Role Descriptions: 1. Database-Per-Service IsolationEncapsulation: The microservice is the sole owner and modifier of its corresponding NoSQL collection or key-space (e.g.| MongoDB or Cassandra).Decoupling: Direct database joins across microservices are strictly prohibited. The service must expose well-defined RESTful APIs to share domain data with other services.2.

Eventual

Consistency &

• Transaction ManagementHandling Distributed Data: Since NoSQL databases lack cross-cluster ACID transaction capabilities| Java microservices rely on asynchronous messaging to maintain consistency.Saga Pattern: Microservices orchestrate long-running| distributed transactions by executing compensatory actions if a step fails.3. Data Access &

• Query OptimizationSchema Evolution: Taking advantage of the schemaless (or schema-adaptable) nature of NoSQL to rapidly evolve the application data model without downtime.Optimized Queries:



Using specialized NoSQL query languages| indexing strategies| and aggregation pipelines to retrieve and filter unstructured or massive-volume data with minimal latency.4. Integration &

• ConnectivityNative Clients &

• Repositories: Using Java frameworks like Spring Data MongoDB or Datastax Java Driver for Cassandra to map NoSQL documents/rows to Plain Old Java Objects (POJOs).Connection Pooling: Managing connection pools efficiently to handle high concurrencies typical of distributed environments.5. Resilience and Fault ToleranceTimeouts &

• Retries: Implementing mechanisms (using libraries like Resilience4j) to handle NoSQL cluster node failures| network partitions| or latency spikes during reads and writes.

Essential Skills: Java| Spring boot & NoSQL

Desirable Skills

Keyword

Skills: Digital : NOSQL~Digital : Microservices

Experience Required: 6-8

📌 NOSQL~Digital : Microservices (Chennai)
🏢 TCS_India
📍 Chennai