Senior Frontend Engineer

At Inflection AI, our public benefit mission is to harness the power of AI to improve human well-being and productivity.

The next era of AI will be defined by agents we trust to act on our behalf. 

We’re pioneering this future with human-centered AI models that unite emotional intelligence (EQ) and raw intelligence (IQ)—transforming interactions from transactional to relational, to create enduring value for individuals and enterprises alike.

Our work comes to life in two ways today:

Pi, your personal AI, designed to be a kind and supportive companion that elevates everyday life with practical assistance and perspectives.

Platform — large-language models (LLMs) and APIs that enable builders, agents, and enterprises to bring Pi-class emotional intelligence into experiences where empathy and human understanding matter most.

We are building toward a future of AI agents that earn trust, deepen understanding, and create aligned, long-term value for all.

As a frontend engineer at Inflection, you will craft intuitive, responsive, and elegant interfaces like pi.ai that bring our LLM-powered products to life. You’ll work hand-in-hand with product, research, and design teams to build rich user experiences from rapid prototypes to scalable production apps that showcase the capabilities of our conversational AI.

We are specifically seeking a seasoned engineer with deep expertise in Next.js. You’ll play a pivotal role in architecting and scaling our web applications to deliver world-class performance, reliability, and developer velocity.

This is a good role for you if you:

• Have 4 years of experience building and maintaining production-grade web applications
• Are fluent with React, Next.js, TypeScript, and frontend performance debugging tools (e.g., Lighthouse, Chrome DevTools, Web Vitals)
• Have shipped interactive UIs from scratch—ideally handling real-time updates, accessibility, and responsive design
• Understand trade-offs between UX richness, responsiveness, performance, and maintainability
• Have designed systems balancing experimentation and rapid iteration with long-term scalability
• Are energized by working in a fast-moving, cross-functional environment with deep technical challenges
• Have a bachelor’s degree or equivalent in a related field to the offered position requirements

Responsibilities include:

• Architect and develop performant, maintainable frontend systems using Next.js, TypeScript, and React
• Collaborate with researchers to surface advanced model behaviors—including tool use, RAG, and personalization—through intuitive UX paradigms
• Develop and maintain internal UI components and design systems used across multiple product surfaces
• Integrate real-time data and analytics pipelines to visualize assistant behavior, model performance, and user feedback
• Build developer infrastructure to support fast iteration cycles: hot reloading, component testing, E2E automation, and visual diffing
• Partner across the stack with backend and platform teams to ship end-to-end features with minimal latency and maximum reliability
• Contribute to a culture of high code quality, continuous improvement, and shared ownership

• Salary Range: $175,000 – $350,000 USD per year (based on experience and location)
• Equity: Competitive stock options
• Benefits:
• Diverse medical, dental and vision options 
• 401k matching program 
• Unlimited paid time off 
• Parental leave and flexibility for all parents and caregivers
• Support of country-specific visa needs for international employees living in the Bay Area