

Must be a U.S. Citizen Benefits: Medical, dental, and vision coverage, 401k matching, generous PTO, paid holidays, professional training opportunities, and even pet insurance to ensure your furry friends are cared for too.

Job Summary Castalia Systems is seeking a Physicist, Senior to support to the government�s all source intelligence analysis of foreign weapons of mass destruction (WMD) programs, to include the proliferation and procurement of WMD-applicable materials, technologies, and knowledge, and provides intelligence analysis support to the entire spectrum of DoD and USG counter-WMD efforts.

Roles And Responsibilities A qualified candidate will perform the following duties and responsibilities, but are not limited to:

  • Supports defense analytical requirements with enhanced scientific research, capability / limitation analysis, reverse engineering analysis / characterizations, facility and vulnerability assessments. This includes, but is not limited to, applied and interdisciplinary fields of physics such as astrophysics, biophysics, directed energy weapons, and / or geophysics.
  • Conducts independent research, technical writing, modeling, and overseeing / consulting with allied engineering disciplines on, but not limited to, the areas of fiber optics, acoustics, semiconductors, lasers, weapons development and testing and / or identifying the characteristics of hard and deeply buried targets.
  • Prepares products to describe and document findings and activities.

Required Qualifications

  • Meets all qualifications and skills required of a Mid, plus:
  • Demonstrates in-depth knowledge and understanding of the labor category activities required to meet mission requirements.
  • Demonstrates mastery of qualitative and quantitative analytic methodologies and pursue developments in academia or other fields that affect tradecraft methodology.
  • Demonstrates ability to define comprehensive, new, or unique research approaches that enable rigorous assessments to address and contribute to high-level tasks.
  • Demonstrates in-depth analysis of analytic operations and knowledge management issues across organizational and intra-IC boundaries and clearly articulates key findings.
  • Demonstrates ability to work independently and with minimal oversight.
  • Demonstrates ability to review analytic products for cogent arguments, tradecraft standards, and adequate support for conclusions; routinely tests analytic rigor of analytic products.

Desired Qualifications

  • At least 8 years of experience conducting analysis relevant to the specific labor category with at least a portion of the experience within the last 2 years.
  • Bachelor�s degree in an area related to the labor category from a college or university accredited by an agency recognized by the U.S. Department of Education.
  • An additional 4 years of experience in the specific labor category, for a total of 12 years of experience in the specific labor category, may be substituted for a Bachelor�s degree.

Physical Requirements/Work Environment

  • Typical office environment.

Travel

  • Not required.

Company Description Castalia Systems is a proven business partner providing mission-critical solutions to the Federal Government. We provide cutting-edge solutions from Securing and Managing Data to Systems Engineering and Development. Castalia Systems is a pioneer in Artificial Intelligence Design and Application.

With our vast knowledge of our customers' needs and relevant technology, our team will bring successful solutions to every mission. We are one-upping our competitors by providing premium IT solutions and platforms with cutting-edge technology so it�s so evident when you compare us with anyone.

Disclaimer Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race, color, creed, sex, sexual orientation, age, national origin, ancestry, physical or mental disability, veteran status, marital status, HIV-positive status, as well as any other category protected by federal, state, or local laws. All such discrimination is unlawful, and all persons involved in the operations of the company are prohibited from engaging in this type of conduct.

#CJ

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