Full-stack Engineer

I'm a full-stack engineer with 10+ years of building and modernizing enterprise applications — most of them as a remote contractor for US companies. My core is backend: Java, Kotlin, and Spring Boot, with event-driven microservices on Apache Kafka. At a fintech platform, I built features across the credit card authorization services in a Kafka-based ecosystem — orchestration, authorization, auditing — and built the batch processing service for ATM-generated files from scratch. On the frontend, Angular (9 through 19, including Signals) and React. I've shipped in banking call centers, consumer credit, ISP and utility platforms, food delivery, and content management. Domains where a bug is expensive, and correctness beats speed. Lately I've been building with AI, not just talking about it: an appointment-scheduling agent over WhatsApp with the Gemini API — books, reschedules and cancels in natural language, syncs both ways with Google Calendar. Started in NestJS, migrated to Python/FastAPI. Open to full-stack, backend, or frontend roles.