Java Backend - Design & Development (URCS)

About the Role: We are looking for a highly skilled Backend Engineer to design, build, and scale high-performance distributed systems. The role involves working with modern backend technologies including Spring Boot, Apache Kafka, Cassandra, and PostgreSQL to build resilient, scalable, and real-time data-driven applications. Key Responsibilities • Design and develop scalable, high-performance backend services using Java and Spring Boot • Build and maintain event-driven architectures using Apache Kafka • Develop and optimize data models across: o Cassandra (high-throughput, distributed workloads) o PostgreSQL (transactional systems) • Implement RESTful APIs and microservices architecture • Ensure system performance, reliability, and scalability in production environments • Work on data consistency strategies across distributed systems • Collaborate with cross-functional teams including Product, DevOps, and Frontend engineers • Participate in code reviews, architecture discussions, and technical design decisions • Troubleshoot and resolve production issues and performance bottlenecks • Write clean, maintainable, and testable code (unit/integration testing) Required Skills & Qualifications • Strong experience in Java and Spring Boot • Hands-on experience with Apache Kafka (producers, consumers, streams, event design) • Experience working with: o Cassandra or other NoSQL distributed databases o PostgreSQL or relational databases • Solid understanding of: o Microservices architecture o Distributed systems concepts o Event-driven systems • Experience in designing RESTful APIs • Knowledge of data modeling for both RDBMS and NoSQL • Familiarity with containerization (Docker) and deployment pipelines • Strong problem-solving and debugging skills Good to Have • Experience in payment systems, UPI, or financial services is highly preferred. • Knowledge of message-driven patterns (event sourcing, CQRS) • Experience in high-throughput, low-latency systems (like payments/UPI domain) • Exposure to monitoring tools (Prometheus, Grafana, ELK) • Understanding of security best practices • Experience working in Agile/Scrum environments