About Valar Atomics At Valar Atomics, we're redefining what's possible in energy. Our mission is to make clean, high-temperature nuclear power scalable—unlocking abundant energy for industry, hydrogen, and next-generation manufacturing. We are a team of builders, engineers, and operators who believe nuclear energy should be fast to deploy, factory-made, and built for the real world.

Our first pilot plant in Orangeville, Utah will demonstrate how advanced nuclear systems and fuel fabrication can power the future. Joining Valar Atomics means becoming part of a company where autonomy, ownership, and impact exist at every level. The Team As part of the Engineering organization, Fuels & Materials develops and qualifies the advanced materials and fuel technologies that form the foundation of Valar's reactor systems.

The team ensures performance, reliability, and long-term durability under demanding operating conditions. The Role The Material Control and Accounting (MC&A) Specialist leads the nuclear material safeguards program at Valar Atomics TRISO manufacturing facilities.

Requirements

Conduct material balance evaluations and resolve inventory differences. 2 (Nuclear Material Control and Accountability).

4B (Safeguards and Security Program).

where applicable. Stay current on regulatory changes and implement updates to the MC&A program as required. Prepare for and support regulatory inspections, audits, and assessments.

Support inspections and domestic safeguards reviews as required. Implement and maintain tamper-indicating device (TID) programs for material protection. Manage the measurement control program including calibration, quality control, and uncertainty quantification.

Conduct limit of error of inventory difference (LEID) analysis and statistical evaluations. Ensure effective integration of MC&A with physical protection and security systems. Apply knowledge of non-proliferation principles to safeguards program design and implementation.

Support DOE/ NRC assessments, surveys, and vulnerability analyses. Conduct internal audits of MC&A processes and implement corrective action programs. Lead root cause analyses for inventory differences or safeguards anomalies.

Drive continuous improvement of safeguards effectiveness and efficiency.

Key Responsibilities

Develop, implement, and maintain the MC&A Plan and associated procedures. Oversee all nuclear material measurements, physical inventories, and material transactions. Manage material balance areas (MBAs) to ensure accurate material tracking.

Ensure timely and accurate reporting to the Nuclear Materials Management and Safeguards System (NMMSS).

Qualifications

Experience in nuclear material control and accounting or nuclear safeguards. Experience at a site handling Special Nuclear Material; commercial, DOE, NNSA facility, National Laboratory, etc. 4B) and NRC regulations (10 CFR 74).

Experience with MC&A software systems and database management.

Material Control and Accounting Specialist