From scratch, designed and implemented an authentication protocol for a navigation app and built high-load microservices for streaming processing of taxi traffic data.

Designed an asynchronous routing API service and refactored legacy routing services to clean architecture, improving maintainability and reducing feature delivery time.

Refactored and optimized API endpoints and database transactions in the order assembly system, cutting p95 latency of critical business scenarios. Performed load testing and on-call support, promptly diagnosing and resolving critical incidents.

Developed and enhanced the internal cloud platform, enabling streamlined resource provisioning (databases, kafka topics, etc.) and efficient service deployments. Designed and built one-click system to migrate services between Kubernetes namespaces and clusters.

Actively mentored and onboarded interns, ensuring smooth integration into team workflows and projects.