Nuclearn · 1 month ago
Senior/Staff React Frontend Engineer
Phoenix, AZ
Full-time
Onsite
Senior Level, Lead/Staff
7+ years expNuclearn.ai builds AI-powered software for the nuclear and utility industries, providing tools that enhance the reliability, efficiency, and safety of critical infrastructure. The Senior/Staff React Frontend Engineer will be responsible for architecting scalable frontend systems, optimizing performance, and mentoring team members while developing interfaces that support mission-critical operations.
Artificial Intelligence (AI)EnergyMachine LearningNuclearSoftware
No H1B
U.S. Citizen Only
Responsibilities
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
Building real-time monitoring interfaces used in mission-critical nuclear operations
Designing complex, high-dimensional ML visualization components that make automated insights actionable
Establishing a robust frontend architecture and shared component system that scales with the engineering team
Qualification
Required
U.S. citizenship or permanent residency (green card) is required due to DOE export compliance
7+ years building production web applications with deep expertise in React and modern JavaScript/TypeScript
Mastery of state management patterns (Redux, Zustand, React Query, Context, etc.)
Strong computer science fundamentals, including performance optimization and debugging complex systems
Experience architecting large-scale applications designed for long-term maintainability
Proficiency with modern tooling (Vite/Webpack, testing frameworks, CI/CD)
You think beyond implementation—asking why and should we as often as how
Experience collaborating with designers, or designing interfaces yourself when needed
Track record of creating intuitive, delightful user experiences
Comfortable making pragmatic tradeoffs in ambiguous and fast-changing environments
Ability to explain complex technical decisions to non-technical stakeholder
Experience mentoring engineers and performing thoughtful code reviews
Skilled at driving consensus and influencing technical direction
Thrive in a collaborative, fast-paced startup environment
Able to contribute independently within 6 weeks
High degree of ownership and ability to drive problems end-to-end
Proactively identifies improvements and executes on them
Preferred
Experience with data visualization libraries (D3.js, Recharts, Plotly, etc.)
Background in complex domains (scientific, industrial, financial, healthcare)
Contributions to open source or technical writing
Experience with WebGL, Canvas, or high-performance graphics
Knowledge of accessibility (WCAG) and building inclusive interfaces
Full-stack capabilities or strong understanding of backend systems
Prior startup experience or leading engineering initiatives
Company
Nuclearn
Nuclearn is a software company delivering AI solutions for automating Nuclear Industry tasks.
11-50 employees
Funding
Current Stage
Early StageTotal Funding
$13MKey Investors
Blue Bear CapitalAZ-VC
2025-09-09Series A· $10.5M
2023-08-01Seed· $2.5M
Leadership Team
Bradley Fox
Co-Founder
Jerrold Vincent
Co-Founder & CFO
Recent News
Columbia West
2025-11-15
2025-10-15
Company data provided by crunchbase