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Danylo Golubtsov

@danylogolubtsov1

Senior Java Developer at Twin Harbour Interactive, building game backends that serve millions of players.

At Twin Harbour Interactive, I own the architecture and technical roadmap for a game server backend serving millions of players. I designed three Spring Boot microservices and led the migration from a legacy monolith to Kafka-based microservices.

I lead a distributed team of five developers, plan and review work, and have mentored three engineers. I work with game designers and QA from requirements through implementation and production validation.

I improved map loading times by 10x, reduced player-inventory database load by 75%, and brought deploy time down from 20 minutes to five. Earlier, at Intellias, I improved AWS S3 data removal by 90x and redesigned a bank document pipeline to handle 100x more documents per day.

Experience

Work history, roles, and key accomplishments

Current

Senior Java Developer

Current

Twin Harbour Interactive

May 2021 - Present (5 years 5 months)

Lead a technical team of 5 developers, owning the architecture of the server backend and driving modernization of legacy systems. Delivered 10x faster map loading, reduced player-inventory database load by 75%, and cut deploy time from 20 to 5 minutes.

Java Spring Boot Hibernate C#Unity Kafka TypeScript Kotlin Redis Terraform AWS Docker

Java Developer

Intellias

Mar 2019 - May 2021 (2 years 2 months)

Developed and maintained backend for a major automotive platform serving 500,000+ customers. Improved subscription service for 300,000+ subscribers and redesigned AWS S3 data removal to run 90x faster.

Java Scala S3

Junior Java Developer

EPAM

Mar 2017 - Mar 2019 (2 years)

Co-designed and built a password re-hashing module for Oracle ATG, strengthening security for millions of users. Shipped subscription features on a second platform and supported GDPR compliance across 10+ teams.

Java Oracle ATG Oracle DB