Android Debugging Specialist | Open Source Contributor

Fixing real-world bugs in Android apps — from crash to root cause to verified fix

Android debugging specialist focused on complex issues in real-world apps.

I isolate root causes, reproduce edge cases, and deliver minimal, reliable fixes with low regression risk.

Experienced in:

• Lifecycle edge cases (rotation, process death, state restoration)
• RecyclerView inconsistencies and stale UI state bugs
• Storage permission and filesystem edge cases (scoped storage, MediaStore)

Creator of FilmAtlas, a movie discovery Android app built with Java, MVVM, Retrofit, and Room.
Contributor to Amaze File Manager and AntennaPod — production Android apps with thousands of users.

📫 Available for Android bug fixing and debugging work — geoffrey.sisco.dev@gmail.com

• Fixed duplicate files and stale UI in drawer categories by correcting reload behavior and query filtering
• Resolved Sleep Timer crash caused by main-thread database access in playback state retrieval
• Eliminated false network failure on startup caused by out-of-range pagination logic

🔗 https://github.com/geoffreysisco/android-bug-fixes

Real-world bug fixes in active Android projects:

Material design file manager for Android

• Fixed crash when opening Recent Files without storage permission (PR #4569) — merged

• Fixed storage permission browsing flow (PR #4578) — merged

• Fixed FAB remaining hidden after returning Home from drawer views (PR #4582) — open

• Fixed file rename in drawer views (PR #4584) — open

• Fixed search not working in drawer category views (PR #4586) — open

• Fixed drawer category views not refreshing after file operations (PR #4589) — merged

A podcast manager for Android

• Fixed Sleep Timer dialog crash caused by main-thread database access in playback state retrieval (PR #8366) — merged

• Reworked dialog to use asynchronously loaded media state during UI refresh, avoiding a main-thread DB access path

Portfolio project exploring Android architecture, UI state management, and debugging workflows.

• Android movie discovery app focused on recent U.S. theatrical releases.

Explore the FilmAtlas source code:

🔗 https://github.com/geoffreysisco/FilmAtlas

Features

• Randomized discovery feed
• Favorites
• Search
• Popular and recent movies

Tech stack

• Java
• Android SDK
• MVVM architecture
• Room database
• Retrofit (TMDB API)
• Gson (JSON serialization)
• LiveData & ViewModel
• Material Design 3
• Glide

• Continue contributing to open source Android projects
• Improve FilmAtlas through refactoring, testing, and UI polish

• Available for paid Android bug fixing and debugging work