Mobile & Blockchain Full-Stack Developer

@divumanocha

Hello, I came across your project and found it truly interesting. With over eight years of hands-on experience in this field, I have successfully delivered high-quality solutions to clients worldwide. My dedication to excellence is reflected in the 180+ positive reviews from satisfied clients. I’d love to bring this expertise to your project and ensure outstanding results. However, I do have a few important points I’d like to clarify to align perfectly with your vision. Let’s connect via chat, where I can also share relevant examples of my past work. I'm looking forward to hearing back from you! Best Regards, Divu.

@durgesh8527

As a seasoned 10-year veteran in web and mobile development, I am confident that I possess all the necessary skills to take on your multifaceted project. My primary strengths in Flutter and Laravel are particularly suited for your requirement for a hybrid app utilizing Django frameworks. I am also well-versed in all other technical aspects including working with various APIs, databases like MySQL and Firestore, Google Maps, geolocation filters and Blockchain integration through Node.js and Ethers.js. What sets me apart is not only my expertise but my commitment to quality and meeting strict deadlines. In addition, I have an unwavering focus on security and performance, an essential skillset for your fintech-based project handling sensitive data including key storage and fraud prevention. Having experience in Wallets, Fintech, and Cashback Apps makes me a perfect candidate to execute your vision with utmost precision.

@jayprakashyadav

Hello, I am a PHP Developer with 15+ years of experience, specializing in building dynamic, secure, and high-performance websites and applications. I have worked on simple to complex websites, e-commerce stores, membership portals, and custom PHP-based solutions, always ensuring top-quality results for my clients. My expertise includes custom PHP development, Laravel/CodeIgniter frameworks, API integration, database management (MySQL), and performance optimization. Recently, I also worked on OpenAI API integration for auto-generated content, images, and social sharing, showing my ability to adopt the latest technologies. If you are looking for a dedicated PHP expert who guarantees quality, innovation, and timely delivery, I’d be happy to bring your project to life.

@deniskirilov0212

Hi, buddy, I have strong experience building full-stack fintech and blockchain applications and can adapt your existing app into a hybrid Flutter wallet with QR payments, cashback, multi-level referrals, ranking, and gamification. I’ve previously integrated Polygon blockchain (gasless transactions via EIP-2771) with Node.js/Ethers.js, built secure APIs in Laravel, and published apps on Play Store & App Store. My focus is on clean code, security, and smooth user experience so your solution scales reliably. I can start right away and deliver a production-ready wallet and admin panel meeting all your goals. Best regard. Denis.

@Engumer480

Thank you for the opportunity to submit our proposal. Our team at Resiliencesoft is genuinely excited by the prospect of evolving your existing Bidding app; with over a decade of collective experience in React Native, Flutter, and Node.js, we are perfectly equipped to enhance your platform with robust and scalable solutions. We pride ourselves on a strong track record of delivering high-quality mobile applications and possess deep expertise in integrating blockchain functionalities to provide the enhanced security and transparency your project demands. Our comprehensive approach ensures seamless management of the entire stack, from MongoDB and Firebase to streamlined DevOps processes. We are confident in our ability to not only meet but exceed your expectations for this project and are eager to discuss how we can bring our proven expertise to your team. Best regards,

@jitendras097

Hello, I HAVE HANDS-ON EXPERIENCE WITH PROJECT HAVING SIMILAR FEATURES I have over 9+ years of proven expertise in delivering complex projects end-to-end, I have carefully reviewed your requirements and can confidently execute this task with precision. The project aims to adapt and evolve your financial services app into a full-featured Wallet with cashback, loyalty, and Polygon-based gasless transactions, ensuring efficiency, scalability, and user-centric design. Core features will include balance management, QR payments, transaction history, symbolic cashback, multi-level referral system, discovery map, gamification, secure key storage, fraud prevention, and a robust Laravel-based admin dashboard. My approach will be to build a clean architecture with secure APIs, smooth Flutter/Node.js/Polygon integration, Firebase OTP/push support, and automated deployments for operational ease. -->>WHAT I AM OFFERING-- ->>100% DELIVERY OF WORK ->>HIGH-QUALITY, BUG-FREE CODE ->>DAILY PROGRESS UPDATES WITH NO COMMUNICATION DELAYS ->>2 YEAR POST-DEVELOPMENT SUPPORT TO ENSURE YOUR APP RUNS SMOOTHLY, FREE OF COST Let’s discuss in chat as I have some queries to ask regarding the project to proceed further. Jitendra

@johnallenvillan1

Olá, equipe determinada! Como Desenvolvedor Full-Stack experiente, estou pronto para transformar a base do seu App em uma Wallet inovadora na blockchain Polygon. Vamos adaptar o app para Flutter, implementar recursos essenciais como pagamentos via QR e sistema de cashback, e integrar com a blockchain garantindo segurança e performance. Com expertise em PHP, Laravel, Blockchain, Android e mais, entregarei um projeto de excelência. Vamos juntos criar algo incrível? Obrigado, John Allen

@DigitaSyndicate

⚠️!!NB!! ⚠️ YOU NAME THE PRICE — I’LL DOUBLE THE IMPACT I see the potential in elevating your App to a seamless Wallet experience on Polygon's blockchain. No reviews? That’s your edge. While others coast, I’m hungrier. My Full-Stack expertise in Flutter, Laravel, and blockchain integration ensures a secure, user-friendly app. With experience in gasless transactions, Firebase, and automated deployments, I guarantee a swift, top-notch delivery. Your success is my reputation. I’d love to chat more about your project! Regards, Casper

@juanjosec63

Olá, Sou desenvolvedor full-stack com experiência em fintechs, apps de cashback e integração blockchain, e posso adaptar sua base existente para criar uma Wallet completa com suporte a cashback e fidelização na Polygon (gasless transactions). Desenvolvimento de wallets e apps financeiros com Flutter + Laravel + Node.js. Integração de gasless transactions em Polygon e otimização de performance para dispositivos de entrada. Aplicação de boas práticas de segurança, LGPD e UX para fintechs. Posso entregar um sistema escalável, seguro e bem documentado (código-fonte + documentação simplificada), pronto para operação e manutenção. — Juan

@GameOfWords

With over 5 years of full-stack development experience building mobile and web applications, I've worked extensively with Flutter for cross-platform apps, Laravel for backend systems, and blockchain integrations using Node.js and Web3 technologies. I can adapt your existing financial services app structure into a comprehensive wallet and cashback platform, implementing the dual user/merchant profiles in Flutter, QR payment systems, multi-level referral programs, and gamification features you've outlined. My experience with Firebase integration, Google Maps API, and secure payment systems will ensure the app meets fintech security standards while the blockchain integration with Polygon will enable gasless transactions through meta-transactions using Ethers.js. Do you have specific requirements for the existing user base migration to the new wallet system, and what are your preferred transaction limits or security thresholds for the cashback and payment features?

@atifuiux

Subject: Full-Stack Developer to Deliver Your Project [Mobile & Blockchain Full-Stack Developer] — Fast, Secure & SEO-Optimized Results Hi there, Thank you for outlining your project! I’d love the opportunity to bring it to life with precision, performance, and results you can count on. As a Full-Stack Web Developer with 7+ years of hands-on experience, I specialize in building modern, scalable, and conversion-optimized ecommerce websites across WordPress, WooCommerce, Shopify, Wix, Webflow, Laravel, PHP, React.js, Vue.js, and more. Here's how I’ll add value to your project: ✦ Fast, secure, and SEO-friendly development ✦ Clean, maintainable code built for long-term success ✦ Fully responsive design with modern UI/UX ✦ Hosting & domain setup: DNS, SSL, performance tuning ✦ Seamless API integrations, bug fixing, and ongoing support ✦ Transparent communication, on-time delivery, and post-launch care With 90+ 5-star reviews and a proven track record of delivering client success, I’m confident I can exceed your expectations. Portfolio & Reviews: https://www.freelancer.com/u/atifuiux Ready to start immediately — let’s chat and get your project moving! Best regards, Atif IS Full Stack Web Developer | UI/UX Specialist | Webflow Expert

@FizzaNadeemK

Hello I can take your existing platform and complete all pending adjustments and validations as outlined. This includes fixing webhooks for Stripe and Mercado Pago, confirming Firebase push notifications, validating private room presence rules, handling premium content expiration, and final moderation tweaks. I will re-execute all critical tests in production with real keys, generate full evidence (videos, screenshots, CSV logs), and deliver a 100% PASS checklist along with updated technical documentation. I’m ready to start immediately and complete the work within the estimated 30 hours. Best Wishes Fizza Nadeem

@rasiba1

As a seasoned Full Stack Developer with expertise in Blockchain development, I bring a unique set of skills that perfectly align with your requirements. Having worked extensively on technologies like Flutter, Laravel, and Node.js, I am well-versed in creating scalable and high-performance applications while ensuring intuitive user experiences. My proficiency in integrating mobile apps with the blockchain (especially Ethereum's) can prove crucial for a secure and robust wallet application using Polygon. Moreover, my knowledge about gasless transactions (EIP-2771) can be beneficial in minimizing transaction costs. I am also experienced in utilizing Firebase for OTP login and push notifications, which can enhance security and user engagement.

@maximg10

⭐Hi, I’m ready to assist you right away!⭐ I believe I’d be a great fit for your project since I have hands-on experience building hybrid mobile apps with Flutter, integrated with blockchain solutions like Polygon for gasless transactions. I deliver high-quality code efficiently, ensuring projects stay on schedule and within budget. I have developed financial apps with multi-profile Flutter setups, secure wallets, cashback systems, and gamified user experiences. I also have solid experience integrating Laravel dashboards with Node.js/Ethers.js for blockchain operations, including meta-transactions. Your project aims to transform an existing financial app into a full-featured wallet and cashback platform. This will allow users and merchants to transact seamlessly, earn rewards, and engage through geolocated partner discovery and gamification. By adapting the backend and ensuring secure, gasless blockchain integration, we can launch a performant and safe app on both iOS and Android. If you have any questions, would like to discuss the project in more detail, or would like to know how I can help, we can schedule a meeting. Thank you. Maxim

@bohdanz5

❤️❤️⭐⭐⭐⭐⭐ Dear Client ⭐⭐⭐⭐⭐❤️❤️ I’d love to help you build or enhance your Mobile Blockchain full-stack app using Flutter, delivering both user-friendly mobile UI and robust blockchain integration. With 9+ years of experience in full-stack and blockchain development, I excel in creating rapid, reliable mobile DApps using smart contracts, wallets, and Flutter. Deliverables for your MVP: A well-designed Flutter front-end featuring clean, responsive UI—optimized for iOS and Android. Integration with blockchain via smart contracts (e.g., Ethereum or other EVM chains), including wallet connectivity (MetaMask, WalletConnect). Backend logic to manage transactions, token data, and on-chain/off-chain synchronization. Secure, maintainable code with clear documentation and any necessary deployment scripts or guides for future extension. Why choose me? Proven track record building mobile blockchain apps and DApps with Flutter and Solidity / Web3 libraries Upwork +1 . Expertise in wallet integration, decentralized stores, token handling, and cryptographic features. Friendly, transparent communication—structured milestones, fast iterations, and developer-ready handover. Let’s build an intuitive, secure mobile app that harnesses the power of blockchain and sets you up for future growth. ❤️❤️❤️❤️❤️ Best regards ❤️❤️❤️❤️❤️

@ArpuSoftech

Hello, Analisei cuidadosamente seus requisitos para a solução mobile/blockchain full-stack e posso entregar o projeto com forte foco em qualidade, segurança e execução pontual. Minha equipe e eu temos sólida experiência em Flutter/Dart para aplicativos multiperfil, Laravel para backends escaláveis ​​e Node.js/Ethers.js para integrações com a blockchain Polygon (incluindo transações sem gás – EIP-2771). Podemos trabalhar em sua estrutura existente para adaptá-la a um aplicativo híbrido de carteira + cashback, implementando todos os recursos listados — pagamentos com QR Code, cashback simbólico, sistema de indicação, gamificação para comerciantes/usuários, integração com o Google Maps e um painel de administração seguro com relatórios e configurações. Também garantimos a conformidade com a LGPD, as melhores práticas de segurança e o desempenho otimizado para todos os dispositivos. Nosso processo inclui desenvolvimento, testes, implantação na Hostinger e publicação em ambas as lojas de aplicativos. Ficaremos felizes em atender uma ligação rápida para discutir o escopo, os cronogramas e a abordagem em detalhes. Atenciosamente, Arun

@nbugarskifl123

With my extensive experience as a seasoned Full-Stack developer, specializing in multiple languages including Node.js,PHP, and Blockchain such as Ethereum & Polygon, I am confident that my skills and expertise can greatly benefit your project. My technical proficiency ranges from developing native mobile applications using Flutter to handling server-side frameworks like Laravel. What separates me from the rest is my concrete experience in gasless transactions which I believe is critical for the integration with blockchain. Moreover, my knowledge of cybersecurity practices aligns perfectly with your requirements. Having prior experience with wallets, fintech, and cash-back apps gives me a unique perspective on what's crucial for the success of these platforms. In addition to this,I also emphasize on end-to-end development lifecycle strategy to ensure smooth functioning of the software.I assure timely delivery of quality outputs along with simplified documentation for ease of operation and maintenance. I strongly believe that my skills make me an apt choice for your project!

@khalidaziz10222

Hi, how are you? I understand your project requirements and can start working immediately. Tenho experiência sólida em Flutter/Dart, Laravel, Node.js, integração com blockchain (Polygon), Firebase e Google Maps API, o que me permite adaptar a base existente para criar sua wallet com cashback, fidelização, sistema de indicação e gamificação. Além disso, garanto segurança (armazenamento de chaves, logs, prevenção de fraudes), performance e conformidade com LGPD, entregando um app funcional e pronto para publicação nas stores. Aqui está meu portfólio para referência: https://www.freelancer.com/u/khalidaziz10222. Minha entrega inclui o app Flutter (usuário + comerciante), painel Laravel ajustado, deploy em Hostinger e publicação nas stores, junto com documentação simplificada. Minha pergunta é: você prefere que o módulo de cashback seja tratado on-chain (Polygon) ou off-chain com sincronização, visando reduzir custos de transação? Regards, Khalid Aziz

@zhens2

As a Senior Full-Stack Developer, I bring a wealth of experience which aligns perfectly with the needs of your project. Over my career, I've developed numerous mobile and web applications while incorporating blockchain technology similar to what you're looking for. My extensive skills in Flutter/Dart, Laravel, Node.js have proven to be effective in all areas from design to backend development. I'm genuinely excited about the potential of your project as it combines blockchain technology with fintech services. Given my expertise in wallets, fintechs, and cashback apps along with good knowledge about CI/CD and UX/UI for financial solutions, I strongly believe I can offer invaluable insights towards creating your vision. Lastly, with regards to security concerns; rest assured that building robust end-to-end secure applications is something I pride myself on. With me, you get a developer who is not only technologically skilled but also attentive to the overall performance and experience of the application. Let's collaborate in transforming your app idea into reality!