Senior Frontend Engineer

Reposted 2 Days Ago
Easy Apply
Palo Alto, CA
In-Office
175K-350K Annually
Senior level
Generative AI
The Role
As a Senior Frontend Engineer, you will architect and develop web applications using Next.js and TypeScript, collaborating with cross-functional teams and ensuring high performance and maintainability.
Summary Generated by Built In

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.

About the Role

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

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
Employee Pay Disclosures

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.

Benefits

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

Top Skills

Next.Js
React
Typescript
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The Company
HQ: Palo Alto, CA
31 Employees
Year Founded: 2022

What We Do

We are an AI studio creating a personal AI for everyone.

Our first AI is called Pi, for personal intelligence, a supportive and empathetic conversational AI. Our studio is made up of the world’s leading AI developers, creative designers, writers and innovators working together to create a brand new class of digital experiences.

This is an era of exponential change. Our name Inflection embraces this moment of transformation, while our status as a public benefit corporation provides us with the legal mandate to prioritize the well-being and happiness of our users and wider stakeholders above all else.

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