Senior Frontend Engineer

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 8+ years of experience building and maintaining production-grade web applications 
• Experience 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 professional experience working on AI or LLM-powered products, or have partnered closely with ML/research teams to translate model capabilities into intuitive user experiences
• Bring a product-growth mindset actively contributing to product direction, identifying opportunities to improve user value, and shaping features beyond initial requirements
• 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, personalization, and real-time reasoning—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
• Actively participate in product discovery and iteration using user insights, experimentation, and data to inform frontend and UX decisions for AI-driven experiences

At Inflection AI, we aim to attract and retain the best employees and compensate them in a way that appropriately and fairly values their individual contributions to the company. For this role, Inflection AI estimates a starting annual base salary to fall within the range of $175,000 to $250,000, depending on a candidate’s qualifications and level of experience. This role also includes a meaningful equity component, allowing employees to share in the long-term success of the company.

Inflection AI values and supports our team’s mental and physical health. We are focused on building a positive, safe, inclusive and inspiring place to work. Our benefits include: 

• 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