Łukasz Wasylkowski
Android Developer at Duck Duck Go, Inc.
Wrocław, Lower Silesian Voivodeship, Poland
Summary
🤩
RockstarŁukasz Wasylkowski is an Android developer with 11 years of hands-on experience building reliable mobile applications from Wrocław, Poland. He combines deep platform knowledge with backend sensibilities, contributing to the widely used Apollo Kotlin GraphQL client where he improved coroutine memory handling, error response caching, and JSON handling for sealed classes. That open-source work highlights his focus on stability, efficient data management, and interoperability between Android clients and GraphQL backends. Practical and detail-oriented, he brings both production-grade coding and testing improvements to complex libraries, making him a strong bridge between client-side UX needs and backend integration challenges.
11 years of coding experience
Github Skills (9)
kotlin10
graphql10
caching10
coroutines10
wordpress-graphql10
wpgraphql10
android10
javas8
java8
Programming languages (17)
Github contributions (5)
apollographql/apollo-kotlin
Apr 2020 - Nov 2020
:rocket: A strongly-typed, caching GraphQL client for the JVM, Android, and Kotlin multiplatform.
Role in this project:
Backend Developer
Backend DeveloperContributions:7 reviews, 4 commits, 5 PRs in 7 months
Contributions summary:Łukasz primarily contributed to the core functionality of the Apollo Kotlin client, including fixing potential memory leaks related to coroutines, adding features to cache error responses, and fixing JSON representation for sealed classes, ensuring that enum values are correctly handled. The user's changes involved modifying the core client library and related testing infrastructure, indicating a focus on improving the library's stability, functionality, and integration with the GraphQL ecosystem. Additionally, the user's contribution to improve cache keys shows attention to efficient data management.
graphql-clientapollographqlkotlin-multiplatformcachingandroid
lwasyl/ftl-tests-results-action
Jul 2023 - Mar 2025
A Github Action to parse Firebase Test Lab tests results
Contributions:2 releases, 1 review, 46 PRs in 1 year 8 months
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.