Nuclear Criticality Safety (NCS) Engineer
General Matter · Los Angeles, CA
Posted about 3 months ago · $80,000-$170,000
or apply directly on General Matter's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 82 days General Matter's roles stay open a median of 80 days
- Reposted
- No
- Salary listed
- Yes 99% of General Matter's roles list one
- Ghost-job risk at General Matter
- high 128 stale, 1 reposted of 138 open
- Hiring momentum
- 156 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-24
Measured from postings appearing on and disappearing from General Matter's own greenhouse board since 2026-08-03. Full hiring picture for General Matter.
About this role
As a Nuclear Criticality Safety Engineer, you will be responsible for developing and maintaining criticality safety evaluations for processes involving fissile materials. Your role includes performing safety analyses, ensuring compliance with regulatory standards, conducting audits, and providing technical guidance and training to personnel. You will collaborate with various teams to implement safety measures and investigate incidents to develop corrective actions.
- benefits
- 2/5
- freshness
- 1/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 5/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of General Matter as an employer.
What you need
- Strong understanding of engineering fundamentals
- Bachelor’s degree in Nuclear Engineering, Physics, or a related field
- Strong knowledge of criticality safety regulations, standards, and methodologies (e.g., 10 CFR Part 70, ANSI/ANS-8 series)
- Proficiency in computational tools such as SCALE, MCNP, or similar software
- Excellent analytical and problem-solving skills
- Strong verbal and written communication skills
Nice to have
- Evidence of exceptional ability (prior projects, portfolio of work, completed products, etc)
- Experience in a fast-paced engineering environment or a highly technical role
- Certification as a Nuclear Criticality Safety Engineer (e.g., ANSI/ANS-8.24)
- Advanced degrees
- Professional Engineer (PE) license is preferred or the ability to obtain one
What you get
- Base salary range of $80,000-$170,000 annually
- Eligibility for long-term incentives in the form of stock options
- Access to medical, vision & dental coverage
- Access to a 401(k) retirement plan
Worth weighing
- Salary range is broad and may vary based on individual qualifications
- Role may require extended hours and weekends
- Fast-paced environment may demand resourcefulness and quick decision-making
Summarised from General Matter's posting. Read the full original.
Listed by General Matter on their greenhouse job board, last confirmed open on 2026-10-24. PitchMeAI is not the employer.
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