Administrative Assistant

What You Will Do

The International Threat Reduction Group (NEN-3) within the Nuclear Engineering and Nonproliferation Division is seeking a highly organized, reliable, and customer-focused Administrative Professional to provide business and high-level administrative support to our dynamic team. In this role, you will serve as the first point of contact for the group, working closely with NEN-3 management, the staff operations manager, and NEN leadership.

You'll support a broad range of administrative functions in a fast-paced, mission-driven environment and play a key role in ensuring the group's daily operations run smoothly. We are looking for a proactive problem-solver who anticipates challenges, handles sensitive matters with discretion, and communicates effectively across all organizational levels. This position requires someone who thrives working independently, balances multiple priorities, and demonstrates initiative, professionalism, and sound judgment.

• Proven ability to organize, prioritize, and complete multiple tasks under strict deadlines and shifting priorities.
• Demonstrated dependability, punctuality, and consistent attendance.

• Excellent written and verbal communication, including strong proofreading and editing skills.
• Ability to compose clear, accurate correspondence and documents with attention to detail.
• Strong interpersonal skills and the ability to interact effectively with personnel at all levels, both internal and external.

• Expert-level proficiency in Microsoft Teams and Microsoft Office Suite (Outlook, Word, Excel, PowerPoint).
• Ability to independently prepare professional documents and produce reports and presentations.

• Strong relationship-building and collaboration skills.
• Ability to handle difficult interactions with professionalism, tact, and discretion.

• Experience handling sensitive or classified information, including Controlled Unclassified Information (CUI), with discretion and diplomacy.
• Ability to work independently with minimal supervision, maintaining confidentiality and integrity at all times.

• Experience supporting teams in areas such as calendar management, travel coordination (domestic and foreign), procurement, meeting logistics, and timekeeping.
• Strong problem‑solving abilities and initiative to identify, develop, and implement effective solutions.

• Demonstrated ability to balance long‑term projects with urgent requests and shifting priorities.

• Proven ability to foster teamwork and collaboration across groups.
• Dependable, adaptable, and able to manage interruptions calmly and effectively.

Position requires a High School Diploma and 5 years related experience; or, an equivalent combination of education and experience directly related to the occupation. At this level, additional training, certification, and/or education may be desirable.

• Familiarity with LANL business systems, including Oracle, Ariba/purchase card procurements, the Foreign Visits Tracking System, badging and clearance systems, SharePoint, and MS Teams.
• Experience with Concur or a similar business travel system and familiarity with government travel policies.
• In-depth understanding of Laboratory organizational structures, operations, policies, and procedures.
• Active DOE Q clearance.

The work location for this position is onsite and located in Los Alamos, NM. All work locations are at the discretion of management.

Regular appointment employees are required to serve a period of continuous service in their current position in order to be eligible to apply for posted jobs throughout the Laboratory. If an employee has not served the time required, they may only apply for Laboratory jobs with the documented approval of their Division Leader. The position commitment for this position is 1 year.

Due to federal restrictions contained in the current National Defense Authorization Act,…