Senior Java Backend Engineer/ Java Microservices Engineer

Please note, this role is not able to offer visa transfer or sponsorship now or in the future* Overview We are looking for a skilled Java Engineer to design and deliver scalable, cloud-native microservices within our Connected Services platform. You will own the full software lifecycle — from architecture through deployment — building robust APIs and event-driven systems that power real-time device and data integrations. Responsibilities Design and develop RESTful and event-driven microservices using Java 17+ and Spring Boot 3 Build and maintain integrations with IoT devices, third-party APIs, and connected platforms Implement messaging pipelines with Kafka or RabbitMQ for real-time data streaming Write clean, testable code with JUnit, Mockito, and integration test suites Collaborate with product and DevOps on CI/CD pipelines (Docker, Kubernetes, Helm) Participate in architecture reviews and define best practices for the team Required Skills Experience with Java (Java 17+ preferred) and Spring Boot ecosystem Strong knowledge of Spring Cloud, Spring Security, and Spring Data JPA Experience with Kafka, RabbitMQ, or similar messaging technologies Familiarity with OAuth 2.0, JWT, and API security patterns Proficient with SQL/NoSQL databases (PostgreSQL, MongoDB, Redis) Hands-on with Docker and Kubernetes in cloud environments (AWS, GCP, or Azure) Nice to Have Experience with MQTT, AMQP, or CoAP for IoT device communication Knowledge of OpenAPI / Swagger specification and contract-first design Exposure to service mesh (Istio, Linkerd) and observability tooling Contributions to open-source Java or Spring Boot projects Compensation: - $70,000 to $105,000 + COLA and this position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans. Application will be accepted by 7/30/2026