Sergei Parfenov

I build AI products and lead engineering teams. Currently CTO at Aliwio (veterinary clinic CRM) and founder of Symptomato — a telehealth platform powered by an AI health assistant. My work spans LLM systems, agentic architectures, RAG pipelines, and full-stack engineering on GCP. Previously at TripleTen, where I designed GenAI tooling and evaluation frameworks for production systems. I write about AI engineering, LLMs, and building real products with machine learning.