Michał Pieróg
Senior Java Software Engineer at eSkill
Cracow Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolMichał Pieróg is a Senior Java Software Engineer with 14 years of experience building and optimizing high-throughput, data-intensive systems across fintech, HR SaaS, and event-streaming platforms. He has shaped architecture and performance for products at companies like Maxio, Keen (acquired by Chargify), and Pegasystems, with deep hands-on expertise in Java, Spring (WebFlux), Kafka, Cassandra, Elasticsearch and cloud-native tooling. Comfortable from design to performance testing and operational tuning, he repeatedly focuses on data platforms and real-time streaming solutions that power analytics and billing use cases. Based in the Cracow metro area, he pairs an M.Sc. in Applied Computer Science with a practical curiosity for emerging tech—often blending backend engineering with pragmatic system design and optimizations that aren’t immediately visible in product features.
14 years of coding experience
9 years of employment as a software developer
Master of Science (M.Sc.), Applied Computer Science (Software Engineering), 5.0, Master of Science (M.Sc.), Applied Computer Science (Software Engineering), 5.0 at Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Polish, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (27)
analytics-api10
event-data10
keen-io10
charts9
visual-analytics9
php9
data-explorer9
data-visualization8
api8
analytics8
web-analytics8
data-exploration8
visualization8
android-sdk6
java5
Programming languages (8)
Github contributions (5)
maxio-com/developer-portal
May 2023 - Jul 2024
Contributions:7 releases, 220 reviews, 206 PRs in 1 year 2 months
maxio-com/ab-python-sdk
Feb 2024 - Jan 2025
AdvancedBilling Python SDK
Contributions:4 releases, 7 reviews, 13 PRs in 11 months
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