
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…

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…
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”
Who We Are Nuclearn.ai is a startup technology company delivering solutions to the nuclear and utility industries. We solve meaningful problems using advanced AI and high-quality software, deployed easily and cost-effectively.
Nuclearn's primary product is a web platform that tightly integrates workflow automations, machine learning model deployment, dataset management, and analysis to solve specific problems for our customers in both the nuclear and broader utility industries. The Nuclearn Platform is currently installed and in use at over 48 nuclear reactors in North America, and we are actively working to expand our reach to every nuclear utility in the US and abroad, as well as to other utility sectors.
At Nuclearn, we are seeking a highly motivated and talented Senior Python Backend Engineer with at least 7 years of experience. In this role, you will play a crucial part in shaping the future of our company as we expand our product offering and customer base. If you have a passion for building cutting-edge solutions, thrive in a fast-paced environment, and are eager to make a significant impact in the nuclear and utility industries, this could be the perfect opportunity for you.
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You must be a US citizen or permanent resident (e.g. green card holder) to be eligible for this position due to DOE Export Compliance requirements.
What You'll Be Doing As a Senior Python Backend Engineer at Nuclearn, you will:
Requirements
Bonus Qualifications (not Required, But a Plus)
Structure
What You'll Love
If you're excited about the opportunity to make a real difference in a rapidly growing company and have the skills and experience we're looking for, we'd love to hear from you. Apply today to join our dynamic team and help us revolutionize the nuclear and utility industries with innovative AI solutions.