Level up.Land the job.Get promoted.Skip the noise.
My mission
Empower 1,000 engineers to get promoted or land their dream job.
Mike Guoynes. Frontend lead, ex-LaunchDarkly
Frontend lead writing for mid/senior frontend devs who want to ship better systems, interview with confidence, and stop plateauing.
Featured this month
State architecture9 min read
How multiple sources of truth bite you
The first click works. The second does nothing. One value, two owners, and the desync that follows. The fix is almost always deletion.
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Performance16 min read
Virtualization vs. Infinite Scroll, and How to Build Them
Three fixes for one slow feed. Not the same fix. The three-layer model, plus a virtualized list built from scratch in plain React.
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What you'll learn