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Defense Contractor Physics Jobs in Washington (NOW HIRING)

Sciolex Corporation

System Engineer II

Chantilly, VA · On-site

You get Sciolex Corporation, a fast-growing defense contractor focused on providing the U.S ... physics). Security Requirements * Active Top Secret/SCI clearance is required * Full Scope ...

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What is the difference between Defense Contractor Physics vs Defense Contractor Mechanical Engineer?

AspectDefense Contractor PhysicsDefense Contractor Mechanical Engineer
Required CredentialsBachelor's or higher in Physics or related field; security clearance often requiredBachelor's or higher in Mechanical Engineering; security clearance often required
Work EnvironmentResearch labs, defense facilities, project officesManufacturing sites, design labs, testing facilities
Industry UsageDeveloping advanced defense systems, missile technology, sensor designDesigning mechanical components, systems integration, testing
Common Search/ComparisonDefense Contractor Physics vs Defense Contractor Mechanical Engineer

Defense Contractor Physics and Defense Contractor Mechanical Engineer roles share overlapping credentials and work environments within the defense industry. Physics roles focus on research, sensor development, and theoretical modeling, while Mechanical Engineering roles emphasize design, manufacturing, and testing of physical components. Both positions require security clearances and are integral to defense projects, but they differ in technical focus and daily tasks.

What are popular job titles related to Defense Contractor Physics jobs in Washington? For Defense Contractor Physics jobs in Washington, the most frequently searched job titles are:
What job categories do people searching Defense Contractor Physics jobs in Washington look for? The top searched job categories for Defense Contractor Physics jobs in Washington are:
What cities in Washington are hiring for Defense Contractor Physics jobs? Cities in Washington with the most Defense Contractor Physics job openings:
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Infographic showing various Defense Contractor Physics job openings in Washington as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Experimental Atomic Physicist

Computational Physics, Inc.

Washington, DC

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted yesterday

Job description

Computational Physics, Inc. (CPI) is looking for an Experimental Atomic Physicist to support our customers at the U.S. Naval Observatory (USNO).

Background

The USNO is responsible for the creation, dissemination and maintenance of precise time and navigation products for the Department of Defense and other customers. CPI is seeking an Experimental Physicist with a background in atomic, molecular or optical physics to support next-generation atomic clock development at USNO. The successful candidate will support the work of the Clock Development division on optical lattice clocks and cold-atom beam optical clocks based on alkaline earth atoms. The new Physicist will work with a team of CPI contractors and USNO Scientists to develop robust solutions for high-uptime optical clocks and the infrastructure for their integration into the USNO timescale.

Most work for this position will be completed on-site at USNO in Washington, D.C.; occasional travel to conferences within and outside of the continental United States may be required based on the needs of the customer. Relocation assistance is available. The successful candidate must be able to obtain and maintain a SECRET security clearance upon hiring, an active clearance is not required at the time of application. The new Physicist will work closely with other CPI contractors and federal employees in the Precise Time Department, providing periodic updates to the Clock Development Division Chief.

Basic Qualifications

  • PhD in Experimental Atomic Physics or similar field
  • At least 6 years of experimental physics experience, this can include relevant work toward an advanced degree.
  • Data analysis using Python or similar programming language
  • Familiarity with lasers, optics and atomic spectroscopy
  • Familiarity with feedback control theory and electronics
  • Excellent verbal and written communication skills

Desired Qualifications

  • Atomic clocks
  • Laser cooling and trapping of alkaline-earth atoms
  • Diode lasers and optical frequency combs
  • Hands on experience with python-based experimental control (e.g. ARTIQ)

Candidate must obtain a SECRET clearance upon hiring.

U.S. citizenship is required for DoD contracts.

About CPI

We love science! We study the physical properties of the Earth and our atmosphere, neighboring planets, and the sun. We make the study of science practical by translating our findings into products, both hardware and software, that make our customer's lives easier and better. CPI has served various U.S. Government agencies, universities, international science organizations, prime contractors, as well as commercial customers for 40 years.

CPI is an employee-owned company -- our team members receive company stock. Employee ownership motivates and empowers increased productivity, contribution to the longevity of the business, improved retention, and enhanced employee engagement.

Why Work for Us?

  • Competitive salary and comprehensive benefits
  • Positive, upbeat, and transparent company culture with opportunities for self-development and career advancement
  • Employee-owned small business that allows team members to learn from each other and take ownership
  • Professional development support including conference attendance and certification training

Benefits

  • 401(k), Profit Sharing and an Employee Stock Ownership Plan (ESOP)
  • Disability insurance (short-term and long-term)
  • Flexible schedule
  • Flexible spending account
  • Health, Dental and Vision insurance
  • Life insurance
  • Paid time off
  • Parental Leave
  • Tuition reimbursement

To apply please visit our careers page.

CPI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

If you need a reasonable accommodation for any part of the employment process, please contact us and let us know the nature of your request and your contact information. Requests for accommodation will be considered on a case-by-case basis.

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