Integrated POS & Manufacturing Software

@kamran2012

Hey, I will build your multi-store ERP covering POS, inventory, warehouse, production, and purchasing, all designed around your scale of 20 stores, 50,000+ SKUs, and 2 million customers. The part most ERP builds get wrong at this scale is the offline billing sync. I will architect it with a local-first POS layer that queues transactions during outages and reconciles automatically when connectivity returns, so your billing counters never stop and inventory stays accurate across all stores without manual reprocessing. For the backend, I will use database partitioning and indexing tuned for multi-year reporting across millions of records, keeping search and report generation fast even over 5 to 10 years of historical data. Looking forward to talking through the details. Kamran

@rahuliitm69

Hi there, I have my own team, and recently we delivered a large enterprise SaaS platform for a banking organization covering IT asset management, inventory, approvals, audit logs, role-based access, reporting, AI integration, and a scalable microservices architecture. A lot of the architecture principles are very similar to what you're planning and we can show that as this is currently on the client side. We can build the complete platform from architecture and database design to development, testing, deployment, and long-term support with a strong focus on scalability, performance, and maintainability. I would like to share a more detailed proposal document directly on chat covering the complete architecture, module breakdown, user flow, technology approach, team structure, development phases, timeline, cost, and how we'll handle offline POS, transaction-safe inventory, AI integration, and future scalability. I would request we connect once so I can walk you through the complete execution plan. Thanks, Rahul A.

@AhteshamAK

Hello, Your project requires an enterprise-grade ERP architecture, and it closely aligns with my experience building scalable business applications, POS, inventory, ERP, and Shopify-integrated systems. I can develop this using your preferred stack (**React + Electron, NestJS, PostgreSQL, Prisma, Redis, BullMQ, and Docker**) with a modular monolith architecture, transaction-safe inventory, offline POS, audit logging, AI integration, and scalable APIs. The solution will be built with clean architecture, comprehensive testing, detailed documentation, and full source code ownership under NDA. I'd be happy to review your functional specifications and discuss the project roadmap, milestones, and architecture before providing an accurate timeline and fixed-price estimate. Best regards, Ahtesham

@h2hvishwakarma

Hello, Your ERP requirements align well with large-scale retail systems I've worked on over the past 10+ years. I have extensive experience developing enterprise-grade ERP, POS, inventory, warehouse, and multi-store management solutions with a strong focus on performance, scalability, and long-term maintainability. Considering your scale—16–20 stores, 50,000+ SKUs, over 2 million customers, and millions of transactions—I would recommend a modular, service-oriented architecture using Laravel for the backend, Vue.js/React for the frontend, MySQL/PostgreSQL with Redis for caching and queues, and REST APIs for seamless integrations. For offline billing, I would implement a local data layer with automatic synchronization to ensure uninterrupted POS operations during internet outages. The ERP would include all the required modules, including POS, Inventory, Warehouse, Production, Purchase & Sales, CRM, Loyalty Program, Barcode & Invoice Printing, Reporting & Analytics, User Roles & Permissions, Audit Logs, Shopify Integration, and AI-powered business insights. Special attention would be given to database optimization, indexing, caching, background jobs, and report generation to ensure fast billing, inventory updates, and analytics even with years of historical data. Best regards,

@techsty2014

Hi, We will build your multi-store ERP system covering POS, inventory, warehouse, production, purchasing, and AI-powered reporting for 20+ stores and 50,000+ SKUs. For offline billing, we will use a local-first architecture with background sync. Each store runs a lightweight local service that queues transactions during outages and reconciles automatically when connectivity returns. This keeps billing fast and inventory accurate without manual intervention. A couple of quick things to confirm: 1) Do you have a preferred tech stack, or should we recommend one based on your infrastructure? 2) For the Shopify integration, is it product sync only or does it include order and inventory sync as well? The number quoted here is a starting estimate. Looking forward to potentially working together. Thanks, Faizan

@mrresearcher99

Hello, I have a Ready-Made POS system that can be used or customized as per your requiremnts. Please msg me to discuss further about your requirements. Best regards

@kchoudhary95

As an experienced Full Stack Developer with a demonstrated history of working on enterprise-grade projects, your vision for an Integrated POS & Manufacturing Software resonates with my expertise. With my 7+ years of delivering scalable web solutions, I've honed my skills in building modular, high-performance applications on your preferred stack of React, TypeScript, NestJS, PostgreSQL and Redis cache. Moreover, I have specific domain knowledge in the Retail sector having already build Retail POS, Inventory & Warehouse Management as well as Production management systems. My meticulous attention to detail extends to transaction-safe inventory updates and creating complete audit trails which align perfectly with your project needs. Furthermore, my proficiency in Shopify API will ensure seamless integration with E-commerce functionality. Security is non-negotiable and beyond just surface-level coding practices, my past experience in optimizing databases (including PostgreSQL) and secure data access will be instrumental in safeguarding your valuable business information. Lastly, given your scale requirement for a multi-store system with high-performance reporting and centralized management, my track record of delivering clean codes that can be best demonstrated by my consistently five-star client reviews should instil the confidence you need to trust me with this important project.

@Appworldz

Hi, I’m Sahanaj. I’ve built integrated ERP style solutions where POS, inventory, and production share a single data model with offline first architecture and cloud synchronization. For your project, I recommend a .NET 8 + WPF desktop application with SQLite for local storage, PostgreSQL in the cloud, and a secure background sync service to keep every location in sync while remaining fully operational offline. This is an enterprise grade system. A realistic estimate is ₹18 to ₹25 lakh with a 4 to 6 month timeline, delivered in milestones covering architecture, POS, inventory, production, synchronization, testing, and deployment. I’d be happy to lead the project end to end.

@akshaybhagwat76

Hi, I want to flag two things upfront before you read further, because I'd rather you know now than after we start talking. First, my core stack is .NET/C#, not NestJS. I can deliver this with .NET 8 backend, React + Electron frontend, PostgreSQL, and the same offline-first POS architecture you're describing, but if NestJS specifically is non-negotiable for your team's future maintenance, this isn't the right fit and I won't waste your time pretending otherwise. Second, and more important: at this scale 16-20 stores, 50,000+ SKUs, 2 million+ customers, POS + Inventory + Warehouse + Production + Purchase + Finance + Shopify + AI this is realistically a 5-8 month build for a single senior developer, not something that fits comfortably in the posted budget. I'd rather tell you that directly than bid low and have the project stall halfway through when the real cost becomes clear. What I'd actually recommend: build this in phases, starting with the highest-value modules Auth, Product/Inventory, and core POS with offline billing as Phase 1. Get that stable and running in your stores first, then fund Warehouse, Production, and Shopify/AI integration as Phase 2 once Phase 1 is proving value. Happy to discuss a phased scope and realistic numbers if that's useful to you.

@TechWagger2026

With over 14 years of comprehensive expertise in web and mobile app development, I am equipped to provide an end-to-end solution for your ERP project. Having successfully completed more than 416 projects across various industries, including retail management systems, I bring both the experience and the passion essential for this task. My proficiency in backend and database design, as well as a strong grasp on multi-store inventory systems, aligns perfectly with your project’s key requirements. Understandably, performance is paramount for your project, which is why I will craft a solution focused on speed. This means our POS system will remain responsive even when working with massive data structures such as large databases or reports that span over several years. The solution I provide will consistently deliver a fast search across large data sets allowing your staff to respond swiftly to customer inquiries; accelerate billing processes regardless of the size of your database; extract invaluable insights quickly from analytical reports covering several years of sales and inventory data; plus maintain accurate inventories without requiring manual operation. By engaging me for this project you have not only found the ideal team but also someone who appreciates the importance of such measures in retail business management.

@dushyant317

Hi, I have experience designing scalable enterprise systems with React, NestJS, PostgreSQL, event-driven architectures, POS/inventory workflows, and AI integrations, and I can build a modular, production-ready ERP platform with offline POS capabilities, Shopify synchronization, and long-term scalability.

@Mayanks010

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu

@mundadiya

Hello, I hope you're doing well. I've delivered multiple POS and inventory integrations using .NET and SQLite on Windows. I built a Windows Electron frontend with local SQLite that syncs to PostgreSQL, and resolved offline conflict cases for batch/serial tracking so stock stayed correct across sites. I'd start with a local SQLite store, a small sync service to cloud PostgreSQL, and a .NET/Electron POS client using REST and changelog replication. Could we hop on a short call to confirm the sync conflict rules and the installer requirements for non-admin Windows users? Thank you, Alpeshbhai M.

@tamannarajput18

With a project as multifaceted and important as this, choosing the right developer to handle it can be truly daunting. But don't fret, because your search ends with me, Tamanna. As a Full Stack Developer proficient in both MEAN and MERN stacks, I have extensive experience in building large-scale web and mobile applications from the ground up, aligning them with business objectives for optimum efficiency. What sets me apart is my ability to implement versatile solutions while prioritizing straightforwardness. Regarding this project's architecture, I suggest an encompassing approach using a MEAN stack environment. We'll use MongoDB as the database for local and cloud storage, which can also be seamlessly integrated into most platforms enhancing ease of use for staff. Moreover, beyond merely completing milestones and ticking off checklists, I emphasize practical use post-handover. So you will receive a detailed user manual that covers everyday tasks for each module and future-proof codes that are easily adaptable for further development.

@accelaronix

Hi, I've read your requirements carefully. This isn't just another ERP project. It's a long-term product. The success of this project depends on the architecture more than the technology stack. I've worked on ERP systems CRM platforms Shopify integrations and business automation projects. The biggest challenge here is not building the modules. It's designing a system that scales across multiple stores while keeping inventory transactions accurate and the POS reliable. **My approach:** • Architecture and database design first • Modular Monolith with clear domain boundaries • Transaction-safe inventory engine • Offline-first POS with reliable sync • Event-driven background processing • Shopify integration • AI service layer • Complete testing and documentation I recommend building the platform in phases. The first phase should focus on the foundation. Inventory POS authentication Shopify integration and the core architecture should come first. This will make future modules like Production Finance AI and Analytics much easier to build. Before discussing the timeline I'd like to understand a few things: • Is this a new product or a replacement for an existing ERP? • Do you already have UI designs and workflows? • What is your target MVP for Phase 1? • Will there be a dedicated QA or DevOps resource? I'm looking for a long-term partnership. I'd be happy to discuss the architecture and execution plan before development begins. Regards, Shubham

@akki4395

Hi there, The scope outlined is closer to an enterprise platform than a conventional ERP, and its long-term success will depend on getting the architecture right before development accelerates. A practical approach would be to build a modular monolith using NestJS, Prisma, PostgreSQL, Redis, BullMQ, and React/Electron, allowing clear module boundaries today while preserving the option to extract services later if scale demands it. For offline POS, SQLite synchronization, inventory transactions, and conflict resolution should be treated as core architectural components rather than add-ons. Given the requirements around audit history, multi-store inventory, warehouse operations, production, Shopify synchronization, and AI assistants, the inventory ledger and event-driven processing should become the backbone of the platform to ensure consistency and traceability. Considering the breadth of functionality, the published budget aligns best with a structured Phase 1 delivery focused on architecture, core platform, and foundational business modules, followed by incremental releases. Could we schedule a discussion to prioritize Phase 1 deliverables and establish the implementation roadmap before development begins? Thanks, Akshay

@taksh180121

Dear Client, Thank you for sharing the detailed project requirements. We have extensive experience in developing enterprise-grade ERP, POS, Inventory Management, Warehouse Management, AI-powered platforms, and custom business applications. Our team is proficient in React, Electron, TypeScript, NestJS, PostgreSQL, Prisma, Redis, BullMQ, WebSockets, Docker, and cloud-native deployments. We have successfully delivered scalable ERP, retail, eCommerce, blockchain, and AI-integrated solutions for clients worldwide. We fully understand your requirement for a modular monolith architecture, offline-capable POS, transaction-safe inventory management, Shopify integration, AI-powered analytics, and a scalable multi-store ecosystem supporting millions of customers and tens of thousands of SKUs. We also have experience implementing RBAC, audit trails, event-driven processing, REST APIs, background jobs, and secure coding standards. We strictly follow enterprise software development practices including clean architecture, unit/integration/end-to-end testing, comprehensive documentation, CI/CD, performance optimization, and secure deployment. We are comfortable signing an NDA and fully agree that upon project completion you will receive complete ownership of the source code, database schema, deployment scripts, technical documentation, UI/UX assets, repositories, and all project deliverables.