Software Engineer, Web Infrastructure

Notion Notion · Enterprise · San Francisco, CA · Engineering

Software Engineer focused on improving Notion's web client performance and developer velocity by optimizing page loading, interaction latency, and building developer tooling and frameworks.

What you'd actually do

  1. Improve Users Page Loading experience through modularizing client codebase, lazy loading or caching relevant assets for the users.
  2. Improve Interaction Latency through make the components and other part of codebase more lightweight and efficient.
  3. Define best practices and build developer tooling so that web engineers can develop product features more easily with confidence.

Skills

Required

  • React or similar frameworks
  • web application optimization
  • real-user performance metrics
  • bundling and build tooling (e.g., Webpack)
  • performance profiling
  • systems thinking
  • designing abstractions and tooling
  • collaboration and communication

Nice to have

  • modularizing large monorepos
  • reducing cyclic dependencies
  • improving build times
  • design systems
  • component performance
  • accessibility
  • ergonomics

What the JD emphasized

  • around 8-10+ years of experience building and optimizing large web applications in React or similar frameworks
  • Proven track record improving real‑user performance metrics at scale, from page load to post‑load interactivity
  • Strength in modern bundling and build tooling such as Webpack and performance profiling
  • Strong systems thinking and ability to design paved‑road abstractions, guardrails, and tooling for many teams