At Appystack Pvt. Ltd., I developed an end-to-end HRMS with 8+ modules using Java 8, Spring Boot, PostgreSQL, and RESTful APIs. I connected attendance processing to payroll and enforced JWT and RBAC security across the APIs.
I also developed campus management workflows for student registration, fee tracking, scholarships, and refunds, along with a training module for content delivery, assessments, scheduling, and employee dashboards.
For the Tally ERP integration module, I connected Tally ERP 9, TallyPrime, and Tally Gold to a Java backend using XML-based APIs. I implemented data synchronization, bulk posting, reconciliation, and retry handling.

