Blockchain Java Backend Developer - Tata Consultancy Services (TCS)

Key Responsibilities Design, develop, and maintain high‑performance Java microservices using Spring Boot and Spring Cloud. Implement secure REST and gRPC APIs, applying OAuth2/JWT authentication and fine‑grained authorization. Build and optimize distributed systems, leveraging concurrency, multithreading, and asynchronous patterns. Integrate relational (PostgreSQL/MySQL) and NoSQL (MongoDB/Cassandra) data stores, and implement caching with Redis. Develop and consume message streams and queues, ensuring reliable event‑driven communication. Apply blockchain fundamentals to design and implement distributed ledger components and smart‑contract interactions. Requirements 5+ years of Java (8+) development experience with Spring ecosystem. Proven track record in building microservices at scale, including API design and security best practices. Strong knowledge of SQL/NoSQL databases, caching, and search technologies. Hands‑on experience with message streaming/queueing systems (Kafka, RabbitMQ). Solid understanding of blockchain concepts and experience integrating blockchain solutions. #J-18808-Ljbffr