Designed event-driven systems (AWS SQS/S3), increased code coverage (Kotlin), automated onboarding, managed Kubernetes with GitHub Actions, and ensured security by updating dependencies.

Led event-driven architecture with AWS SQS/S3, improved system reliability, enhanced Kotlin microservice test suite, built CI/CD for Kubernetes, and integrated global onboarding with multi-region data flows.

Built scalable microservices and APIs, implemented unit tests (Jest, Jasmine), worked with GraphQL, REST, PostgreSQL, Redis, Kafka, and practiced clean architecture (DDD, Hexagonal).

Developed Node.js microservices, APIs with Nest.js, Kafka event-driven architectures, and contributed to Java (Spring Boot) and .NET projects.

Built new features and integrations for chatbot, wrote comprehensive tests (Jest), fixed bugs, and refactored code.

Developed chatbot features with Nest.js and MongoDB, implemented 100% code coverage with Jest, and performed code refactoring.