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SaaS · Platform6 weeks

MRT POS

A fully featured POS system covering invoicing, inventory management, expense tracking, and live analytics — designed to replace spreadsheets and legacy tools for growing businesses.

Timeline
6 weeks
Platforms
Web app
Role
Full-stack engineering
Category
SaaS · Platform
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The Problem

The client was running a growing retail operation on spreadsheets, disconnected invoicing tools, and manual expense logs — a setup that worked at ten transactions a day but broke down at a hundred.

They needed a unified system that could handle invoicing, inventory, expenses, and profit analytics in one place, without the cost or complexity of enterprise POS software.

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The Solution

We built a web-based POS platform from scratch — real-time inventory tracking, invoice generation, expense logging, and a live analytics dashboard showing profit margins, top-selling products, and monthly summaries.

The system was designed for non-technical staff: minimal UI, fast workflows, and no training required beyond a 30-minute walkthrough.

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Execution

Data model and core flows were locked in week one. By week three, invoicing and inventory were in staging with real data. The analytics layer was the final sprint — pulling from live transactions to power the dashboard.

We deployed to production and ran a two-day parallel test alongside the client's existing tools before full cutover.

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Results

1 system

Replaced 4 disconnected tools

Real-time

Live profit and inventory data

Day-one

Fully operational from first login

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Tech Stack

Frontend
ReactTypeScriptTailwind CSS
Backend
NestJSNode.jsREST API
Data
PostgreSQL
Infra
DockerCI/CDVPS

Ready to build?

Your product could be live in 4 weeks.

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