7+ years experience as a Software Architect, Principal Engineer, or Senior Backend Engineer. Deep experience with system architecture, backend logic, and flow design. Strong understanding of scalable, modular, and maintainable architecture. Proven experience refactoring or rescuing complex, high-usage systems. Familiarity with Node.js / PHP / Python (any is fine as long as they understand architecture). Familiarity with SQL databases. Familiarity with Microservice patterns. Familiarity with API design. Familiarity with Event-driven systems. Familiarity with Notification systems. Familiarity with Role & permission frameworks. Familiarity with Workflow engines. Strong leadership and communication skills. Ability to simplify complex logic into clear, documented flows. Comfortable taking ownership and making architectural decisions. Ability to work directly with the CEO and senior team.