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Rating is 4.7 out of 5.
4.7/5
based on 1,315 client reviews
  • $40 hourly
    • 5.0/5
    • (20 jobs)
    Hi there! If you are visiting my page, then you are definitely in the right place for a high-paced software developer, and tech lead to deliver your project. I am an experienced Solidity, Web3, and Python Developer with an overall experience of 3+ years. I specialize in writing smart contracts, Python Scripting, and Full-Stack Development. To date, I have delivered over multiple large-scale projects to my clients in and outside of Upwork. Some of the blockchain projects I have worked on have made over $300K+ in total revenue during launch. You can check my portfolio here: manishgotame.com.np In the field of Blockchain, I have experience in: - Chains: Ethereum, Binance Smart chain, Solana, Polygon, etc. - Writing gas-efficient smart contracts in Solidity. - ERC721 / ERC20 / ERC1155 token standard contract. - NFTs, Staking, DAO, AMM, etc. - Proper Contract testing using Hardhat. - Web3 Integration with 15+ wallet connections in React.js, functional on both mobile and web. Python / Django: - Full-stack development using Django in the backend, React in the frontend. - Have worked on multiple large-scale web applications in the field of data extraction, and scraping. - I have built custom OCR libraries and data extraction tools. - AI models using Keras, and Pytorch integration within your web application. My strong sides are responsibility, attention to clients' needs, and a strong will to achieve the final results of team efforts. It's enough comfortable for me to work both in a team and in stand-alone development. Send me a message and let's start hammering out the details of your project.
    Featured Skill Solidity
    PDF Conversion
    Django
    Scripting
    web3.js
    Smart Contract
    React
    HTML5
    Blockchain
    Ethereum
    CSS
    jQuery
    JavaScript
    Python
    Data Extraction
  • $50 hourly
    • 5.0/5
    • (22 jobs)
    Web blockchain development. Over the past 6 years, I have developed and delivered numerous web applications using JavaScript, Vue.js, NodeJS, etc. I always do my best to provide my clients with clean, organized code, responsive and perfect working applications.
    Featured Skill Solidity
    API
    Smart Contract
    Ethereum
    Blockchain Development
    web3.js
    AngularJS
    Vue.js
    Google Chrome Extension
    Web Application
    MongoDB
    MySQL
    Node.js
  • $60 hourly
    • 5.0/5
    • (12 jobs)
    I have 4+ years of experience working with Blockchain, Artificial Intelligence and DevOps related technology. I have a degree in Computer Science and have prior experience dealing with research level mathematics. If you have the time feel free to checkout my GitHub: github.com/thinktanktom
    Featured Skill Solidity
    Front-End Development
    DApps
    Cryptocurrency
    Docker
    Node.js
    Ethereum
    Rust
    API
  • $250 hourly
    • 5.0/5
    • (51 jobs)
    Hi! I am a senior full-stack software engineer, researcher, and blockchain developer, with 6+ years of experience in professional development and freelancingโ€”primary expertise in Solidity, Python, C#, .NET, Typescript. I have a BSc in Computer Science, an MSc in Financial Computing, and I'm currently pursuing a Ph.D. in Financial Machine Learning. I am a Teaching Assistant at University Politehnica Bucharest, teaching Intro to C Programming, Logic Circuit Design, Intro to Linux / Operating Systems. Skills: - frontend development - Javascript/Typescript, PHP, HTML5, CSS3, LESS/SASS, React, React Redux, Angular, Vue.js, Knockout.js, Bootstrap, Bulma - backend development - Node.js, express, C#/.NET, Java Spring Boot - database engines: MySQL, MSSQL, Postgres, Neo4j - software programming - Python, Java, C/C++, C# - blockchain - Solidity (Ethereum), contract auditing, blockchain research, smart contract development - machine learning - Python, PyTorch, Tensorflow - web botting & data scraping - C#, MS Interop, Python bots, Phantom.js, Selenium - automated testing & CI/CD: Jenkins, Mocha, Jest, Chai, Python unit testing, Cucumber, SpecFlow - IaaS: Azure, AWS, Terraform - workflow - extreme programming (XP), agile development, test-driven development
    Featured Skill Solidity
    Ethereum
    Smart Contract
    DApps
    React
    Automated Testing
    Web Design
    C#
    Blockchain
    JavaScript
    Machine Learning
    Python
  • $110 hourly
    • 4.7/5
    • (28 jobs)
    Rapid&Efficient software development. I love what I do, and I am lucky enough that people pay me for it. I am a super enthusiastic person when it comes to software integration with a real-life task. Explain the challenge well enough, and I will give you one of the best solutions out there. Key Areas of Expertise: โ€ข Custom Website and dApp Development: Crafting unique digital experiences from the ground up, without relying on templates. Every project is an original creation, tailored to your specific needs. โ€ข Server Construction & Deployment Expertise: I build robust servers from basic components, demonstrating my deep understanding of hardware and software integration. Whether it's deploying on popular cloud platforms or custom solutions, I adapt to your preferred environment. โ€ข Data Scraping & Neural Network Feeding: I find joy in extracting data from the web, often for the purpose of training neural networks. While I do this for fun, my professional expertise ensures high-quality, efficient data gathering. โ€ข Blockchain Simplified: Having explained blockchain concepts on national TV to audiences as varied as a 50-year-old and a 6-year-old, I possess a unique ability to demystify complex technologies. Writing and deploying smart contracts come as naturally to me as speaking my mother tongue. I'm here to bring your vision to life with dedication and expertise. Let's create something amazing together! I'm happy to be of service (:
    Featured Skill Solidity
    Blockchain Development
    Blockchain Architecture
    Rust
    C
    Database
    DevOps
    DApps
    Website Prototyping
    Cryptocurrency
    Smart Contract
    Bot Development
    Data Scraping
    Python
    JavaScript
  • $50 hourly
    • 5.0/5
    • (18 jobs)
    Blockchain developer since 2020. - Smart Contracts writing and testing. - Descentralized Applications. - NFTs and Marketplaces. - Tokens. - Web3 integration. - APIs - Solidity - Web3, Ethers - Hardhat, Truffle, - JavaScript - React - NodeJs - Ethereum and EVM Blockchains. - ERC721, ERC1155, ERC20 Blockchain is evolving really fast, so I'm working, learning and improving everyday to stay up to date. If I don't know the answer to a problem, I will dive into the documentation and come back with a solution. Let's discuss your project and start working together.
    Featured Skill Solidity
    Blockchain Development
    Blockchain Architecture
    React
    Twitter/X API
    API Integration
    Node.js
    TypeScript
    PostgreSQL
    Solana
    Discord Bot Development
    AI Agent Development
    AI Bot
    Next.js
    Blockchain
    web3.js
    Smart Contract
    DApps
  • $185 hourly
    • 5.0/5
    • (44 jobs)
    I am a California based NFT smart contract developer/web3-DApp developer/NFT consultant/advisor and have successfully launched over 10 NFT projects for my clients. I have provided consultation for over 20 NFT clients too. I have also worked on my own 10k generative ERC721 NFT art project. I was involved in every aspect of the NFT project from start to finish including contract development, twitter/discord marketing, generating the 10k art illustration, uploading images to IPFS, website design, integrating web3 for website minting, etc. I look forward to hearing from you and learning more about your project! Eugene
    Featured Skill Solidity
    Blockchain
    Ethereum
    Front-End Development
    Blockchain Development
    Website
    Web Design
    Cryptocurrency
    DApps
    Smart Contract
    web3.js
    Web Development
    JavaScript
    React
  • $75 hourly
    • 4.8/5
    • (501 jobs)
    Get 2x more website traffic ๐Ÿ“ˆ, get investors to invest in your proof-of-concept mobile app or simply talk with me about your idea and get free advice on how to take it to the next level ๐Ÿš€ ๐Ÿ€ Clients I have worked with have been able to: โ— Generate a $200k monthly revenue through their ecommerce stores โ— Raise a minimum of $500k in investment through their MVP apps โ— Build a sold online presence for their B2B offerings and 5x their revenues ๐Ÿ€ Itโ€™s really hard for me for help everybody, but we may be a great fit if you are thinking: โ— Our website has a lot of traffic and we wish to have a smooth migration โ— We are looking for a great launch of our online store and cannot afford any hiccups โ— I want someone to guide me on the best possible website solution โ— I have a great idea for a mobile app, need someone to execute it โ— Customer experience is very important to us. โ— The re-design needs to be engaging and should result in increased sales โ— We are looking for a web-app for internal operations โ— We are looking to copy existing web-applications but have our own twist to it โ— We are a start-up looking for an MVP mobile app to be built to generate more investment ๐Ÿ€ Working with me, you will: โ˜… Eliminate the headache of website development - I handle the full design and development process, from initial concept to launch, ensuring a seamless experience. โ˜… Showcase your business with a professional and user-friendly website that captures your brandโ€™s essence and engages your audience. โ˜… Optimize your site for search engines and mobile devices, ensuring maximum visibility and accessibility. โ˜… Receive a high-performing, visually stunning website that drives conversions and supports your business goals. โ˜… Benefit from elite web strategies and design principles used by top companies to enhance user experience and customer engagement. โ˜… Collaborate with an experienced full-stack developer who understands the nuances of various platforms like WordPress, Shopify, WebFlow, Wix, SquareSpace, BigCommerce, Kajabi, and HubSpot. These also include all WordPress builders like Elementor, Divi, Genesis, Bever Builder etc. โ˜… Save money and time by leveraging my expertise for ongoing maintenance and updates, ensuring your website remains cutting-edge. ๐Ÿ€ Not every business is my client, though. Some signs we might not be a good fit include: โœ— The company is struggling to pay for essential expenses - I believe in fair compensation and the ability to deliver high-quality work. โœ— โ€œRespect for othersโ€ is not a core value - I love working with awesome people who value collaboration and mutual respect. โœ— โ€œUnbelievable Deadlinesโ€ - I love challenges but building out a custom website in a week and also have quality is something that does not work out or end up being a quality project. โœ— โ€œMVP with all Featuresโ€ โ€“ I know start-up founders want to have everything in their apps but keeping a close eye on the MVP and keeping features to a state that allows for proof of concept is key. Iโ€™ve worked on over 400 websites and built around 50 apps in my 10+ years being a freelancer. I have had keen eye towards marketing and business strategy that has helped me help my clients beyond the design and development. Sustainability and steady growth is what I help my clients aim for. I know what it takes to build out a great website / mobile app / web app that would make you feel confident that I can deliver. ๐Ÿ€ Sound like a fit? ๐ŸŸข Press '...' button then โ€˜Send Messageโ€™ button in the top right-hand corner ๐Ÿ’ฌ Write me a personalized note including why you think weโ€™re a good fit to work together ๐Ÿ€ What I look for in a new client: โ— Open mind, relaxed attitude โ— Values relationships & Honesty โ— Knows our minimum scope, and wants the BEST I also give ๐Ÿ‡บ๐Ÿ‡ธ Discount for US military veterans, active service military, first responders and founders w/full-sleeve tattoos ๐Ÿ€ Expertise in Industries E-commerce, Healthcare, Education, Finance and Banking, Real Estate, Travel and Tourism, Hospitality and Restaurants, Automotive, Fashion and Apparel ,Media and Entertainment, Technology and Software, Non-Profit and NGOs, Retail, Legal Services, Consulting, Fitness and Wellness, Manufacturing, Pharmaceuticals, Insurance, Professional Services (e.g., accounting, marketing), Art and Design, Home Improvement and Construction, Beauty and Personal Care, Event Planning, Telecommunications, Agriculture, Energy and Utilities, Logistics and Transportation, Publishing, Gaming and Esports
    Featured Skill Solidity
    Initial Coin Offering
    Ionic Framework
    Smart Contract
    Blockchain Development
    Python
    Webflow
    WordPress
    Conversion Rate Optimization
    Ecommerce Website
    Shopify Website Design
    iOS Development
    React Native
    Laravel
    Android App Development
    Mobile App
    PHP
  • $75 hourly
    • 4.9/5
    • (118 jobs)
    ๐“๐จ๐ฉ ๐Ÿ% ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ | ๐“๐ซ๐š๐ง๐ฌ๐Ÿ๐จ๐ซ๐ฆ๐ข๐ง๐  ๐ˆ๐๐ž๐š๐ฌ ๐ข๐ง๐ญ๐จ ๐‘๐จ๐›๐ฎ๐ฌ๐ญ, ๐’๐œ๐š๐ฅ๐š๐›๐ฅ๐ž ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ With over a decade of hands-on experience in blockchain development, I bring both the technical expertise and strategic insight to bring your project to life. As an Upwork expert-vetted engineer, Iโ€™ve partnered with clients to launch secure, scalable, and innovative blockchain applications across multiple ecosystems. ๐–๐ก๐ฒ ๐–๐จ๐ซ๐ค ๐–๐ข๐ญ๐ก ๐Œ๐ž? โ€ข ๐„๐ง๐-๐ญ๐จ-๐„๐ง๐ ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž: Iโ€™m skilled in every layer of blockchain development, from designing smart contracts and DeFi protocols to launching complete dApps across EVM, Solana, Polkadot, and more. โ€ข ๐’๐ญ๐ซ๐š๐ญ๐ž๐ ๐ข๐œ ๐…๐จ๐œ๐ฎ๐ฌ ๐จ๐ง ๐†๐ซ๐จ๐ฐ๐ญ๐ก: Every project I take on is designed not just to work, but to drive growth, security, and user engagement. With a unique blend of technical and business insight, I deliver blockchain solutions that meet and exceed real-world demands. โ€ข ๐๐ซ๐จ๐ฏ๐ž๐ง ๐’๐ฎ๐œ๐œ๐ž๐ฌ๐ฌ ๐‘๐ž๐œ๐จ๐ซ๐: Iโ€™ve led numerous projects from ideation to launch, consistently achieving client objectives and ensuring scalability for future growth. ๐“๐ž๐œ๐ก๐ง๐ข๐œ๐š๐ฅ ๐’๐ค๐ข๐ฅ๐ฅ๐ฌ & ๐’๐ฉ๐ž๐œ๐ข๐š๐ฅ๐ญ๐ข๐ž๐ฌ ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง & ๐’๐ฆ๐š๐ซ๐ญ ๐‚๐จ๐ง๐ญ๐ซ๐š๐œ๐ญ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โ€ข ๐„๐ญ๐ก๐ž๐ซ๐ž๐ฎ๐ฆ ๐„๐œ๐จ๐ฌ๐ฒ๐ฌ๐ญ๐ž๐ฆ: Solidity, Vyper, ERC standards (ERC20, ERC721, ERC1155) โ€ข ๐’๐จ๐ฅ๐š๐ง๐š ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ: Rust, Anchor Framework โ€ข ๐๐จ๐ฅ๐ค๐š๐๐จ๐ญ & ๐๐ž๐š๐ซ ๐๐ซ๐จ๐ญ๐จ๐œ๐จ๐ฅ: Rust, Ink! โ€ข ๐‚๐š๐ซ๐๐š๐ง๐จ: Plutus (Haskell), Marlowe โ€ข ๐‡๐ฒ๐ฉ๐ž๐ซ๐ฅ๐ž๐๐ ๐ž๐ซ (๐๐ž๐ซ๐ฆ๐ข๐ฌ๐ฌ๐ข๐จ๐ง๐ž๐ ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง): Go, JavaScript ๐…๐ฎ๐ฅ๐ฅ-๐’๐ญ๐š๐œ๐ค ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โ€ข ๐…๐ซ๐จ๐ง๐ญ๐ž๐ง๐: JavaScript, TypeScript, React, Next.js, Vue.js, TailwindCSS, Bootstrap โ€ข ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐‹๐ข๐›๐ซ๐š๐ซ๐ข๐ž๐ฌ: Web3.js, Ethers.js, Solana Web3.js โ€ข ๐๐š๐œ๐ค๐ž๐ง๐ & ๐€๐๐ˆ: Node.js, Python, Go, Rust, C++, GraphQL, Express.js, Flask ๐Œ๐จ๐›๐ข๐ฅ๐ž & ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ โ€ข ๐Œ๐จ๐›๐ข๐ฅ๐ž: Kotlin/Java (Android), Swift (iOS), React Native โ€ข ๐ƒ๐š๐ญ๐š๐›๐š๐ฌ๐ž๐ฌ & ๐’๐ญ๐จ๐ซ๐š๐ ๐ž: PostgreSQL, MySQL, MongoDB, Prisma, IPFS ๐ˆ๐ง๐๐ฎ๐ฌ๐ญ๐ซ๐ข๐ž๐ฌ ๐’๐ž๐ซ๐ฏ๐ž๐ From DeFi and NFTs to enterprise solutions, I work across various industries, customizing each project to meet specific client needs and industry demands. Letโ€™s discuss how we can leverage blockchain to make your vision a powerful reality. Whether itโ€™s a new dApp, DeFi protocol, or enterprise-grade solution, Iโ€™m here to bring your ideas to life with technical excellence and strategic foresight.
    Featured Skill Solidity
    Solana
    Front-End Development
    Next.js
    API Development
    Blockchain
    Web Development
    Rust
    Cryptocurrency
    Smart Contract
    Blockchain, NFT & Cryptocurrency
    DApps
    Ethereum
    Blockchain Development
    React
  • $60 hourly
    • 5.0/5
    • (17 jobs)
    I have over 4 years of experience as a Solidity and React.JS developer, 4 years of experience as a Software Engineer, over 10 years of experience in general programming and have Master's degree in Computer Science. I have experience in working with multiple clients that either need help on only Frontend development, Blockchain development or Full-Stack. I'm fully proficient into writing completely custom code in Solidity based on clients wishes, integrating it properly onto the website and connecting it to the backend server if needed. Blockchain development is a very complicated and sensitive business and you should choose to work with professionals that develop safe and tested smart contracts. Having an untested and poorly written smart contract can put your users funds in danger and ruin your entire project. I can create multiple custom DEFI solutions and also fork existing ones. Some of the many projects which I've built in the past are: โ€ข Smart contract that allows users to bet on a price prediction of cryptocurrencies using decentralized oracles โ€ข NFT launches/drops : regular, whitelisted, gasless whitelisting using wallet signatures, Merkle Tree etc. โ€ข NFT staking, merging etc. โ€ข ERC20 token ICOs: regular, whitelisted, gasless whitelisting โ€ข ERC20 tokens with custom specifications: burnable, tax fee on buying/selling etc. โ€ข DeFi forks of platforms (Uniswap, Pancakeswap and others) โ€ข Creating a bridge for wrapping NFTs and ERC20 tokens between chains I am highly capable of building you full custom solutions on Ethereum, Binance Smart Chain, Polygon and many other chains.
    Featured Skill Solidity
    Next.js
    Blockchain
    Smart Contract
    JavaScript
    React
  • $10 hourly
    • 5.0/5
    • (64 jobs)
    Hello. Do you need a specialist or a small team experienced in full-stack project development? You are on the right profile! With 8+ years of Experience in Blockchain Development, Web Development, Design, Mobile Apps Development, NFT, DeFi, and Smart Contracts development. I have worked on a wide range of projects in these areas, from designing and building custom blockchain-based solutions to creating NFT marketplaces to integrating smart contracts into existing systems and creating a full end-to-end website. Over the course of 100+ projects, I have gained a comprehensive understanding of the entire blockchain development process, from ideation to deployment. At the initial conversation, I would like you to have a look at my portfolio(which can be shared on request) to decide if you would enjoy working together with me. I always complete my project within the time limit. Provide ongoing support and respond quickly to make quick adjustments. I strongly believe that customer satisfaction is the key to success and thatโ€™s why I always try to keep my Clients happy. What I can help with: Blockchain- Solana, EThereum, Polygon, Base, Arbitrum Trading Bot, Arbitrage Bot NFT projects (art collections etc.) Meme Coins, Token, DeFi, GameFi DApp Development *****99.9% of reviews are 5 stars..... Scroll down more to check my completed jobs on blockchain technology.***** Important: A complex approach is preferred: discovery phase, UI/UX design, development, and support). I have a small team to create software comprehensively. You do not need to spend much time managing the work process. Why should you choose me: Communicative Highly experienced (6 years in IT) Responsible Cool (maybe) You may keep learning information here on my profile, or just invite me to your project to discuss how we can cooperate. The green โ€œinviteโ€ button is above :). I would be honored to bring my expertise to your next project. Good luck!
    Featured Skill Solidity
    Full-Stack Development
    MERN Stack
    MongoDB
    React
    ExpressJS
    Next.js
    Blockchain
    NFT Marketplace
    web3.js
    NFT
    JavaScript
    Smart Contract
    NFT Minting
    Node.js
  • $175 hourly
    • 5.0/5
    • (14 jobs)
    With my experience as a software engineer, I have developed a process to deliver highly reliable software to solve your most critical problems and accomplish your most valuable goals. I will first directly work with you to understand your requirements and reach a mutual agreement of the optimal solution, and then I will work diligently to implement this solution. My own development tools and processes include version control, automated tests, documentation, and much more. I value rapid prototyping and a quick feedback loop with stakeholders, and I will be able to adjust my development process to fit a project's unique needs.
    Featured Skill Solidity
    GitLab
    React
    Node.js
    Electron
    TypeScript
    JavaScript
    CSS
    React Native
    HTML
    Git
  • $20 hourly
    • 4.9/5
    • (93 jobs)
    ๐˜๐จ๐ฎ๐ซ ๐“๐ซ๐ฎ๐ฌ๐ญ๐ž๐ ๐๐š๐ซ๐ญ๐ง๐ž๐ซ ๐Ÿ๐จ๐ซ ๐€๐ˆ-๐ƒ๐ซ๐ข๐ฏ๐ž๐ง ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ With over ๐Ÿ— ๐ฒ๐ž๐š๐ซ๐ฌ ๐จ๐Ÿ ๐ž๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž, I specialize in building ๐€๐ˆ-๐ฉ๐จ๐ฐ๐ž๐ซ๐ž๐ ๐›๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ that drive automation, security, and efficiency. Whether you're looking for ๐ฌ๐ฆ๐š๐ซ๐ญ ๐œ๐จ๐ง๐ญ๐ซ๐š๐œ๐ญ ๐š๐ฎ๐ญ๐จ๐ฆ๐š๐ญ๐ข๐จ๐ง, ๐€๐ˆ-๐๐ซ๐ข๐ฏ๐ž๐ง ๐ƒ๐ž๐…๐ข ๐ฉ๐ฅ๐š๐ญ๐Ÿ๐จ๐ซ๐ฆ๐ฌ, ๐›๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง-๐ข๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ž๐ ๐€๐ˆ ๐š๐ฉ๐ฉ๐ฅ๐ข๐œ๐š๐ญ๐ข๐จ๐ง๐ฌ, ๐จ๐ซ ๐€๐ˆ-๐ฉ๐จ๐ฐ๐ž๐ซ๐ž๐ ๐๐…๐“ ๐ฆ๐š๐ซ๐ค๐ž๐ญ๐ฉ๐ฅ๐š๐œ๐ž๐ฌ, I provide ๐œ๐ฎ๐ญ๐ญ๐ข๐ง๐ -๐ž๐๐ ๐ž, ๐ฌ๐œ๐š๐ฅ๐š๐›๐ฅ๐ž, ๐š๐ง๐ ๐Ÿ๐ฎ๐ญ๐ฎ๐ซ๐ž-๐ฉ๐ซ๐จ๐จ๐Ÿ ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ tailored to your business. I donโ€™t just build blockchain or AI separatelyโ€”I ๐ฆ๐ž๐ซ๐ ๐ž ๐ญ๐ก๐ž ๐ฉ๐จ๐ฐ๐ž๐ซ ๐จ๐Ÿ ๐€๐ˆ ๐ฐ๐ข๐ญ๐ก ๐›๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง to create smarter, more efficient, and automated systems. ๐ŸŒŸ ๐–๐ก๐ฒ ๐–๐จ๐ซ๐ค ๐–๐ข๐ญ๐ก ๐Œ๐ž? - ๐๐ซ๐จ๐ฏ๐ž๐ง ๐“๐ซ๐š๐œ๐ค ๐‘๐ž๐œ๐จ๐ซ๐ โ€“ 100% Job Success | 1800+ Work Hours | Multiple 5-Star Reviews - ๐„๐ฑ๐ฉ๐ž๐ซ๐ญ ๐ข๐ง ๐€๐ˆ + ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐…๐ฎ๐ฌ๐ข๐จ๐ง โ€“ AI-driven Smart Contracts, DeFi Automation, AI-Powered Web3 Apps - ๐ˆ๐’๐Ž-๐‚๐ž๐ซ๐ญ๐ข๐Ÿ๐ข๐ž๐ ๐„๐ฑ๐œ๐ž๐ฅ๐ฅ๐ž๐ง๐œ๐ž โ€“ ISO 9001:2015, ISO 27001:2013, ISO/IEC 27701:2019 - ๐„๐ง๐-๐ญ๐จ-๐„๐ง๐ ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ โ€“ From Idea to Deployment, I Cover It All - ๐…๐ซ๐ž๐ž ๐‚๐จ๐ง๐ฌ๐ฎ๐ฅ๐ญ๐š๐ญ๐ข๐จ๐ง โ€“ Letโ€™s Discuss the Best Tech Stack for Your Project ๐Ÿ”— ๐€๐ˆ-๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ž๐ ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ - ๐€๐ˆ-๐๐จ๐ฐ๐ž๐ซ๐ž๐ ๐’๐ฆ๐š๐ซ๐ญ ๐‚๐จ๐ง๐ญ๐ซ๐š๐œ๐ญ๐ฌ โ€“ Self-learning, automated contract execution - ๐๐…๐“ & ๐“๐จ๐ค๐ž๐ง ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โ€“ AI-driven insights for NFT pricing & custom token models (ETH, BSC, Polygon, Tron) - ๐€๐ˆ-๐„๐ง๐ก๐š๐ง๐œ๐ž๐ ๐๐…๐“ ๐Œ๐š๐ซ๐ค๐ž๐ญ๐ฉ๐ฅ๐š๐œ๐ž๐ฌ โ€“ Smart recommendations, fraud detection & automated royalty tracking - ๐‘๐–๐€ & ๐ƒ๐ž๐๐ˆ๐ ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ โ€“ AI-powered tokenization of real-world assets - ๐‚๐ซ๐จ๐ฌ๐ฌ-๐‚๐ก๐š๐ข๐ง ๐€๐ˆ ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ โ€“ Secure AI-driven interoperability between chains - ๐€๐ˆ-๐๐š๐œ๐ค๐ž๐ ๐‚๐ซ๐ฒ๐ฉ๐ญ๐จ ๐–๐š๐ฅ๐ฅ๐ž๐ญ๐ฌโ€“ Secure transactions with predictive analytics - ๐ƒ๐„๐— ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โ€“ AI-powered automated trading & liquidity management (Uniswap, PancakeSwap, Custom) - ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐„๐ฑ๐ฉ๐ฅ๐จ๐ซ๐ž๐ซ๐ฌ โ€“ AI-based blockchain analytics for fraud detection & risk analysis ๐Ÿค– ๐€๐ˆ-๐„๐ง๐ก๐š๐ง๐œ๐ž๐ ๐–๐ž๐›๐Ÿ‘ & ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ - ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง-๐๐จ๐ฐ๐ž๐ซ๐ž๐ ๐€๐ˆ ๐€๐ฉ๐ฉ๐ฌ โ€“ Decentralized AI solutions with smart automation - ๐€๐ˆ-๐ƒ๐ซ๐ข๐ฏ๐ž๐ง ๐–๐ž๐› ๐€๐ฉ๐ฉ๐ฌ โ€“ Chatbots, predictive analytics, fraud detection - ๐€๐ˆ + ๐–๐ž๐›๐Ÿ‘ ๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ข๐จ๐ง โ€“ AI-powered decentralized applications (dApps) - ๐€๐ˆ-๐๐จ๐ฐ๐ž๐ซ๐ž๐ ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐€๐ฉ๐ฉ๐ฌ โ€“ Personalized recommendations, voice assistants, automation ๐Ÿ’ป ๐–๐ž๐› ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ - ๐๐ž๐ฑ๐ญ-๐†๐ž๐ง ๐–๐ž๐› ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โ€“ React.js, Next.js, Node.js, Web3.js, TypeScript - ๐€๐ˆ-๐๐จ๐ฐ๐ž๐ซ๐ž๐ ๐–๐ž๐›๐ฌ๐ข๐ญ๐ž๐ฌ โ€“ Smart, interactive, and personalized user experiences - ๐€๐ˆ-๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ž๐ ๐–๐ž๐›๐Ÿ‘ ๐๐ฅ๐š๐ญ๐Ÿ๐จ๐ซ๐ฆ๐ฌ โ€“ AI-driven analytics, automation, and security features ๐Ÿ“ฑ ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐€๐ฉ๐ฉ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ - ๐€๐ˆ-๐ƒ๐ซ๐ข๐ฏ๐ž๐ง ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐€๐ฉ๐ฉ๐ฌ โ€“ Intelligent, automated, and data-driven user experiences - ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง-๐ˆ๐ง๐ญ๐ž๐ ๐ซ๐š๐ญ๐ž๐ ๐Œ๐จ๐›๐ข๐ฅ๐ž ๐’๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ โ€“ Secure Web3 applications powered by AI - ๐€๐ˆ-๐๐จ๐ฐ๐ž๐ซ๐ž๐ ๐‚๐ก๐š๐ญ๐›๐จ๐ญ๐ฌ & ๐•๐ข๐ซ๐ญ๐ฎ๐š๐ฅ ๐€๐ฌ๐ฌ๐ข๐ฌ๐ญ๐š๐ง๐ญ๐ฌ โ€“ Enhancing mobile UX with smart interactions - ๐‚๐ซ๐จ๐ฌ๐ฌ-๐๐ฅ๐š๐ญ๐Ÿ๐จ๐ซ๐ฆ ๐ƒ๐ž๐ฏ๐ž๐ฅ๐จ๐ฉ๐ฆ๐ž๐ง๐ญ โ€“ Scalable & high-performance apps with Flutter and React Native ๐Ÿ”ฅ๐–๐ก๐š๐ญ ๐’๐ž๐ญ๐ฌ ๐Œ๐ž ๐€๐ฉ๐š๐ซ๐ญ? - ๐€๐ˆ + ๐๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐…๐ฎ๐ฌ๐ข๐จ๐ง โ€“ Innovating at the intersection of AI & Web3 - ๐‚๐ฅ๐ข๐ž๐ง๐ญ-๐…๐จ๐œ๐ฎ๐ฌ๐ž๐ ๐€๐ฉ๐ฉ๐ซ๐จ๐š๐œ๐ก โ€“ Clear Communication & On-Time Delivery โœ” ๐„๐ง๐-๐ญ๐จ-๐„๐ง๐ ๐’๐ฎ๐ฉ๐ฉ๐จ๐ซ๐ญ โ€“ From Concept to Deployment & Maintenance ๐Ÿš€ ๐‘๐ž๐š๐๐ฒ ๐ญ๐จ ๐›๐ฎ๐ข๐ฅ๐ ๐ญ๐ก๐ž ๐Ÿ๐ฎ๐ญ๐ฎ๐ซ๐ž ๐จ๐Ÿ ๐€๐ˆ-๐ฉ๐จ๐ฐ๐ž๐ซ๐ž๐ ๐›๐ฅ๐จ๐œ๐ค๐œ๐ก๐š๐ข๐ง ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ? Letโ€™s connect and make it happen! ๐Ÿ“ฉ ๐Œ๐ž๐ฌ๐ฌ๐š๐ ๐ž ๐ฆ๐ž ๐ง๐จ๐ฐ ๐Ÿ๐จ๐ซ ๐š ๐Ÿ๐ซ๐ž๐ž ๐œ๐จ๐ง๐ฌ๐ฎ๐ฅ๐ญ๐š๐ญ๐ข๐จ๐ง!
    Featured Skill Solidity
    Generative AI
    OpenAI API
    AI Development
    Hyperledger Fabric
    Next.js
    PIVX
    Smart Contract
    Blockchain
    Cryptocurrency
    Ethereum
    Bitcoin
    React
    Mobile App Development
    Flutter
  • $80 hourly
    • 5.0/5
    • (41 jobs)
    I have been an IT engineer for more than 12 years, including the Backend part, Database optimization, Server setup, WEB3, DevOps, custom blockchain development, and API of other Services. Have experience in developing projects from the very start in JavaScript, Golang, Rust, C++, Dart, Erlang, and Solidity. I am highly responsible for my work, punctual, and attentive to little details. I like complex tasks to do and finding nonlinear decisions. I was part of a team of such big projects as: - Elrond (EGLD) : Launch of IEO, development of a sharding system; - Crypto wallet Bread (BRD) : Development and audit of payment gateways; - CoinPayments : Development of payment gateways and storage of cryptocurrency funds. By working with me, you can be sure of the stable functioning of your application. Listed below are my experience and skills. โ€“ JavaScript (ReactJS, NodeJS, ECMAScript); โ€“ WebAssembly; โ€“ C++; โ€“ Rust; โ€“ Solidity; โ€“ Erlang; โ€“ Dart; โ€“ Golang. โ€“ GraphQL; โ€“ PostgreSQL; โ€“ LevelDB; โ€“ RocksDB. โ€“ PlayCanvas; โ€“ WebXR. โ€“ Blockchain Protocols; โ€“ Copy trading protocols and architecture; โ€“ Smart Contract Audit; โ€“ Exchange development (CEX); โ€“ Decentralized exchange development (DEX); โ€“ Arbitrage and Trading bots development; โ€“ ICO/IDO/IBCO/LBP/IFO; โ€“ Flash loans bots; โ€“ Front-running, snipe, and sandwich bots; โ€“ Wallet (flutter) development configuration; โ€“ TradingView configuration; โ€“ Meta; โ€“ Metaverse; โ€“ DeFi; โ€“ NFT; โ€“ GameFi. I've worked with the following services: โ€“ AWS (EC2, ELB, ASG, RDS, ElastiCache, S3); โ€“ AWS Serverless Fundamentals (Lambda, DynamoDB, Cognito, API Gateway); โ€“ Monitor, Trace and Audit your microservices using CloudWatch, X-Ray, and CloudTrail; โ€“ Linux, AWS, Bash & Python Scripting, Jenkins, Ansible, Docker, Kubernetes, Cloudformation, Terraform; โ€“ Sentry; โ€“ Pingdom; โ€“ Supervisor; โ€“ uWSGI; โ€“ Vagrant; โ€“ Git, CLI; โ€“ Ansible; โ€“ Apache; โ€“ Datadog; โ€“ Docker, Docker Compose; โ€“ Gunicorn; โ€“ Nginx. โ€“ CCXT; โ€“ OpenDAX; โ€“ OpenZeppelin Truffle; โ€“ MetaMask; โ€“ Ganache; โ€“ Remix IDE; โ€“ Geth; โ€“ Parity; โ€“ Web3.js โ€“ Ethers.js; โ€“ Infura; โ€“ Embark; โ€“ Brownie; โ€“ Alchemy; โ€“ Drizzle. โ€“ Bitcoin; โ€“ Lightning Network; โ€“ Ethereum Smart Contracts(ERC-20, ERC-721, ERC-223, ERC-777, ERC-1155, ERC-1337, ERC-3643 (ex-T-REX) and the ERC-1400); โ€“ Binance Smart Chain (BNB); โ€“ Cardano (ADA); โ€“ Solana (SOL); โ€“ Avalanche (AVAX); โ€“ Terra (LUNA); โ€“ Polkadot (DOT); โ€“ Polygon (MATIC); โ€“ Cosmos (ATOM); โ€“ Chainlink (LINK); โ€“ NEAR Protocol (NEAR); โ€“ Uniswap (UNI); โ€“ TRON (TRX); โ€“ Decentraland (MANA); โ€“ PancakeSwap (CAKE); โ€“ Toncoin (TON).
    Featured Skill Solidity
    Ethereum
    web3.js
    Blockchain
    Blockchain, NFT & Cryptocurrency
    Smart Contract
    Blockchain Development
    Bitcoin
    Web3
    Network Architecture
    Blockchain Architecture
    Golang
    React
    JavaScript
  • $25 hourly
    • 5.0/5
    • (49 jobs)
    Hi there, I'm Peter, a senior developer from Viet Nam with 5+ years of experience. I graduated from Da Nang University of Technology and Science, major in Software Engineering. I work hard and can communicate in English fluently. I can develop many things including web apps, mobile apps, decentralized apps, automation tools, data scraper, etc. Currently, I'm fully available and looking for a long-term relationship. Looking forward to working on your next project.
    Featured Skill Solidity
    Web3
    Firebase
    Supabase
    Web Development
    MongoDB
    Next.js
    NestJS
    React
    React Native
    DApps
    Node.js
    Blockchain Development
    Smart Contract
    TypeScript
  • $140 hourly
    • 5.0/5
    • (38 jobs)
    Expert Blockchain Analyst, Developer and Consultant / Target-driven and Client Focused Specialist. I am a full stack developer, with vast experience in blockchain projects and algorithmic trading strategies. I can help you with: ๐Ÿ”น Tokenomics: Design the economic system of a token to incentivise its usage. ๐Ÿ”น Token Development: I can create ERC-20 or BEP-20 tokens with gas cost optimisation ๐Ÿ”น NFTs (ERC-721) : Either for collectibles, art, or games, NFTs allow you to create engaging user experiences in blockchain applications. - Website for minting NFTs - Reveal functionality after sold out - Whitelist pre-sale functionality - Private / Public sale smart contract - NFT staking ๐Ÿ”นERC-1155: gas-efficient token contracts ๐Ÿ”น Bots: The fastest buyers and sellers upon any trigger. The bots can operate on CEX or DEX. ๐Ÿ”น DeFi: The economic revolution is happening, and I can help you building tools on top of it. Proficient with: Solidity, Python, Javascript, Django, REST, Flask, React, Hardhat, Truffle, vue.js, reactjs, express.js Blockchains: Ethereum (ETH), Bitcoin (BTC), Avalanche Contract Chain (C-Chain), Binance Smart Chain (BSC), Fantom Opera (FTM), Polygon (MATIC). Cryptocurrency exchanges: UniSwap, PancakeSwap Let's get into a call and discuss how to make your project happen.
    Featured Skill Solidity
    Binance Coin
    Blockchain Development
    Ethereum
    DApps
    Smart Contract
    DApps User Experience
    Blockchain Architecture
    React Native
    Vue.js
    JavaScript
    AngularJS
    Django
    Flask
    React
  • $111 hourly
    • 4.8/5
    • (70 jobs)
    โœ…Frontend: HTML, CSS, JS, TS, React, Vue, Svelte, Web3 โœ…Backend: Solidity, Rust, Golang, Python, Node โœ…Protocol: Solidity, Anchor, Hardhat, Foundry Software developer that enjoys tackling interesting challenges, designing novel solutions and problem solving.
    Featured Skill Solidity
    Ethereum
    Rust
    web3.js
    Golang
    Python
    Node.js
    Smart Contract
    React
    Linux
    Digital Marketing
    MQTT
    Vue.js
    DApps
  • $25 hourly
    • 5.0/5
    • (10 jobs)
    I'm a Full Stack JavaScript Engineer with over 5 years of experience building and maintaining scalable enterprise software solutions. I specialize in building scalable architectures, optimizing both front-end and back-end systems, and solving challenging technical problems to help businesses grow. I have experience working with companies like Playnance, Franck Muller, Hiive Solution, Rembrandt, and Google, among others, scaling systems to support over 100,000 users while ensuring top-notch performance. I can help you with every aspect of the JavaScript technology stack by: - Creating user-friendly, robust applications that grow alongside your business. - Seamlessly integrating tools and services to streamline workflows. - Optimizing performance, scalability, and reliability for the best user experience. - Providing proactive project management and effective communication for smooth collaboration. I have worked across industries like: ๐Ÿ”— Web3, ๐Ÿ’ฐ Finance, ๐Ÿšš Transport and Logistics, ๐Ÿค– Automation, ๐ŸŽ“ Education Specialization Skills Include: โ€ข Front-End: ReactJS, NextJS, React Native, Expo โš›๏ธ โ€ข Back-End: NodeJS, ExpressJS, Redis, Prometheus, Grafana ๐ŸŒ โ€ข Project Management: Trello, Slack, Jira, Upbase ๐Ÿ’ผ โ€ข Web Services: AWS, Heroku, Digital Ocean, AWS S3, AWS EC2, Vercel ๐Ÿ’ป โ€ข Databases: PostgreSQL, MongoDB, Firebase ๐Ÿ“ˆ๐Ÿ“Š โ€ข Real-Time Communication: Socket.io ๐Ÿ•’ โ€ข Authentication: Auth0, JWT, Passport ๐Ÿ” โ€ข Payment Gateways: Stripe, PayPal, Paddle ๐Ÿ’ณ โ€ข Social Integrations: Google, GitHub, Twitter ๐ŸŒ โ€ข Location Services: Mapbox API, Leaflet ๐Ÿ—บ๏ธ โ€ข Blockchain: Web3.js, ethers.js, Solana, Anchor framework ๐Ÿ”— โ€ข DevOps Tools: Docker, Git, GitHub Actions โš™๏ธ โ€ข Testing: Jest, Cypress, React Testing Library ๐Ÿงช โ€ข API Design: RESTful APIs ๐ŸŒ โ€ข Performance Optimization: Application tuning, scalable architectures โšก Keywords ๐Ÿ”‘: React.js, Next.js, React Native, Expo, Tailwind CSS, MUI, Framer Motion, Leaflet.js, Redux, Recoil, Node.js, Express.js, Sequelize, Firebase, RESTful APIs, Web3 integration, ethers.js, Solana, JWT, Socket.io, PostgreSQL, MongoDB, Redis, Docker, Kubernetes, Git, Jenkins, Nginx, AWS Lambda, Serverless, Prometheus, Grafana.
    Featured Skill Solidity
    Firebase
    ExpressJS
    Tailwind CSS
    React Native
    Next.js
    React
    API Integration
    Node.js
    CSS
    JavaScript
    API Development
    App Development
    Web Development
    Web Application
  • $20 hourly
    • 4.9/5
    • (38 jobs)
    Hi, Iโ€™m Aamir! My expertise in Web3 development has earned me the ๐Ÿ† Best Web3 Project of the Year Award at the Dubai Crypto 306 event. A testimonial to my quality work is reflected on Upwork as I am ranked in the top 3% with a strong track of 100% Job Success Score for over two years. I've strong partnerships in the Web 3.0 space, especially around fundraising and investor relations, and Iโ€™ve had the chance to represent my work at public forums, media events, and conferences like ๐“๐จ๐ค๐ž๐ง ๐Ÿ๐ŸŽ๐Ÿ’๐Ÿ— ๐ข๐ง ๐’๐ข๐ง๐ ๐š๐ฉ๐จ๐ซ๐ž & ๐ƒ๐ฎ๐›๐š๐ข, ๐š๐ฌ ๐ฐ๐ž๐ฅ๐ฅ ๐š๐ฌ ๐ญ๐ก๐ž ๐๐ฎ๐š๐ง๐ญ๐ฎ๐ฆ ๐“๐ž๐œ๐ก ๐ž๐ฏ๐ž๐ง๐ญ ๐ข๐ง ๐๐š๐ญ๐š๐ซ. I have a deep understanding of blockchain technology, DeFi, Web3, and the digital asset markets and direct experience with designing and implementing distributed systems. ๐Ÿ”— I have an All-in-One Web3 Team and we provide end-to-end Web 3.0 Services โ€“ o Tokenomics & Pitch Decks o Websites & Smart Contracts โ€“ Solidity & Rust, 10/10 Hacken audit. o Testnet & Mainnet Deployment โ€“ From the first line of code to live launch. Since the rise of AI in 2021, Iโ€™ve also focused on AI product development and workflow automation. Now, in 2025, as generative AI has evolved into Agentic AI, Iโ€™m combining Web 3.0 with AI to create something impactful in the market. ๐ˆโ€™๐ฆ ๐œ๐จ๐ฆ๐›๐ข๐ง๐ข๐ง๐  ๐–๐ž๐› ๐Ÿ‘.๐ŸŽ ๐ฐ๐ข๐ญ๐ก ๐€๐ˆ ๐ญ๐จ ๐œ๐ซ๐ž๐š๐ญ๐ž ๐ฌ๐จ๐ฆ๐ž๐ญ๐ก๐ข๐ง๐  ๐ข๐ฆ๐ฉ๐š๐œ๐ญ๐Ÿ๐ฎ๐ฅ ๐ข๐ง ๐ญ๐ก๐ž ๐ฆ๐š๐ซ๐ค๐ž๐ญ. Our Comprehensive Service Portfolio: ๐—”๐—œ & ๐— ๐—ฎ๐—ฐ๐—ต๐—ถ๐—ป๐—ฒ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป๐—ถ๐—ป๐—ด ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€ โ€ข Custom AI Solution Development โ€ข Conversational AI โ€ข Computer Vision Systems โ€ข Predictive Analytics โ€ข Machine Learning Operations โ€ข Process Automation โ€ข Recommendation Systems โ€ข Voice & Speech Recognition โ€ข Natural Language Processing โ€ข Generative AI Solutions โ€ข RAG Implementation โ€ข AI Integration Services โ€ข Edge AI Deployments โ€ข Vector Database Implementation ๐—•๐—น๐—ผ๐—ฐ๐—ธ๐—ฐ๐—ต๐—ฎ๐—ถ๐—ป & ๐—ช๐—ฒ๐—ฏ๐Ÿฏ ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€ โ€ข Smart Contract Development โ€ข NFT Marketplace Development โ€ข DeFi Protocol Implementation โ€ข Tokenomics Design โ€ข Token Development โ€ข DAO Structure Development โ€ข Blockchain Integration โ€ข Crypto Exchange Development โ€ข Web3 Wallet Integration โ€ข Cross-Chain Bridges โ€ข Blockchain Security Audits โ€ข ICO/IDO Launchpads โ€ข Metaverse Development โ€ข Smart Contract Optimization โ€ข Blockchain Analytics ๐—ช๐—ฒ๐—ฏ & ๐—ฆ๐—ฎ๐—ฎ๐—ฆ ๐—”๐—ฝ๐—ฝ๐—น๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€ โ€ข Custom SaaS Platform Development โ€ข E-commerce Development โ€ข Enterprise Web Applications โ€ข CRM & ERP Systems โ€ข Real-time Applications โ€ข Progressive Web Apps โ€ข API Development & Integration โ€ข Cloud-based Solutions โ€ข Data Visualization Dashboards โ€ข Performance Optimization โ€ข Full-stack Development โ€ข Authentication Systems โ€ข WebGL & 3D Animations โ€ข Custom CMS Development ๐——๐—ฒ๐˜€๐—ธ๐˜๐—ผ๐—ฝ ๐—”๐—ฝ๐—ฝ๐—น๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€ โ€ข Cross-platform Desktop Applications โ€ข Windows Application Development โ€ข macOS Application Development โ€ข Linux Desktop Software โ€ข Desktop Automation Tools โ€ข Financial Trading Applications โ€ข Office Integration & Add-ins โ€ข Data Analysis Tools โ€ข Inventory Management Systems โ€ข Enterprise Desktop Solutions โ€ข Desktop GUI Development โ€ข Desktop-Cloud Hybrid Applications โ€ข RPA Implementation โ€ข Document Processing Tools โ€ข Specialized Industry Software ๐— ๐—ผ๐—ฏ๐—ถ๐—น๐—ฒ ๐—”๐—ฝ๐—ฝ๐—น๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€ โ€ข Native iOS Development โ€ข Native Android Development โ€ข Cross-platform Development โ€ข Mobile E-commerce โ€ข Location-based Applications โ€ข AR/VR Mobile Experiences โ€ข Mobile Game Development โ€ข IoT Mobile Controls โ€ข Secure Mobile Payment Systems โ€ข Enterprise Mobile Solutions โ€ข Website to Mobile App Conversion โ€ข On-demand Service Applications โ€ข Social Networking Applications โ€ข Real-time Communication Apps โ€ข Mobile App Store Optimization At Octaloop Technologies, we don't just build technology - we build digital solutions that drive business growth, enhance user experiences, and create lasting value in an increasingly digital world. Our comprehensive expertise allows us to serve as your one-stop technology partner, delivering excellence across the entire digital spectrum. Have a project in mind? Let's talk about how our team can help bring your ideas to life!
    Featured Skill Solidity
    Full-Stack Development
    Computer Vision
    Dialogflow
    Automation
    Chatbot
    Blockchain, NFT & Cryptocurrency
    Smart Contract
    Solana
    DApps
    Cryptocurrency Forking
    Blockchain Development
    Crypto Wallet Development
    NFT Marketplace
  • $30 hourly
    • 4.5/5
    • (130 jobs)
    With 8 years in IT engineering, I'm your go-to person for Blockchain, Web3, Backend work, Python, and Server setup. I'm all about the details, thriving on solving tricky problems with creative solutions. Why choose me? I'll build your custom apps just the way you want, and I'll make sure it's all done on time and hassle-free! *Successful Projects: $18M in ERC-20 token market cap, $10M funding raised in a blockchain project, and $1M in NFTs* I've been part of some cool projects: - MBD Financials: Helped launch the NFT Marketplace - Omni Mosquitoes NFT: Helped them with multichain NFT Collection - CryptBartex: Helped them to develop a complete solution for Digital Assets Swap Here's what I bring to the table: Languages: - JavaScript (ReactJS, NextJS, NodeJS) - Python - Solidity Databases: - MongoDB - PostgreSQL - MySQL Blockchain Skills: - Blockchain Protocols - Copy trading tricks - DEFI - Ethereum Dapps - Ethereum Smart Contracts - Ethereum NFTs and Tokens - Telegram Crypto Bots - Telegram Mini Apps - NFT Marketplace - Staking Dapp - Token Launchpad and Token Crosschain Bridge - Escrows - Smart Contracts - Smart Contract Audit - Exchange development (CEX) - Decentralized exchange work (DEX) - ICO/IDO - Wallets - TradingView configuration - Metaverse - GameFi Blockchain Development Tools: OpenZeppelin Truffle - MetaMask - Wallet Connect - Ganache - Remix IDE - Geth - Web3py - Web3.js - Ethers.js - Infura - Brownie - Alchemy Blockchain Platforms: - Bitcoin - Ethereum - Binance Smart Chain (BNB) - Avalanche (AVAX) - Polygon (MATIC) - Uniswap (UNI) - TRON (TRX) - Decentraland (MANA) - PancakeSwap (CAKE) Ready to bring my experience and knack for problem-solving to your projects. Let's make tech work for you!
    Featured Skill Solidity
    Smart Contract
    web3.js
    Ethers.js
    Web3
    Blockchain, NFT & Cryptocurrency
    Blockchain
    NFT Marketplace
    Smart Contract Development
    Ethereum
    DApps
    Blockchain Development
    Cryptocurrency
    Python
    Django
  • $30 hourly
    • 4.6/5
    • (45 jobs)
    Technical Skills Frontend Development Languages & Frameworks: HTML5, CSS3, JavaScript (ES6+), TypeScript. Trading/Forex: MT4, MT5, Stock api's, exchange api's , charts and stock/exchange tables. Libraries & Frameworks: Framer motion | Strapi Sanity | No code bubble | Wix ReactJS, Redux, NextJS, and Remix.js. Apollo Client for GraphQL integration. State Management: Redux, Context API, URQL. Component Libraries: Tailwind, Material-UI, shadcn UI, Daisy-UI, Bootstrap. UI/UX Design: Responsive and mobile-first design principles. Client-side routing with React Router. Frontend performance optimization. GraphQL: Schema design, resolvers, queries, mutations, and subscriptions. Optimizing GraphQL queries for performance. Frontend integration with Apollo Client. Real-Time Communication (WebRTC): Video/audio chat applications using WebRTC API. Signaling protocols (WebSocket) for peer-to-peer connections. STUN/TURN server configuration for NAT traversal. Handling real-time data streams. Backend Development Languages: Node.js, Python, GoLang. Frameworks & Libraries: Node.js/Express.js, Apollo Server. RESTful and GraphQL API design & integration. Authentication & Authorization: JWT, Passport.js, OAuth. Firebase Rest API, Realtime DB, Cloud Fire store, Firebase Authentication. Middleware development for request handling and validation in Express. Blockchain Development: Smart contracts and decentralized applications (DApps) on Ethereum and other EVM-compatible networks. Proficiency in Solidity, Web3.js, Ethers.js, and Third web. Token Standards: ERC-20, ERC-721, ERC-1155. Decentralized storage solutions (IPFS). Familiarity with DeFi protocols and blockchain interoperability. Development tools: Truffle, Hardhat. Payment Gateway Integration: Integration of payment systems like Stripe, PayPal, Braintree. Secure API handling for transactions, subscription systems, refunds, and disputes. PCI compliance and secure processing practices. Databases Relational & NoSQL: Experienced with MongoDB, SQLite, MySQL, PostgreSQL. Proficient with ORMs like Prisma, Type ORM, Mikro-ORM. Key-value databases like Redis. Data modelling, querying, indexing, and server-side caching strategies in MongoDB. Testing & Debugging Test-Driven Development (TDD): Proficient in Jest, Mocha, Chai for unit, behavior, and end-to-end (E2E) testing. Experienced with React Testing Library for frontend component testing. Extensive debugging using tools like Postman for API tests. DevOps & Deployment Cloud & CI/CD: Deploying applications with Docker, Heroku, Vercel, AWS, Google Cloud, Azure. Building CI/CD pipelines for automated testing and deployment. Infrastructure as Code (IaC) with Terraform. Monitoring & Logging: Implementing solutions such as Prometheus, ELK stack. Blockchain Development & Decentralized Applications (DApps) Smart Contract development on Ethereum, using Solidity. Blockchain integration into applications with Web3.js or Ethers.js. Familiar with decentralized finance (DeFi) protocols and blockchain consensus mechanisms. Token creation standards: ERC-20, ERC-721, and ERC-1155. DAPP development tools like Truffle and Hardhat. Experience with decentralized storage solutions such as IPFS. Additional Skills Proficient in managing Docker containers, cloud deployment via Heroku and Vercel. Experience working with headless CMS solutions like Sanity.io and Strapi. Comfortable using version control tools like Git, GitHub, and GitLab. Knowledgeable in Python and Solidity with familiarity in ML libraries such as TensorFlow and SciKit-Learn for machine learning integrated applications. Collaboration Capabilities I can collaborate with you on: Transforming Business Ideas: Develop scalable, efficient, and user-friendly web applications tailored to your business. Enhancing Existing Applications: Add innovative features to your apps that resonate with users. Optimization & Bug Fixing: Improve the performance and stability of your apps by rectifying bugs and optimizing the code. UI/UX Design: Design intuitive and engaging user interfaces and user experiences. Testing & Reliability: Integrate unit testing to improve resilience and reliability of your applications. Blockchain Features: Incorporate blockchain functionalities like smart contracts, token creation, and DApps. Machine Learning Integration: Leverage TensorFlow and SciKit to integrate machine learning models into your applications.
    Featured Skill Solidity
    AWS Amplify
    Microservice
    MERN Stack
    Front-End Development
    AWS Lambda
    RESTful Architecture
    Google Cloud Platform
    DApps
    GraphQL
    web3.js
    TypeScript
    JavaScript
    Ethereum
  • $100 hourly
    • 5.0/5
    • (9 jobs)
    I think I may be able to help! For the 250+ clients and partnerships I have been grateful to work with from NYSE enterprises to Web3, NeuroTech companies to global streaming platforms, these clients consider me a: Web Dev Expert: From developing end to end SaaS solutions to 100s of websites in all levels of industry. I design, develop and execute web development projects that go above and beyond client expectations, secure and transform the way their users see them. Blockchain Dev Expert: I've developed teams and strategies for industries such as finance, entertainment, carbon credit programs, dApps and NFT projects. Recently I developed a NFT project that sold out 8,888 with the first ever built smart contract affiliate system. From there I have gone on to build models for real world asset tokenization and carbon credits. Veteran Developer and Designer: With an acute eye for design and a coder's precision, I bring concepts to life through robust programming and elegant interfaces. My full-stack developer experience spans multiple programming languages and frameworks, while my design acumen is evidenced in engaging, user-centric digital experiences. Conversion and Creative Specialist: As a connector I understand at a micro level what people REALLY want. I've been able to leverage this ability to help people and organizations find ways to improve productivity, sales, and annual revenue all while driving eyes to beautiful design online and off. My Skills; React | Next.js | Vue.js | Angular | Tailwind CSS | GSAP | Javascript | Typescript | SaaS | Node.js | Nest.js | PHP | Laravel | Python | Django | Solidity | Rust | Go | web3.js | ethers.js | AWS | GCP | Firebase | Web Development | Sales | Project Management | Social Networking | Social Media Marketing | Leadership | Online Marketing | Experienced Speaker | Network Marketing Professional | Search Engine Optimization (SEO) | Personal Development | Management | Public Speaking | Microsoft Word | Digital Marketing | Microsoft Office | Blockchain | Full-stack Development
    Featured Skill Solidity
    Machine Learning
    Artificial Intelligence
    ChatGPT
    React
    Web3
    Web Design
    SaaS
    DApp Development
    DeFi
    NFT
    Rust
    Blockchain
    Cryptocurrency
    Smart Contract
  • $150 hourly
    • 5.0/5
    • (38 jobs)
    Expert Vetted - Top 1% Upwork Freelancers Bringing Your Digital Dreams to Life: Are you in search of a digital alchemist to craft your next spatial computing experience, generative art, or a web app for your startup? As a seasoned creative coder and an Expert Vetted freelancer among Upwork's top 1%, I specialise in transforming abstract ideas into captivating web experiences. My focus lies in crafting interaction-driven designs with meticulous attention to animations and details, ensuring an immersive experience that stands out. Why Choose Me for Your Project: Expertise in Interactive and Animated Design: Whether it's a complex spatial computing experience in WebXR or a generative ai interactive installation, my skill set is tailored for high-impact, dynamic projects. Commitment to Excellence: Partnering with me means collaborating with a freelancer who not only listens closely to your vision but also proactively seeks innovative solutions to craft sleek, goal-oriented digital products. Proven Track Record: With over 15 years in the field, I have successfully delivered projects ranging from NFT collections to intricate interactive experiences for clients including L'Orรฉal Paris, Ferrari, MTV, and more. My Specialties Include: Web Development (React, Webflow, Squarespace) Generative Art (p5.js, three.js) Animated 3D Interactive Experiences (three.js, , WebXR, WebGL, GSAP, spline) Spatial Computing & NFT Design, Low Poly 3D Modelling, 3D Animation Emerging AI Tools (ChatGPT API, Midjourney, Stable Diffusion) NFT Landing Pages (Whitelisting and Minting) UX | UI Design (Figma, Sketch) Additional Skills: Expertise in THREE.JS, WebGL, WebXR Proficient in JavaScript, Jquery, React, HTML/CSS Get in Touch: Ready to elevate your digital presence? Scroll to the top, click "Invite to Job," and send a brief description of your project. I'm eager to discuss how we can turn your vision into an unforgettable digital reality. ______ AWARDS โœ…Webby awards People Choice 2011 - Automotive Category โœ…Spike Asia Finalist โœ…Webby Awards 2012 Official Honoree โœ…Webby Awards 2010 Official Honoree โœ…6 FWA SOTD โœ…Pubblication on Taschen Web Design Studios 2 โœ…Targa Oro per la Pubblicitร  - interaction design Conferences: โœ…Future of Digital - General Assembly / Mashable PRESS โœ…Product Hunt โœ…Mashable โœ…Creativity Online - Naked Espresso โœ…Campaign Brief - Peroni Passaggio โœ…AmplifyBusiness - The Future of Digital FEATURED BY โœ…PSFK โœ…Creativity Online โœ…Google Creative Sandbox โœ…Art Copy and Code โœ…SXSW โœ…Mumbrella โœ…Campaign Brief โœ…Arduino blog โœ…Hackaday
    Featured Skill Solidity
    WebGL
    Three.js
    P5.JS
    3D Modeling
    Ethereum
    Blockchain
    Digital Art
    Concept Design
    Cryptocurrency
    web3.js
    GUI Design
    Web Development
  • $50 hourly
    • 4.8/5
    • (53 jobs)
    I am a blockchain smart contract Developer & Consultant, writing smart contracts, creating cryptocurrencies, NFTs, and launching ICOs, with 5 years of experience with solidity and smart contract development in the ethereum blockchain ecosystem. My expertise: - Determining the viability of a blockchain based solution for your business needs - Write smart contract logic code for anything you can think of. - Decentralized cryptocurrency exchange (DEX) - Front Running / Back-running Bots - DEX based trading bots for cryptocurrency - Binance smart chain development - Smart contract Audit - NFT, IPFS, ERC721, ERC1155 development - Token & Coin development - Staking, yield farming, lottery, prediction smart contracts
    Featured Skill Solidity
    KuCoin Shares
    API
    Automation
    Blockchain Development
    Node.js
    Python
    Cryptography
    Binance Coin
    Cryptocurrency
    Smart Contract
    Blockchain
  • $48 hourly
    • 4.8/5
    • (101 jobs)
    Hey! Iโ€™m Vitor. I have two decades of experience in software engineering. I'm super responsive and fluent in english.
    Featured Skill Solidity
    ChatGPT
    Chatbot
    web3.js
  • $12 hourly
    • 4.8/5
    • (21 jobs)
    ๐Ÿ’ก 5+ Years of Experience | Reliable, Scalable, and Secure Solutions A results-driven Python Developer with 5 years of experience specializing in Django, Web Development, and Blockchain Solutions. Skilled in building high-performing applications that are secure, scalable, and optimized for efficiency. ๐Ÿ”น Whatโ€™s Offered: โœ” Django Web Applications โ€“ Scalable and high-performance web solutions โœ” API Development & Integration โ€“ RESTful & GraphQL APIs โœ” Automation & Scripting โ€“ Boost productivity with Python automation โœ” Web Scraping & Data Processing โ€“ Efficient data extraction and analysis โœ” Blockchain Development โ€“ Smart contracts & decentralized applications โœ” Frontend Expertise โ€“ Seamless UI/UX with JavaScript, HTML, and CSS ๐Ÿš€ Why Choose This Service? โœ… 5+ years of hands-on experience โœ… Strong problem-solving and debugging skills โœ… Timely delivery & effective communication โœ… Commitment to high-quality, maintainable code ๐Ÿ“ฉ Ready to discuss your project? Letโ€™s connect and build something amazing together!
    Featured Skill Solidity
    React
    Flask
    AWS Lambda
    RESTful API
    Windows App Development
    Algorand
    NodeJS Framework
    Python
    Web Scraping
    Django
    Selenium
    JavaScript
  • $70 hourly
    • 4.6/5
    • (106 jobs)
    Hyper Speed, ZERO compromise. We are Wolfe Labs, a Toronto-based expert design and development agency in the Blockchain industry. With 7 years of experience in the software industry and 5 years at Web3, we specialize in developing innovative Web3 and decentralized applications (DApps). Our expertise in blockchain technology has allowed us to complete over 200 projects in this space, delivering secure, efficient, and user-friendly DApps tailored to everyone's needs. We excel in smart contract development and decentralized protocols, ensuring seamless functionality and enhanced user engagement. By leveraging the latest advancements in Web3 technology, we empower businesses to innovate and thrive in the decentralized ecosystem, providing high-quality results with exceptional timeliness and cost-effectiveness. We believe that the key to success in every project is Constant Communication, and that won't happen otherwise with constant deliveries and constant feedback. From the requirement gathering phase to the deployment and maintenance of the website for a long time, we will be with you and your team at every step. Wolfe Labs Tech Stack: Blockchain Development: โ€ข Smart Contract Development โ€ข Solidity โ€ข Cadence โ€ข Substrate (Polkadot) โ€ข Flow Blockchain โ€ข Layer 1 and 2 Chain โ€ข Explorer (Like Etherscan) โ€ข Bridge (Like Wormhole) โ€ข Staking โ€ข DEX (Like Uniswap) โ€ข Launchpad (Like BSCPad) โ€ข NFT Marketplace (Like Rarible) โ€ข DeFi (Decentralized Finance) โ€ข All-in-One Defi Dashboard โ€ข ICO, IDO, STO, and ILO โ€ข Remix โ€ข Truffle โ€ข Ethereum Chain โ€ข Binance Smart Chain โ€ข Solana Chain โ€ข Avalanche Chain โ€ข Sui Chain โ€ข Hyperliquid โ€ข ... Frontend Development: โ€ข React.js โ€ข Next.js โ€ข Web3.js โ€ข Ether.js โ€ข Embark โ€ข Drizzle โ€ข ... Mobile Development: โ€ข React Native โ€ข Flutter โ€ข Java & Kotlin โ€ข Swift โ€ข ... Backend Development: โ€ข Node.js โ€ข Express.js โ€ข Golang โ€ข Rust โ€ข ... UI/UX Design: โ€ข Figma โ€ข Sketch โ€ข XD โ€ข Adobe Illustrator โ€ข C4D โ€ข Blender โ€ข 3D Illustrations โ€ข Motion Videos โ€ข 2025 Design Trends โ€ข ... Graphic Design: โ€ข Logo โ€ข White-Paper โ€ข Pitch Deck โ€ข ...
    Featured Skill Solidity
    Node.js
    React
    Dashboard
    Mobile App Development
    Web Application
    DeFi
    NFT
    UX & UI
    NFT Marketplace
    Decentralized Exchange
    Smart Contract
    DApp Development
    Blockchain Development
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