Mariusz Bernacki is an experienced Architect and Senior Software Developer based in the Cracow metropolitan area with over nine years in Java EE and a further four years building his own NetBeans RCP-based trading and market-insight platform, Chartsy|One. He combines deep backend expertise (Java 8, JDBC, SQL, performance tuning and concurrency) with rich desktop UI experience (Swing, JavaFX, NetBeans RCP) and practical knowledge of capital markets and the Interactive Brokers API. At Comarch he has driven architecture, code reviews, performance fixes and guided teams across loyalty and CLM systems, consistently focusing on high-throughput, thread-safe designs. Founder of his own product, he pairs entrepreneurial ownership with disciplined engineering practices such as TDD, profiling and CI tooling. Colleagues describe him as a quick learner who prefers staying close to the language and runtime rather than chasing trends, and who applies algorithmic thinking to trading and ML-infused analytics. He holds an M.Sc. in Electrical, Electronics and Communications Engineering from AGH University of Science and Technology.
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.
Request Free Trial
Mariusz Bernacki - Architect Senior Software Developer at Comarch