Technical Skill: PostgreSQL , NodeJS , TypeScript , Java , Spring , MongoDB , ORM , API , Distributed Systems , Docker , Redis , Architecture , Golang , CQRS , Apache Kafka , Caching , AWS , Spring Boot , Kubernetes , GraphQL , Microservices , Fintech , Blockchain , Web3 , gRPC , NestJS , Cloud Infrastructure , GitOps , CI/CD , TypeORM , Columnar , SAGA , CKA , Prisma