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Anup User

@anupuser1

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I build fault-tolerant full-stack systems, serverless APIs, and real-time data products.

India

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What I'm looking for

I'm looking to build reliable, high-impact full-stack and backend products, especially systems involving APIs, data pipelines, real-time workflows, and cloud infrastructure.

At Adden.ai, I build multi-service ad-ingestion and tagging pipelines handling 50+ campaigns a day, designed to remain reliable through partial system failures.

I optimized PostgreSQL reporting paths from 30 seconds to 7 seconds and built React and TailwindCSS dashboards that cut manual campaign-review turnaround by 20%.

I've also shipped AWS Lambda REST services at Duco Consultancy and built Polymath, a RAG knowledge assistant with hybrid search, citation verification, and durable ingestion workflows.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Adden.ai

Sep 2025 - Present (1 year)

Built a multi-service ad-ingestion and tagging pipeline handling 50+ campaigns/day with rate limiting, exponential-backoff retries, circuit-breaking, and idempotent job handling. Modeled PostgreSQL schemas via SQLAlchemy and optimized slow query paths to cut report generation latency from 30s to 7s, and built a React.js + TailwindCSS operator dashboard that reduced manual review turnaround by 20%.