Full Stack Developer — Two-Sided Transport Marketplace (Web + Mobile App) SAAS

@shyamvijaywargiy

Hello , Nice to meet you! I will design and develop mobile application with web admin panel according to your requirement , ping me on chat so we can discuss this more. I am expert and 9 years experienced Android /iPhone app developer with backend work that you are looking for. I will provide you perfect product as you want so you would be happy with it. I am always ready to discuss about your project in detail as well as start from right now. The following are my services that i provide :- 1. Daily or Weekly update. 2. Clean and Robust code. 3. Responsible for communication for more than 15 to 20 hours each day. 4. Free Bug-Fix support for 1 year after completion. 5. Source code delivery. You can have a look at my profile by this link : https://www.freelancer.com/u/shyamvijaywargiy Let's contact me to discuss further details with me. Thanks Shyam

@irsolutions

With over a decade of experience in full-stack architecture and high-scale systems, I understand your goal of building a two-sided transport and logistics marketplace with complex payment, dispute resolution, and marketplace core functionalities. My background in scaling for over 1 million users and developing high-security FinTech systems directly applies to the challenges of your project. A strategic insight for ensuring scalability and security in this project is to implement a robust transactional flow with multi-party payments, structured dispute workflows, and real-time updates. I have successfully built and scaled a Telegram Mini App serving over 1 million users, showcasing my ability to handle complex financial transactions and high-security requirements. I encourage you to reach out so we can discuss the roadmap for your project and how I can bring my expertise to help you achieve your goals efficiently and securely.

@diektech

Hi — Elias here from Miami. This is a true marketplace with escrow-style payments, not a booking platform. The biggest challenge is keeping financial transactions, disputes, and payouts synchronized while maintaining a complete audit trail. I build scalable marketplace platforms with secure APIs, payment integrations, real-time updates, admin dashboards, and cross-platform applications. My approach is to keep payments, escrow logic, disputes, messaging, and logistics modular so the platform remains reliable as it grows. Answers to your questions: 1. I've worked on marketplace solutions involving provider onboarding, multi-party payments, escrow workflows, and dispute management as the lead full-stack developer. I can share relevant examples privately. 2. For a $1,000 job with a 40% refund, funds remain held until the dispute is resolved. The final settlement determines the platform commission and provider payout, while the customer refund is processed using Payment Intents, Transfers, Transfer Reversals, Refunds, and webhook reconciliation. 3. The hardest part is keeping payment state in sync with business state. I've seen duplicate webhooks, payout failures, race conditions, and partial refunds cause reconciliation issues without idempotent processing and detailed audit logs. Looking forward to hearing from you.

@shubhamshrimal7

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your two sided marketplace project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham

@technosystem

With a wealth of experience in developing complex, multi-party platforms, it would be a true pleasure to bring my expertise to the table for your two-sided transport and logistics marketplace. One standout project from my portfolio is the 'ScribbleArt' app (available on both Android and iOS), where I developed a sophisticated escrow system that holds funds till the completion of the commissioned artwork while also allowing for refunds under certain conditions. This experience would be extremely relevant in tackling the intricate payments dynamics of your project. I have significant exposure to similar functionalities involving funds handling, platform commissions, provider payouts, and refund paths. Additionally, I understand that maintaining transparency and security is critical in your setup; for this reason, I have worked extensively with third-party API integrations related to payments, geocoding, notifications, and more. My profound knowledge of webhook handling and background job processing will ensure real-time updates about every transaction - crucial for dispute resolution. Further adding value to your project are my skills in cloud deployment, CI/CD, and security hardening which will propel your platform towards reliability and scalability.

@fennel

Hi, I'd be happy to help build your transport and logistics marketplace. With 10+ years of experience and 500+ successfully delivered projects, I have experience developing scalable marketplace platforms with secure payment integrations, role-based access, REST APIs, real-time tracking, and admin dashboards. I can develop the complete solution including customer/provider portals, bidding, escrow-style payment workflows, disputes, evidence management, GPS tracking, messaging, notifications, and cross-platform mobile apps with a shared backend. The platform will be secure, scalable, and designed for high-volume transactions. I'm happy to review the NDA and provide a fixed-price quote after reviewing the complete scope document. Best regards, Ram S Shukla

@mobiappsoftware

Hello, PLEASE COME ON CHAT SO I WILL ANSWER YOUR ALL THREE QUESTIONS . I will develop your TWO SIDED TRANSPORT AND LOGISTICS MARKETPLACE MOBILE APPLICATION for Android and IOS both platforms with Web admin panel. I am Tulsiram. I have 10 years of experience working as Native and Crossplatform mobile application developer. I am understood your requirements. I am glad if we are working together. If you interested then let's connect. I will provide you Daily updates ,source code after development completed, 1 Year maintenance Support in following Steps: I will available daily 10-12 hours in Working days for you. I will provide you regular updates according to which modules we will decided. After approval each module by you then i will provide your complete source code of your project and will shift on your Domain. Thanks

@codefusion53

Hi I understand you are looking for a senior full-stack developer to build a two-sided transport marketplace that works across web and mobile, with a smooth UX, solid database design, secure API integrations, and reliable payment processing so both shippers and carriers can complete transactions end-to-end. I’m Justin, an AI & Web Developer focused on building intelligent, scalable, user-focused applications with clear workflows. For marketplaces, my approach is practical: define the user journeys first, then translate them into repeatable UI patterns, dependable APIs, and data models that support matching, messaging, and payments without brittle edge cases. For your project, I’d structure delivery around core platform slices: confirm the marketplace roles and flows, design the data model and API contracts, implement the web and mobile experiences, then integrate payments and transaction states. Each phase ends with a working setup (e.g., user onboarding + listings, then booking/offer flow, then payment capture/refund handling) so progress is tangible and verifiable. I can also include reusable documentation for the API and payment flows, plus a simple admin-oriented checklist for common operational scenarios like failed payments, cancellations, and dispute-ready record keeping. Best, Justin

@ciss26

Hi there, Hope you are doing well I'd love to help build your two-sided transport and logistics marketplace. Our team has extensive experience developing scalable marketplaces, logistics, fintech, and on-demand platforms with secure payment workflows, real-time tracking, and enterprise-grade architectures. Key Features Two-Sided Marketplace (Customer & Service Provider) Secure User Authentication & Role-Based Access Provider Registration, KYC & Document Verification Job Posting & Competitive Bidding System Real-Time GPS Tracking & Route Monitoring Escrow Payment Flow (Hold, Release, Refund & Partial Refund) Multi-Party Payment & Commission Management In-App Chat with Contact Masking Photo Upload, Digital Signature & Proof of Delivery Structured Dispute & Resolution Management Ratings & Reviews Push Notifications, SMS & Email Alerts Admin Dashboard for Users, Jobs, Payments, Reports & Analytics Financial Reports, Audit Logs & Transaction History Webhooks, Background Jobs & Real-Time Updates API Documentation & Scalable Cloud Deployment Our Technical Approach Frontend: React.js (Web) + Flutter (iOS & Android) Backend: Node.js + Express with REST APIs Database: PostgreSQL with Redis for caching and background jobs Looking forward to working with you. Thanks & Regards, Dheeraj K

@vladang

The thing that bites in production isn't the happy path, it's the chargeback that lands after you've already paid the provider. Stripe pulls it back from your platform balance, the provider's money is gone, and you go negative. So payout timing and the ledger matter more than any screen. I'd keep your database as the source of truth — an append-only ledger where every hold, commission, release, refund and reversal is a row tied to a job — and treat Stripe as just where the cash sits. Your $1,000 case, using separate charges and transfers (the only real way to hold funds on Stripe): customer pays via a PaymentIntent captured to the platform balance, no transfer at charge time. The 40% resolution is a $400 Refund on that PaymentIntent. Of the $600 left, commission is applied by simply not transferring it — a $540 Transfer to the provider's connected account, platform keeps $60. If they'd already been paid, it's a Transfer Reversal instead, which is exactly where negative balances come from. Hardest part: Stripe has no true escrow, so you hold funds on your own balance and carry the negative-balance risk. I manage it with payout delays, a reserve, and reversible transfers — never trusting Stripe's balance as your accounting. One thing worth settling early: is commission on the full job value or only the released amount? It changes every partial-refund calculation.

@gauravgargcs

Hello, Hope you are doing well, As a Senior Full Stack Developer with extensive experience in creating complex marketplace platforms, I am confident that I can successfully handle the challenges you have outlined for your two-sided transport and logistics project. With a strong emphasis on payment processing, multi-party fund management, and dispute resolution, I have built custom platforms that hold funds between multiple parties and release them upon confirmation, incorporating conditional refunds like the 40% scenario you furnished. One notable achievement was my work on an e-commerce platform where funds were held until orders were delivered safely. Furthermore, I understand the value of establishing secure and efficient third-party API integrations, a crucial requirement for your project. From working with different payment providers, I've learned how vital it is to pay attention to even small details at the integration stage to avoid potential issues. My background in cloud deployment and monitoring all through Continuous Integration/Continuous Deployment (CI/CD) pipelines is another plus for your project. Feel free to reach out at any time to delve further into your detailed scope document or to address any emerging queries you might have. Together we will create a solution that is a cut above the rest! thank you Regards Gaurav Garg

@abhishek060

Hello, Your project goes well beyond a standard marketplace and requires careful handling of escrow-style payments, disputes, payouts, and financial workflows. I can help build a secure and scalable platform with a shared backend powering the responsive web application and both mobile apps. The solution will include multi-party payment flows with held funds, commission calculations, partial refunds and releases, webhook-driven transaction handling, and a complete audit trail for disputes and financial decisions. It will also support provider verification, competitive bidding, live GPS tracking, in-platform messaging, notifications, ratings and reviews, and a comprehensive admin console. I recommend a modern full-stack architecture using React.js for the web frontend and Node.js/Express or Laravel with PostgreSQL for transactional and financial data. The platform will be designed around secure APIs, background job processing, real-time updates, and production-ready deployment practices. Before development begins, we can finalize the most suitable payment provider for escrow-style flows and review the complete scope to ensure the payment, payout, and dispute workflows are designed correctly from day one. Best regards, Abhishek

@softwarelinkerrs

As the founder and head developer at SoftwareLinkers, I am very confident in our ability to meet all of your marketplace's complex needs. We develop innovative applications and solutions for clients across many diverse industries, from education and e-learning to finance and logistics. Our comprehensive skill-set covers every aspect of your project requirements: API integration, mobile app development, payment gateway integration, even AI-powered features if need be! Among the reasons clients trust and choose us are our high client retention rate and solid track record for delivering on-time with an excellent rating on the platform. We also bring a deep level of understanding for how business goals translate into technical systems. It's not only about writing code for us; we constantly keep your objectives in mind ensuring our final solution will be secure, scalable, future-ready and ultimately effective in achieving your business goals. In addition to those reasons, perhaps the most important aspect is our unwavering commitment to quality and our determination to have a full understanding of any project before commencing — which is why we deeply appreciate the detailedness of your project description. Your two-sided transport marketplace has been very precisely delineated; therefore, we can provide you with an accurate fixed-price quote against your defined feature list once shortlisted for the project.

@TechWagger2026

As your search for a full-stack developer who has extensive experience in building two-sided marketplaces comes to a close, allow me to share my track record of success. With over 14 years of experience, I've successfully developed and deployed more than 400 projects, many of which focused on intricate payment, holding, and refund functionalities similar to your transport marketplace. My range of expertise extends from frontend design using technologies like HTML5, CSS and JavaScript to backend development with Node.js, Python (Django & libraries), PHP (Core, Laravel & more) and databases including SQL, MySQL, PostgreSQL as well as some NoSQL like MongoDB. Additionally, my proficiency with third-party integrations like payment gateways (PayPal, Stripe etc) gives me the upper hand in solving multi-party payment challenges for your platform. My commitment is not just limited to outstanding technical delivery but extends to providing a service that our clients are genuinely happy with. My turnaround time is quick but without sacrificing quality and I always prioritize transparency from project kickoff to completion. Rest assured that if you entrust this project to me, the adaptability I've gained from managing diverse industries will help us surpass every challenge we may face along the way. So, let's get started on this project; let’s build something that sets new benchmarks!

@FizzaNadeemK

Hi, I have experience building complex marketplace systems where trust, transactions, and workflow automation are the core challenges—not just standard booking platforms. For your transport marketplace, I would focus first on the financial architecture: multi-party payments, conditional releases, refunds, disputes, webhooks, and complete audit trails before expanding into marketplace features. My approach would be to design a secure shared backend API powering web and mobile apps, with clear separation between users, providers, payments, payouts, and admin controls. For escrow-style flows, I would carefully handle payment states, provider balances, partial refunds, dispute freezes, and reconciliation so financial records remain accurate at every step. I understand the importance of evidence workflows too, including delivery photos, signatures, GPS updates, messaging, and admin dispute resolution tools. I’d be happy to discuss your scope document after NDA and share relevant marketplace architecture experience before defining fixed milestones and delivery phases. Best Regards, Fizza Nadeem K

@mubeenm5026

With the expansive skillset held by my team at Web Crest, I am confident we can not only meet but exceed your expectations for your transport marketplace project. We have a strong track record of delivering scalable, secure, and high-performing web and mobile applications, which makes us an ideal fit for an intricate project of this nature. Our expertise in full-stack development - particularly with APIs and their integration - is aligned with your project's core requirements, such as payment gateways, maps/geocoding, push notifications, SMS, email, cloud storage & government verification lookups. This proficiency extends to webhook handling, background job processing and real-time updates; skills which will harmonize with the needs you've outlined. In terms of payment processing and refund systems - our experience in building multiple platforms that hold funds between parties will provide significant value to this project. Since your platform operates as an escrow system with multiple parties involved (payer, payee, platform) and requires nuanced handling of payments (calculating commission deductions & conditional releases), our valuable experience in multi-party payments coupled with thorough financial data and transaction management grants us the necessary abilities to handle such crucial financial workflows optimally.

@melopgabriel

Hi, this is a complex two-sided transport marketplace with escrow-style payments, disputes, verified providers, and live job tracking across web and mobile. I’ve built backend and frontend systems for transactional products where money, status changes, and audit trails all had to stay in sync. My focus would be a clean API, relational data model, and reliable workflows for bidding, delivery confirmation, refunds, payouts, and dispute handling. I’d structure the platform around clear financial states, webhook-driven payment events, background jobs, and admin tools that make every release or refund traceable. For the mobile app and responsive web, I’d keep the experience fast and consistent while integrating maps, messaging, notifications, and document verification. If you’re looking for someone who can handle both the product complexity and the operational details, I’d be glad to discuss the scope. Best regards, Gabriel

@mayr81

You’re building a two-sided transport marketplace where escrow-like payments, conditional releases, and evidence-based disputes are core, not an add-on. I can deliver the shared backend/API, responsive web, and cross-platform iOS/Android to support: (1) multi-party funds holds with commission deducted on release, (2) full/partial refund and partial release flows that preserve auditability, (3) payout reversals/failed payouts/chargebacks handling, and (4) tax invoicing across payer, provider, and platform. For disputes, I’ll implement a structured workflow that freezes funds mid-transaction, captures pickup/delivery evidence (photos + condition records + proof of delivery + digital signature), and supports admin outcomes (full/partial release or refund) with immutable audit trails tied to every financial decision. On the marketplace side: provider onboarding + verification/expiry, category-specific job requirements, competitive bidding + provider selection, route/date discovery, live GPS tracking, messaging with contact blocking, ratings/reviews, and a full admin console spanning users, jobs, payments, payouts, disputes, and reporting. I’ll also wire real-time updates via webhooks + background jobs, and ship with CI/CD, monitoring, and security hardening.

@KasjanovaEste

Hi, Evgenia here from Mexico https://www.freelancer.com/u/KasjanovaEste , this is my profile and you can check my previous projects I read your brief, the escrow flow with multi‑party refunds and the live GPS tracking really stand out as complex challenges Plan is to use a Node.js/Express backend with PostgreSQL for transactional records, Stripe Connect for escrow and payouts, and React Native for iOS and Android sharing code base, Docker for deployment and CI/CD pipelines for smooth updates I have built a marketplace that holds funds between buyer and seller using Stripe Connect, I was the lead backend engineer and integrated webhooks for release and dispute handling Questions for better understanding: 1 How do you prefer handling tax invoicing across the three parties, is there a specific tax service you already use 2 Which map provider do you plan to use for routing and live tracking, so I can design the API integration accordingly Happy to plan the best way with you Thanks!