Backend software engineer with about four years of experience building REST APIs, SaaS backends, third-party integrations, and payment workflows. Stack: Node.js, Express, NestJS, TypeScript, MongoDB, PostgreSQL, and Redis. Experience spans healthcare, education platforms, CRM automation, and communication systems, including Stripe, HubSpot, Twilio, Retell AI, Firebase, AWS SES, Redox, FHIR, and ModMed. I handle new backend development plus debugging, refactoring, and performance work on existing systems, focusing on business workflow first to deliver maintainable, production-ready backends.... Saiba mais