Open to opportunities

Varun singh

@varunsingh

I build production Generative AI systems, RAG pipelines, and full-stack applications that improve relevance, latency, and reliability.

India

Message

What I'm looking for

I'm looking to build production Generative AI and full-stack products where I can improve retrieval quality, model performance, system reliability, and user-facing outcomes.

At Telesys Software, I built a production RAG knowledge assistant over 10,000+ technical documents, achieving 92% retrieval relevance versus a 61% keyword baseline. I also architected a carrier-grade CRM and signaling firewall platform, helping raise uptime from 99.2% to 99.8% and reduce release cycles from 45 to 18 minutes.

Previously at Cybernauts, I helped build flagship mobile applications for Broomees, reaching 100,000+ Play Store installs and contributing to 40% revenue growth in 90 days through four paid features. I build across Python, Java, Node.js, TypeScript, React, AWS, Docker, and Kubernetes, with hands-on work in LLM fine-tuning, multi-agent workflows, and scalable data pipelines.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Telesys Software

Feb 2024 - Present (2 years 6 months)

Engineered an internal RAG knowledge assistant using LangChain and ChromaDB across 10,000+ technical documents, reaching 92% retrieval relevance against 61% for the keyword baseline. Architected a carrier-grade CRM and signaling firewall management platform using Java, Node.js and React.js, deployed via Docker and orchestrated with Kubernetes for high availability.