Legacy Code Standardization
Refactored inconsistent legacy modules into a cleaner, standardized backend structure so new features can be implemented faster and with lower regression risk.
Backend API Modernization
HR Management App Revamp for Better Scale and Maintenance
This project modernized a legacy HR system used for employee attendance and daily task operations at crocodic.com. The old version was difficult to maintain due to hardcoded logic and non-relational data design, so the system was rebuilt with standardized code and normalized database architecture.
Initial Challenges
- Legacy codebase had inconsistent patterns and tightly coupled modules.
- Business data was hardcoded and difficult to evolve safely.
- Database structure was not properly relational and became hard to scale.
- Feature delivery slowed down because each change required broad manual checks.
McGragor Walk
What I Improved
Database Normalization
Redesigned non-relational and hardcoded data structures into normalized relational tables with clear constraints, reducing duplication and improving data integrity.
Scalable Migration
Delivered a successful migration from the old architecture to a new production-ready version with better maintainability and clearer domain boundaries.
Functional Scope
- Employee attendance tracking
- Daily task entry and monitoring
- Task status flow (pending, in progress, completed)
- Role-based API behavior for operational teams
Outcome
The migration was completed successfully and the new version is easier to maintain, easier to extend, and more reliable for daily HR operations. With standardized code and normalized relational models, the backend is now in a much better position for future scaling and feature growth.