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Nuclear Criticality Safety Consultant - Piketon, OH; Oak Ridge, TN (Hybrid role with some remote work flexibility)

Paschal Solutions, Inc.
Oak Ridge, TN Remote Full Time
POSTED ON 8/13/2026
AVAILABLE BEFORE 9/5/2026
Description

Nuclear Criticality Safety Engineer

Location: Piketon, OH and Oak Ridge, TN | Work Model: Hybrid

Work Environment

Primary Work Sites: Client facilities in Piketon, OH and Oak Ridge, TN

Travel: Limited travel may be required with client approval, reimbursed in accordance with GSA rates

Physical Requirements: Ability to perform standard office duties and occasional facility walkdowns

Supervisory Responsibilities: None

Why Join Paschal Solutions?

At Paschal Solutions, we are redefining what's possible in nuclear engineering. We foster an environment where innovation, expertise, and collaboration drive meaningful impact. Our team comprises industry-leading professionals dedicated to implementing solutions that address our clients' most complex challenges. When you join us, you'll collaborate with passionate, focused teammates on groundbreaking nuclear solutions that impact the industry and change the world. If you're a self-driven nuclear criticality safety professional eager to contribute to transformative projects, we want to hear from you.

About This Opportunity

We are seeking a talented Nuclear Criticality Safety Engineer to join our growing team serving clients in Piketon, OH and Oak Ridge, TN. This hybrid role offers flexibility with remote work options while requiring periodic on-site presence for facility walkdowns and collaborative team engagements. You'll be at the forefront of ensuring safe, efficient fissile material operations while developing innovative safety solutions.

Key Responsibilities

  • Support management in establishing and maintaining strong nuclear criticality safety (NCS) programs with technically sound analyses
  • Perform comprehensive NCS analyses and develop safety basis documentation for fissile material operations
  • Develop and validate computer models using radiation transport calculation systems to support NCS analyses
  • Establish operational limits and controls to maintain safe and efficient facility operations
  • Ensure NCS requirements are effectively implemented across all operational activities
  • Participate in audits, inspections, incident investigations, and design reviews
  • Conduct NCS assessments and reviews of work packages, procedures, work instructions, authorization basis documents, and operational documentation
  • Apply expertise in criticality code verification and validation, criticality benchmarks, criticality alarm assessment, and criticality safety evaluations

Required Qualifications

  • Bachelor of Science degree in Nuclear Engineering, Physics, Chemistry, Mathematics, or related field
  • Minimum 3-5 years of professional experience in nuclear criticality safety or related nuclear engineering roles
  • Ability to obtain a DOE "Q" Clearance (Active "Q" clearance strongly preferred)
  • U.S. Citizenship with no dual citizenship

Required Skills & Abilities

  • Exceptional interpersonal and written communication skills
  • Meticulous attention to detail and commitment to accuracy in technical work
  • Proficiency with Microsoft Office applications
  • Demonstrated expertise with MCNP and/or SCALE radiation transport calculation systems

Other Qualifications

  • Experience with DOE facility operations or nuclear weapons complex background
  • Familiarity with regulatory frameworks and compliance requirements in nuclear safety
  • Experience mentoring junior engineers or leading technical teams
  • Advanced degree in Nuclear Engineering or related discipline

Comprehensive Benefits Package

  • Competitive compensation commensurate with experience
  • Immediate vesting in retirement benefits
  • Medical insurance (including HSA-compatible plans)
  • Vision and dental coverage options
  • Simplified Employee Pension (SEP-IRA) plan
  • Life insurance and accidental death and dismemberment coverage
  • Long-term and short-term disability insurance
  • 24/7 Employee Assistance Program (EAP)
  • Generous paid time off (PTO)
  • Employee referral program

Our Core Values: TRUST

TRUST serves as the foundation of our identity, guiding our decisions and shaping our culture:

  • Team First: Collaboration defines our culture. We support and challenge each other, always prioritizing the team's collective success.
  • Relentless Pursuit of Improvement: We embrace continuous growth, constantly seeking smarter, more efficient ways to operate. We challenge ourselves to evolve, innovate, and push boundaries.
  • Unapologetic in Doing What's Right: Integrity is non-negotiable. We fearlessly uphold our values with ethical and transparent decision-making, never taking shortcuts on principles.
  • Set the Bar High—Really High: Excellence isn't a goal; it's our standard. We embrace a culture where self-driven professionals challenge norms and redefine engineering excellence.
  • Trusted Partner: Our customers rely on us to deliver consistently. We craft tailored solutions to address unique challenges and proactively seek opportunities to simplify operations.

Ready to Make an Impact?

Join Paschal Solutions and contribute to groundbreaking nuclear safety solutions. Apply today to become part of a team that values innovation, integrity, and excellence.

Paschal Solutions reserves the right to modify, interpret, or apply this job description as needed. This description does not imply that these are the only duties to be performed. Employment is on an at-will basis. Reasonable accommodations will be made for qualified individuals with disabilities.

Paschal Solutions, Inc. (PSI) is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age or any other characteristic protected by law.

Salary.com Estimation for Nuclear Criticality Safety Consultant - Piketon, OH; Oak Ridge, TN (Hybrid role with some remote work flexibility) in Oak Ridge, TN
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