Build and ship full-stack SaaS features across database, API, and interface layers. Own work end to end, including scoping, implementation, testing, rollout, and post-release operations. Collaborate with product, design, and support; improve system reliability and performance; review code; participate in on-call; and mentor teammates. The role uses Node.js, TypeScript, React, PostgreSQL, relational databases, SQL, observability tools, and AI-assisted development workflows.