Mayank Kunwwar

• Designed and developed an internal banking tool from scratch, improving core process efficiency • Implemented API monitoring metrics to measure latency and improve log tracing • Built secure email notification APIs with automated event-triggered alerts • Integrated JWT-based security across REST endpoints

• Developed performance-optimized modules in Apache Hive using Java and Golang • Designed and implemented cloud integration layers for major cloud platforms • Built caching mechanisms with advanced data structures, significantly reducing query latency • Created Kubernetes automation scripts for private cloud deployments • Collaborated with support teams and enabled 30% faster issue resolution across global projects

• Integrated Long Running Actions (LRA) distributed transactions with Red Hat enterprise systems • Implemented JWT authentication to secure internal APIs and transaction services • Created a JMH benchmarking module and improved throughput by 40% • Built automated testing frameworks and Jenkins CI/CD pipelines

• Developed scalable backend services in Java under Agile methodology • Re-architected REST APIs and introduced data sharding & indexing → improved query latency by over 100x • Built a heartbeat-based asynchronous messaging model to prevent RabbitMQ queue flooding • Resolved concurrency issues in multi-threaded systems and optimized database access