Safety & correctness
- QuickBooks tokens encrypted at rest (AES-256-GCM) and auto-refreshed.
- HMAC-verified, de-duplicated webhooks.
- Role-based access, full audit logging, and encrypted backups with integrity checks.
Featured Project
UPSCash
Cash-reconciliation automation for a US department-store chain — matches each store's end-of-day register cash against QuickBooks and flags the discrepancies that matter. Built in about two weeks.
Released Portfolio Build NestJS · React · SQLite
Project Snapshot
Status Released
Project Type Portfolio Build
Core Stack 7 technologies
Access Private build
Overview
The owner needed the cash left in each store's register at end of day reconciled against QuickBooks. UPSCash lets staff submit the day's cash, connects to QuickBooks Online over Intuit OAuth, pulls the journal entries, and reconciles per store against configurable thresholds (minor $100 / major $500), emailing the owner on major discrepancies. The same check runs on weekly manager deposits.
Because it touches money and a third-party financial account, the care went into the boring-but-important parts.
Key Features
Tech Stack
- NestJS
- React
- SQLite
- TypeORM
- QuickBooks (Intuit OAuth)
- Resend
- Docker
Results
Before
After
Impact
~2 weeks
DRCODE AI Interview
A real-time AI interview platform with a live DSA coding round. I built the code-execution layer (Judge0) and the Monaco code editor.
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