You will get a Full-Stack POS System built with .NET 9 and React TypeScript
Top Rated
Project details
You will get a complete, production-ready Point of Sale (POS) system built with .NET 9 and React + TypeScript. This is a professionally architected full-stack application following Clean Architecture and SOLID principles — not a template or boilerplate.
The system includes multi-store management (3 stores pre-configured), a fast POS terminal with cash/card/split payments and GST calculation, 200+ products with real-time inventory tracking, a customer loyalty program with 100+ seeded customers, and role-based access for Admin, Manager, and Cashier roles.
Additional features include sales reports with interactive Recharts visualizations, customizable receipt templates, 40+ theme variables with 4 preset themes, and WhatsApp Business API integration for customer ordering.
You receive the complete source code, a database migrator that auto-seeds 3,000+ orders and comprehensive test data, full documentation, and one-click build/run scripts. Perfect for retail businesses, bakeries, multi-location operations, or as a foundation for a SaaS POS platform.
The system includes multi-store management (3 stores pre-configured), a fast POS terminal with cash/card/split payments and GST calculation, 200+ products with real-time inventory tracking, a customer loyalty program with 100+ seeded customers, and role-based access for Admin, Manager, and Cashier roles.
Additional features include sales reports with interactive Recharts visualizations, customizable receipt templates, 40+ theme variables with 4 preset themes, and WhatsApp Business API integration for customer ordering.
You receive the complete source code, a database migrator that auto-seeds 3,000+ orders and comprehensive test data, full documentation, and one-click build/run scripts. Perfect for retail businesses, bakeries, multi-location operations, or as a foundation for a SaaS POS platform.
Programming Languages
JavaScript, ASP.NET, TypeScriptCoding Expertise
SecurityWhat's included
| Service Tiers |
Starter
$500
|
Standard
$1,000
|
Advanced
$2,500
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 7 days |
Number of Revisions | 1 | 3 | 5 |
Number of Pages | 13 | 13 | 15 |
Design Customization | - | - | |
Content Upload | - | - | - |
Responsive Design | |||
Source Code |
15 reviews
(14)
(1)
(0)
(0)
(0)
This project doesn't have any reviews.
FP
Frank P.
Jun 19, 2026
Recover Source Code for Azure .Net App
Nasir helped me out of tight spot to recover our source code and critical enhancements. He went above and beyond to suggest things that would be helpful for our app. He is a great forward thinker and collaborator. He also produced some detailed docs for our app and helped with our Git branch setup and containerization setup on Docker. Came up to speed quickly on our Azure environment and MySQL database. Very please with his work and plan to work with him again.
DS
Don S.
Mar 10, 2026
Full Stack .Net 6 and Angular developer with database Experience to create website from scratch
Nasir was very professional and easy to work with. He consistently met our project requirements and delivered quality work on time. Communication was smooth throughout the process, and he was responsive whenever we needed adjustments. We would definitely work with him again and highly recommend him to others.
AC
Anne C.
Aug 12, 2025
.NET Core Web API Expert
Nasir is one of the best contractors I have hired on Upwork. Very knowledgeable across stack in React, .NET Core, SQL Server, Docker, AWS. He is the technical lead for implementation of the new version of a large web application. Easy to work with, dependable, and fast. I highly recommend Nasir.
AC
Anne C.
Nov 21, 2024
EF Core EF Power Tools EntityType.t4 mapping enums
Nasir did a great job quickly fixing my issue.
ST
Spencer T.
Sep 23, 2024
C# fullstack developer - fulltime, longterm opportunity
Nasir is a fantastic .NET and Angular Fullstack Software Engineer. He has done excellent work for us for over 2 years and has been very reliable. The project has run to completion, but if we have need in the future we would definitely hire again. He did excellent work, especially on the front end.
About Nasir
Full Stack .NET Engineer | AI Integration | Legacy Modernization | LLM
100%
Job Success
Lahore, Pakistan - 2:57 pm local time
Right now, I'm the Technical Lead on a US government project for the 𝗢𝗳𝗳𝗶𝗰𝗲 𝗼𝗳 𝗦𝘂𝗽𝗲𝗿𝗶𝗻𝘁𝗲𝗻𝗱𝗲𝗻𝘁 𝗼𝗳 𝗣𝘂𝗯𝗹𝗶𝗰 𝗜𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻 (𝗢𝗦𝗣𝗜) in Washington State. I'm rebuilding their statewide 𝗧𝗲𝗮𝗰𝗵𝗲𝗿 𝗮𝗻𝗱 𝗣𝗿𝗶𝗻𝗰𝗶𝗽𝗮𝗹 𝗘𝘃𝗮𝗹𝘂𝗮𝘁𝗶𝗼𝗻 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 (𝗧𝗣𝗘𝗣) — a system that serves 295 school districts and over one million students. I 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 .𝗡𝗘𝗧 𝗖𝗼𝗿𝗲 𝗪𝗲𝗯 𝗔𝗣𝗜𝘀, build React-based front-end modules for educator dashboards, optimize SQL Server queries for district-level reporting, and manage Docker + AWS deployments with full CI/CD pipelines.
Before OSPI, I spent a year building 𝗛𝗜𝗣𝗔𝗔-𝗰𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝘁 𝗵𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 at Providertech — real-time two-way patient messaging, multi-tenant appointment management, survey systems, and test result dissemination. I built a modular UI Components Library with WAI-ARIA accessibility standards, worked with Azure for secure data storage and CDN integration, and implemented FHIR and HL7 healthcare interoperability standards using SignalR for real-time communication.
I also worked as a Software Engineering Consultant at Vinson & Elkins LLP — one of the largest and most 𝗽𝗿𝗲𝘀𝘁𝗶𝗴𝗶𝗼𝘂𝘀 𝗹𝗮𝘄 𝗳𝗶𝗿𝗺𝘀 in the world. I built and modernized multiple applications across their tech stack, working with Angular, Vue.js, ASP.NET Core, Classic VB, and SQL Server. I enhanced legacy systems, built new project modules with Angular Graph for data visualization, and delivered across both modern and legacy codebases.
At Namfus in Berlin, Germany, I served as Team Lead — managing a team of 3 developers building 𝗮𝗻 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗲𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 for the German school system. I designed the architecture using CQRS and Mediatr patterns, integrated the ChatGPT API to enable AI-driven Socratic learning interactions, and delivered the entire Namfus Education System on time while working remotely with the German client.
As Project Lead at Excellence Delivered, I managed a team of 6 developers building Zorbis — a 𝗰𝗼𝗺𝗽𝗿𝗲𝗵𝗲𝗻𝘀𝗶𝘃𝗲 𝘀𝗼𝗹𝗮𝗿 𝗲𝗻𝗲𝗿𝗴𝘆 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 automating residential solar panel installation across the US, from lead generation to financing. I integrated Facebook API for lead sourcing, Salesforce for CRM, and built the full stack with Angular 8, ASP.NET Core 3.1, Dapper, and SQL Server.
On Upwork alone, I've logged 8,300+ hours across 16 completed jobs — every single one rated 5.0 stars. My longest engagement was 3+ years full-time (2,165 hours) with one client. I don't do quick gigs and vanish. I embed into your team, learn your business, and stay as long as you need me.
Here's what I work with daily:
→ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: C# · ASP.NET Core Web API · ASP.NET MVC · Entity Framework Core · Dapper · ADO.NET · REST APIs · Microservices · Identity Server · SignalR · FHIR · HL7
→ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: Angular 17+ · React · TypeScript · JavaScript · Vue.js · Tailwind CSS · Bootstrap · HTML5 · CSS3 · Angular Material · DevExtreme · Responsive Web Design
→ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲: SQL Server · PostgreSQL · Database Design · Query Performance Tuning · Stored Procedures · Database Optimization
→ 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: Docker · Docker Compose · AWS (EC2, S3, RDS, Lambda, CloudFront) · Azure (App Service, Blob Storage, Azure SQL, CDN) · CI/CD Pipelines · GitHub Actions · Azure DevOps
→ 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲: Clean Architecture · CQRS · Mediator Pattern · Repository Pattern · SOLID Principles · Domain-Driven Design · Dependency Injection · Onion Architecture
→ 𝗔𝗜 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: ChatGPT API · OpenAI · Salesforce Integration · Facebook API · Third-Party API Integration
→ 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: xUnit · NUnit · Jest · Unit Testing · Integration Testing · Code Reviews · SonarQube
𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 𝗜'𝘃𝗲 𝘀𝗵𝗶𝗽𝗽𝗲𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗰𝗼𝗱𝗲 𝗶𝗻: US Government, Healthcare (HIPAA/FHIR/HL7), Legal (Am Law 100), EdTech & E-Learning, Finance & Leasing, Solar Energy & CleanTech, and Enterprise SaaS.
I've led teams of up to 15 developers as Project Lead — handling architecture decisions, sprint planning, code reviews, mentoring, and direct client communication. Whether you need a hands-on senior full stack developer, a technical lead to own your product, or someone to modernize a legacy system — I've done all three, multiple times.
100% Job Success Score · Top Rated Plus · $100K+ Earned · 8,300+ Hours · All 5.0 Stars
I respond within hours, write clean and maintainable code, and communicate clearly without you having to chase me. Available 30+ hrs/week. Open to contract-to-hire. Flexible with US and European time zones.
Steps for completing your project
After purchasing the project, send requirements so Nasir can start the project.
Delivery time starts when Nasir receives requirements from you.
Nasir works on your project following the steps below.
Revisions may occur after the delivery date.
Source Code Delivery and Setup Assistance
I will deliver the full source code repository, walk you through the setup process, configure the database, and ensure the application runs on your environment. For Standard and Advanced tiers, I also provide deployment support and ongoing bug fixes.