Sayan User

I build production AI systems and analytics workflows end-to-end—from requirements mapping through data modelling, dashboarding in Tableau and Power BI, and UAT sign-off.

At Paradise Mind Tech, I shipped predictive ROI models in Python and SQL forecasting by channel and spend tier, and delivered it to leadership via Tableau. I also designed LLM agent workflows (Claude and Gemini APIs) orchestrated in n8n and LangGraph, with tool-calling and human-in-the-loop review for lead scoring, enrichment, and routing.

I’ve built RAG assistants over product, finance, and requirements documentation using vector databases and evaluation harnesses to replace a recurring manual analyst bottleneck with self-serve access. I automated document parsing, classification, and data extraction from unstructured vendor and CRM records using LLM pipelines, turning a manual review queue into a monitored scheduled job.

Earlier, at Reddit’s US division, I ran A/B and multivariate testing across the conversion funnel and owned SQL-backed dashboards in Looker Studio for CPA, ROAS, CLV, LTV:CAC, and retention. Before that, I served as the primary analyst for 15+ clients at Panther Digitals, building automation workflows in Zapier and HubSpot with API integrations and error handling.