Results-driven Senior Backend Engineer with extensive experience designing and implementing scalable, high-performance backend systems. Skilled in architecting microservices, building domain services, orchestration layers, and backend-for-frontend (BFF) solutions, and delivering robust REST APIs. Proficient in Java 21, Spring ecosystem, OAuth2, ISAM authentication, and API design with Swagger/OpenAPI. Strong expertise in Kafka-based event-driven architectures and NoSQL databases (MongoDB). Adept at debugging complex distributed systems, optimizing performance, and collaborating with cross-functional teams to deliver secure, maintainable, and business-aligned solutions. Passionate about creating clean, well-documented code and enabling seamless integration across services.