Senior / Staff React Frontend Engineer

Senior / Staff React Frontend Engineer

Why Nuclearn.ai

Nuclearn.ai builds AI-powered software for the nuclear and utility industries—tools that keep critical infrastructure reliable, efficient, and safe. Our software integrates AI-driven workflow, documentation, and research automation, and is already used at 60+ nuclear reactors across North America. You'll ship production code operators and engineers rely on every day.

We're growing quickly, expanding our team and our Phoenix HQ. The work is consequential : what you build helps real plants run safer and smarter.

Eligibility : U.S. citizenship or permanent residency (green card) is required due to DOE export compliance.

What You'll Do

• Architect scalable frontend systems that handle complex data workflows and real-time updates
• Build sophisticated data visualizations that make ML model outputs interpretable and actionable
• Design and implement component libraries that balance flexibility with consistency
• Optimize performance for data-heavy applications while maintaining excellent UX
• Collaborate deeply with backend engineers, data scientists, and domain experts to translate complex requirements into elegant interfaces
• Establish frontend standards and drive technical decisions across the engineering team
• Mentor engineers and elevate the entire team's frontend capabilities
• Ship features end-to-end from concept to production, owning the quality and user experience

Examples of problems you might own in your first 90 days

What Makes You a Great Fit

Technical Excellence

Product Mindset

Communication & Leadership

Self-Directed Impact

Nice To Have (not Required)

Impact You'll Have (near-term roadmap)

Work Model & Schedule

How We Hire (fast, respectful, practical)

We aim to move from first chat to decision quickly.