
Nuclearn automates critical nuclear plant workflows using AI to reduce manual, time-consuming tasks and improve safety and efficiency. The company builds nuclear-specific, pre-trained AI models and software developed by an in-house data science team with industry veterans; its approach leverages machine learning and domain expertise tailored to reactor operations. Nuclearn supplies its solutions to nuclear operators and power plants, with deployments across more than 60 reactors worldwide. The product is delivered as enterprise software for plant operators and engineering teams and is grounded in patented techniques and operational experience. Nuclearn targets the nuclear power market, focusing on operational scale, regulatory constraints, and workforce modernization needs.

Nuclearn automates critical nuclear plant workflows using AI to reduce manual, time-consuming tasks and improve safety and efficiency. The company builds nuclear-specific, pre-trained AI models and software developed by an in-house data science team with industry veterans; its approach leverages machine learning and domain expertise tailored to reactor operations. Nuclearn supplies its solutions to nuclear operators and power plants, with deployments across more than 60 reactors worldwide. The product is delivered as enterprise software for plant operators and engineering teams and is grounded in patented techniques and operational experience. Nuclearn targets the nuclear power market, focusing on operational scale, regulatory constraints, and workforce modernization needs.
Founded: 2021
Headquarters: Phoenix, Arizona
Product: Nuclear-specific AI models and enterprise software (AtomAssist, SPARK models, Nuclearn Agents)
Customers / Deployments: Deployed across more than 60 reactors
Recent funding: $10.5M Series A (Sept 9, 2025); prior $2.5M seed (Aug 2023)
Operational efficiency, documentation automation, and workforce modernization for nuclear power plant operations under strict regulatory requirements.
2021
Software Development
2,500,000 USD
Seed announced Aug 10, 2023
10,500,000 USD
Series A reported Sept 9, 2025
“Blue Bear Capital, AZ-VC, Nucleation Capital, SJF Ventures”
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Head of People Operations Why Nuclearn.ai Nuclearn.ai builds AI-powered software for the nuclear industry. Our software integrates AI-driven workflow, documentation, and research automation, and is already used at 65+ nuclear reactors across the world.
We're growing quickly, expanding our team and our Phoenix HQ. The work is consequential: what you help build here, through the people you hire and support, directly impacts how real plants run safer and smarter.
Eligibility: U.S. citizenship or permanent residency (green card) is required due to DOE export compliance.
We're seeking a hands-on Head of People Operations to build and own the people engine that takes Nuclearn from ~30 people to 100+ and beyond without losing quality, pace, or culture.
You'll spend ~50% of your time on recruiting, owning the full funnel from intake to offer, and the rest building the systems, programs, and manager habits that drive performance, retention, and engagement.
This is a builder / player–coach role, not a policy cop: you'll design pragmatic processes, keep us compliant without bureaucracy, and focus relentlessly on hiring and growing exceptional talent. You'll report to the founders and work closely with leaders across Engineering, Product, Finance, and Operations.
What You'll Do Talent acquisition & recruiting (≈50%) Your primary job on the recruiting side is to build a machine that finds and closes A‑players.
You're not here to “fill seats”; you're here to protect the A‑player bar, say “no” a lot, and make sure we only hire people we'd be excited to work with for the next decade.
Onboarding, development & performance
Compensation, Leveling & Rewards
People operations, systems & compliance (pragmatic, not bureaucratic)
Culture, engagement & leadership support
Cross-functional partnership
Examples of near‑term problems you'll tackle (first 90 days)
You What Makes You a Great Fit
Nice To Have (Not Required)
Success Metrics (What “Good” Looks Like) Over time, success in this role will look like:
Compensation & Benefits
Work Model & Schedule
How We Hire (fast, Respectful, Practical)