Łukasz Jachym
Senior Python Developer at Keepsafe Software
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolŁukasz Jachym is a Senior Python Developer with 11 years of experience building cloud-native systems and a track record of shipping backend services used by millions of users. At Keepsafe he designed a secure block storage backend and implemented cost-saving data-deletion logic that halved operational storage expenses, alongside email, support tooling, and integrations across AWS services. His background spans performance-focused backend work (ETL optimization at Amadeus) to full-stack and mobile contributions as a freelancer, demonstrating comfort across Python, Node.js, C++ and front-end frameworks. He experiments with ML and blockchain in his free time and routinely builds Kubernetes clusters and runs GPU-backed models like Llama2, reflecting a hands-on approach to cutting-edge infrastructure. Łukasz also contributes to open-source tooling for mobile apps, such as improving an Android resource-remover utility, showing attention to practical developer ergonomics and app size optimization. Based in Krakow, he combines research-rooted numerical simulation experience with production-grade engineering for reliable, cost-effective systems.
11 years of coding experience
8 years of employment as a software developer
MSc. Electrical Engineering, MSc. Electrical Engineering at Politechnika Krakowska im. Tadeusza Kościuszki
English, Polish, French
Github Skills (9)
resource-management10
python10
android10
xml-parsing9
unit-testing8
testing8
unit-test8
gradle7
gradlew7
Programming languages (3)
Github contributions (5)
KeepSafe/android-resource-remover
Apr 2016 - Sep 2016
A simple utility to remove unused resources in your Android app to lower the size of the APK. It's based on the Android lint tool output.
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:6 commits, 4 PRs, 3 pushes in 5 months
Contributions summary:Łukasz contributed to the `android-resource-remover` repository by fixing bugs and adding features related to unused resource management within Android applications. They addressed an issue where strings referenced in the manifest were being removed. They also added support for parsing issues related to extra untranslatable strings, and updated tests. Furthermore, the user added support for the latest Gradle project structure.
lintunusedapkandroidandroid-app
KeepSafe/translation-real-time-validaton
May 2016 - Oct 2019
Real time content validation tool to notify translators about errors right away.
Contributions:6 PRs, 15 pushes, 6 branches in 3 years 5 months
translatorsvalidation-toolvalidationreal-time
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