Miłosz Chojnacki
Senior Java Developer at Lufthansa Systems
Gdansk Metropolitan Area Poland
Summary
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SeniorMiłosz Chojnacki is a Senior Java Developer and SAFe® System Architect with 7 years of focused experience in enterprise Java, integration platforms and court/justice-domain systems. He currently works on flight-planning fuel policy at Lufthansa Systems and previously led architecture and migrations from legacy stacks to Java/OSS for Currenda, where his solutions serve roughly 70% of Polish courts and 35,000 users. His background spans end-to-end product work—identity federation (Keycloak/OIDC), rule engines (JBoss Drools), integration platforms (Apache Camel/ServiceMix) and high-performance transactional systems—paired with hands-on delivery from PowerBuilder-era systems to modern Spring/Docker/Postgres stacks. Known for bridging technical strategy with R&D and PoCs, he has driven concepts like externalized legal-knowledge storage and central Active Directory federation for the Ministry of Justice. Pragmatic and detail-oriented, he combines deep legacy-system migration experience with a penchant for designing auditable, rule-driven architectures in regulated domains. An engineer who once summarized his GitHub bio as "segmentation fault," he brings a quiet humor to complex, safety-critical projects.
7 years of coding experience
20 years of employment as a software developer
English, Polish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (6)
android-app8
mobile-application6
neural-network4
database3
python1
nodejs1
Programming languages (8)
Github contributions (5)
Buzeqq/potential-train
Oct 2022 - Jan 2023
Contributions:3 reviews, 43 commits, 6 PRs in 3 months
Buzeqq/TERMINAL
Mar 2023 - Nov 2024
Multifunctional database for information gathering in a scientific research laboratory
Contributions:21 reviews, 112 PRs, 271 pushes in 1 year 8 months
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