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# Senior POS Developer / Architect Needed – Custom Retail POS Platform I am looking for an experienced **POS software developer or development team** to build a custom retail Point-of-Sale system from the ground up. The initial system will be used in my own retail stores, but the long-term goal is to develop this into a **commercial POS platform that can eventually be offered to other businesses**. ### General Requirements The system should include: * Modern, fast retail POS interface * Product and inventory management * Barcode scanning * Employee accounts and permissions * Cash register management * Sales, returns, refunds and discounts * Customer management * Receipt printing * Reporting and analytics * Multi-store support * Cloud-based administration * Reliable synchronization between locations/registers * Integration with POS hardware such as barcode scanners, receipt printers, cash drawers and payment terminals ### Payment Processing A major part of the project will be **integrated credit/debit card processing**. I want the POS to communicate directly with a compatible payment terminal so the cashier can initiate a transaction from the POS and the customer can tap/insert/swipe their card on the terminal. The payment architecture should be flexible enough to potentially support **multiple payment processors in the future**. Long term, I am interested in developing a business model where the platform could potentially generate revenue through: * POS subscriptions * Hardware * Payment processing * Additional software/services Experience with payment processors such as **Square, Stripe, Adyen, Fiserv, Worldpay, Global Payments, Clover**, or similar platforms is highly desirable. ### Long-Term Architecture The system should be designed with future growth in mind, including: * Multiple businesses/merchants * Multiple locations * Multiple registers * Cloud administration * Multi-tenant architecture * Payment integrations * Merchant onboarding * Third-party integrations * Scalable infrastructure ### Development Approach I would like to begin with a **paid discovery/architecture phase**. I will provide an existing POS system as a **functional reference** so the developer can understand the type of workflow and functionality I am looking for. The first phase should determine: * System architecture * Technology stack * Database structure * Payment architecture * Hardware integration * Development roadmap * Estimated cost and timeline After the architecture phase, I would like to move into full development with the right developer/team. ### Who I Am Looking For I am specifically looking for someone with **real-world POS development experience**, not just general web development. Ideal experience includes: * Retail POS * Inventory systems * Payment processing * Payment terminals * POS hardware * Multi-location systems * Cloud/SaaS platforms * APIs * Multi-tenant applications * Security and payment compliance Please provide examples of **POS systems you have personally built or worked on**, including any payment terminal integrations. I am looking for a **long-term development partner**, not just someone to complete a quick project.
Project ID: 40677807
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186 freelancers are bidding on average $14 USD/hour for this job

Hello, I understand you are seeking a seasoned POS developer/architect to create a custom retail Point-of-Sale system that can evolve into a commercial POS platform. My expertise lies in crafting robust POS solutions tailored to specific business needs. Based on your requirements, I envision developing a modern retail POS interface with seamless integration of product/inventory management, employee accounts, and multi-store support. Leveraging my experience with payment processors like Square and Stripe, I will ensure a smooth payment processing experience for your customers. For the long-term architecture, I plan to design a scalable system supporting multiple businesses/merchants, cloud administration, and third-party integrations. My approach involves starting with a paid discovery phase to outline the system architecture, technology stack, and development roadmap before proceeding to full development. With a track record in retail POS, payment processing, and multi-location systems, I am well-equipped to be your long-term development partner. I invite you to explore my portfolio to see my past POS system projects. Let's discuss further in chat to delve into the specifics of your project and how I can bring your vision to life. Sincerely, Rajesh
$11 USD in 40 days
9.7
9.7

Hi, Your requirement caught my attention because this is more than a standard POS app — the key challenge is building a reliable retail system that works with scanners, receipt printers, cash drawers and integrated payment terminals, while keeping the architecture ready for a future multi-tenant SaaS platform. We can help with the architecture/discovery first and then take it through MVP development and scaling. We’ve worked on inventory, payment, marketplace and SaaS applications, so I’m comfortable with the core workflows involved. A couple of quick questions: • Which country will the first stores operate in? • Do you already have a payment terminal/processor in mind? • Is offline POS operation required when the internet is unavailable? If you share the existing POS you’re using as a reference, I can review the workflow and suggest the right architecture, MVP scope and roadmap. Happy to discuss. Best, SNR
$12 USD in 40 days
9.1
9.1

Hi, Building a commercial POS platform with payment processing flexibility is ambitious—the architecture decisions you make now will make or break scaling later. We've built retail systems with multi-processor payment integration and cloud sync. The placeholder budget and timeline above—let's nail down real numbers once we map out your payment terminal strategy and store sync requirements. Can we connect? Regards, Nurul Hasan
$20 USD in 14 days
8.7
8.7

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in PHP, C# Programming, Software Architecture, MySQL, Software Development, Cloud Development, API Integration, Point of Sale, Payment Processing and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$20 USD in 5 days
8.9
8.9

With extensive experience in POS software development, I understand the need for a robust retail POS system that can scale into a commercial platform. My team specializes in building custom POS solutions with features like inventory management and payment processing. Can you share more details about your preferred payment gateway integration for seamless transactions? Regards, Yogesh Kumar
$8 USD in 31 days
8.4
8.4

Hi, I can develop your custom retail POS platform from the ground up, with a scalable architecture designed for multi-store and future multi-tenant SaaS expansion. I have already developed similar POS/retail platforms involving inventory, barcode scanning, employee roles, sales/returns, cash management, reporting, and third-party API integrations. Development approach: Paid discovery & architecture — workflows, tech stack, database, security and roadmap. POS core — products, inventory, barcode, customers, employees, sales, refunds and discounts. Hardware — barcode scanners, receipt printers, cash drawers and payment terminals. Payment architecture — processor/terminal integration with a flexible abstraction layer for future providers. Cloud admin — multi-store, registers, users, analytics and centralized management. Testing, synchronization, deployment and ongoing support. I can also help architect the platform for future merchant onboarding, subscriptions and additional payment/service revenue. Two questions: Which existing POS will you provide as the functional reference? Which payment processor and terminal hardware do you plan to use initially? I’m interested in becoming a long-term development partner for this platform. Thanks Rahul
$12 USD in 40 days
8.5
8.5

Hi, I can build a custom retail POS platform that meets your specific requirements and addresses key considerations for scalability and integration. To start, I will analyze the existing POS system you provide as a functional reference. This will help in understanding the workflow and functionality you desire. I will focus on defining the system architecture, selecting the right technology stack, and ensuring a robust database structure that supports multi-tenant architecture. It's crucial to consider potential hidden risks such as payment processing compliance and hardware integration challenges. I will ensure that the payment architecture is flexible enough to accommodate multiple processors in the future. Testing will involve verifying the synchronization between locations and ensuring that all hardware components work seamlessly together. To get started, I will need access to the existing POS system for reference, as well as any specific requirements you have for the technology stack and payment processors. Thanks!
$25 USD in 40 days
8.4
8.4

Hi Wesam, I’m interested in working on your POS and payment terminal project. I have experience with POS systems, payment integrations, APIs, and scalable multi-tenant applications. I understand that the POS needs to communicate directly with payment terminals, while keeping the payment architecture flexible for future processors such as Stripe, Square, Adyen, Fiserv, or similar. I’m also comfortable starting with a paid discovery/architecture phase to define the technology stack, database structure, payment and hardware integration, security, roadmap, cost, and timeline before moving into full development. I’m looking for a long-term partnership rather than a one-off project, and I’d be happy to share relevant POS/payment work and discuss the architecture in detail. Thank you. Ismail Rehman.
$20 USD in 40 days
8.1
8.1

Hi, I’m interested in partnering with you on this POS platform. I have experience with full-stack systems involving **POS workflows, inventory, barcode scanning, user roles, multi-location management, APIs, and payment integrations**. I understand that the best starting point is a **paid discovery/architecture phase**. I can review your reference POS and prepare the recommended architecture, technology stack, database structure, payment-terminal integration approach, multi-tenant design, development roadmap, timeline, and estimated cost. For the architecture, I would focus on scalability from day one so the system can support multiple merchants, stores, registers, hardware devices, and payment providers in the future. I’m also comfortable working with REST APIs, cloud infrastructure, secure payment flows, and third-party hardware integrations. I’d be happy to start with the discovery phase and then continue as a long-term development partner. Best regards
$12 USD in 40 days
8.2
8.2

Dear client, As discussed i am placing a bid here. Kindly reply back to me and we will start when you want after finalising terms
$15 USD in 40 days
7.2
7.2

Hello, Custom Retail POS System Development {{{ I HAVE CREATED SIMILAR POS, INVENTORY, PAYMENT, AND MULTI-STORE SYSTEMS BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your custom retail POS requirements and understand that you need a scalable POS platform that can first support your own retail stores and later grow into a commercial SaaS product for multiple businesses. I have 11+ years of software and automation development experience and have created similar POS, inventory, payment integration, API, cloud, and business management systems before. I can show you relevant previous work so you can evaluate my experience with this type of project. I can develop the core POS functionality including product and inventory management, barcode scanning, employee accounts and permissions, cash register management, sales, returns, refunds, discounts, customer management, receipt printing, reporting, and analytics. I will design the system for multiple stores and registers with reliable synchronization and a centralized cloud administration platform. The architecture will be multi-tenant ready so additional merchants, locations, registers, and integrations can be added without rebuilding the core system. Thanks, Christina
$12 USD in 40 days
7.5
7.5

Hi there, I specialize in engineering multi-tenant POS platforms and integrating complex local hardware with cloud-based infrastructure. Running my own active company, I understand both the immediate operational demands of deploying software to your own retail stores and the architectural foresight required to scale that system into a commercial B2B SaaS product. Your roadmap—starting with internal deployment and transitioning to a multi-merchant subscription model—requires a highly specific architecture, particularly regarding secure, multi-tenant data isolation and processor-agnostic payment handling.
$12 USD in 40 days
7.0
7.0

Hi, I'm Denis, a full-stack developer who has worked on point-of-sale and retail management systems with payment integrations and multi-location support. I understand you need a custom POS platform that starts with your stores but scales into a commercial product. The core challenge will be designing a secure, compliant payment architecture that supports multiple processors while keeping the POS interface fast for cashiers. Hardware integration—especially barcode scanners, receipt printers, and payment terminals—will need reliable, low-latency communication. I’ve built similar systems where inventory, sales, and employee data had to stay in sync across multiple registers and locations. For the discovery phase, I’d review your existing POS to map the exact workflows and define the database schema, API layer, and cloud infrastructure needed for scalability. The payment architecture will focus on tokenization, end-to-end encryption, and processor-agnostic design so switching providers later is straightforward. The biggest risks are PCI compliance and hardware compatibility. I’d address those early by locking down API security, validating all terminal integrations, and building fallback handling for offline scenarios. I can start working right away. Let's connect and discuss the details. Thanks, Denis.
$15 USD in 40 days
6.3
6.3

Hello! We can build a custom retail POS platform for your stores and future growth. 1. Do you already have a reference system or workflow we should follow? 2. Which payment terminal and processor should we prioritize first? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$12 USD in 40 days
6.7
6.7

Hello!! A custom retail POS system can be developed to handle sales, inventory, payments, receipts, customers, and reporting in one reliable system, with a smooth workflow for both staff and administrators. * Which payment gateways or payment terminals need to be integrated? * Do you need barcode scanners, receipt printers, cash drawers, or other POS hardware? * Should the system support multiple stores, branches, or user roles? The solution will include product and inventory management, barcode scanning, sales and returns, customer management, payment processing, receipt generation, discounts, user roles, shift management, daily/Z reports, stock tracking, and an admin dashboard. Relevant POS, payment processing, inventory, database, and retail management projects have been completed before, focusing on accurate transactions, reliable reporting, and simple day-to-day operation. Let us discuss your current retail workflow and hardware requirements so we can plan the POS around your exact needs. Best regards Farhin B
$4 USD in 40 days
6.8
6.8

As a seasoned software developer with extensive experience in building scalable, AI-driven web and mobile applications, I am confident that I am the ideal candidate to create your custom retail Point-of-Sale system. With a portfolio of over 60 completed projects in my 8+ year career, including diverse POS systems, inventory management platforms and payment processing integrations, I offer an expansive skillset that aligns perfectly with your requirements. Lastly, my approach encompasses a thorough paid discovery/architecture phase to ensure a clear roadmap with estimated costs and timelines for your project. As your long-term development partner, I guarantee a collaborative effort that revolves around strong communication and structured development tailored to meet your specific needs. My commitment isn't just about writing code; it's about building a dependable solution ready to adapt and fuel your business growth. Let’s connect further to explore how we can bring your custom retail POS vision to life.
$12 USD in 40 days
6.7
6.7

With over 17 years of experience in software development, especially in projects focused on web and windows-based systems like yours, I am confident that my team will deliver the excellence you seek from a POS system developer. We have a profound understanding of ASP.net, C#.Net, and SQL Server which are the ideal technologies for building robust and scalable retail POS systems. What sets me apart from other candidates **is my specialized knowledge** of Python Scraping and Automation Development. This skill is particularly relevant given the variety of applications your project entails, such as inventory management or receipt printing. Additionally, given the long-term nature of your project, our ability to offer full-service development solutions ranging from desktop to Android provides additional assurance and flexibility for any future requirements you may have for your increasing multi-tenant needs or expanding businesses. My portfolio speaks volumes about the breadth of my capabilities. In particular, I'd like to direct your attention to our prior work in stock trading – a field where precision, synchronization and data security is just as vital as in POS systems. Finally, I completely understand the significance of payment processing for your business model. My team's experience with popular payment processors like Square, Stripe, Adyen etc ensures we can navigate this section with ease while giving you maximum flexibility going forward.
$12 USD in 40 days
6.3
6.3

Hello dear, Greetings from Md. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience, I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from (RUET). We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why Choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam
$12 USD in 40 days
6.1
6.1

Hello, With my comprehensive knowledge in the fields of Computer Science and POS development, I am well-prepared to undertake your project. I have a hands-on expertise in building scalable and performance-oriented applications, which I believe will be essential for the seamless establishment and management of your multi-store retail system. Moreover, my experiences in crafting cloud-based solutions, integrating payment processors like Square and Stripe, and creating multi-location systems have prepared me perfectly for this task. Besides, my skills with front-end and back-end technologies like React Native, Node.js, MySQL, PHP are aligned to optimize your use of user interface and database management systems. With a holistic approach to analyzing and understanding business needs, I can deftly translate them into robust technical solutions that ensure optimal functionality of all aspects of your POS system. Lastly, I believe in fostering long-term relationships with my clients. This project for me is not just about delivering you a custom retail POS system; it's about partnering with you to develop a commercial POS platform that caters to the needs of both present and future businesses. Let us kickstart this journey by collaborating on a paid discovery/architecture phase to lay down an actionable roadmap with estimated cost and timeline so we can move forward confidently into the execution phase. Together, we will create an indus Thanks!
$28 USD in 25 days
6.1
6.1

I have read your job post. We've previously worked on numerous end-to-end POS systems, inventory management, and multi-location systems, which make us thoroughly equipped to handle all the requirements outlined in your project description. Our expertise also covers integrated payment processing with known platforms like Square and Stripe, aligning perfectly with your need for differentiating revenue generation channels. Furthermore, our understanding of the retail industry's dynamism reinforces our ability to create solutions that can evolve alongside your business vision. Developing using cutting-edge technologies like Node.js, React.js, MongoDB/Firebase, we engineer systems with scalable architecture that can accommodate multiple merchants, locations, and registers; ensuring smooth workflow even as businesses scale. Additionally, we have significant experience with APIs and payment compliance which will be crucial for creating a cloud-based POS platform integrated seamlessly with various third-party services. Your desire for a long-standing development partner resonates well with us since we take tremendous pride in delivering high-quality solutions that exceed client expectations. It would be an honor to work hand in hand with you through every stage of this developmental journey - from the paid discovery phase right up until the final product rollout. So let's get started together on creating your revolutionary Custom Retail POS system!
$15 USD in 40 days
6.1
6.1

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