Przemysław Kruglej
Owner at kursjava.com
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolPrzemysław Kruglej is a software engineer and owner of kursjava.com with nine years of experience building backend systems in Java, Kotlin and Python and working with Spring, PostgreSQL and Redis. He has delivered enterprise projects for clients like ViacomCBS and Empik, and earlier in his career focused heavily on PL/SQL and database-intensive applications. Based in Warsaw, he combines hands-on development with teaching: he authors a beginner-friendly Java book and maintains a technical blog, reflecting a passion for developer craftsmanship. His background spans full-stack and integration work (React/Redux, Salesforce, Angular) as well as tooling and automation, showing versatility across languages and architectures. Notably, he publishes practical guidance on what it takes to be a successful developer, which complements his real-world delivery experience.
8 years of coding experience
9 years of employment as a software developer
Master's degree, Computer Science, 4,62, Master's degree, Computer Science, 4,62 at Polsko-Japońska Wyższa Szkoła Technik Komputerowych w WarszawieComputer Science, Computer Science at University of Westminster
Polish, English
Stackoverflow
8,043reputation
1.3mreached
257answers
0questions
pivot
top-5%
plsql
top-5%
jdbc
top-5%
sql
top-1%
oracle
top-1%
Github Skills (16)
oracle-11g10
oracle10
sql10
pivot9
jdbc9
oracle-10g9
plsql9
sqlplus6
stored-procedures6
database6
subquery6
mysql6
java6
maven3
javascript1
Programming languages (1)
Github contributions (5)
przemyslaw-kruglej/kursjava_przyklady
Apr 2019 - Dec 2020
Przykłady i odpowiedzi do zadań dla kursu programowania w języku Java od podstaw
Contributions:55 commits, 53 pushes, 1 branch in 1 year 7 months
dlajava
przemyslaw-kruglej/java-w-przykladach-rozwiazania-zadan
Mar 2023 - Mar 2024
Contributions:71 pushes, 1 branch in 1 year
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