Lead UX Designer Job at Nuclearn in Phoenix

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.

Position Overview

As Principle User Experience Lead , you will shape the way the nuclear industry experiences AI. This role is a senior individual contributor position with enterprise-level influence - blending hands-on design with product strategy, user advocacy, and ownership of end-to-end experience quality.

You'll own the holistic user experience across the Nuclearn platform - from chat-based AI systems and predictive workflows to complex engineering tools - ensuring every product is intuitive, credible, and deeply trusted. You'll set the design standards, define the QA bar for product quality, and guide how Nuclearn expresses value to customers through interaction, design, and usability.

This is not a role for someone who simply executes design - it's for a design leader who thinks like a product owner, works like a craftsman, and leads by example.

Key Responsibilities

• Own the full user experience strategy and execution across all Nuclearn products, ensuring consistency, clarity, and trust at every interaction.
• Serve as the internal advocate for product quality and usability - partnering with engineering, product, and QA to define and enforce experience standards and acceptance criteria.
• Lead concept-to-production design efforts across AI workflows, chat interfaces, and predictive tools, ensuring the design supports measurable business outcomes.
• Define and maintain a unified design system and interaction framework that supports rapid iteration while upholding excellence.
• Establish experience-driven QA processes - ensuring every release meets design intent, functional clarity, and customer expectations.
• Conduct and oversee user research, usability testing, and post-release validation to continuously improve product performance and adoption.
• Champion simplicity and transparency in complex systems - designing experiences that make AI explainable, auditable, and human-centered.
• Mentor and coach designers and cross-functional peers to raise the overall design maturity of the organization.
• Represent UX in product and business strategy discussions, influencing roadmap priorities based on user insight and experience impact.
• Ensure that every aspect of the Nuclearn platform - from onboarding to daily use - communicates trust, precision, and innovation.

Qualifications

Preferred Qualifications

Compensation & benefits

Why Nuclearn