Ranjit Singh MS

AI Builder and full-stack architect with 10+ years of hands-on production experience building AI systems, scalable cloud-native platforms, and distributed architectures. Architected multi-agent AI systems using LangChain, deployed fine-tuned open-source LLMs (Llama, Mistral) at scale on Kubernetes, and built hybrid RAG pipelines serving 200K+ SKU catalogs with sub-second latency. Migrated performance-critical services from Python to Rust, achieving sub-millisecond response times and dramatically increasing server capacity. Designed event-driven distributed systems processing millions of transactions across 90+ microservices on AWS. Published researcher in quantum physics with a first-principles approach to engineering.