CallMyDoctor
Backend Engineer
Leading backend development for a Healthcare Business Operations Platform with focus on scalable architecture, deployment automation, and production monitoring using Node.js, Docker, and modern observability tools.
- →Architected and developed the core backend architecture for a Healthcare Business Operations Platform using Node.js, Express, MongoDB, ensuring high performance, reliability, and clean modular design.
- →Solely responsible for end-to-end deployment and production monitoring of applications on Linux (Ubuntu) servers, ensuring stable uptime and streamlined release cycles.
- →Containerized and deployed applications using Docker and configured environment isolation for production; improved deployment speed and reduced configuration issues.
- →Implemented server monitoring and observability by integrating Grafana, Prometheus, and Node Exporter, enabling real-time tracking of CPU, RAM, Disk, and Network metrics across several VPS servers, significantly improving incident response time.
- →Designed and implemented a device-fingerprinting algorithm using IP analysis, User-Agent parsing, Geolocation APIs, and TTL-based checks to identify suspicious user activity, track visits even after logout, and strengthen session integrity.



