Sergiy Petrunin

Founding Engineer at WunderGraph

Bio

Sergiy Petrunin is a lead developer on WunderGraph Cosmo's query planning engine. Hired as their first engineer in 2022, he's accumulated over 14 years in backend systems with a special focus on router performance, federation behavior, and aligning composition with query planning to support large-scale, compliant federated graphs.

GitHub@devsergiy LinkedIn

everythingblogpodcast

Meet the Masterminds Behind Composition and Query Planning
PodcastGuest
February 27, 2025
Jens sits down with David and Sergiy to explore how composition and query planning evolved in Cosmo and why these two processes are inseparable.
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How Normalization affects Query Plan Caching in GraphQL Federation
Blog
January 27, 2025
Explore how normalization boosts query plan cache hits in GraphQL Federation. Learn about three normalization forms and how they improve performance and analytics.
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