NetworkDays
How RevOpsDev engineered and operates a production HubSpot app for business-day workflow logic.
The same stack listed on the RevOpsDev about page is not theoretical. It runs a shipped product.
NetworkDays is how you calculate business days in HubSpot: a HubSpot workflow app, built by Sharoze Iftikhar over roughly three months of active, disciplined engineering. It skips weekends and public holidays across more than 145 country calendars.
Free
$0
- Calculate Business Days workflow action
- Country public holiday calendars
Pro
$25/mo
- Add or subtract business days
- Check whether a date is a business day
- Find the next or previous business day
- Company holidays
Premium
$50/mo
- Everything in Pro
- HubSpot CRM card
- Velocity Reports for deal and ticket KPIs
- Native reportable properties written back to HubSpot
Built to survive real operations
552 automated tests.
The latest release is covered by 552 automated tests across the product.
Independent audit passes.
Two AI model families cross-checked each other's security and billing audits, catching a bug that would have quietly downgraded every subscriber to free about a month after signup.
Rollback before deploy.
Every production deployment is gated on a database snapshot and a git rollback tag first, with no exceptions.
End-to-end billing verification.
Checkout and webhooks were verified before production activation, not after.
Application
- Python and FastAPI backend
- SQLite in WAL mode
- HubSpot OAuth
- HubSpot UI Extensions
Observability
- Error tracking
- Scheduler heartbeats
- Uptime monitoring
- Metrics dashboard with alerting
RevOps architecture backed by product engineering
NetworkDays applies HubSpot architecture, custom workflow actions, OAuth, UI Extensions, billing, deployment controls, and operational monitoring in one production system. It is direct evidence that RevOpsDev can design the system and carry it through implementation, release, and ongoing operation.