Oct 2025 — Present
Parañaque, Metro Manila
Junior Software Developer · Macky Champ Software Ventures, Inc.
- Engineered a demand-forecasting engine implementing 5 statistical models — Croston, SBA, and TSB for intermittent/lumpy demand plus Holt-Winters and ARIMA for continuous series — with automatic model selection and confidence intervals, achieving ~5% MAPE on backtested historical sales and surfacing rollups by SKU, brand, or company total.
- Integrated inventory with the ERP's finance module across 2 end-to-end cycles: order-to-cash (sales orders → accounts receivable → collections) and procure-to-pay (purchase orders → accounts payable → payments).
- Built 4 core inventory modules (inbound, outbound, issuance, adjustments) for an enterprise ERP in C#/ASP.NET MVC and integrated them with the company's WMS.
- Developed a budget planning and consolidation module that rolls department-level budgets into a company-wide view, with reusable budget references.
- Authored Oracle PL/SQL procedures and packages for Save/Edit operations, implementing transaction-level validation to ensure robust data integrity.
- Produced technical documentation for developers and user manuals for end users, ensuring clarity across complex system processes.
