Hemant Singh Parmar
Full Stack developer building scalable apps
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Geofence based Attendance & HRMS
– Developed and containerized a geofence-based HRMS using Docker, deploying it to AWS EC2 with a focus on high
availability for 150+ daily active logistics personnel.
– Designed a location-validation algorithm utilizing real-time GPS coordinates and Haversine formula to enforce check-in
boundaries, effectively eliminating proxy attendance logs.
– Automated complex data-processing pipelines using Node-cron, generating and delivering asynchronous performance reports
via AWS SES, which reduced HR administrative overhead by 15 hours weekly.
– Built a robust RESTful API with centralized error-handling and middleware-based validation, ensuring 100% data integrity
across cross-site attendance logs.
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