Azay Karimli

At Paggio Srl, I architect data monitoring, payment, and IoT platforms using Python, FastAPI, Laravel, PostgreSQL, Redis, Docker, and Domain-Driven Design. I lead technical decisions for SEPA SDD processing, including database partitioning, event-driven queues, multi-MID routing, and secure cloud deployments. I built a VOP payment system for batch financial transactions with idempotency, retries, and SEPA return-code handling. I also developed a FastAPI risk analytics microservice for BIC-level chargeback analysis and IBAN verification scoring. For connected assets, I've developed real-time IoT services, REST APIs, WebSocket monitoring, and Redis and Kafka pipelines supporting more than 100 devices. PostgreSQL optimization and Redis caching reduced API response times by 40%. Previously at MyPass, I built backend microservices and integrations for hospitality ticketing and resort access workflows. I enjoy applying DDD, test-driven development, and practical mentoring across backend, frontend, data, DevOps, QA, and product teams.