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I am looking for a full-stack team that can deliver both a responsive website and companion mobile app (iOS and Android) for an e-commerce marketplace that supports live auctions alongside fixed-price sales. Auction flow • Real-time bidding is essential; users must see incoming bids update instantly without refreshing. • After a lot closes, the platform should automatically notify the winner and trigger the checkout process. Direct-sale flow • Every product needs a clear “Buy It Now” button. • Listings must accept rich descriptions, multiple images, and variants. • Buyers should be able to rate sellers and leave written reviews that appear on the seller’s profile. Payments At checkout users may pay by credit/debit card, PayPal, or direct bank transfer. Please factor in secure tokenisation, PCI-compliant handling, and a sandbox environment for tests. Key deliverables 1. Cross-platform mobile app (Flutter, React Native, or similar) released to App Store & Google Play 2. Responsive web front-end (React, Vue, or similar) deployed to my cloud host 3. Scalable back-end with admin dashboard for product, auction, and user management 4. Payment gateway integrations for all three methods with automated settlement reports 5. Documentation and hand-over session so my in-house team can perform routine maintenance I’ll provide UI wireframes and domain once development kicks off, but I’m eager to see your proposed tech stack, timeline, and any similar projects you have launched.
Mã dự án: 40232944
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Hoạt động 11 ngày trước
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128 freelancer chào giá trung bình $1.254 USD cho công việc này

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have now earned 'Expertise' level in AI, ChatGpt and a couple of other AI platforms for App development and other Chatbot work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
$1.400 USD trong 20 ngày
9,7
9,7

With over a decade of experience in web and mobile development, I understand the importance of creating a seamless and efficient auction and direct sale platform like the one you envision. Real-time bidding, automatic notifications, secure payment options, and user-friendly interfaces are crucial for the success of your e-commerce marketplace. In the fintech and eCommerce sectors, I have successfully delivered projects similar to yours, incorporating innovative features and robust functionalities. My expertise in Flutter, React Native, and payment gateways aligns perfectly with your project requirements, ensuring a high-quality, cross-platform mobile app and responsive web front-end. I am eager to discuss your proposed tech stack, timeline, and past projects to showcase how my skills can bring your vision to life. Let's collaborate to create a dynamic solution that exceeds your expectations. Contact me to start the conversation and turn your project into a reality.
$1.200 USD trong 20 ngày
9,0
9,0

⭐⭐⭐⭐⭐ Dear Valuable Client, CnELIndia, led by Raman Ladhani, can deliver your full-stack e-commerce marketplace with both responsive web and cross-platform mobile apps. For the auction flow, we will implement real-time bidding using WebSockets to ensure live updates and automatic winner notifications with seamless checkout triggers. Direct-sale functionality will support rich listings, multiple images, variants, and buyer reviews integrated into seller profiles. Our payment integration plan includes credit/debit cards, PayPal, and bank transfers with PCI-compliant tokenization and a sandbox environment for secure testing. We propose React for web and Flutter for iOS/Android apps, backed by a scalable PHP-based API with an admin dashboard for auctions, products, and user management. CnELIndia will also provide detailed documentation and a hand-over session to enable your team to maintain the platform independently. Prior experience includes launching real-time marketplace apps with similar auction and payment flows. Timeline, milestones, and demo-ready prototypes can be shared immediately upon project kickoff.
$1.125 USD trong 7 ngày
9,0
9,0

Hello, HAVE HANDS-ON EXPERIENCE WITH FULL-STACK MARKETPLACE & AUCTION PLATFORMS I have 9+ years in full-stack development, I can deliver a responsive website and companion cross-platform mobile app (iOS & Android) supporting real-time auctions and direct sales. I understand the critical need for instant bid updates, secure payments, and scalable backend services. Core Features -- Real-time auction engine with WebSocket updates -- “Buy It Now” direct-sale listings with rich media and variants -- User reviews & seller ratings -- Secure payments: credit/debit, PayPal, bank transfer (PCI-compliant) -- Admin dashboard for products, auctions, users, and reporting Modules -- Frontend (Web: React / Vue; Mobile: Flutter / React Native) -- Backend: Node.js / Python microservices with WebSocket support -- Database: PostgreSQL / MongoDB for transactions & listings -- Notification & email services -- Payment gateway integrations with sandbox testing User Roles -- Buyer (browse, bid, buy, review) -- Seller (listings, auctions, manage inventory) -- Admin (platform management, reporting, user moderation) I deliver fully documented code, cloud-ready deployment, cross-platform apps, and a complete handover with maintenance guidance. Thanks & regards Julian
$750 USD trong 7 ngày
8,5
8,5

I HAVE BUILT AND LAUNCHED REAL-TIME E-COMMERCE & AUCTION PLATFORMS — TURNING COMPLEX MARKETPLACES INTO FAST, SECURE, REVENUE-READY PRODUCTS. We are a full-stack team capable of delivering both the responsive web platform and cross-platform mobile apps (iOS & Android) with real-time performance and scalability in mind. We will take full ownership from architecture to app store deployment. Core Features • Live auction system with real-time bidding (WebSockets) • Automatic winner notification & instant checkout trigger • Fixed-price “Buy It Now” product flow • Rich product listings (variants, images, descriptions) • Seller ratings & written reviews with public profiles • Secure payments: Card, PayPal, Bank Transfer (PCI-compliant, tokenised) • Admin dashboard for users, auctions, products & reports User Roles • Buyers • Sellers • Admin Tech Stack (Proposed) • Frontend: React (Web), Flutter or React Native (Mobile) • Backend: Node.js / Laravel with scalable API architecture • Real-time: WebSockets • Cloud-ready, modular, and API-first for future expansion Delivery & Ownership • Full source code ownership • Clean, documented codebase • App Store & Play Store deployment • Complete handover & walkthrough We include 2 YEARS OF FREE ONGOING SUPPORT POST-LAUNCH for bug fixes, stability, and guidance.
$1.125 USD trong 7 ngày
8,3
8,3

Hi, I will build your e-commerce marketplace with live auction (real-time bidding with instant updates), Buy It Now direct sales, multi-image listings with variants, buyer reviews, and cross-platform mobile apps for iOS and Android alongside a responsive web frontend. Payment integration will cover card, PayPal, and bank transfer with PCI-compliant tokenization. For the real-time auction, I will use WebSocket connections with a server-side bid validation layer that prevents race conditions, so when two bids arrive within milliseconds the system processes them in strict order and both users see the correct winning bid instantly. Questions: 1) Do you have the UI wireframes ready, or do you need help with the design phase? 2) Should the admin dashboard support setting reserve prices and automatic lot extensions on last-second bids? 3) Which payment gateway region should be prioritized (specific country or global)? Looking forward to discussing further. Best regards, Kamran
$750 USD trong 14 ngày
8,5
8,5

Hi there, I understand you're in need of a comprehensive solution for an e-commerce marketplace with both live auctions and direct sales. Our experienced full-stack team excels in delivering responsive websites and mobile apps that meet these requirements. Here's how we’ll meet your needs: - **Real-Time Bidding:** Seamless real-time bidding experience without refreshing. - **User-Friendly Sales Flow:** Easy navigation with a ‘Buy It Now’ button and detailed product listings. - **Robust Payment Integration:** PCI-compliant payments with various options. We have successfully completed similar projects and are eager to leverage our expertise to ensure yours is a success. Let's discuss our tech stack and proposed timeline. What specific features or functionalities do you consider essential for your platform's success?
$1.250 USD trong 28 ngày
8,1
8,1

Hi, We’re a full-stack team experienced in building scalable e-commerce marketplaces with real-time auction systems. **Proposed Stack:** • Flutter (iOS & Android) • React (responsive web) • Node.js + PostgreSQL backend • WebSockets for instant bid updates • AWS infrastructure • Stripe + PayPal integrations with PCI-compliant tokenization & sandbox testing We’ll deliver: live bidding with auto winner checkout, Buy-It-Now listings with variants, seller ratings & reviews, admin dashboard, and automated settlement reporting. **Estimated timeline:**8-9 weeks including deployment and documentation handover. Happy to share similar marketplace projects and discuss milestones.
$1.125 USD trong 7 ngày
7,5
7,5

Hello, I’m reaching out from Smart Sols, a professional software development company with over 9 years of experience specializing in full-stack solutions including Laravel, Vue.js, Flutter, and Figma design. We fully understand your need for an Auction & Direct Sale platform with a responsive website and a companion mobile app. Our skilled team is equipped to handle both frontend and backend development efficiently, ensuring a seamless user experience across devices. Given the project scope and complexity of integrating auction features along with direct sales functionality, we are confident in delivering a robust, scalable platform tailored to your requirements. We pride ourselves on clear communication and timely delivery, and are excited about the opportunity to collaborate with you. Thank you for considering our bid, and we look forward to potentially working together on this dynamic project.
$1.500 USD trong 40 ngày
6,9
6,9

Hi I can deliver your full e-commerce marketplace across web and mobile with real-time auctions, fixed-price sales, and secure multi-method payments. The main technical challenge is achieving instant bid updates without page refresh, and I solve this using event-driven back-end architecture and persistent real-time connections for synchronized bidding across all devices. I’ll build responsive web interfaces and cross-platform mobile apps with rich listings, variants, seller reviews, and automated post-auction workflows. The back end will support scalable auction logic, seller dashboards, settlement reporting, and clean admin controls. Payment integrations will include card tokenization, PayPal flows, and bank transfer handling inside a compliant, testable environment. Everything will be documented so your in-house team can manage updates easily. Thanks, Hercules
$1.500 USD trong 7 ngày
6,8
6,8

Hi, Auction platforms break easily when real-time bidding, payments, and checkout aren’t perfectly synced — even a small delay can cause wrong winners or failed transactions. The key is building a fast, real-time system where bids update instantly and both auction and direct sales work seamlessly together. Here’s how I’d approach your platform: Responsive web platform and cross-platform mobile apps so users can bid or buy from any device Real-time bidding engine where users see incoming bids instantly and auctions close reliably Direct “Buy It Now” flow with clean product pages, variants, and smooth checkout Secure payment integration (cards, PayPal, bank transfer) with proper tracking and settlement reports Seller profiles with ratings, reviews, and transaction history Admin dashboard to manage listings, auctions, users, payments, and platform activity I’ll ensure the system is fast, secure, and scalable so it handles live bidding without delays and supports future growth smoothly. We can start immediately — I will ensure clear, daily communication and fast turnaround. You’ll always know the exact progress. Let’s connect on chat to review your wireframes and define the roadmap to launch.
$1.200 USD trong 45 ngày
6,6
6,6

Hello, I hope you are doing well. I understand that you are looking to build a AUCTION AND DIRECT SALE PLATFORM and I would be happy to help. I have extensive experience in designing and developing Application and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.
$750 USD trong 7 ngày
7,2
7,2

Hello, I have over 8 years building e-commerce marketplaces with live auctions, real-time bidding, and mobile apps for startups and enterprises. I will deliver a React responsive web front-end, Flutter mobile apps (iOS and Android), a scalable Node.js backend with WebSocket real-time bidding, PostgreSQL + Redis, an admin dashboard, and integrations for Stripe (card tokenisation), PayPal, and bank transfer with sandbox and PCI-compliant handling and automated settlement reports. Why We Work Together: - Proven experience with auction platforms and low-latency bidding. - Full-stack team handling App Store/Play releases and cloud deployment. - Clear documentation, hand-over sessions, and ongoing support options. Best Regards, Sherman
$1.125 USD trong 7 ngày
6,4
6,4

Hi! I’m an expert full-stack developer with 9+ years of experience building responsive web platforms and cross-platform mobile apps for e-commerce marketplaces with auction and direct-sale functionality. Here's how I can help: * Develop a responsive web front-end (React/Vue) and cross-platform mobile app (Flutter/React Native) with real-time bidding and “Buy It Now” functionality * Implement secure payment integrations for credit/debit cards, PayPal, and bank transfers with PCI-compliant tokenization and sandbox testing * Build scalable back-end and admin dashboard for managing products, auctions, users, and automated settlement reports * Enable automatic winner notifications, order checkout, and buyer review systems for seamless operations * Deliver full documentation and a hand-over session so your in-house team can maintain and expand the platform Could you confirm the expected peak number of concurrent auction users so I can plan the back-end architecture for optimal performance?
$1.350 USD trong 7 ngày
5,8
5,8

hi, i have reviewed the details of your project. we have strong experience building ecommerce marketplaces with live auctions and mobile apps. we can deliver both the responsive website and cross platform app with secure payments and real time bidding. we will use react for the web and flutter for ios and android app. for live auctions, we will implement websocket based real time bidding so users see updates instantly. once an auction ends, the system will notify the winner and move them directly to checkout. the backend will be developed in php with a scalable structure and admin dashboard to manage products, auctions, users, and reports. we will integrate card payments, paypal, and bank transfer with secure tokenisation, pci compliant handling, and sandbox testing. let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. i will share my portfolio in the chat. mughiraa
$1.125 USD trong 7 ngày
5,6
5,6

Building a platform with real-time auctions and direct sales alongside a cross-channel buying experience is fully doable, and I’ve helped clients launch similar marketplaces with instant bid updates and smooth checkout flows. For real-time bidding, using WebSocket-based communication will ensure bids show up without refreshing, while backend triggers can notify winners and push them into checkout. The “Buy It Now” flow will include easy product variants and seller ratings visible on profiles, just like your specs. PCI-compliant payment handling with tokenization and sandbox testing is standard in these builds, and I can integrate Stripe or PayPal to cover credit cards, PayPal, and bank transfers securely. I recommend React for the web frontend paired with React Native for mobile apps to maximize code sharing and speed up releases to both stores. The backend will be API-driven (Node.js or similar) with an admin dashboard to manage auctions, products, and users in one place. Do you prefer a specific payment gateway for tokenization, or should I suggest the most common all-in-one solution? Also, is there a preferred timeline you have in mind? Ready to start once you share the wireframes and domain details.
$750 USD trong 7 ngày
5,4
5,4

hello With my 8 years of experience in mobile app and web development, I am well-equipped to bring your Auction & Direct Sale Platform project to life. Having worked on numerous similar projects before, I have a clear understanding of the requirements and can ensure smooth execution. My specialization in creating user-friendly websites and applications aligns perfectly with your needs for a responsive website and companion mobile app. In terms of technology, I recommend using React Native or a similar framework to build the cross-platform mobile app, as it provides faster development and a consistent experience across iOS and Android. For the web front-end, I suggest using React or Vue to ensure a responsive and scalable solution. My familiarity with these technologies will undoubtedly save precious time without compromising on quality. Furthermore, my skillset extends to PHP which will come in handy for building the scalable back-end for your marketplace platform. It's important to note that I prioritize clean code structure, strong performance, and user-experience in all my work, which you've specified as key deliverables as well. To ease your worries about payment security, I expertise in integrating payment gateways like credit/debit card services, PayPal, and direct bank transfers with proper tokenization management in place.
$1.000 USD trong 90 ngày
5,2
5,2

Hello, I read your project description it lies in my skillset. I can deliver your complete marketplace ecosystem (responsive web + iOS + Android) with real-time auctions and fixed-price sales built on a scalable, production-ready architecture. Proposed stack: Flutter for cross-platform mobile apps, React for the web frontend, and a robust backend (Laravel or Node.js) with WebSockets for true real-time bidding. Estimated timeline: 10–12 weeks for MVP to store release. I’ve worked on marketplace-style systems with live features and payment integrations and can share relevant examples. Ready to review your wireframes and finalize the technical roadmap. I will provide you quality work. Lets chat and discuss things in detail.
$1.000 USD trong 20 ngày
5,4
5,4

You are not looking for a coder. You are looking for someone who can build this properly. That is exactly why your project stood out. Your plan to create a responsive e-commerce marketplace with real-time auction capabilities and secure multi-method payments reflects a focus on seamless user experience and robust reliability. This aligns directly with how we design scalable, real-time digital ecosystems at DigitaSyndicate. At DigitaSyndicate, a UK-based digital systems agency, we build precision-engineered automation, modern web platforms, and AI-driven systems designed for performance and long-term scalability. Our approach delivers intuitive and secure solutions, ensuring your auction flow updates instantly without refreshes, payment handling meets PCI compliance, and the admin dashboard simplifies complex management. Having successfully launched similar marketplaces with React, Flutter, and secure payment integrations, we understand the criticality of streamlined, future-proof systems. Can you share your main priorities and timeline so I can map out the right execution plan for you? Casper M. Project Lead | DigitaSyndicate Precision-Built Digital Systems.
$1.150 USD trong 14 ngày
5,5
5,5

✋ Hi There!!! ✋ The Goal of the project:- TO BUILD A SCALABLE AUCTION AND DIRECT SALE MARKETPLACE WITH REAL TIME BIDDING, SECURE PAYMENTS, WEB PLATFORM, AND CROSS PLATFORM MOBILE APPS. I carefully reviewed your requirement for live auction flow with instant bid updates, fixed price sales, seller ratings, secure PCI compliant payments, and full admin control with proper documentation and handover. With 9+ years experience as a full stack developer, I have delivered similar marketplace and bidding platforms with mobile apps and secure payment integrations. 1. Real time bidding system with auto winner notification and checkout trigger 2. Cross platform mobile app and responsive web front end deployment 3. Secure payment gateway integration with tokenisation and reports I will provide clean UI implementation, structured database management, admin dashboard, full testing, deployment support, and full source code delivery at completion. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$754 USD trong 14 ngày
5,1
5,1

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