Gopinath SivaKumaran

I am a software engineer with over 3 years of hands-on experience designing and delivering scalable CRM and SaaS applications using Node.js, Express.js, MongoDB, and Vue.js.

I build reliable backend services and RESTful APIs in microservices architectures, implementing secure JWT and OAuth 2.0 authentication, Redis caching, gRPC services, and Confluent Kafka pipelines to ensure low-latency, high-availability systems.

I improved query and reporting performance by 50–60% using MongoDB Atlas Search and aggregation pipelines, reduced authentication latency by 45% with a gRPC-based JWT service, and cut data loss by 95% through a real-time audit logging system built with MongoDB Change Streams and Kafka.

I collaborate in Agile/Scrum teams, lead migrations (Vue 2 → Vue 3, Node.js v14 → v21), and focus on performance optimization, secure API design, and delivering production-ready features that measurably reduce costs and improve system reliability.