Lead Criticality Safety Engineer for Advanced Microreactors

Kindredventures; Idaho Falls (ID); Hybrid; USD 120,000 - 190,000; Full time

Benefits offered by this job

Health, Dental, Vision Insurance

Paid Time Off

Corporate Gym Membership

Job summary

Aalo Atomics is seeking a Criticality Safety Engineer to perform evaluations, develop safety controls, and act as the CSO for assigned facilities at the Aalo-X campus. You will ensure compliance with DOE safety requirements and ANSI/ANS-8 standards, working with operations, design, and management teams to maintain rigorous safety controls.

The role emphasizes independent analysis, technical guidance, and cross‑functional collaboration to support safe, compliant criticality operations in a

Qualifications

• Bachelor of Science degree in Nuclear Engineering, Nuclear Physics, Physics, or a closely related discipline.
• 8+ years of experience in nuclear criticality safety at DOE facilities.
• Proficiency with Monte Carlo neutron transport codes (MCNP, SCALE, OpenMC, Serpent).
• Strong working knowledge of DOE criticality safety requirements (10 CFR 830, DOE Order 420.1, DOE-STD-3007).
• Familiarity with ANSI/ANS-8 series standards for nuclear criticality safety.
• Experience reviewing safety basis documents for criticality safety adequacy.
• Ability to perform independent criticality safety assessments and write defensible evaluations.
• Strong communication with operations, design, and management personnel.

Responsibilities

• Perform criticality safety evaluations (CSEs) per DOE-STD-3007 and scoping calculations.
• Verify and review criticality safety evaluations for accuracy.
• Assess safety basis documents and facility/process modifications for criticality safety.
• Oversee implementation of Criticality Safety Program requirements, limits, and controls.
• Act as Criticality Safety Officer for assigned areas and liaise with operations.
• Conduct regular facility walkdowns and surveillances for compliance.
• Advise personnel on criticality safety limits and when CS engineering consultation is needed.
• Authorize new or modified equipment under active CSE coverage.
• Support development of facility-specific criticality safety controls and training materials.

Skills

Criticality safety

Independent reviews

Technical writing

Communication skills

Education

B.S. in Nuclear Engineering / Nuclear Physics / Physics

M.S./Ph.D. preferred

Tools

MCNP

SCALE

OpenMC

Serpent

Job description

Aalo Atomics is seeking a Criticality Safety Engineer to perform evaluations, develop safety controls, and act as the CSO for assigned facilities at the Aalo-X campus. You will ensure compliance with DOE safety requirements and ANSI/ANS-8 standards, working with operations, design, and management teams to maintain rigorous safety controls.

The role emphasizes independent analysis, technical guidance, and cross‑functional collaboration to support safe, compliant criticality operations in a