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Looking for a strong Full-Stack Developer to take ownership of the application layer of a Web3 product built with Next.js. The frontend is already designed and partially implemented, and now needs an experienced developer to refine the codebase, replace mock data with live integrations, connect the UI to smart contracts, and build the off-chain backend systems required for production use. This role is ideal for someone who is comfortable working across the full stack — frontend, backend, database, wallet integration, and deployment — and who can turn an existing Web3 interface into a reliable, production-ready application. What You’ll Do Review, clean up, and optimize the existing frontend codebase Replace mock data with real smart contract and backend-connected data flows Implement wallet connection, wallet state handling, and transaction flows Build a hooks/data layer that abstracts contract calls and backend reads Integrate frontend flows with smart contracts and contract interfaces Design and implement a lightweight backend for off-chain features Build and manage a centralized database for non-blockchain data Implement user preferences, labels, notifications, and reminder features Set up email reminder infrastructure and supporting backend logic Handle indexing and efficient data retrieval for dashboard views Deploy and maintain the application on self-hosted infrastructure Document the stack for handover, maintenance, and future development Work closely with the smart contract developer to ensure clean integration Required Strong full-stack development experience Strong experience with [login to view URL], React, TypeScript, and Tailwind Experience building Web3 / DApp applications Experience with wallet integration and transaction handling Experience designing backend services and database structures Experience with self-hosting and general DevOps workflows Ability to work effectively with an existing codebase Ability to write clean, maintainable, well-structured code Ability to collaborate closely with a smart contract developer
Project ID: 40420147
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147 freelancers are bidding on average $21 USD/hour for this job

With a solid background in Full-Stack development, I am well-equipped to take your Web3 project to the next level. I understand the importance of refining codebases, integrating live data, and connecting UIs to smart contracts. My experience in frontend and backend development, database management, and deployment aligns perfectly with your requirements. How do you envision user preferences and notifications being implemented in the application to enhance user engagement? Regards, Yogesh Kumar
$20 USD in 34 days
8.5
8.5

Hi, Admin here. Thanks for sharing the project. This requirement matches my practical experience in AI-assisted workflow implementation. My delivery flow will be: convert your brief into a sprint-wise implementation map -> deliver high-priority flows first so you can validate early -> complete final polish, testing, and documentation. From your brief, I noted this key context: Looking for a strong Full-Stack Developer to take ownership of the application layer of a Web3 produ --- Location: Tallinn, United States Verified: Email, Phone To align perfectly, please confirm: Do you have preferred stack constraints for backend, frontend, and hosting? And one more point: Do you want audit logs and reporting included in the first release? If you’re comfortable with this approach, I can begin right away and send a concrete execution plan.
$21 USD in 7 days
7.7
7.7

Hello Dear! Greetings from Toriqul Global Solutions! We are a reliable and experienced web design & development company led by Engineer Toriqul Islam (B.Sc. in CSE, RUET), with over 10 years of proven industry experience delivering quality digital solutions. At Toriqul Global Solutions, we build modern, user-friendly, high-performance websites focused on simplicity, elegance, and functionality to boost engagement and business growth. I have some questions——— Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. AngularJS 7. React JS 8. Node.js 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .NET 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB and more skills What will you get? • Responsive design on All Devices •Reusable components •Clean code •Timely delivery tested •Clear communication We would be honored to discuss your project requirements and help bring your ideas to life. Thank you for your time and consideration. Warm Regards, Toriqul Global Solutions
$15 USD in 40 days
6.1
6.1

Hello there, we are a team of Full Stack Web developers and designers. We can do this project. Please, send me a message to discuss the work. Thanks Ashish Kumar.
$20 USD in 40 days
5.8
5.8

Hi, I am specialized in blockchain development, checkout my profile, have done plenty of web3 jobs here. Lets get in contact first.
$25 USD in 40 days
5.9
5.9

Hello, Hope everything is going well! I am an Angular Frontend Developer focused on creating modern, fast, and intuitive web interfaces. I build pixel-perfect UIs that work smoothly across all screens and devices. What I Specialize In 1. Angular apps with clean architecture 2. API-driven dynamic dashboards 3. Reusable components with full modularity 4. Authentication, guards & interceptor setup 5. Lazy loading & performance optimization 6. Cross-browser & mobile responsive UI Why Work With Me? 1. Strong grip on UI/UX best practices 2. Smooth animations and modern layouts 3. Lightweight, maintainable code 4. Clear communication + fast delivery 5. Experience with enterprise-level Angular apps Let’s Start Share your design or project idea — I’ll respond with: 1. Best solution 2. Setup plan 3. Clear timeline Looking forward to collaborating!
$15 USD in 40 days
5.6
5.6

Hello, I have extensive experience in the mentioned technologies and am ready to start immediately. Let’s connect via chat to discuss the project requirements further. Thank you, Jignesh
$16 USD in 40 days
5.3
5.3

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom
$20 USD in 40 days
5.4
5.4

Greetings I can surely help you for Web3 DApp Full-Stack Development I am in the IT industry since more than a decade and serve so many clients in building and rebuilding websites, software, and applications I have strong hands-on different cms like webflow, Wordpress, shopify, squarespace, wix and on different programming languages like PHP, Laravel, React, Node.js, HTML, CSS, And I did the migration from HTML to click funnels. I have made so many websites (E-commerce, WordPress, Classified admin, WooCommerce, etc.), bots, softwares, and Mobile applications (Android, IOS, and Huawei Play store) in my entire career. I have strong hands on both the front end and back end. Currently, I am part of the team who are dealing with miscellaneous tasks in dubizzle and Mzad Qatar including design and layouts and they both have more than 1 million users. I believe that you are looking for a web designer and for sure you will get your end desire result with plagiarism-free work and with better quality as I am assuring you this. Package deals can also be done for long-term collaboration as per the client's requirement. Kindly do come on chat so that we can discuss project details further more.
$15 USD in 40 days
3.2
3.2

Hi, I am a Senior Full-Stack Developer at ARSS Technologies with a proven track record of building secure, high-performance DApps. I specialize in bridging modern frameworks with blockchain ecosystems. My Core Strengths: Blockchain Integration: Expert in wallet connectivity, smart contracts, and decentralized APIs. Full-Stack Architecture: Deep experience in Node.js and scalable UI frameworks. Technical Portfolio: Successfully delivered platforms like Bebetta and Distacart. I am ready to start immediately and ensure a seamless launch for your project. Best, Shailender
$15 USD in 40 days
1.6
1.6

I can take ownership of the full application layer of your Web3 product and deliver a robust, production-ready DApp. My focus is on building secure, scalable front-ends and back-ends that integrate cleanly with smart contracts and on-chain data. I’ve worked on Web3 projects involving wallet integrations (MetaMask, WalletConnect), transaction flows, role-based dashboards, and performant APIs that sit between the UI and blockchain. This includes optimizing UX around gas fees, confirmations, and error handling to make the product feel seamless for end users. My approach would be to clarify your core user journeys, design a clean architecture, implement the DApp front-end, API/middleware, and contract interactions, then harden everything with tests and monitoring before launch. I would love to chat more about your project! Regards
$20 USD in 7 days
0.0
0.0

I already see a clean way to execute this. I specialize in full-stack Web3 development, owning both the application layer and its integration with smart contracts. I’ve shipped dApps end-to-end using modern front-end stacks (React/Next) tied into EVM-based contracts, wallets, and APIs, so taking full responsibility for your app layer is exactly in my lane. You’re looking for someone who doesn’t just “code screens,” but actually owns the product experience: clean UX around wallet flows, reliable interactions with contracts, and a production-ready dApp that users can trust and understand. Before I outline a concrete approach, can you share whether the smart contracts are already deployed and audited, or if you’d like help shaping that side in parallel with the app layer? Lets chat more about your project, worst case you walk away with a free strategy session Regards
$20 USD in 7 days
0.0
0.0

Hello, I recently completed a similar project two months ago and am confident I can successfully lead this Web3 DApp Full-Stack Development project. With 4+ years of experience in PHP, JavaScript, Bootstrap, Full Stack Development, and Frontend Development, I am well-equipped to handle the requirements of this project. I understand your needs and will provide a professional solution according to the project description. Let's discuss this further in chat. Best regards
$17 USD in 40 days
0.0
0.0

Tallinn, United States
Member since May 5, 2026
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