React JS Developer (Banking OR Fintech Domain ONLY) (Kolkata)

React JS Developer Domain - Banking/FinTech Remote position - India Exp: 4-6 Years Must Haves: - React JS advanced (hooks, context, Redux/Zustand, lazy loading, code splitting) - JavaScript ES6+, TypeScript, HTML5, CSS3 - REST API integration Axios, Fetch, WebSockets - Jest and React Testing Library - Docker image builds and container management (production, not just theory) - CI/CD must have configured pipelines (Jenkins, GitHub Actions, or GitLab CI) - Nginx or Apache basic config and reverse proxy - Cloud AWS, Azure, or GCP (basic to intermediate) - SQL MS SQL Server, Oracle, or PostgreSQL - Banking / FinTech / digital payments background mandatory - Greenfield project experience - High-availability, regulated workplace experience Preferred: - Java Spring Boot read and debug level - Microservices and BFF pattern awareness - IBM MQ or similar messaging systems - Micro Frontend architecture (module federation / single-spa) - Kubernetes or Docker Compose - NoSQL Redis or MongoDB - core banking integration .