Constantin-eugen Costescu
Java Software Developer at finAPI
Munich, Bavaria, Germany
Summary
👤
Senior🎓
Top SchoolConstantin‑Eugen Costescu is a Java software developer based in Munich with 10 years of experience building scalable backend systems and microservices, currently contributing at finAPI. He combines strong theoretical foundations in data structures and algorithms with hands‑on expertise in Java and Python, having implemented multiple REST microservices for satellite mission control and production systems. His work spans performance tuning (custom DB indexes), test automation and code quality—evident from contributions to the well-known cactoos Java library where he modernized and simplified the test suite. He has teaching experience at Technical University Munich, improving student engagement and course materials for software engineering patterns and project management. Comfortable across the stack, he also has early experience in game development with Unity/C#, reflecting a pragmatic curiosity for diverse problem domains. Reliable, detail‑oriented and focused on maintainability, he favors clean, efficient solutions that scale.
10 years of coding experience
2 years of employment as a software developer
"Mircea cel Batran" National CollegeMaster’s Degree Computer Science, Master’s Degree Computer Science at Technical University of MunichPOLITEHNICA București National University for Science and Technology
Romanian, German, English
Github Skills (8)
testing10
oop10
javas10
java-libraries10
junit10
java10
oop-library9
matcher9
Programming languages (1)
Github contributions (5)
yegor256/cactoos
Jul 2020 - Aug 2020
Object-Oriented Java primitives, as an alternative to Google Guava and Apache Commons
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:8 commits, 2 PRs, 8 comments in 13 days
Contributions summary:Constantin-eugen primarily contributed to improving the test suite within the cactoos Java library. Their work focused on removing obsolete testing dependencies, updating assertion messages, and refactoring test code for better readability and maintainability. These changes involved modifying existing tests, updating test assertions, and ensuring the continued reliability of the test infrastructure. The commits reflect an effort to keep the test suite current and free of unnecessary dependencies.
commonsgoogle-guavajava-libraryapacheoop-library
ccostin93/java-inspections
Jul 2020 - Aug 2020
Contributions:23 pushes, 10 branches in 19 days
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