Klaus Christiansen
Senior Java Developer at Flatpay
Hvidovre, Capital Region of Denmark, Denmark
Summary
👤
Senior🎓
Top SchoolKlaus Christiansen is a Senior Java Developer with 12 years of hands-on experience building and modernizing large, mission-critical backend systems using Java, Spring Boot, Gradle and Docker. He has driven practical improvements like migrating 130-module builds from Ant to Gradle (cutting build time from 15 to 5 minutes), introduced OWASP dependency reporting, and implemented CI/CD practices with Jenkins. Comfortable in message-driven, microservice and DDD architectures, he has delivered integrations for payments (Adyen), card terminals and complex ERP platforms, and contributed to a major EU VAT reporting program (MOMS One Stop Shop). A dedicated team player and mentor, Klaus thrives in cross-functional agile teams and enjoys lifting colleagues’ skills while tackling third-level support and legacy-to-modernization projects. He blends deep tooling knowledge—ANTLR grammars, parsers and source-migration engines—with a pragmatic focus on measurable operational gains.
12 years of coding experience
18 years of employment as a software developer
Kursus i Spring - Spring Boot - Foundation Computer Programming, Kursus i Spring - Spring Boot - Foundation Computer Programming at Teknologisk institutAP Computer science, AP Computer science at Niels BrockSun Ceritfied Java Developer Java, Sun Ceritfied Java Developer Java at Sun Certified Java DeveloperSun Ceritfied Java Programmer Java, Sun Ceritfied Java Programmer Java at Sun Certified Java ProgrammerHF matematik, HF matematik at Frederiksberg HF
English, Danish
Stackoverflow
187reputation
9kreached
2answers
7questions
Github Skills (127)
findbugs10
amiga10
image-gallery10
groovy10
java10
installer10
kotlin10
gradle10
spotbugs9
static-analysis9
pi9
cli9
powershell9
web-application9
photo9
Programming languages (11)
Github contributions (5)
kec2/FilmDatabase
Aug 2022 - Jun 2024
Contributions:30 pushes, 1 branch in 1 year 10 months
kec2/plugin.audio.tidal2
Aug 2023 - Dec 2024
TIDAL music streaming addon for Kodi
Contributions:2 pushes, 2 branches in 1 year 4 months
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