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Vocale – Messenger App Modernization
Role: Mobile Performance Specialist
Industry
Social Media / MessagingDuration
3 monthsClient
VocaleKey result
-85% application crashes on Android systemsBusiness Challenge
Business Challenge
The existing messaging application required regular updates and implementation of new features.
My Approach & Architecture
My Approach & Architecture
Conducted a detailed performance audit on the Flutter codebase. Tracked down and plugged memory leaks in the audio recording libraries. Refactored real-time audio buffers, significantly lowering CPU loads.
Core Features
Core Features.
Moduł 01
Live Audio Recording
Clean voice recording dashboard with live decibel-based audio waveform visualization.
Moduł 02
Lazy-loaded Group Chats
Smooth group feed handling thousands of text blocks using lazy list rendering.
Tech stack used
Tech stack used.
Flutter
Audio Processing
Result & Testimonial
"System stability was our worst headache. Maciej sorted the codebase in 3 months and cleared issues we fought with for a year."
Karol SzewczykLead Developer Vocale
Key result
-85% application crashes on Android systemsKey parameter of deployment success
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