Kateryna Nezdolii
Staff Software Engineer at Isovalent
Stockholm, Sweden
Summary
🤩
Rockstar🎓
Top SchoolKateryna Nezdolii is a Staff Software Engineer with 10 years’ experience designing distributed systems and building cloud-native infrastructure, currently working at Isovalent after senior infrastructure roles at Docker and Spotify. She is an active open-source maintainer and contributor—most notably to the high-profile Envoy proxy—where her work improved outlier ejection, logging, and connection-handling behavior in complex service meshes. Comfortable across backend systems and time-series/DB integrations, she has fixed critical bugs and hardened integrations in projects like Spotify’s Heroic. Based in Stockholm with a master's in IT from Kyiv-Mohyla Academy, Kateryna blends rigorous engineering with infrastructure stewardship and a penchant for pragmatic, production-first solutions.
10 years of coding experience
11 years of employment as a software developer
National University of "Kyiv-Mohyla Academy"
English, Polish, Ukrainian, Russian, Swedish
Github Skills (25)
unit-testing10
env10
c-language10
envoyproxy10
protocol-buffers10
amazon-elasticsearch10
testing10
proxy10
system-testing10
java10
bigtable10
javas10
elasticsearchquery10
aws-elasticsearch10
qtest10
Programming languages (8)
Github contributions (5)
envoyproxy/envoy
Jan 2019 - Jan 2023
Cloud-native high-performance edge/middle/service proxy
Role in this project:
Back-end Developer
Back-end DeveloperContributions:410 reviews, 24 commits, 80 PRs in 4 years
Contributions summary:Kateryna primarily focused on enhancing the Envoy proxy's outlier ejection mechanism. Their contributions involved implementing logging for outlier ejection in proto format and modifying test cases to reflect changes to the outlier ejection. Furthermore, the user worked on supporting fallback policies per subset selector and introducing a property for closing connections upon host set changes, expanding the functionality and control within the system.
nanoservicesmore-catsgolangcontainersproxy
spotify/heroic
May 2017 - Feb 2018
The Heroic Time Series Database
Role in this project:Back-end Developer
Back-end DeveloperContributions:11 commits, 20 PRs, 4 pushes in 9 months
Contributions summary:Kateryna primarily focused on fixing bugs and improving the Heroic time series database. Their contributions include fixing a NullPointerException in the ElasticSearch integration, correcting a parameter in the documentation, and skipping the host tag if null in Spotify100 consumer schema. Additionally, the user made changes to the Bigtable integration, including bumping the client version, using default credentials, and preventing the submission of empty mutations.
time-seriestime-series-databasedatabaseseries-database
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