I’m Siddhesh Sonar, a Computer Software Engineering student at Government Polytechnic Mumbai (Aug ’24 – Jun ’26) and a self-taught Android + AI developer with over 5 years of practical build/ship experience. I’ve worked across custom AOSP modules, shipped production apps, and architected ToolNeuron — an offline, privacy-first AI chat and plugin ecosystem for Android secured by hardware-backed encryption.
Past Internships: DOI Soft Tech · Crimson Insights · HealthVatika Focus Areas: On-device AI · Plugin Systems · Secure Android Runtime Current Project: ToolNeuron — offline AI chat + plugins (Web Search plugin, runtime model switching, model store, in-app updates) Exploring: Kotlin Multiplatform · Rust · Whisper STT · TensorFlow Lite
| Category | Technologies |
|---|---|
| Languages | Kotlin · Java · Python · C++ (JNI) |
| Android | Jetpack Compose · AOSP · Android SDK · NDK/JNI |
| Frameworks | Coroutines · MVVM · LiveData |
| Tooling | Git · GitHub Actions · Retrofit · RoomDB · Firebase |
| AI/ML | llama.cpp (JNI) · TensorFlow Lite · Whisper STT · ONNX Runtime |
ToolNeuron — Offline AI chat + modular plugins
- Local chat (no cloud dependency)
- Web Search plugin (tool-calling)
- Runtime model switching
- In-app update mechanism
- GGUF model import + param tuning
- Model Store for curated downloads
- Hardware-grade encryption (Android KeyStore)
- Plugin manager with sandbox validation
| Project | Description | Link |
|---|---|---|
| ToolNeuron (prev. NeuroVerse) | Offline AI chat for Android with a secure plugin framework (web search, runtime model switch, model store, in-app updates) | Repo |
| ToolNeuron System Plugins | First-party plugins for ToolNeuron (including Web Search plugin) | Repo |
| SPB | Lightweight, browser-first tool for designing well-structured AI prompts | Repo |
| MaterialSplitButton | Material 3 SplitButton recreation for Jetpack Compose | Repo |
| Ridan AI | Personal AI assistant for Android | Play Store |
- LinkedIn: linkedin.com/in/siddhesh-sonar-7840a7260
- GitHub: github.com/Siddhesh2377
- Email: siddheshsonar2377@gmail.com
Open to collaborations, sponsorships, and discussions on advancing on-device AI development.
Crafted for developers, builders, and open-source collaborators.