Senior Frontend Software Engineer - AI Development (Onsite)

About the Role

We are seeking a Senior Frontend Software Engineer to join our team and work on cutting-edge AI-driven applications. This is an onsite role based in Palo Alto, California, where you will have the opportunity to design and develop high-performance web applications that interface with advanced AI systems. As a Senior Frontend Software Engineer, you will play a crucial role in translating complex backend AI functionalities into intuitive user interfaces.

What You'll Do

• Design and build complex frontend applications using TypeScript and React.
• Own frontend architecture decisions, including routing, state management, caching, and rendering strategies.
• Implement real-time UI patterns for AI systems, including streaming model outputs, agent actions, and live system updates.
• Build and maintain reusable component systems and design tokens.
• Enforce accessibility, responsiveness, and cross-browser reliability.
• Develop rich interfaces for data review, annotation, and human-in-the-loop audit workflows.
• Instrument analytics and monitoring to measure UX quality and performance.
• Collaborate with product, design, and backend teams to turn research and prototypes into production-ready experiences.

Requirements

• 5–8+ years of professional frontend engineering experience.
• Strong expertise with TypeScript and React (Next.js, Vite, or similar).
• Experience building and operating large, complex frontend applications.
• Hands-on experience with AI-enabled or agent-based systems.
• Deep understanding of frontend performance, reliability, and maintainability.
• Proven experience shipping real-time user interfaces connected to AI or streaming systems.
• Strong testing discipline, including automated testing (e.g., Playwright, Jest).
• Ability to mentor others and contribute to technical direction.

Nice to Have

• Ownership of frontend architecture at a SaaS or developer-focused company.
• Familiarity with modern API and data transport patterns (e.g., GraphQL).
• Experience with advanced browser capabilities (e.g., web workers).
• Data visualization experience for technical users.

What We Offer

• Competitive compensation and healthcare coverage.
• Equity participation in the company.
• Relocation and visa support for successful candidates.
• Opportunity to work in a high-intensity, execution-focused engineering culture.
• Significant growth potential in a fast-paced environment.