Sergiy Dybskiy

Developer Experience Engineer

Sergiy Dybskiy is a Developer Experience Engineer at Sentry. He’s an avid learner and serial tinkerer, always looking for ways to make things make sense. In Toronto, he organizes and actively takes part in community events, and online he runs a YouTube channel where he shares (hopefully) helpful tips on all kinds of technology topics

Blogs Published by Sergiy Dybskiy

Not everything that breaks is an error: a Logs and Next.js story

Logs
Stack traces are great, but they only tell you what broke. They rarely tell you why. When an exception fires, you get a snapshot of the moment things went sidew...
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Eliminating N+1 Queries with Seer’s Automated Root Cause Analysis

Generative AI
When I was working at Shopify, major traffic moments were our Superbowl. We initiated code-freeze weeks before to make sure merchants wouldn’t have any unexpect...
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Introducing webvitals.com: Find out what’s slowing down your site

Performance Monitoring
Developers don’t need another “run this tool, stare at a number, and feel bad about it” website. So we built something different. WebVitals helps you analyze, o...
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The core KPIs of LLM performance (and how to track them)

AI Observability
A few months ago, I built an MCP server for Toronto’s Open Data portal so an agent could fetch datasets relevant to a user’s question. I threw the first version...
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