Roland Praml
Full Stack Engineer at FOCONIS AG
Tittling, Bavaria, Germany
Summary
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RockstarRoland Praml is a Full Stack Engineer with 12 years of experience, currently building software at FOCONIS AG from Tittling, Bavaria. He combines backend-focused Java expertise with full-stack delivery, having contributed performance-sensitive fixes and refactors to high-profile open-source projects like Lombok and the Ebean ORM. His contributions show a deep attention to platform-specific behavior, memory management, and low-level optimizations—replacing StringBuilder hot paths with char arrays and resolving Windows temp-path bugs and annotation-handling issues. Roland is comfortable navigating bytecode/classloader nuances and database interaction edge cases, which helps him diagnose hard-to-reproduce production problems. Colleagues benefit from his pragmatic approach to efficiency and reliability across the stack.
12 years of coding experience
Github Skills (16)
annotation-processing10
javas10
orm10
object-mapping10
bytecode-manipulation10
performance-optimization10
database-design10
java10
annotations10
sql9
sql-server6
db26
h26
postgresql6
mysql6
Programming languages (8)
Github contributions (5)
ebean-orm/ebean
Jul 2016 - Aug 2022
Ebean ORM
Role in this project:
Back-end Developer
Back-end DeveloperContributions:126 reviews, 229 commits, 409 PRs in 6 years 1 month
Contributions summary:Roland contributed to bug fixes and improvements within the Ebean ORM project. Their commits addressed issues related to platform-specific behavior on Windows (specifically with temporary file paths) and the handling of annotations, particularly those related to database interactions such as unique constraints, foreign keys, and indexes. They also improved the handling of the underlying database framework to prevent memory leaks.
sqlserverhanaebeanjdbcorm
projectlombok/lombok
Jul 2018 - Jul 2018
Very spicy additions to the Java programming language.
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 11 commits, 18 PRs in 11 days
Contributions summary:Roland primarily contributed to the optimization of the Lombok library's codebase, focusing on improving performance and efficiency. Their work included refactoring code to replace `StringBuilder` with `char` arrays in performance-critical methods, reducing the number of method calls, and optimizing the `to/fromQualifiedName` methods. Additionally, the user refactored code to share the same class loader, demonstrating skills in Java bytecode manipulation and optimization of the Lombok library.
java-programmingjsinteropadditionsbuilderjava-17
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