Jędrzej Kula - Researcher at Cardinal Cryptography

Jędrzej Kula

Researcher at Cardinal Cryptography

Cracow Metropolitan Area Poland

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Summary

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Senior

🎓

Top School

Jędrzej Kula is a researcher and software engineer based in the Cracow Metropolitan Area with nine years of hands-on experience in algorithms, low-level programming, and graph theory. He combines academic rigor from Jagiellonian University (BSc and ongoing MSc) with practical contributions to high-profile open-source Android projects at Facebook, notably adding prefetching and native rounding optimizations to the Fresco image library and extending native-loading flexibility in SoLoader. At Cardinal Cryptography and Aleph Zero he applies research-grade thinking to applied problems, bridging cryptographic and blockchain-adjacent systems with systems-level engineering. Comfortable across mobile, native, and backend code, he favors clean abstractions and performance-minded changes that enable testability and modular loading. Colleagues would describe him as a curious problem-solver who moves easily between formal research and pragmatic engineering.

9 years of coding experience

High School Diploma, High School Diploma at The August Witkowski 5th High School

Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Jagiellonian University

Master's degree, Computer Science, Master's degree, Computer Science at Uniwersytet Jagielloński w Krakowie

English, Polish

Github Skills (9)

javas10

androidx10

native-code10

android10

image-processing10

java10

testing9

reflection8

reflections8

Programming languages (6)

TypeScriptJavaRustGoPythonKotlin

Github contributions (5)

facebook/fresco

Jul 2019 - Oct 2019

An Android library for managing images and the memory they use.

Role in this project:

Mobile Developer (Android)

Contributions:43 commits, 4 PRs, 3 comments in 3 months

Contributions summary:Jędrzej contributed to the Fresco Android image library by adding new prefetch functionality to the encoded cache and modifying existing code for better AndroidX support and adding Java rounding methods. They changed the ExifInterface class to use an AndroidX Support Library equivalent, but then backed out those changes. They also added a native version of corner rounding and speed up the native code for rounding to a circle.

android-library

facebook/SoLoader

Aug 2019 - Oct 2019

Native code loader for Android

Role in this project:

Back-end Developer

Contributions:13 commits in 1 month

Contributions summary:Jędrzej primarily focused on modifying and extending the `NativeLoader` component within the `facebook/soloader` repository, which is a native code loader for Android. Their contributions involved adding abstractions, integrating different loading mechanisms (SoLoader, System loader) and implementing test functionality. These changes introduced flexibility in loading native libraries, along with adding test mode functionality. Additional commits included fixing build configurations and annotating the `SoLoaderDelegateImpl` with `DoNotStrip` for reflection usage.

androidnative-code

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