Criticality Safety Analyst 1/2

Help safeguard one of the nation's most critical national security missions as a Criticality Safety Analyst 1/2 at Los Alamos National Laboratory in White Rock, Los Alamos County. In this full-time, on-site role, you will apply rigorous nuclear engineering judgment to keep fissionable material operations safe and subcritical.

About the Role

Joining the Nuclear Criticality Safety (NCS) Program at Los Alamos National Laboratory, you will serve as a technical authority who evaluates how fissile material is handled, processed, and stored across the Laboratory's nuclear facilities. Your analysis confirms that operations stay subcritical under both normal and credible abnormal conditions, directly supporting a mission of national importance.

Key Responsibilities

• Deliver expert technical guidance to verify that fissionable material operations remain subcritical during routine and foreseeable off-normal scenarios.
• Partner closely with facility customers and operations staff to understand workflows involving fissile materials in nuclear facilities.
• Perform and document criticality safety evaluations and analyses in line with established standards and Laboratory requirements.
• Translate complex technical findings into clear, actionable safety controls and limits for facility personnel.
• Help sustain a strong safety culture that protects workers, the public, and the environment.

Qualifications

• A background in nuclear engineering, physics, or a closely related technical discipline.
• Working knowledge of criticality safety principles and the behavior of fissionable materials.
• Strong analytical skills and meticulous attention to detail when assessing subcritical conditions.
• Effective communication abilities to collaborate with diverse facility and operations teams.
• Eligibility to obtain and maintain the security clearance required for work at a U.S. national security laboratory.

About Los Alamos National Laboratory

Los Alamos National Laboratory is a premier multidisciplinary research institution dedicated to solving some of the nation's most demanding security challenges. Based in northern New Mexico, the Laboratory unites world-class scientists and engineers whose work spans national defense, energy, and fundamental science.

How to Apply

Ready to advance your career in nuclear criticality safety? Submit your application for the Criticality Safety Analyst 1/2 position in White Rock, Los Alamos County through the official Los Alamos National Laboratory listing.