About the role
WHO WE ARE
Notion is the collaborative AI workspace where teams and agents think together https://www.youtube.com/watch?v=vkpYpWfEK5s. We're building one place where your knowledge, projects, meetings, and AI tools live side by side, so work is faster, clearer, and less fragmented. Millions of individuals, small teams, and large companies run their work on Notion.
Notinos (our employees) are customer zero in bringing this future of work to life. We care about craft, building things that last, and the belief that great work is still fundamentally human. Our goal isn’t to ship the next feature. Each and every team of Notinos is working to set the standard for how humans work together in the AI era. From building a business’s system of record to making and managing AI agents to automating away the busy work, we care deeply about giving our customers more time for their life’s work.
ABOUT THE ROLE
Web Infrastructure builds the foundations behind Notion’s web clients so product engineers can ship fast, reliable, accessible experiences. As a junior engineer on the team, you’ll help make those experiences measurably faster and more resilient. You’ll investigate performance bottlenecks, improve how the client loads and responds, and help build tools that catch regressions earlier. You don’t need to arrive as a performance expert; we’re looking for strong fundamentals, curiosity, and a desire to learn by shipping useful work.
This role can be based in either San Francisco or New York City. We work from our offices on Mondays, Tuesdays and Thursdays (our Anchor Days) because we do our best thinking and building together in person. We’re looking for someone who’s excited to work alongside the team during those days.
WHAT YOU'LL ACHIEVE
- Use browser tools and real-world data to investigate page-load and interaction bottlenecks, then turn findings into focused improvements.
- Help build or improve performance tests, dashboards, and guardrails that make regressions easier to catch during development and rollout.
- Ship scoped improvements to client loading, rendering, asset delivery, or caching, measuring their impact and checking for regressions.
- Partner with Web Infrastructure and product engineers to land changes safely across Notion’s web clients.
- Document what you learn and share clear recommendations so teams can make better performance tradeoffs.