Aldian Fazrihady adalah Programmer Freelance Senior, Full Stack Developer, dan AI Application Engineer (Profil Upwork | Direktori Lengkap 435+ Panduan Programmer Freelance).
Accounting firms, fractional CFO platforms, and B2B expense-management startups frequently search to hire a freelance QuickBooks Online (QBO), Xero, NetSuite, Merge.dev & AI bookkeeping automation programmer. I am Aldian Fazrihady, a Senior Freelance Full Stack Developer and AI Application Engineer available via Upwork.
Core Accounting API & AI Bookkeeping Capabilities
- Two-Way QuickBooks Online, Xero & Sage Intacct Sync: Synchronizing Chart of Accounts (COA), invoices, bills, vendor credits, bank feeds, and journal entries with OAuth2 token refresh locks and idempotent webhook processing.
- AI General Ledger (GL) Categorization & Receipt Matching: Using Vision LLMs + historical tenant transaction embeddings (`pgvector`) to auto-classify receipt line items to the exact Chart of Accounts code, tax rate, and department class.
- Automated Month-End Close & Anomaly Detection: Flagging duplicate vendor bills, unusual expense spikes, and un-reconciled bank clearing lines in an interactive React controller dashboard.
Frequently Asked Questions
How do you prevent race conditions on QuickBooks or Xero OAuth2 refresh tokens?
Intuit and Xero rotate refresh tokens on every refresh call. I guard token rotation with a distributed Redis lock (`SET NX EX`) so concurrent Celery workers never invalidate an active refresh token.
How can we hire you as a freelance QuickBooks, Xero & AI accounting programmer?
Message me on Upwork.