aumahinay.dev

Ambrosio “Butch” U. Mahinay, MPA

Public finance professional who builds software for local government. My tools make treasury work faster, more accurate, and easier to audit.

Cover of 360° Accountability: Public Fiscal Administration in Philippine Local Treasuries
15+years in public finance
7Google Professional Certificates
60Coursera courses completed
10ALTOS principles of 360° accountability

Projects

For Philippine local treasuries

ALTOS Automated Local Treasury Operations System

Much of the daily work in a Philippine local treasury is still done by hand, from receipts and cash books to monthly reports, so reporting is slow and errors are hard to catch. ALTOS is my answer to that gap. It automates the full cycle of public money: official receipts, remittances and deposits, checks and cash advances, the monthly reports of accountable officers, and collection targets and results. One database serves both a desktop application and a web application across the office network.

PythonSQLiteDesktop appWeb appHMAC-SHA256 audit logAES-256 backupsNIST CSF
ALTOS CollectReady

Collections subsystem

A subsystem of ALTOS for collections and their reports: official receipts, collectors and their OR series, remittances and deposits, the daily RCD, and the monthly RAAF and CRAAF.

Collect + Report
ALTOS DisburseReady

Disbursements subsystem

A subsystem of ALTOS for disbursements and their reports: vouchers, checks, cash advances and their liquidation, the check register and disbursement reports.

Disburse + Report

Latest certificates

Professional Certificate

Google IT Support

Completed Oct 22, 2026 · 5 courses · Coursera
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  • Technical Support Fundamentals
  • The Bits and Bytes of Computer Networking
  • Operating Systems and You: Becoming a Power User
  • System Administration and IT Infrastructure Services
  • IT Security: Defense against the digital dark arts
Professional Certificate

Google Data Analytics

Completed Jun 28, 2026 · 9 courses · Coursera
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  • Foundations: Data, Data, Everywhere
  • Ask Questions to Make Data-Driven Decisions
  • Prepare Data for Exploration
  • Process Data from Dirty to Clean
  • Analyze Data to Answer Questions
  • Share Data Through the Art of Visualization
  • Introduction to Data Analysis Using Python
  • Google Data Analytics Capstone: Complete a Case Study
  • Accelerate Your Job Search with AI
Professional Certificate

Google AI

Completed Feb 22, 2026 · 7 courses · Coursera
Show courses
  • AI Fundamentals
  • AI for Brainstorming and Planning
  • AI for Research and Insights
  • AI for Writing and Communicating
  • AI for Content Creation
  • AI for Data Analysis
  • AI for App Building