Senior Product Engineer, AI Startup, San Francisco (On-Site) at WhyHireWrong? | CA, US | Rezi

Senior Product Engineer, AI Startup, San Francisco (On-Site) at WhyHireWrong?

Senior Product Engineer, AI Startup, San Francisco (On-Site)

WhyHireWrong? · CA, US

Yesterday

Senior Product Engineer, AI Startup, San Francisco (On-Site)

WhyHireWrong? · CA, US

2 days ago
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About the Role

Urgent hire for a Senior Frontend-Primary Engineer to own the full product surface of an autonomous AI assistant that integrates with Slack, Gmail, and Linear. Join an early-stage team of 20 and work directly with the founding team.

Responsibilities

  • Own frontend architecture across the product using React, Next.js, TypeScript, and TanStack Query, setting patterns.
  • Develop complex, high-performance UI including multiplayer surfaces, large-data views, and real-time interfaces under production load.
  • Take full-stack feature ownership end-to-end, including API routes, database migrations, UI, and analytics.
  • Optimize state management and rendering at scale, demonstrating expertise in caching, invalidation, and optimistic updates.
  • Contribute to product decisions on rough ideas, shipping and iterating on working first versions.

Requirements

  • Deep production expertise in React, Next.js, and TypeScript, with frontend as a primary skill.
  • Demonstrate specific rendering optimization decisions made in a shipped product.
  • Experience at an AI-native company or an elite startup of Notion or Linear caliber, with clearly defined ownership.
  • Shipped and owned a complex web product in production (multiplayer, large-data, streaming, or real-time UI) with documented scaling decisions.
  • Ability to own full-stack features end-to-end without being blocked by backend support.
  • Provide publicly inspectable evidence of shipped work (personal site, shipped product, substantial public repository, or named design system contribution).
  • Based in San Francisco or open to relocating for 5-days-a-week on-site work.
  • Open to a one-week paid in-person trial assessment.

Skills

  • React
  • Next.js
  • TypeScript
  • TanStack Query
  • API routes
  • Database migrations
  • UI development
  • Analytics
  • State management
  • Rendering optimization
  • Caching
  • Invalidation
  • Optimistic updates
  • AI
  • IndexedDB
  • Vercel AI SDK
  • Agent runtimes
  • MCP servers

Location

  • San Francisco

Work Type

  • On-site
  • Full-time

Experience Level

  • Senior

About the Company

  • Early-stage team of 20.
  • Developing an autonomous AI assistant that integrates with Slack, Gmail, and Linear.