Peter Lopen
Senior Software Engineer at Fiserv
Slovakia
Summary
👤
Senior🎓
Top SchoolPeter Lopen is a senior software engineer with over a decade of experience delivering enterprise systems across insurance, banking, transport and retail, specializing in Java EE and Spring ecosystems. He has strong full-stack chops—building back-end services, batch jobs, messaging and REST APIs as well as web and desktop front ends—and recently focused on Big Data stacks using Spark, Hadoop and Hive to enable data lakes and billing migrations. Peter excels on algorithmically and performance-challenging problems rather than routine framework work, and he pairs that preference with practical DevOps experience migrating microservices to Kubernetes. Comfortable with databases from Oracle and DB2 to SAP HANA, he also brings scripting and reporting expertise (BIRT, JavaFX) and solid CI/CD tooling knowledge (Jenkins, Bamboo). Based in Slovakia, he blends legacy system rescue and modernization with a curiosity for new technologies and a track record of shipping production-grade solutions across global teams.
9 years of coding experience
15 years of employment as a software developer
M Eng. Software engineering, M Eng. Software engineering at Fakulta elektrotechniky a informatiky STU Bratislava
English
Github Skills (110)
concurrent-programming10
continuation10
force-feedback10
effects10
concurrency10
async10
zio10
concurrent10
raii10
scala10
asynchronous10
functional-programming10
driver9
composable9
executor9
Programming languages (8)
Github contributions (5)
peterlopen/zio-jdbc
Oct 2023 - Oct 2023
A small, idiomatic ZIO interface to JDBC.
Contributions:12 pushes in 14 days
peterlopen/zio
Jan 2020 - Mar 2020
ZIO — A type-safe, composable library for asynchronous and concurrent programming in Scala
Contributions:7 pushes, 2 branches in 1 month
concurrent-programmingasynchronousziofunctional-programmingconcurrency
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