Norman Lim
.NET developer who builds the systems that run the back office: accounting, payroll, HR, timekeeping and inventory for Philippine businesses. Building software since 2016, based in Malabon, Metro Manila.
Business systems
Full web applications for accounting, HR, payroll and inventory, from database design to deployment, built in C# and ASP.NET MVC.
Databases
MySQL, SQL Server and Oracle schemas, reports, backups and migrations, including moving Windows systems to the web.
PH compliance
BIR forms (2307, 2550Q, SLSP, QAP) and SSS, PhilHealth and Pag-IBIG remittances generated straight from the books.
Selected Projects
Screens from systems I built. Click any screenshot to see it larger. All data shown is sample data.
Featured project · Sole developer
ASA Accounting System
A full accounting system for Philippine businesses. Sales, purchases, treasury, inventory and payroll all post double-entry journal entries to one ledger. Every document goes through an approval chain before posting, and BIR forms come from the same posted data.
Modules
- Sales & receivables: VAT invoices, receipts, credit and debit memos, AR aging
- Purchases & payables: bills with EWT by ATC, recurring bills, a bills-due calendar
- Treasury: check disbursement, deposits, fund transfers, bank reconciliation
- Inventory: FIFO costing, stock cards, physical counts with variance posting
- Payroll: payroll file import and SSS, PhilHealth and Pag-IBIG remittances
- Reports: TB, GL, income statement, balance sheet, cash flow, cost centers
- Controls: role-based approval limits and a full audit trail
Approval flow: vendor bill to released check
- DraftAP Staff enters the bill, VAT and withholding
- For ApprovalSubmitted and locked
- PostedAP Head approves. Dr Expense, Input VAT / Cr AP, EWT
- Check signedTreasury prepares it, the Treasurer signs
- Released & clearedDr AP / Cr Cash in Bank, matched in bank recon
BIR forms
Built with
HR & payroll suite
HRMS: Human Resource Management System
Recruitment, the employee 201 file, timekeeping, leave, loans and payroll in one system. It also produces SSS, PhilHealth, Pag-IBIG, BIR 1601-C, 2316 and DOLE reports, plus a self-service portal for employees.
Rurex Fabrication · 2021–2025
General System ERP
HR, barcode timekeeping, cost control, inventory and logistics, sales and payables in one web system that replaced spreadsheets.
Multi-company · Background jobs
Payroll Service & Timelog Sync
Pulls timekeeping device logs into HR and runs payroll per company and branch. Safe to re-run without duplicating logs.
YGC · Goldnines · 2016–2021
Earlier systems
Windows-to-web migration on Oracle Express, plus VB.NET desktop apps and C# MVC web apps with user access control.
Experience
Ten years of building and supporting software in-house, from IT staff to supervisor.
IT Specialist Current
Writes technical specifications, designs and architecture for new in-house software.
.NET Developer
Wrote and maintained C# and VB.NET code and designed test protocols to catch bugs before release.
IT Supervisor & Developer
Led the in-house ERP and ran MySQL databases and backups, CCTV and webmail administration.
IT Developer
Built Oracle Express applications and moved Windows systems to the web.
IT Staff & Developer
Built VB.NET and C# MVC applications and managed databases, user accounts and support.
Languages & frameworks
Databases
Reporting & delivery
BS Information Technology · City of Malabon University, 2016
Let's build your next system.
Open to .NET development roles and project work. Call, text or email me and I'll get back to you.