kalanjiya vishnu j

I’m a Full-Stack Software Engineer with 3+ years building and scaling backend services and user-facing applications for multi-tenant retail CRM/customer-data SaaS. I specialize in Node.js/TypeScript and React, and I like using system design and test-driven development to ship robust, maintainable code.

At Casa Retail AI, I built a distributed multi-tenant onboarding platform with command-based orchestration that reduced onboarding effort by 90% through real-time, state-driven dashboards. I also engineered a multi-tenant loyalty & promotions engine (bill processing, points earn/redeem, cohorts, campaign execution) and delivered a high-throughput event-streaming pipeline ingesting from files, Kafka topics, and databases—processing millions of events at sub-second latency.

I’ve worked across integrations and automation too: I architected serverless microservices for automated AR template generation and deployment with 95% CI/CD test coverage, and I built a React drag-and-drop invoice/e-bill builder that reduced configuration effort by 70% while improving frontend velocity and reuse. From webhook-driven lead ingestion (Meta/Google Ads metrics) to microservices on AWS/Azure with Docker and Kubernetes-based CI/CD, I focus on reliability, scalability, and clean engineering practices.