Nuclear Weapons Technical Reviewer - International Programs

***Must have an

active

DOE Q or DOD Top Secret clearance. Active, meaning the individual granted a clearance is briefed and currently occupies a position for which the clearance is required.***

Apply Your Nuclear Weapons Expertise to a Mission of Global Importance. Leidos is seeking an experienced

Nuclear Weapons Technical Reviewer – International Programs

to support the National Nuclear Security Administration (NNSA), Defense Programs' Office of International Programs, in Washington, DC. This is a unique opportunity to work at the intersection of

nuclear weapons technology, national security policy, and international defense cooperation , supporting critical partnerships between the United States, United Kingdom, and NATO allies. In this mission-critical role, you will leverage your nuclear weapons technical expertise and analytical skills to support international collaboration under the U.S./UK Mutual Defense Agreement and NATO ATOMAL Agreement. Working alongside senior government stakeholders and international partners, you will help facilitate the secure, compliant exchange of sensitive atomic information in support of U.S. and allied national security objectives. If you're looking to apply your technical knowledge beyond the traditional engineering environment and contribute to international defense cooperation at the highest levels, this is an opportunity to make a meaningful impact. This is a full-time position located at the customer site in Washington, DC. Some domestic travel is required, and international travel may be involved. Primary Responsibilities: Support international defense cooperation

under the United States/United Kingdom (US/UK) Mutual Defense Agreement (MDA) and North Atlantic Treaty Organization (NATO) ATOMAL Agreement, coordinating with the Department of War (DoW) and other U.S. Government stakeholders. Ensure compliance with nuclear information-sharing requirements

by assisting the Chief of the Joint Atomic Information Exchange Group (JAIEG) in monitoring atomic information exchanges under the US/UK MDA and NATO ATOMAL Agreement. Conduct technical and regulatory reviews

of documents to ensure the exchange of atomic information with foreign governments and regional defense organizations complies with the Atomic Energy Act and applicable international agreements. Collaborate with key U.S. and international stakeholders , maintaining close coordination with NNSA Headquarters, NNSA sites, DoW organizations, the British Embassy in Washington, the UK Ministry of Defence in London, and the UK Atomic Weapons Establishment. Develop and deliver specialized training

on protocols, policies, and regulatory requirements governing the exchange of atomic information with the UK and NATO. Maintain and enhance information-sharing procedures

for the United States and United Kingdom, ensuring processes remain aligned with applicable requirements. Perform qualitative and quantitative analyses

of large datasets to identify historical patterns, trends, and insights that support program activities. Support classified information management

by obtaining and maintaining derivative classification authority to classify JAIEG-produced documents, as required. Required Qualifications: Active Department of Energy (DOE) Q clearance or Department of Defense (DoD) Top Secret clearance. Bachelor's degree with 8+ years of relevant experience, or a Master's degree with 6+ years of relevant experience. Demonstrated technical expertise in nuclear weapons technologies, programs, or related activities. Experience processing, safeguarding, and handling accountable classified materials. Ability to work both independently and with a team to achieve objectives. Proven ability to manage multiple tasks and priorities in a high-tempo environment. Excellent written and verbal communication skills. Preferred Qualifications: Bachelor of Science degree in Nuclear Engineering or a closely related technical field. Previous experience serving as a derivative classifier. Direct experience working with NNSA laboratories, plants, and sites; understanding of NNSA’s role in the nuclear deterrent.

Salary range for this position is $125K to $135K 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 20, 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 $92,300.00 - $166,850.00 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.