Keval Unagar

AI / Full-Stack Engineer

Freelancing Career • Autônomo

Dec 2020 - Present • 5 yrs 5 mos

Working on web applications, SaaS platforms, and AI-powered features for startups and product teams. My work focuses on building scalable systems, integrating AI capabilities, and developing reliable full-stack applications used in production environments. Key areas of work include: • Full-stack development using React, Next.js, Node.js, and TypeScript • Backend APIs and services with NestJS, Express, and FastAPI • Database design using MongoDB, PostgreSQL, and MySQL • Integrating AI features using Large Language Models (LLMs), RAG systems, and AI assistants • Building AI chatbots, automation workflows, and in-app assistants • Third-party API integrations, authentication systems, and backend architecture • Debugging, performance improvements, and maintaining production applications Experience building MVPs with Bubble.io and no-code tools to help startups launch products quickly before expanding into custom full-stack solutions.