10k+ downloads
Calilio
A business telephony app offering a second phone number, with real-time calling and AI features.
- Role
- Mid Flutter Developer
- Built at
- Varosa Technology
- Period
- October 2024 to June 2025
What changed
- Built real-time notifications and socket handling for live call and message state
- Cut app loading time by reworking startup API calls
- Fixed the rendering issues causing visible jank in the call UI
Calilio gives businesses a second phone number with AI features layered on top. Telephony is unforgiving. A call either connects instantly and stays connected, or the product has failed.
I built the notification and socket layer that keeps call and message state live, so the interface shows what is happening on the line right now instead of what it last polled for.
The app was also making more API calls than it needed at startup. Reworking those patterns cut loading time, and the rendering issues behind the visible jank in the call UI were tracked down and fixed.
Built with
- Flutter
- Bloc
- VoIP
- GraphQL
- WebSocket

