• Working on core backend services anti-fraud data layer.
• Providing and aggregating the data for the ML models
• Developed the Flink Autoscaler (to scale the capacity up and down, depending on the load) and Flink Snapshotter (to periodically create Flink snapshots)
• Reduced the build time by 50% by reducing the amount of data uploaded to the Docker daemon

Technologies used: Kotlin, Coroutines, AWS, Kubernetes, Docker, PostgreSQL, Flink, Kafka, Microservices, RESTful APIs, Terraform, Grafana, Prometheus.

• Developed backend services for tax processing platform.

Technologies used: Kotlin, PostgreSQL, AWS, Kubernetes, Docker, Kafka, Microservices, Spring Boot.

• Integrated OLX Payments with payment service providers in Latin America, enhancing the payment processing efficiency and reducing transaction failures by 20%.
• Created backend solution for OLX KYC process, improving customer verification time by 30%.
• Acted as a KYC domain expert, contributing to the overall evolution of the platform, leading to a 15% increase in platform stability and performance.

Technologies used: Kotlin, Spring Boot, PostgreSQL, AWS, Kubernetes, Docker, Java, J2EE, Hibernate, Maven, Jenkins, RESTful APIs, Microservices, JUnit, Mockito, IntelliJ IDEA.

• Added circuit breaking and optimized cache in internal media hosting service, resulting in a 25% reduction in downtime and a 40% improvement in response time.

Technologies used: Kotlin, Spring Boot, PostgreSQL, AWS, Kubernetes, Docker, Java, J2EE, Hibernate, Maven, Jenkins, RESTful APIs, Microservices, JUnit, Mockito, IntelliJ IDEA.