I teach machines to read, reason, answer — and pick up the phone. At Vivasoft I ship production AI: voice agents on real phone lines, RAG over healthcare trial data, agents that qualify sales leads. All on a data-engineering backbone built to survive reality.
Vivasoft's AI voice agent platform. I built the agent's memory — a low-latency RAG stack with Docling parsing, Chonkie chunking, Weaviate, and Azure multilingual embeddings — and the telephony connector bridging PSTN calls from PBX with the agent's WebRTC calls via PJSUA/SIP, so the AI talks on real mobile numbers.
Autonomous agent that evaluates every lead from Vivasoft's social media and website. Webhooks pull leads from Pabbly and WordPress, Gemini rates them against qualification criteria, qualified ones flow into the CRM via API, and the sales team gets pinged on Telegram. Hosted on GCP.
Chat system for Health Technology Assessment trial data. CSV ingestion via Azure Functions into Azure SQL, vectorized into Azure AI Search with LangChain + Azure OpenAI. Dynamic filters by country, drug, and agency with full conversation memory.
Full-stack document intelligence. Gemini-powered OCR extracts key-value pairs, bounding boxes, and confidence scores; humans validate the low-confidence tail. Template management and role-based workflows, containerized on Azure.
RAG assistant for internal support and customer queries. Led ingestion, embedding, and GPT response generation. Real-time analytics for query monitoring and feedback trends, plus a feedback loop that keeps sharpening accuracy.
In-app AI guide for an HR platform — feature help and UI navigation via vector search + GPT-4o mini. Secure isolated backend, and an OpenAI cost-monitoring dashboard so the bill is never a surprise.
Built the projects above, plus the Airflow, BigQuery and Terraform pipelines under them. Also the engineer in the room for client and sales meetings.
Modernized SQL Server jobs and stored procedures; built data pipelines powering BI and reporting across departments.
Responsive UI design and build — Flutter, Adobe XD, Figma.
Islamic University of Technology, Gazipur, Bangladesh.