Prajak Sen

Designed and implemented scalable, fault-tolerant microservices architecture for BillTrack using Node.js, Express.js, and Python. Followed REST and GraphQL standards for secure and efficient API design in distributed systems. Engineered robust backend components with a focus on system integration across PostgreSQL, MongoDB, and Redis, improving data handling performance via asynchronous programming and query tuning. Deployed applications on AWS EC2, automated infrastructure provisioning with Docker, and managed S3 and SQS operations. Built CI/CD pipelines with GitHub Actions and collaborated with AI/ML teams on data-driven automation pipelines. Monitored systems with Prometheus and performed fault resolution. Contributed to system-level architectural design enhancing scalability, maintainability, and security, and participated in documentation and cross-functional design reviews.

Developed and maintained the backend of BillTrack using Java, Spring Boot, and Maven. Deployed microservices over Apache Tomcat, configured Jenkins-based CI/CD pipelines, and containerized services with Docker to improve deployment automation and system scalability. Automated log parsing and system diagnostics using Python and Bash; built custom tools for analyzing Apache/Nginx configs. Supported DevOps operations and led RPA initiatives for auto-billing and invoice tracking across hybrid environments.

Developed and maintained the backend of BillTrack using Java, Spring Boot, and Maven. Deployed microservices over Apache Tomcat, configured Jenkins-based CI/CD pipelines, and containerized services with Docker to improve deployment automation and system scalability. Automated log parsing and system diagnostics using Python and Bash; built custom tools for analyzing Apache/Nginx configs. Supported DevOps operations and led RPA initiatives for auto-billing and invoice tracking across hybrid environments.