// HOW I BUILD
A backend system for operational and financial management of poultry farms, covering production periods, daily activities, approvals, finance, monitoring, synchronization, reporting, and scoped access.
#01 / CASE FILE
A concise view of the problem, the working context, and the response behind this project.
Built the backend REST API for a poultry farm management application used to represent operational hierarchies, production periods, daily activity, finance, approvals, monitoring, investor visibility, reporting, and document workflows. The mobile frontend was handled by another developer.
Farm operations needed structured digital workflows across multiple organizational levels while supporting unreliable network conditions in the field. The backend also needed to protect lifecycle transitions, financial operations, approvals, and resource access from inconsistent or unauthorized updates.
Designed the backend around explicit operational hierarchy, production-period lifecycle, scoped authorization, offline synchronization, and transactional state changes. Treated synchronization and approval as first-class workflows rather than simple CRUD operations.
Built REST APIs using Laravel, PHP, MySQL, Laravel Sanctum, and Eloquent ORM. Designed offline-first synchronization using client UUID upserts, client/server timestamps, conflict detection, duplicate-date protection, soft-delete awareness, nested activity synchronization, and per-item sync status. Implemented production period states from draft to active to completed, including single-open-period rules and pre-close validation inside database transactions. Added device binding, role-based and resource-scoped authorization, row-level locking for approval workflows, income/expense synchronization, approval queues, salary XLSX import/export, server-side cash aggregation, operational and financial reports, KPI/deviation monitoring, and RHPP lifecycle functionality.
#03 / OUTCOME
BUSINESS / PRODUCT VIEW
Produced the backend foundation for a complex farm operations application spanning operational, financial, approval, synchronization, reporting, and investor-facing workflows. The project remained in development, with parts of the RHPP financial calculation still incomplete.
Open to full-time engineering opportunities and end-to-end software projects.