At TEO International, I build Python RAG applications with LangChain and ChromaDB, using OpenAI, Claude, and Groq-hosted LLMs. I also lead native Android development of REEFT for a Denmark-based client and engineered it to keep key functions working offline.
At ArpaTech (Pvt.) Ltd, I created Node.js backend APIs and delivered the Caremiles Android app with Kotlin and Jetpack Compose, including Stripe in-app payments. Earlier, I launched Tyslin Exchange, a crypto trading app with real-time prices and a multi-coin wallet, and developed Android and Flutter apps across agriculture, education, and other domains.

