7+ years of professional experience building production web applications Expertise in backend API design (GraphQL, REST) Expertise in modern frontend development (React, Next.js, TypeScript) Deep PostgreSQL knowledge (schema design, query optimization) Proven GraphQL expertise (schema design, resolvers, optimization) Modern frontend mastery (Next.js, React, TypeScript, Tailwind CSS) Production ownership mindset (observable, testable, maintainable systems) Solid understanding of distributed systems (event-driven architectures, message queues) Track record of technical leadership (RFCs, documentation, code reviews)