Billing & POS System
Peak-hour queues were driven by billing software that required mouse navigation for routine actions, and any internet interruption stopped sales entirely. Stock and sales data only reconciled at long intervals.
- Project type
- Point of sale
- Industry
- Retail & pharmacy
- Domain
- Business
- Delivery
- Core billing, then multi-outlet rollout
Technologies
- React
- FastAPI
- PostgreSQL
- Redis
- Linux
- Offline sync
- Offline capable
- Yes
- Entry mode
- Keyboard-first
- Stock sync
- Transactional
These describe scope and architecture. We do not publish performance figures we cannot substantiate.
Business problem
Peak-hour queues were driven by billing software that required mouse navigation for routine actions, and any internet interruption stopped sales entirely. Stock and sales data only reconciled at long intervals.
Our approach
The billing screen was rebuilt around keyboard shortcuts with a local-first data layer, so a sale completes against local storage and syncs when connectivity returns. Stock decrements share the same transaction as the invoice, making divergence structurally impossible.
Result
Counters keep operating through network outages, billing is faster per transaction, and stock, sales and tax records agree by construction rather than by periodic reconciliation.
Key features
The capabilities that mattered most to the outcome.
- Keyboard-first billing with barcode scanning
- Offline mode with automatic reconciliation on reconnect
- Configurable tax slabs and compliant invoice formats
- Batch and expiry tracking at the point of sale
- Shift-wise cash reconciliation and day-close reports
Technologies used
Chosen for the requirement rather than by habit — we explain the trade-offs before building.
Your project would not necessarily use the same stack. We choose per requirement, and we will explain the reasoning before anything is committed.
Need something like this?
Tell us how your situation compares. We will outline what would carry over, what would differ, and what it would take to deliver.
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Have a Project in Mind? Let’s Build It.
Tell us what your business needs. We scope the solution, recommend the right architecture and give you a clear plan — design, build, deploy, maintain and grow.