Tomas Shestakov
Software Development Engineer at Workday
Dublin, Ireland
Summary
👤
Senior🎓
Top SchoolTomas Shestakov is a Software Development Engineer with 13 years of experience building high-throughput, distributed backend systems across fintech, gaming, and analytics domains. Based in Dublin, he has recently worked at Workday and previously led backend and architecture efforts at Coin Metrics, Pixonic and Okko, where he transformed monoliths into microservices and optimized systems for massive event volumes. He specializes in Kotlin/Java, Postgres, Cassandra, Kafka and Kubernetes, with notable wins including a PostgreSQL-advisory-lock based sharding mechanism, a 16x memory reduction for production services, and non-obvious SQL query optimizations that materially improved reliability. Tomas combines deep systems-level engineering—storage engines, custom mappings, and async architectures—with hands-on performance tuning and operational deployment. He also mentors engineers and conducts interviews, reflecting a mix of technical leadership and delivery focus. An understated strength is his history of converting game-scale real-time analytics lessons into resilient, cost-effective production platforms for other industries.
13 years of coding experience
12 years of employment as a software developer
Master's degree, Faculty of Economics, Management, Law. Specialty - Management, economist manager, A, Master's degree, Faculty of Economics, Management, Law. Specialty - Management, economist manager, A at Taganrog University of Radio Engineering
Russian, English
Stackoverflow
466reputation
19kreached
13answers
1question
Github Skills (95)
testing10
junit10
integration-testing10
non-blocking10
docker-compose10
aurora10
selenium-webdriver10
java10
r9
reactive9
sql9
event-loop9
test-automation9
high-performance9
docker-container9
Programming languages (3)
Github contributions (5)
Megaprog/JMMO
Mar 2013 - Mar 2014
Contributions:101 commits in 1 year
appmetr/appmetr-s2s-java
Feb 2017 - Jan 2021
Server-to-server java library for sending events to AppMetr
Contributions:1 review, 36 PRs, 179 pushes in 3 years 11 months
eventsjsinteropjava-libraryjava-serversending
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