I'm a full-stack developer, and I've spent 4+ years building and maintaining ERP and accounting systems for the Philippine market. I work across the whole stack: Angular 19 on the front, and a C# Web API with Postgres/Supabase or SQL Server on the back. I write the money-path code myself. That means GL posting, AR/AP, inventory costing and BIR-compliant tax handling.
What I bring is the accounting side. I know double-entry bookkeeping and BIR rules well enough to design the data model and the reports, and not only the screens. So the books my software keeps are correct, they can be audited, and they hold up when someone inspects them.
Myvan Properties and Development Inc. · A Myvan Holdings Inc. company · Cebu / Mandaue City (remote)
I'm the sole/lead developer for the Myvan group's internal business systems. I do ERP and web work on two stacks, an older C# Web API + SQL Server platform and a newer Angular + Supabase one, and I also look after the group's marketing website.
Modern ERP: Angular 19 + Supabase (Postgres)
Built a multi-tenant accounting/ERP platform on Supabase (Postgres). Row-level security and custom JWT auth let users switch company and branch, while each tenant's data stays separate on shared infrastructure.
Wrote the money path (GL posting, AR/AP and tax logic) as Postgres RPCs, so every client that calls them gets the same, correct numbers.
Built the Angular 19 frontend with standalone components, signals and signal-based services on PrimeNG 19. It has dense dashboards and printable BIR and accounting reports.
Set up the BIR outputs (VAT, EWT, the OR vs SI distinction, books of accounts) so the records pass audit and inspection without rework.
Legacy ERP (Pilipinas Steel): C# Web API + SQL Server 2008
Maintained and extended a C# Web API (.NET) + SQL Server 2008 ERP covering Sales, Inventory, Procurement and Construction.
Wrote T-SQL stored procedures for GL posting, reconciliations and reporting. SQL 2008 has no OFFSET/FETCH, no STRING_SPLIT and no JSON, so I worked around all three.
Tuned slow queries and stored procedures on the tables behind the SO→DR→SI sales flow and inventory costing, which made reports and lookups faster.
Reconciled subsidiary ledgers to their control accounts so AR/AP and inventory balances are right at period close.
Other delivered work for the group
Designed and built a new modular ERP (C# Web API backend, Angular frontend) with Procurement, Inventory, Sales, Accounting and Treasury modules.
Added Bill of Materials (BOM) for construction project costing.
Maintained and improved the company's Enterprise Risk Management (ERM) system, and looked after internal databases for performance and security.
Built the Paylalo marketing website in WordPress. It's the group's public brand site.
June 2022 to Present
IT Help Desk Support
Taskseveryday · Cebu, Philippines
Fixed software, hardware and network problems for employees and agents.
Looked after the physical network equipment.
June 2019 to June 2022
IT Help Desk Support
Asian College of Technology · Cebu, Philippines
I did this while studying full time, as a working student.
Fixed hardware, software and network issues around campus.
Looked after the firewall and network equipment.
Ran basic troubleshooting seminars.
May 2017 to May 2019
Portfolio
Personal Projects 3
2026 to Present
Sole developer (design, build, deployment and operations)
listgoph.com is a live business directory and local-commerce platform for the Philippines. It has about 9,000 listings across 170…
Paylalo is a family of accounting and ERP apps I built for Philippine companies. They share one Supabase (Postgres) backend, one sign-in and one company list, and each business area gets its own focused app. This article is the map: what each app is for, how documents move between them, and where to find the full walkthrough of each one.
Paylalo Manufacturing (Make-to-Stock) runs at stocking.paylalo.com. It's the factory side of the Paylalo suite, for a company that builds finished goods to keep on the shelf rather than to fill one customer's order. Planners, production staff, the floor crew and accounting all work in it.
Kumpli ("Compliance Obligations Monitoring") is the app in the Paylalo suite that tracks a company's statutory obligations. Accounting and admin staff use it to list every BIR return, LGU permit, SEC filing and similar duty, name who's responsible, file proof when it's done, and let the app work out the next due date.
