Employee Management System
Production-grade backend with FastAPI REST API, PostgreSQL persistence, deterministic payroll logic, and Docker deployment.
Completed
March 2026
Duration
3 months
Role
Backend Engineer
Team
Solo project
Problem
Manual payroll and leave management is error-prone, lacks audit trails, and doesn't integrate with other enterprise systems.
Solution
Built a FastAPI backend with deterministic Decimal arithmetic for payroll, PostgreSQL with full audit trails, and both CLI and REST API interfaces.
Impact
Automated payroll with type-specific rules, full audit trails, CI/CD pipeline with GitHub Actions, and Docker deployment.
About This Project
A production-grade Employee Management System built with Python and FastAPI that automates payroll calculations, leave management, and employee record keeping.
The system enforces strict input validation, applies deterministic payroll rules using Python Decimal arithmetic, and persists all operations in PostgreSQL with full audit trails.
Features both a CLI interface for automation and a REST API for integration with other enterprise systems.
Key Features
Technical capabilities and highlights
Automated payroll calculation with leave deductions
Type-specific employee rules (Senior/Junior/Temporary)
PostgreSQL database with audit trails
REST API for system integration
CLI interface for batch operations
Comprehensive input validation
CI/CD pipeline with GitHub Actions
Docker containerization
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