Vaibhav Kumar is a software engineer with 8 years of experience building ML-driven products and generative AI systems, currently contributing to Video AI and social media features at a stealth startup in San Francisco. As a founding engineer at Big Sur AI, he shipped LLM, RAG, search/retrieval and A/B testing infrastructure to optimize sales conversion, blending research-grade modeling with product-focused experimentation. His background spans applied science internships at Amazon (including a published ACL paper on controlled text generation), research on bias and interpretability at top Indian institutes, and production ML work at Optum. He teaches and mentors—having been a TA for multiple UCLA CS courses—so he pairs technical depth with clear communication. Collected experiences across academia, industry, and startups give him a practical knack for turning cutting-edge NLP research into usable, measurable features.
8 years of coding experience
4 years of employment as a software developer
Bachelor of Technology - BTech Computer Science, Bachelor of Technology - BTech Computer Science at Delhi College of Engineering
Contributions:15 commits, 14 pushes, 1 branch in 8 months
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Vaibhav Kumar - Member Of Technical Staff at Stealth Startup