Kirill korshunov

I’m a Java backend developer with 4+ years of commercial experience building microservices and event-driven systems. I work across the full development cycle, from requirements analysis and solution design to implementation, testing, deployment, and production support.

In my recent role, I led the integration of 9 internal services into a unified workflow, designing concurrent service interactions to ensure stable processing under high throughput. I also automated a refund calculation system for contract terminations and improved delivery processes by introducing CI/CD pipelines that reduced deployment time from 60 to 10 minutes.

I care about reliability and maintainability in distributed systems. I’ve strengthened service security by configuring Kubernetes network policies for ingress and egress traffic, and I focus on performance improvements like reducing processing time under peak load.

Previously, I built a centralized news feed using Kafka and Redis, and implemented an event-driven notification system for Telegram, SMS, and email delivery. I’ve also delivered asynchronous file uploads to Amazon S3, optimized performance with Redis caching, and mentored a new developer to accelerate onboarding.