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We’re developing a DEX web app — it’s about 70% complete. The core frontend and backend are already implemented. Right now, we’re focusing on smart contract integration, trading logic, and user experience. We’re looking for an experienced Web3 developer who can help us enhance and complete the platform — ideally someone who can lead the technical side going forward. What we need now is a Web3 expert to take full ownership of the blockchain and integration part — from smart contracts to deployment.
N° de projet : 39921383
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101 freelances proposent en moyenne $4 519 USD pour ce travail

Hello, I am excited about the opportunity to work on your DEX web app! With its current 70% completion, I understand the importance of smart contract integration, trading logic, and enhancing user experience. As an experienced Web3 developer, I specialize in the required skills including Smart Contracts, Solidity, and Web3.js. I am confident in taking full ownership of the blockchain side, ensuring a seamless integration from smart contract development to deployment. Additionally, I’m eager to collaborate closely with your team to not only complete the platform but also set a strong foundation for its future growth. What are the specific features or improvements you envision for the user experience of the DEX web app? Thanks, Muhammad Awais
$5 000 USD en 12 jours
8,9
8,9

With over a decade of experience in web and mobile development, especially in the realm of Web3 projects, I understand the importance of finding a skilled developer who can take your DEX web app to the next level. You're looking for someone who can seamlessly integrate smart contracts, enhance trading logic, and elevate the user experience. In my extensive career, I have successfully worked on various Web3 projects, including smart contract integration and blockchain development. My expertise in ERC-20 smart contracts, P2E games, and Metaverse development align perfectly with your project requirements. I have a proven track record of delivering high-quality solutions in the blockchain space and can take full ownership of the technical side of your platform. If you're looking for a reliable and experienced Web3 expert to lead your project to success, I'm here to help. Let's discuss how we can work together to complete and enhance your DEX web app. Contact me to get started.
$4 000 USD en 45 jours
8,0
8,0

As a seasoned full-stack developer with expertise in Blockchain and Ethereum, I am thrilled to leverage my skills for your DEX web app project. With an impressive repertoire of successful Android and iOS apps development, my stringent focus on impeccable user experience aligns perfectly with your requirements. Indeed, I've designed and created various crypto-trading apps, further attesting to my relevant qualifications to lead the technical side of your project. I have an unwavering commitment to producing exceptional code quality, ensuring security, scalability, and seamless smart contract integration for your platform. My proficiency in JavaScript and Solidity will equip me in accurately adopting and optimizing any existing infrastructure you have. With due diligence fueling my work ethic, I will take complete ownership from smart contracts to deployment; leaving no stone unturned while delivering high-impact functionalities. You need a dependable professional who understands both the micro and macro aspects of Blockchain technologies; combining that with nuanced UX understanding is what sets me apart. My collaborative nature ensures smooth communication throughout the project lifecycle - vital for enhancing and completing a complex system like yours. Let's work together towards creating this powerful Web3 application that not only meets but surpasses your vision!
$5 000 USD en 70 jours
7,9
7,9

Hello, I will take ownership of your DEX project’s blockchain and Web3 integration, completing smart contract logic, on-chain trading functionality, and seamless frontend backend connectivity. I’ll review the existing architecture, optimize contract performance, and handle deployment, ensuring secure transactions, accurate price calculations, and a clean user experience throughout the trading flow. I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/kamran2012 Thanks and Best regards, Kamran.
$3 000 USD en 12 jours
6,8
6,8

Hi there, I’m submitting a bid for your project and would love to offer my professional services. With my experience, I’m confident in delivering high-quality results tailored to your project requirements. Feel free to message me to discuss the full scope and budget. View my Freelancer portfolio and client reviews: https://www.freelancer.com/u/Feriver Looking forward to connecting with you. Best regards, Asif Nawaz
$5 000 USD en 5 jours
6,3
6,3

Drawing upon my extensive 8+ years of experience in Web/App Development and Designing, I am adept at taking ownership of complex projects and delivering them successfully within the specified timeline. My profound understanding of JavaScript, Full Stack Development, and Web Development combined with my deep knowledge of API integration ensures seamless implementation of smart contracts, trading logic, and exceptional user experience. In addition to my technical skills, I also bring a strong sense of determination and unwavering commitment to the projects I undertake. I believe in fostering long-lasting client relationships through offering high-quality work that goes beyond just ticking the boxes - an approach that aligns well with your needs for a leader in the technical side. Notably, my expertise extends beyond just blockchain integration; I have also implemented various APIs like Shipstation, Quickbook, Salesforce etc. This holistic proficiency makes me agile and adaptable - two traits vital for full-stack Web3 involvement that spans beyond just smart contract integration. Let me employ these skills for your DEX web app development & help you reach the next level!
$4 000 USD en 25 jours
6,4
6,4

HI, I’ll take ownership of the blockchain layer and smart-contract integration for your DEX, finishing contract development, security hardening, and deployment so the platform is production-ready. I’ll audit and refine existing contracts (or author missing pieces) — AMM/router, liquidity pools, staking/fee logic, and token contracts — focusing on gas optimization, reentrancy/overflow protection, and clear upgradeability patterns. I’ll integrate contracts with your backend and frontend (web3 providers, wallets, signed transactions), build robust test suites (unit, fuzz, and mainnet-fork scenarios), and run deployment pipelines with safe key management and multisig release flows. Post-deploy I’ll add monitoring, on-chain telemetry, and a remediation plan for incidents, and coordinate third-party audits where appropriate. Let's discuss further. Thanks
$4 000 USD en 7 jours
6,0
6,0

Hi Steve, I’ve developed multiple Web3 products, including a decentralized NFT marketplace and a multi-chain wallet, where I integrated smart contracts with front-end frameworks like React and Vue. I also have extensive experience with CI/CD pipelines and server management, ensuring that the entire product lifecycle is handled efficiently. As a full-stack developer with 15 years of experience, I can contribute to both the front-end and back-end aspects of your project. I’m well-versed in modern JavaScript frameworks such as React, Vue, Nuxt, and Next, and I’ve worked with back-end technologies like Node.js, PHP, and Python. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. Best, Adil
$5 000 USD en 21 jours
5,8
5,8

As someone steeped in the worlds of blockchain technology and full-stack development, I am thrilled to offer my services as a Web3 developer to manage and amplify your incomplete DEX web app project. I bring to the table extensive knowledge about smart contract integration, user experience design, and trading logic - precisely what you're seeking at this stage! Having worked on numerous HTML, CSS, JavaScript and Bootstrap projects in the past, I possess the technical expertise to deliver high-quality code that ensures security and performance. One of the most valuable qualities my clients appreciate is my dedication towards being a long-term partner. I don't simply end at completion; rather, I provide consistent support and maintenance even post-project delivery. With me working on your platform, you can be assured of robustness, scalability as well as an appealing UI/UX which encourages user engagement. My deep understanding and experience with blockchain technologies also allow me to tackle any deployment complexities head-on. Choosing me means opting for a proficient professional who genuinely values client relationships and always goes the extra mile. Let's connect now to discuss how we can efficiently integrate the remaining aspects of your DEX web app together and deliver a fully functional platform that exceeds expectations.
$7 000 USD en 7 jours
5,2
5,2

Nice to meet you stever85, My name is Anthony Muñoz, I express my interest in working on your project after carefully reading the requirements and concluding that they match my area of knowledge and skills. I am currently the lead engineer for the IT agency DSPro and I have more than 10 years of experience in the field. I have successfully completed a large number of similar jobs and I consider your project to be a challenge in which I would like to work and be able to make it a reality. Please feel free to contact me, it will be my pleasure to help you. I greatly appreciate the time provided and I remain attentive to any questions or concerns. Greetings
$7 898 USD en 7 jours
5,7
5,7

As an accomplished techpreneur with over a decade in the space, I understand what it takes to get the job done right. I have successfully developed solutions for over 50 businesses across various industries, streamlining their operations and driving growth. With a strong command of technologies vital to your project like Blockchain, Full Stack Development, JavaScript, and Smart Contracts, I am confident in my ability to provide the necessary guidance and expertise needed to complete your platform. Additionally, my penchant for well-structured documentation will act as an invaluable asset during your ongoing development while optimizing traceability and troubleshooting. It would be an honor to work with you on enhancing and completing your DEX web app. My dedication to unlocking innovative solutions combined with our shared vision for a thriving digital marketplace makes me the ideal candidate bieten powerful ROI-driving advantages for our esteemed clients. So let's dive into building the future together, connecting me today!
$4 500 USD en 7 jours
5,9
5,9

Hello, I'm a seasoned Web3 developer with a proven track record in smart contract development and DEX integration. I can take full ownership of your blockchain and integration needs, ensuring a seamless user experience. With my expertise, I'll enhance your trading logic, optimize smart contracts, and deploy them efficiently. I'm committed to delivering high-quality work within your budget and timeline. Thanks.
$4 000 USD en 7 jours
4,6
4,6

⚠️ If you’re not happy, you don’t pay ⚠️ I understand that your DEX web app project is at a crucial stage, with a focus on smart contract integration, trading logic, and enhancing user experience. As an experienced Web3 developer, I have a proven track record of successfully leading projects to completion while ensuring seamless blockchain integration. My expertise lies in taking full ownership of the technical aspects, from smart contracts to deployment, and I am dedicated to delivering high-quality, reliable, and fully functional solutions that align with your project goals. I’d love to chat more about how I can contribute to bringing your vision to life. Best regards, Piyush Gupta
$3 000 USD en 60 jours
4,4
4,4

Hello Steve, I am Vishal Maharaj, with 20 years of experience in JavaScript, Web Development, Full Stack Development, and Web3.js. I have carefully reviewed your project requirements. To enhance and complete your DEX web app, I propose taking full ownership of the blockchain and integration aspects. This includes refining smart contract integration, implementing trading logic, and enhancing user experience. I will ensure seamless deployment and lead the technical aspects moving forward. Let's discuss how I can bring value to your project. Please initiate the chat. Cheers, Vishal Maharaj
$5 000 USD en 30 jours
5,2
5,2

Hi, I can do this job professionally. Let's discuss more. Sir/Madam, I am sure that I can do the project very well. I have been working as a worker for over 5 years. I have worked on several similar projects and can deliver quality notes to tight deadlines. You can see an example of one of those projects in my portfolio here: https://www.freelancer.com/u/mofajjelbd I have completed many projects. I'm interested to hear more about the project. If you award me the project, I'd be thrilled to discuss this further and get started for you as soon as possible. Thanks! #Mofajjel#
$3 000 USD en 1 jour
3,9
3,9

Hello, I HAVE ALREADY DONE SIMILAR WORK IN PAST PLEASE OPEN THE CHAT WINDOW SO I CAN SHARE WITH YOU. I have gone through your project description for the DEX web app and understand that your main priority is completing the remaining 30 percent of the platform, focusing on smart contract integration, trading logic, and smooth user interaction. You are seeking a Web3 expert who can take full ownership of blockchain functionalities and ensure the system is stable, secure, and fully operational for deployment. I am confident that I can help you accomplish this with precision and reliability. My background in decentralized application development, smart contract deployment, and full-stack architecture positions me perfectly for this task. I will ensure seamless integration between your frontend, backend, and blockchain layers, maintaining scalability, security, and a responsive user experience throughout. 1. Smart Contract Integration 2. Trading Logic Optimization 3. Wallet Connectivity 4. Transaction Validation 5. Deployment Support Let us schedule a quick chat to align your vision and next steps. Regards, Prasham Jain
$3 030 USD en 23 jours
3,6
3,6

As you're aware, building a DEX web app can be quite challenging, but with my extensive experience in Web3 development, I believe I'm the perfect candidate to take on this task. Having played a substantial role in projects involving Blockchain, Ethereum, and Smart Contracts, I understand the core needs and challenges your project presents. What differentiates me from other candidates is my strong competency in algorithmic trading strategies and risk management systems which align perfectly with the trading logic aspect of your project. My skills extend even further to web development and design using modern technologies like React.js, Node.js and more which will enhance the user experience across your platform. Moreover, I uphold timely communication and high-quality outputs as core pillars of my work ethic which will help augment team collaboration and ensure your project is completed efficiently as well as effectively. Together with my strengths in documentation and user guides, We can not just finish this 70% slack but deliver an exceptional web-ready app that will solidify our reputation in the ever-growing Web3 space.
$4 000 USD en 20 jours
3,8
3,8

Hi There I am the someone who can lead the technical side and going forward. I have 13 years of experience in this sphere and I am perfectly fit in this role where I can showcase my skills sets as a Web3 developer. Can we connect and communicate? Thanks,
$4 000 USD en 60 jours
2,5
2,5

Hi there, I am Martin. Your project sounds very interesting and challenging to me. I have a long experience as a web and app developer, data management expert, university professor, and trainer too. Also experienced in Excel, VBA, SQL, React, JavaScript, HTML, CSS, PostgreSQL, MySQL, Power BI, SSIS, MSSQL, and SSAS. I am also familiar with working with Web3 development, smart contract integration, and blockchain based platforms. I have completed various projects on time and 100% accurately. You can also see my portfolio in my profile, and of course we can talk about the details. Let’s connect and discuss more details. BR,
$4 000 USD en 6 jours
1,9
1,9

Greetings! I’m a top-rated freelancer with 15+ years of experience and a portfolio of 700+ satisfied clients. I specialize in delivering high-quality, professional web3 building services tailored to your unique needs. Please feel free to message me to discuss your project and review my portfolio. I’d love to help bring your ideas to life! Looking forward to collaborating with you! Best regards, Revival
$3 000 USD en 7 jours
1,3
1,3

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