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Frontend track · 8 reviews · ~104 min

Frontend Engineer · React

Review real frontend pull requests in your framework — layout, state, accessibility, and performance — climbing from junior fixes to lead-level API design.

ReactHTML/CSSTailwind CSS
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The route

  1. Junior Steps 1–2
  2. Fix the busted responsive layout
    HTML/CSS · Tailwind CSS · 10 min
  3. Tame a leaky component effect
    React · 10 min
  4. Mid-level Steps 3–4
  5. Type the component's props properly
    React · 12 min
  6. Kill the unnecessary re-renders
    React · 12 min
  7. Senior Steps 5–6
  8. Audit the data-fetching layer
    React · 14 min
  9. Ship an accessible modal
    React · 14 min
  10. Lead Steps 7–8 PRO
  11. Review the design-system component API
    React · 16 min
  12. Guard the bundle from perf regressions
    React · 16 min