Senior Android Developer with 11+ years of experience delivering Android products end to end. Led development of 4 production-shipped commercial Android apps from scratch, from architecture and feature development to production release on the Play Store.
Principal Android Developer | Team Leader
Dec 2024 – Jul 2026
Intellias · Kraków, Poland · Remote
Leading a team of 5 Android engineers building an Android-based in-car voice assistant using gRPC and WebRTC for real-time AI communication.
Owned architecture, delivery, sprint planning, code reviews, mentoring, stakeholder communication, and security handling.
Reduced average weekly meetings per developer from 10 to 5, increasing focus time for delivery.
Built an OWASP-based dependency review script that identified 3 vulnerable dependencies and helped remediate 2 critical issues.
Founder | Android Engineer
Jan 2024 – Present
Evento!Kids · Poland · Remote
Co-founded and launched Evento!Kids, a map-based app helping parents find places and events for kids. 10k+ downloads, 3.5k+ places in Poland.
Own Android product design and implementation end to end.
Implemented custom Google Map logic supporting rotation and camera movement across screens.
Shipped to Google Play Store, growing to 10k+ downloads.
Led a mobile team of up to 6 engineers, owning technical direction, mentoring, and delivery quality for Android and iOS apps used by 500–1,000 field engineers.
Built a Kotlin Multiplatform dynamic forms library that enabled backend-driven form changes without app releases, reducing duplicate implementation.
Implemented GitLab CI and Azure DevOps workflows with automated unit tests, UI tests, static analysis, and lint/Detekt checks.
Ran regular 1:1s and career reviews, contributed to hiring, and conducted about 30–40 technical interviews.
Android Developer
Mar 2018 – Oct 2018
10Clouds · Warszawa, Poland · Remote
Designed the solution for a GIF keyboard and marketplace where users can sell their art while using GIFs from others, like GIPHY.
Implemented a custom-animated swipeable cell for RecyclerView.
Android Developer
Feb 2017 – Feb 2018
RST-IT / Software Brothers · Wrocław, Poland
Implemented OCR-based recipe extraction to parse recipe data and store it in the app, supporting a food-waste reduction product.
Android Developer
Jan 2014 – Jan 2017
appreal.net · Łódź, Poland
Supported PhotoMix+, an Android photo-editing app with over 1 million Play Store downloads, implementing sticker features, shipping updates, and fixes.
Reduced integration test runtime by 50% using Robolectric.
Created reusable sticker UI components that allowed adding the feature to another app in 1 day.