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Notion

Software Engineer, Web Infrastructure

Notion

. Investigate page-load and interaction bottlenecks using browser tools and real-world data .

Posted 11/9/2026full-timeUnited StatesMid-LevelSenior💰 $150,000 - $168,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates strong programming fundamentals with experience in JavaScript or TypeScript, and familiarity with React or similar UI frameworks. Capable of investigating performance issues, implementing improvements, and collaborating effectively with cross-functional teams.

Highest-signal resume keywords
JavaScript ProgrammingTypeScript ProgrammingReact FrameworkPerformance ProfilingBrowser Developer Tools

ATS Keywords

Tailor your resume
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Programming FundamentalsPerformance TestingCode SplittingAsset CachingService Workers
Soft Skills
Clear CommunicationCollaborationCuriosityThoughtful Debugging
Tools & Technologies
Browser ToolsPerformance DashboardsBundlersReact Profiling
Industry Keywords
Web InfrastructureClient LoadingRenderingInteraction Responsiveness

Tech Stack

Tools & technologies
JavaScriptReactTypeScript

About the role

Key responsibilities & impact
  • Investigate page-load and interaction bottlenecks using browser tools and real-world data
  • Turn findings into focused performance improvements
  • Build or improve performance tests, dashboards, and guardrails to catch regressions during development and rollout
  • Ship scoped improvements to client loading, rendering, asset delivery, or caching
  • Measure impact and check for regressions
  • Partner with Web Infrastructure and product engineers to land changes safely across Notion’s web clients
  • Document learnings and share clear recommendations on performance tradeoffs

Requirements

What you’ll need
  • Solid programming fundamentals
  • Some experience building software with JavaScript or TypeScript
  • Familiarity with React or another component-based UI framework is helpful
  • Curiosity about how browsers work and how code affects page load, rendering, and interaction responsiveness
  • Thoughtful debugging approach: break problems down, gather evidence, and ask for help when stuck
  • Clear, kind communication and interest in collaborating across teams
  • Intellectual curiosity about AI-enabled engineering tools; thoughtful use and critical review of their output
  • Performance profiling, browser developer tools, React profiling, bundlers, code splitting, service workers, asset caching, or performance testing are a plus, not prerequisites
  • Ability to work from a Notion office on Mondays, Tuesdays, and Thursdays (Anchor Days)

Benefits

Comp & perks
  • Competitive cash compensation
  • Equity
  • Benefits
  • Reasonable accommodations during the application process