Maxim Korolyov
Senior Engineering Manager at RedCore
Gdansk, Pomeranian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolMaxim Korolyov is a Senior Engineering Manager with 11 years of experience building cloud-native, scalable backends and developer workflows from Poland. He has driven measurable performance gains—cutting CI/CD times by over 75%, accelerating feature delivery by 30%, and achieving global homepage loads of ~200ms—while leading teams through microservices, geo-replication and SSO designs. His hands-on background spans Go, Scala and distributed systems, and includes contributions to notable open-source projects like Apache PredictionIO and the NATS Go client where he improved recommendation and connection-handling logic. Maxim combines pragmatic engineering with product-aware architecture and a track record of hiring and growing backend teams to support rapid business expansion.
11 years of coding experience
12 years of employment as a software developer
Bachelor's degree, Computer Software Engineering, Bachelor's degree, Computer Software Engineering at Belarusian National Technical University
English
Stackoverflow
31reputation
844reached
1answer
2questions
Github Skills (20)
recommendation-system10
nat10
predictionio10
testing10
machine-learning10
scala10
go10
natsio10
error-handling10
cloud-native10
microservices-application9
pubsub9
data-processing9
microservices9
big-data8
Programming languages (9)
Github contributions (5)
apache/predictionio
Mar 2015 - Aug 2015
PredictionIO, a machine learning server for developers and ML engineers.
Role in this project:
Backend Developer
Backend DeveloperContributions:34 commits, 5 PRs, 14 comments in 5 months
Contributions summary:Maxim implemented a date filter functionality within the `ALSAlgorithm.scala` file, suggesting modifications to the core recommendation algorithm. They also made changes to the `DataSource.scala` and `Engine.scala` files, indicating work on data ingestion and engine configuration. Furthermore, the user updated the `import_eventserver.py` script, adding support for loading MovieLens data, suggesting involvement in data integration and event processing. The user's commits demonstrate focused efforts on modifying the recommendation engine's core logic, data handling, and event import processes.
pythondata-sciencemachine-learningmlopsbig-data
nats-io/nats.go
May 2019 - May 2019
Golang client for NATS, the cloud native messaging system.
Role in this project:Backend Developer
Backend DeveloperContributions:6 commits, 2 PRs, 23 comments in 3 days
Contributions summary:Maxim primarily contributed to the core functionality of the NATS Go client. They implemented and modified error handling mechanisms, specifically related to disconnected and reconnect events, by adding the `ConnErrHandler` (renamed from `DisconnectErrHandler`) to manage asynchronous events. Additionally, the user made changes to testing files, ensuring proper callback triggering and behavior for various reconnection scenarios, server shutdown, and related edge cases, showing a strong understanding of connection management within the NATS ecosystem. The user also fixed documentation typos and performed code cleanups.
golangnatsmessaging-systemcloud-native-architecturesnative-messaging
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