You will get a MultiStore POS system for your Retail and Wholesale Business
Project details
A point of sale, or point of purchase, is where you ring up customers. When customers check out online, walk up to your counter, or pick out an item from your stand or booth, they’re at the point of sale.
A POS system allows your business to accept payments from customers and keep track of sales. It sounds simple enough, but the setup can work in different ways, depending on whether you sell online, have a physical storefront, or both.
A point-of-sale system is used to refer to the cash register at a store. Today, modern POS systems are entirely digital, which means you can check out a customer wherever you are. All you need is a POS app and an internet-enabled device, like a tablet or phone.
A customer decides to buy your product or service.
If you have a physical store, they may ask a sales associate to ring them up. That associate could use a bar code scanner to look up the item’s price. Some POS systems, like Square Point of Sale, also allow you to visually scan items using the camera on your device. For online stores, this step happens when a customer finishes adding items to their cart and clicks the checkout button.
A POS system allows your business to accept payments from customers and keep track of sales. It sounds simple enough, but the setup can work in different ways, depending on whether you sell online, have a physical storefront, or both.
A point-of-sale system is used to refer to the cash register at a store. Today, modern POS systems are entirely digital, which means you can check out a customer wherever you are. All you need is a POS app and an internet-enabled device, like a tablet or phone.
A customer decides to buy your product or service.
If you have a physical store, they may ask a sales associate to ring them up. That associate could use a bar code scanner to look up the item’s price. Some POS systems, like Square Point of Sale, also allow you to visually scan items using the camera on your device. For online stores, this step happens when a customer finishes adding items to their cart and clicks the checkout button.
Programming Languages
ASP.NET, TypeScript, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$20
|
Standard
$50
|
Advanced
$60
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 10 days |
Number of Revisions | 3 | 3 | 3 |
Number of Pages | 5 | 10 | 15 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code | - | - | - |
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RE
Remy E.
Dec 13, 2025
React Native App Developer Needed for Exciting Project
Shabbir demonstrated excellent professionalism and technical expertise throughout the sprint work. The project was completed successfully, with clear communication and timely delivery. We are pleased with the outcome and would gladly engage Shabbir again for future work.
MB
Maryam B.
Dec 1, 2025
Experienced React Native Mobile App Developer Needed
Working with Shabbir was an excellent experience. He delivered high-quality work on time with great attention to detail. The code was clean, well-structured, and completely bug-free. Communication was smooth throughout the project, and he quickly understood the requirements and executed everything perfectly.
Shabbir handled every task professionally and even suggested improvements that added value to the app. I’m extremely satisfied with the results and will definitely hire him again for future projects.
Shabbir handled every task professionally and even suggested improvements that added value to the app. I’m extremely satisfied with the results and will definitely hire him again for future projects.
DS
David S.
Apr 26, 2023
Part-time developer for NextJS serverless app on Cloudflare Workers
Working with Shabbir has been fantastic, we hope to work with him again!
II
Ike I.
Apr 13, 2023
Back End Engineer
Freelancer is very good communicator, patient and hard working. I will recommend him highly.
OY
Olzhas Y.
Nov 6, 2022
You will get develop an android and ios app using flutter
It's a pleasure to work with such a professional. Job well done!
About Shabbir ul
Senior AI + Full Stack Developer | LangChain, n8n, RAG | .NET, React
100%
Job Success
Manchester, United Kingdom - 10:21 pm local time
🤖 What I build
• AI agents using LangChain, LangGraph, CrewAI, n8n
• Agentic RAG systems with Pinecone, Qdrant, ChromaDB
• MCP (Model Context Protocol) servers and tool-calling agents
• AI chatbots, voice agents, customer support automation
• AI features integrated into existing .NET, React, React Native apps
• Multi-tenant AI-native SaaS platforms
⚙️ Tech stack
• AI: LangChain, LangGraph, CrewAI, n8n, OpenAI API, Anthropic Claude, Gemini, RAG, Vector DBs (Pinecone, Qdrant, Milvus), Prompt Engineering, MCP
• Backend: .NET 8/9, ASP.NET Core, C#, Python, FastAPI, Node.js
• Frontend: React, React Native, Angular, Next.js, Tailwind, MudBlazor,Blazor
• Cloud/DevOps: Azure, AWS, Docker, GitHub Actions CI/CD
• Data: PostgreSQL, MSSQL, MongoDB
🚀 What sets me apart
• 100% Job Success Score verified delivery on every Upwork contract
• Production engineer, not a prototyper I ship code that survives compliance reviews and real load
• Full ownership: backend, frontend, DevOps, deployment under one roof
• 17 years across FinTech, HealthTech, Logistics, and government systems
📈 Recent client work
• Fleet Management System for government client .NET + React + Docker, full CI/CD on hardened VPS
• Civil aviation permit platform with self-hosted runners and compliance-grade secret management
• Audit Communication API .NET 8 with templated email workflows
• POS Platform spanning Web, Tablet, and Mobile ($11K Upwork project, 5-star)
📩 Send me your project details and I'll respond within 1 hour with a clear plan, timeline, and budget.
Steps for completing your project
After purchasing the project, send requirements so Shabbir ul can start the project.
Delivery time starts when Shabbir ul receives requirements from you.
Shabbir ul works on your project following the steps below.
Revisions may occur after the delivery date.
Analyzing the old store system which already exist.
Data Migration from old system to new system