Hire the best Ethereum professionals
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- $45 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/thinktanktomEthereum
Front-End DevelopmentDAppsCryptocurrencyDockerSolidityNode.jsRustAPI - $20 hourly
- 5.0/5
- (94 jobs)
๐๐จ๐ฉ-๐๐๐ญ๐๐ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง & ๐๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐๐ซ | ๐๐+ ๐๐ซ๐ฌ ๐๐ฑ๐ฉ๐๐ซ๐ข๐๐ง๐๐ | ๐๐๐๐, ๐๐ฆ๐๐ซ๐ญ ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ๐ฌ, ๐๐ซ๐ฒ๐ฉ๐ญ๐จ ๐๐ฉ๐ฉ๐ฌ, ๐๐ ๐๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง ๐น ๐๐๐๐ฅ๐๐๐ฅ๐ ๐๐๐๐, ๐๐๐๐ฎ๐ซ๐ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง, and ๐๐ฆ๐๐ซ๐ญ๐๐ซ ๐๐ ๐๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ. Looking for a senior blockchain developer or Web3 expert to build a next-gen crypto platform or AI-powered solution? Iโm here to help. With over 10 years of experience, 1800+ hours logged, and a 100% job success rate, I specialize in creating secure, scalable, and innovative solutions that deliver real business value. ๐ก ๐๐๐ซ๐ฏ๐ข๐๐๐ฌ ๐ ๐๐๐๐๐ซ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ - Smart contract development (Ethereum, BSC, Tron, Polygon) - DeFi platforms & DEXs (staking, yield farming, trading bots) - NFT marketplace development (AI-powered pricing, fraud detection) - RWA tokenization, DAO platforms, Depin systems - Blockchain consulting for startups & enterprises ๐๐ + ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง ๐๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง - AI-enhanced smart contracts (self-learning logic, automation) - AI-backed crypto wallets with predictive tools - Cross-chain bridges using AI interoperability - DeFi with AI-powered analytics & trading strategies ๐๐๐๐ & ๐๐ฉ๐ฉ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ - Web3 app development using React.js, Next.js, Node.js - Crypto apps for iOS & Android with Flutter & Dart technology - Decentralized AI apps (Chatbots, dashboards, voice assistants) - Custom Web3, NFT marketplace, and smart UX experiences โจ ๐๐ก๐ฒ ๐๐ฅ๐ข๐๐ง๐ญ๐ฌ ๐๐ก๐จ๐จ๐ฌ๐ ๐๐?? - Top-rated freelance blockchain & AI developer - ISO 9001, ISO 27001, and ISO/IEC 27701 certified process - Fast communication, reliable timelines, free consultations - Transparent pricing with scalable & secure architecture โจ ๐๐๐๐ก ๐๐ญ๐๐๐ค - Blockchain: Solidity, Web3.js, Tron, EVM, Polygon, BSC - AI/ML: OpenAI, Langchain, Whisper, TensorFlow - Web/Mobile: React.js, Next.js, Node.js, TypeScript, Flutter, Express.js - DevOps: Docker, GitHub Actions, CI/CD Letโs build your crypto app, smart contract, or AI platform. I was hoping you could send me a message for a free consultation. Iโll help you choose the right tech stack and strategy for your project.Ethereum
Generative AIOpenAI APIAI DevelopmentHyperledger FabricNext.jsPIVXSmart ContractBlockchainCryptocurrencySolidityBitcoinReactMobile App DevelopmentFlutter - $111 hourly
- 4.8/5
- (70 jobs)
โ Frontend: HTML, CSS, JS, TS, React, Vue, Svelte, Web3 โ Backend: Solidity, Rust, Golang, Python, Node โ Protocol: Solidity, Anchor, Hardhat, Foundry Software developer that enjoys tackling interesting challenges, designing novel solutions and problem solving.Ethereum
Rustweb3.jsGolangPythonNode.jsSmart ContractSolidityReactLinuxDigital MarketingMQTTVue.jsDApps - $45 hourly
- 4.9/5
- (25 jobs)
โญโญโญโญโญ "Akhil is totally fantastic. His work had a tremendous impact on our product. He is very punctual, responsive, and professional in every way imaginable." Hi, Iโm Akhil โ a full-stack developer and AI/Web3 engineer with over 6 years of experience. I help startups and teams turn ideas into real, working products. Whether it's building smart contracts, AI tools, or full platforms from scratch, I can jump in and get things done fast. ๐ง What I Can Do โ 6+ years of Web3 experience: smart contracts, DeFi, NFT platforms, on-ramp/off-ramp payment systems, and more โ AI + Full Stack Development: skilled with Solidity, React, Node.js, TypeScript, Go, Python, OpenAI, LangChain, and cloud setup โ I run Coding Sheep: a small dev agency that helped launch 20+ Web3 and AI products in the past 4 years โ Clear and constant communication: you'll always know what's going on with your project ๐ Projects Iโve Worked On โค๏ธ Mooz โ A marketplace for AI-generated music โค๏ธ Density โ A crypto exchange for trading derivatives โค๏ธ LiveWager โ Real-time online casino and betting platform โค๏ธ 3dSpot โ AI tool that turns 2D images into 3D models ๐ Why Clients Like Working With Me 1๏ธโฃ Trusted to Deliver โ I focus on building real value, not just completing tasks 2๏ธโฃ Easy to Work With โ I reply fast, stay available, and keep everything clear 3๏ธโฃ Can Work in Any Codebase โ Whether the code is new, messy, or old, I can pick it up quickly and start improving it 4๏ธโฃ I Solve Problems โ I donโt stop at writing code โ I help you figure out what works best for your product If you're building something in Web3 or AI, or just need a reliable engineer to get things moving, Iโd love to hear from you.Ethereum
DAppsCryptocurrencyBlockchainSolanaTezosBitcoinReactNode.jsweb3.jsNFT MarketplaceSoliditySmart ContractBlockchain Development - $60 hourly
- 5.0/5
- (34 jobs)
Top 1% Freelancer: Upwork has awarded this freelancer the Expert Vetted Badge! Blockchain | AI | Mobile Co-Founder @InMindSoftware | CTO @ TIEX Tech enthusiast, always looking to enhance and activate businesses for my customers through new technologies, especially blockchain, AI, and mobile. Amateur runner. Our team enjoys doing great work and forming long-term partnerships with our clients. We love innovation and working hard to solve problems that others cannot.Ethereum
BlockchainMobile App DevelopmentAndroid App DevelopmentiOS DevelopmentKotlinJavaAmazon Web ServicesSwiftNode.jsObjective-C - $35 hourly
- 5.0/5
- (21 jobs)
Hi there! If you're visiting my page, perhaps you're looking for a professional. I'm a software developer, programmer, and tech lead with 7 years of experience in the industry. My strong sides are responsibility, attention to client's needs, strong will to achieve the final results of team efforts. I've been working with various programming languages and platforms. My favor is Python for the last 6 years. Also been experienced with JS, PHP, Android, Java, Dart. It's enough comfortable for me to work both in the team and stand-alone development. I can do IT =)Ethereum
Web DevelopmentRESTful ArchitectureAngularAndroidBlockchainRaspberry PiDjangoReactMachine LearningJavaScriptTensorFlowPython - $75 hourly
- 4.7/5
- (222 jobs)
Stop paying for mediocre IT services that drain your budgetโpartner with us for digital solutions that push your boundaries. I'm Roy, founder of Interactivated Solutions. Since 1999, our 25+ years of Dutch innovation help businesses unlock their full potential. My team comprises 75+ full-time IT specialists and a network of freelance experts, all working remotely, to provide you with the best skills and talent to blend cutting-edge technology with a robust Agile mindset, ensuring that every project not only meets but exceeds your expectations. At Interactivated, we provide tailored solutions by delivering individual developers or assembling complete teams focused on E-Commerce, Marketplaces, Custom Software, SaaS, Apps, and more - ensuring a smooth, hassle-free experience for you. Core Expertise: * GenAI โข E-Commerce: Platforms, applications, stores, plugins, and mobile apps. AI/ML Solutions for E-Commerce: Implementing AI virtual shopping assistants, bespoke plugins and extensions, and other intelligent solutions. โข Marketplaces: User-friendly scalable marketplace platforms for startups and scaleups, facilitating seamless transactions and user interactions. Smart Contract Solutions for E-Commerce: Including NFT marketplaces, wallets, and ICO launches. โข Custom Software: Tailored software solutions designed to meet the unique needs of your business, ensuring functionality and scalability. Including rapid prototyping, PoC, and MVP development to accelerate your product journey, test your hypotheses, validate ideas, and secure vital investor support for a quick and efficient market launch. In eCommerce, we excel with headless, PWA, and Composable Commerce solutions, utilizing technologies such as Adobe Commerce, Shopify Plus, BigCommerce Enterprise, and Commerce Tools. For custom software projects, we tailor solutions to your specific needs, ensuring seamless integration with existing systems and delivering scalable, high-performance applications. We develop and optimize marketplace platforms, providing end-to-end solutions that facilitate seamless transactions, enhance user experiences, and support business growth. We understand that every business is unique, and a one-size-fits-all approach simply won't cut it. That's why we offer a comprehensive suite of custom digital solutions, carefully tailored to meet the specific needs and objectives of our clients business and industry. Our approach is technology-agnostic, recommending the best stack for each project. Types of Projects We Deliver: โข Healthcare Uber Platform โข Etsy for Local Craftsmen โข Airbnb Alternatives โข AI Nutrition and Meal Planning App โข Steam-like Cloud Gaming Platform โข Dropbox for Legal and Government โข NFT History Learning Game โข NFT Marketplaces โข All Prototype, PoC and MVP Development โข E-commerce: - Design and Development of New Storefronts - Seamless Integration of 3rd Party Solutions - Custom Plugin Development and Integrations - Site Upgrades Technologies We Use: - PHP and Laravel Framework, JavaScript, TypeScript, React, Vue, Node, Next, Nuxt, GoLang, Python, C#/.Net Core - Cloud Services: AWS, Azure, Google Cloud, Hetzner Cloud, Vercel - E-commerce back-ends: Magento2 (Adobe), Shopify, BigCommerce, Laravel, WooCommerce (rare cases) Check out our GitHub: github.com/interactivated Team and Specialist Solutions: โข On-Demand Specialists: Hire individual experts for short-term or long-term project needs. โข Complete Team Assembly: We build dedicated Agile teams tailored to your project requirements. โข End-to-End Project Management: We manage complete projects from concept development and product realization to market launch Our Clients: โข Startups โข Scale-Ups โข SMEs Why Choose Interactivated? In todayโs fast-paced world, business owners face overwhelming challenges and decisions on a daily basis. Building an IT solution can spiral into chaos, causing stress and a feeling of overwhelm. At Interactivated, we offer a no-hassle, stress-free alternative. We partner with you to transform IT chaos into a streamlined, efficient process that not only meets your business objectives but propels them forward. Here's how we do it: Peace of Mind: We are committed to a transparent, client-focused journey. Less stress for you means less stress for us, resulting in a longer, happier, and more successful partnership. Your Success is Our Success: We focus on launching new products with ruthless prioritization, shaping LEAN prototypes, PoCs, MVPs, and full products. Our goal is to help you validate critical assumptions quickly and speed up market entry. Simplicity and Results: We break down complex IT challenges into manageable elements, delivering results iteratively so youโre never in the dark. We adjust reporting to your needs, ensuring you understand what youโre paying for. Partner with Interactivated to challenge the status quo, unlock limitless possibilities, building market-ready solutions for sustainable business growth.Ethereum
Machine LearningWeb Development.NET FrameworkPythonGolangVue.jsWebsite MigrationTypeScriptLaravelBusiness AnalysisReactPHPNode.jsMagento 2NFT Marketplace - $65 hourly
- 5.0/5
- (40 jobs)
Welcome to my freelance profile! I'm Alexis, a passionate data scientist/data engineer, ready to tackle your challenges with enthusiasm and expertise. Here's what I can do for you: ๐ ๏ธ Design and implementation of data pipelines to handle massive data volumes (~TB). Data Retrieval: โข Web scraping (Playwright, Selenium, Request with headers/cookies) Examples of scraped services: Telegram, Instagram, Google, Google Maps, LinkedIn, Twitter... โข API interactions โข Reading files in various formats: JSON, CSV, text, Excel Data Processing: โข Cleaning and processing data with Pandas/Polars/Apache Spark โข Storage in suitable databases: MySQL, PostgreSQL, InfluxDB & Neo4J โข Or data wharehouses : BigQuery, Snowflake โข Dbt, Airtable, Airflow, Pyspark, Kafka Cloud Deployment: โข GCP / AWS ๐ Application of advanced machine learning/AI/LLM models to extract relevant insights. โข XGBoost / LightGBM for 'classic' classification algorithms โข HuggingFace & Transformers for processing textual data โข LLMs/Langchain for Question Answering with a database or building chatbots โ๏ธ Deployment of fast and reliable APIs in the cloud. โข Flask, FastAPI, Dash, or Streamlit โข Docker / Kubernetes โข Apache druid ๐ Trading indicators computing, strategies backtesting and live orders execution on various exchanges โข Custom indicators going from candles and moving averages signals to NLP applied to social media posts. โข Implementation of pre-defined strategy or machine learning model training in order to estimate the best strategy given a set of indicators and dates of entry/exit. โข Spot/future/margin orders on exchange or you choice, CEX, DEX ... ๐ผ Diverse Experiences: โข Blockchain data analysis โข Process automation, especially in trading and financial analysis โข Business lead generation through social media scraping โข Cloud infrastructure cost estimation ๐ Commitment to quality and client satisfaction. โข Documented & well commented code, including strong typing, docstrings and pep8 compliance. โข CI/CD - Git hooks Contact me to discuss how we can collaborate to achieve your goals !Ethereum
Data ProcessingAPIAlgorithm DevelopmentScriptingGoogle Cloud PlatformAPI DevelopmentData ScrapingData MiningFlaskScrapyMachine LearningData SciencePythonNatural Language Processing - $55 hourly
- 5.0/5
- (14 jobs)
๐ TOP 10% of Upwork Agencies ๐ฏ Job Success โญ๏ธ 5-Star Rating ๐ Hackathon winners ๐/๐ Smart Contracts Rating Audited by Hacken โ โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ "We look forward to continuing our collaboration on the next phase! Yevhen, Dexola, and the rest of the team have been an absolute pleasure to work with. Very knowledgeable and responsive, would highly recommend!" โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ "It was a pleasure working with Yevhen. He is highly skilled and very professional. Will definitely work with him again. Highly recommended." As a CTO with over 10 years of experience and 45 blockchain-based projects completed, I have a proven track record in delivering high-quality, scalable, and secure web solutions. My expertise lies in blockchain and Web3 technologies. I am passionate about building innovative blockchain and Web3 products that solve real-world problems. Furthermore, I am committed to working closely with my clients to understand their needs and ensure that their projects are a success. ๐ Blockchain & Web3 Development: - DAO, DeFi and GameFi solutions - EVM Chain (Ethereum/ETH) - Solana - Solidity, Rust ๐ Smart Contracts: - NFT Smart Contract - Staking, Minting, Airdrops - Security Smart Contracts Audit ๐ Full-Stack Development - Node.js, React.js, web3.js, Vue.js, TypeScript etc. - API Integration - Building & Deploying Scalable and Secure Applications ๐ Trading & Automation: - Decentralized Exchange (DEX/CEX) - Trading Bots (bonding curve keys, volume bot, telegram bot) - Crypto Casinos ๐ Integration & Bridges: - Wallet Integration (WalletConnect, Coinbase Wallet, etc.) - Blockchain Bridges โ๏ธ Proven success in delivering projects on time and within budget ๐ Excellent communication and interpersonal skills Let's hop on a call and discuss how I can make your project happen.Ethereum
AI ChatbotBlockchain, NFT & CryptocurrencyCryptocurrencyReactEthers.jsWeb3DeFiBlockchainSmart Contract DevelopmentSolanaSolidityNode.jsSmart Contractweb3.js - $50 hourly
- 5.0/5
- (6 jobs)
I've been working on Blockchain-related projects since 2019. Besides that, I've been doing back-end / embedded / system software development since 2011. I designed and develop many back-end applications for Windows and Linux Platform. Major programming languages I've used are Solidity/Solana(Rust)/Web3/JavaScript/Go-lang/C/C++, plus few popular scripting languages. I've also experienced Truffle, Hardhat, Ganache, STL, Boost, multithreading, IPC, Socket Programming, etc My areas of expertise: โ Token Implementation: ERC-20, ERC-721, ERC-721A, ERC1155, ERC-1363, Web3 โ Smart contract security audit (EVM and SOLANA) โ Block-chain dApps: Defi, Metaverse, NFT, DAO, IDO LaunchPad, Staking, Lending/Borrow. โ Payments integrations with Stripe, Coinbase (Bitcoin, Ethereum, etc.) โ Block-chain Plugin: metamask, trustwallet, Binance Wallet, etc. โ VoIP Software: SIP, H.323, Kamailio, OpenSIPS, rtpengine, RTPProxy, FreeSWITCH, Asterisk. โ Networking firewall designing (IPTables, DHCP, PPPOE, STUN, ICE.) Programing Language: Solidity, Solana(Rust), Vyper, Web3, JavaScript, Go-Lang, C, C++ Blockchain Stack: Web3, Ether.js, Truffle, Hardhat, MetaMask/Remix, BTC, ETH, IBM Hyperledger, IPFS I really appreciate your quick response and love to discuss this project further with you.Ethereum
Blockchain DevelopmentVoIP SoftwareCryptocurrencyDAppsSolidityBlockchain ArchitectureBlockchainSmart ContractCExpressJSJavaScriptNode.jsC++ - $40 hourly
- 4.9/5
- (24 jobs)
Welcome! ๐ I'm delighted to connect with you. I bring over 9 years of expertise as a seasoned Full Stack Developer, specializing in Blockchain and Web3 development. ๐ Are you ready to elevate your web, mobile, or Blockchain projects to new heights? Here's what I bring to the table: ๐ ๏ธ Technical Skills: ============================================================================ Web: ReactJS, Angular, Next.js, Node.js, Express.js, Django, Laravel, CSS 3, HTML 5, Tailwind CSS. Mobile: React Native. Database: MySQL, MSSQL. API: Restful APIs. E-commerce: WordPress, WooCommerce, Shopify. Other: Vue.js, Nuxt.js, TypeScript, CodeIgniter, MongoDB, Ruby on Rails. DevOps: MEAN Stack, .NET Core, .NET Framework. Blockchain: Smart Contracts, Solidity, Ether.js, Web3.js, DApps. ๐ก Challenges I Solve: ============================================================================ E-commerce Website Challenges Data Complexity Seamless Blockchain Integration Mobile App Development NopCommerce Untangling User-Friendly Interface Crafting ๐ Why Choose Me: ============================================================================ 9+ years of expertise Blockchain development skills Client satisfaction focus Regular project updates Flexible availability Blockchain Development Services: ============================================================================ ERC-20, Solidity, Smart Contract development Blockchain-based services: Ethereum, EOS, Other coins Cryptocurrency & Arbitrage/Market Making Bot Development Wallet Integration: Electrum, Parity, Mist, Metamask, MyEtherWallet API Development: blockchain.info, poloniex.com, bitfinex.com, hitbtc.com, coinbase.com, kraken.com, cex.io Technology Experience: ============================================================================ Nodejs, Blockchain Development Stack Solidity, Parity, EOSIO, Trezor, Ledger, MetaMask/MIST/Remix, BTC, Electrum, ETH DApps (decentralized applications) ERC20 tokens development EOS Smart Contract development Distributed Ledger technology Code versioning tools: Git, Jira, Bitbucket, SVN Node JS & Python Scripting languages, REST/JSON API integration Agile and DevOps environment, Elliptic Curve Cryptography(ECC), P2P Networking. ๐ฅ Previous Experience: ============================================================================ 50+ successful projects Worked with renowned clients Extensive Mobile and Decentralized app development ๐ค Let's Work Together: For web, mobile, or Blockchain projects, let's connect! I prioritize outstanding results and client satisfaction. Excited for a stable and long-term cooperation! ๐ฌ Contact Me: Message me to discuss your project or schedule a consultation. Ready to contribute to your project's success! ๐Ethereum
BitcoinAndroid App DevelopmentBlockchainMobile App DevelopmentFlutteriOSIonic FrameworkAmazon Web ServicesNode.jsPythonAngularJS - $19 hourly
- 4.9/5
- (31 jobs)
๐ 100% JSS โญTop Rated Plus ๐ฐ๏ธ ๐๐ฏ๐๐ข๐ฅ๐๐๐ฅ๐ ๐ข๐ง ๐ญ๐ก๐ ๐๐, ๐๐๐ง๐๐๐, ๐๐, ๐๐ฎ๐ฌ๐ญ๐ซ๐๐ฅ๐ข๐, ๐จ๐ซ ๐ฉ๐ซ๐๐๐๐ซ๐ซ๐๐ ๐ญ๐ข๐ฆ๐ ๐ณ๐จ๐ง๐๐ฌ ๐ฅ GOLD MEDALIST ๐ 7+ Years of Experience โ 80+ Successful Projects ๐ 2400+ Hours of Development Work โ Guarantee of High-Quality Product Delivery ๐ Availability: 40+ hours per week ๐๐ซ๐ข๐ง๐ ๐ข๐ง๐ ๐๐ฎ๐ญ๐ญ๐ข๐ง๐ -๐๐๐ ๐ ๐๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ ๐ข๐ง ๐ ๐ฎ๐ฅ๐ฅ ๐๐ญ๐๐๐ค ๐๐๐๐ & ๐๐ฃ๐๐ง๐ ๐จ, ๐๐ฒ๐ญ๐ก๐จ๐ง ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ ๐ฐ๐ข๐ญ๐ก ๐๐ฏ๐๐ซ 7 ๐๐๐๐ซ๐ฌ ๐จ๐ ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐ I am a Senior Full Stack Developer with expertise in MERN Stack, Python (Django), and Blockchain Development. With a strong background in web and blockchain technologies, I specialize in building scalable, high-performance applications tailored to business needs. My experience spans across frontend and backend development, smart contracts, DeFi, NFT marketplaces, and enterprise blockchain solutions. What I Offer: โ Full Stack Web Development โ Expert in MERN (MongoDB, Express.js, React.js, Node.js), Python (Django, Flask), Next.js, and NestJS for building secure, fast, and user-friendly web applications. โ Blockchain Development โ Proficient in Solidity, Hyperledger, Smart Contracts, NFT Marketplaces, DeFi, and DAO development for secure and transparent decentralized applications. โ Frontend Expertise โ Skilled in React.js, Angular, and Next.js to develop interactive, high-performing UIs with seamless user experiences. โ Backend & Database Management โ Strong experience in Node.js, Express.js, Django, MongoDB, SQL, and PostgreSQL, ensuring smooth backend operations and database optimization. โ Crypto Exchange Development โ Hands-on experience in developing secure crypto exchange platforms, integrating payment gateways, and optimizing trading experiences. Why Work With Me? โ Proven Experience โ Successfully delivered multiple web and blockchain projects, ensuring reliability and efficiency. โ Scalability & Security โ Prioritizing performance, data security, and future-ready solutions. โ End-to-End Development โ From planning to deployment, I handle the complete development cycle. โ Effective Communication โ Clear project updates, smooth collaboration, and adherence to deadlines. Letโs collaborate to bring your web or blockchain project to life! ๐ Feel free to reach out, and letโs discuss how I can help. Fullstack Developer | MERN| | ReactJs| Angular | NextJS| Machine Learning| Python| Chatbot development| NodeJs | MongoDB | SQL | Express | Django| Full Stack Blockchain Developer | Hyperledger | Solidity | MERN | Python | NFT | Crypto Exchange | Smart Contracts | DeFi | DAOEthereum
DartFirebaseMobile App DevelopmentReact NativeLarge Language ModelLangChainNatural Language ProcessingOpenCVChatbot DevelopmentArtificial IntelligenceMachine LearningDjangoPythonNext.jsNode.js - $75 hourly
- 4.9/5
- (24 jobs)
Senior blockchain developer with 7+ years of experience in Web3 & a strong background in writing smart contracts. Proficient in using various blockchain technologies to create high-performance and scalable applications. In addition to my expertise, I am well-versed in Hyper ledger, EVM, Cryptography, DeFi, NFTs, Dexs, Layer 2, Bridges, Wallets, Chainlink Oracles & Liquidity Pools. Although my core expertise are in Solidity, I also have extensive experience with Javascript, GoLang & some exposure to Rust. I have designed, built, tested, deployed, and maintained high-traffic, complex smart contracts. I have designed and developed product architectures that balanced flexibility with speed & enabled rapid iteration. Technologies -Solidity, GoLang, Node.JS, Rust, Javascript, C++ -AWS & Google Cloud Certified -React Native, React.js Clean scalable Code with excellent Communication - Let's talk about your project!Ethereum
React NativeAugmented RealityUI/UX PrototypingVirtual RealityDAppsiOS DevelopmentAndroid App DevelopmentBlockchainNode.jsArtificial IntelligenceSmart ContractSolidityDeFi - $55 hourly
- 4.3/5
- (40 jobs)
Hello! I'm Arshad K., a seasoned Full Stack Developer with over 10 years of experience in delivering innovative and immersive gaming experiences. My expertise spans Casino platform development, Unity game development, and AR/VR applications, along with Blockchain integration and smart contract development. Over the years, I've honed my skills in creating engaging, high-quality casino games, cutting-edge AR/VR experiences, and integrating blockchain technologies into various applications. Here's an overview of my areas of specialization: Casino Game & Platform Development: Casino Platform Development: From building robust and scalable casino platforms to ensuring smooth user experiences and payment integration. Casino Game Development: Expertise in designing and developing a wide range of engaging casino games such as Poker,, Blackjack, Roulette, Baccarat, Dice games, Mystery Box Games, and more. Mobile Casino Games: Building optimized, high-performance mobile casino applications for iOS and Android. Lottery and Raffles Applications: Developing exciting and interactive lottery and raffle-based games with robust backend systems. Game Development in Unity & Other Engines: Unity Game Development: Leveraging Unity to create immersive, high-quality 2D and 3D games for mobile, desktop, and web platforms. AR/VR Game Development: Specializing in AR/VR experiences for MetaQuest 2, MetaQuest 3, and Vision Pro. I design and develop interactive, cutting-edge AR/VR games and applications that offer truly immersive experiences. Other Game Engines: Proficiency in Unreal Engine and Godot for advanced game development and simulation projects. Blockchain & Web3 Development: Blockchain Integration: Expertise in integrating blockchain technologies into gaming platforms, including cryptocurrency payments, smart contracts, and NFT marketplaces. Smart Contracts & dApps: Strong experience with Ethereum, TON, and other blockchain platforms to develop secure, decentralized applications (dApps) and smart contracts. Crypto Wallet Integration: Seamless integration of crypto wallets into applications, enabling secure transactions and user interaction. Additional Expertise: UI/UX Design for Gaming Platforms: Focused on crafting intuitive and engaging user interfaces for casino platforms and games. Payment Gateway Integration: Ensuring smooth and secure payment processing systems for casino and gaming platforms. Interactive Telegram Bots & Clicker Games: Experience in developing Telegram-based mini-games, including clicker games and other interactive bots. I pride myself on delivering solutions that are tailored to your unique needs, ensuring they are high-quality, engaging, and innovative. Whether you're looking for a sophisticated casino platform, a fun mobile game, or an immersive AR/VR experience, I'm committed to bringing your vision to life with cutting-edge technologies. Letโs create something amazing together! Feel free to reach out for any inquiries or project collaborations.Ethereum
UnityGatsby.jsSocket.ioMobile GameNode.jsTailwind CSSBitcoinAWS LambdaMagentoWordPressReactFigmaBoard GameCard GameGame Customization2D Game ArtMobile Game DevelopmentUX & UI DesignGame DesignUI/UX PrototypingGameOnline Gambling WebsiteGame Development - $35 hourly
- 5.0/5
- (1 job)
๐ Greetings! ๐ I'm Faheem, an experienced ๐ช๐ฒ๐ฏ ๐๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐ฒ๐ฟ and ๐๐น๐ผ๐ฐ๐ธ๐ฐ๐ต๐ฎ๐ถ๐ป ๐๐ป๐๐ต๐๐๐ถ๐ฎ๐๐ with over ๐ด+ ๐๐ฒ๐ฎ๐ฟ๐ of specialized expertise in ๐๐ฎ๐๐ฎ๐ฆ๐ฐ๐ฟ๐ถ๐ฝ๐ (๐ฅ๐ฒ๐ฎ๐ฐ๐๐๐ฆ, ๐ก๐ผ๐ฑ๐ฒ๐๐ฆ, ๐๐๐ ๐๐ฆ๐ฐ๐ฟ๐ถ๐ฝ๐), ๐ช๐ฒ๐ฏ๐๐๐๐ฒ๐บ๐ฏ๐น๐, ๐ฅ๐๐๐, ๐ฆ๐ผ๐น๐ถ๐ฑ๐ถ๐๐, ๐๐ผ๐น๐ฎ๐ป๐ด, ๐๐ฟ๐ฎ๐ฝ๐ต๐ค๐, and much more. When it comes to web development, I have a remarkable ability to create stunning websites and deliver top-notch services. From crafting custom themes that perfectly suit your vision ๐จ๐ช to effortlessly tackling complex projects, my diverse portfolio spans various business types: ๐๏ธ E-commerce shops ๐ Review-based systems ๐ Custom directories ๐ Events planners ๐ฎ Game scoring systems ๐ข Real estate ๐ฅ Personal portfolios ...and many more! But that's not all! My true passion lies in the blockchain world, where I excel as a ๐๐๐น๐น ๐ฆ๐๐ฎ๐ฐ๐ธ ๐๐น๐ผ๐ฐ๐ธ๐ฐ๐ต๐ฎ๐ถ๐ป ๐๐ป๐ด๐ถ๐ป๐ฒ๐ฒ๐ฟ with over ๐ฑ+ ๐๐ฒ๐ฎ๐ฟ๐ of experience! ๐ Specializing in Bold (sans): ๐๐ฎ๐ฐ๐ธ๐ฒ๐ป๐ฑ ๐ฑ๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐, ๐๐ฎ๐๐ฎ๐ฏ๐ฎ๐๐ฒ ๐ผ๐ฝ๐๐ถ๐บ๐ถ๐๐ฎ๐๐ถ๐ผ๐ป, ๐ฆ๐ฒ๐ฟ๐๐ฒ๐ฟ ๐๐ฒ๐๐๐ฝ, ๐ช๐ฒ๐ฏ ๐ฏ.๐ฌ, ๐๐ฒ๐๐ข๐ฝ๐, ๐ฐ๐๐๐๐ผ๐บ ๐ฏ๐น๐ผ๐ฐ๐ธ๐ฐ๐ต๐ฎ๐ถ๐ป ๐ฑ๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐, ๐ฎ๐ป๐ฑ ๐๐ฃ๐ ๐ถ๐ป๐๐ฒ๐ด๐ฟ๐ฎ๐๐ถ๐ผ๐ป with other services. My expertise covers a wide array of technologies: ๐จ JavaScript (ReactJS, NodeJS, ECMAScript) ๐ WebAssembly ๐ Rust ๐ Solidity ๐ Golang ๐ GraphQL ๐ PostgreSQL ๐ LevelDB, RocksDB ๐ PlayCanvas, WebXR ๐ Blockchain Protocols ๐ Copy trading protocols and architecture ๐ Smart Contract Audit ๐ Exchange development (CEX) ๐ Decentralized exchange development (DEX) ๐ Arbitrage and Trading bots development ๐ ICO/IDO/IBCO/LBP/IFO ๐ Flash loans bots ๐ Front-running, snipe, and sandwich bots ๐ TradingView configuration ๐ Meta, Metaverse, DeFi, NFT, GameFi I've contributed to notable projects like ๐๐น๐ฟ๐ผ๐ป๐ฑ (๐๐๐๐), where I successfully launched an ๐๐๐ข and developed a cutting-edge sharding system. ๐ Additionally, I've been involved in building and auditing secure payment gateways for projects like ๐๐ฟ๐๐ฝ๐๐ผ ๐ช๐ฎ๐น๐น๐ฒ๐ ๐๐ฟ๐ฒ๐ฎ๐ฑ (๐๐ฅ๐) and ๐๐ผ๐ถ๐ป๐ฃ๐ฎ๐๐บ๐ฒ๐ป๐๐, ensuring the safe storage of cryptocurrency funds. With hands-on experience in various services and technologies like ๐๐ช๐ฆ, ๐๐ถ๐ป๐๐ , ๐๐ผ๐ฐ๐ธ๐ฒ๐ฟ, ๐๐ฒ๐ป๐ธ๐ถ๐ป๐, ๐๐ถ๐, and more, I guarantee the stability and security of your blockchain applications. ๐ก๏ธ So, whether you're looking for a top-notch Full Stack Developer to create visually appealing and responsive websites, or a Blockchain Expert to revolutionize your decentralized projects, I'm your go-to professional! ๐ Let's connect over Zoom and discuss your project further. ๐๐Ethereum
MongoDBAmazon Web ServicesWeb3SolidifyDeFiBack-End DevelopmentBlockchainReactDockerNFTBlockchain ArchitectureSmart ContractNode.jsJavaScript - $60 hourly
- 5.0/5
- (37 jobs)
๐ Hackathon + Grant Winner (Starknet Thailand 2024, A51.Finance) โจ Praised by Kerberus.com founder (Top 10 PayPal Hacker, Dropbox Hall of Fame) ๐ฅ Top 1% EVM + Solana Talent on Upwork ๐ $33M+ TVL | 28+ DApps Built | 7+ Token TGEs ๐ Hey! Iโm Sami โ a full-stack product engineer specializing in Blockchain, AI, and rapid product development. I take your app from idea to working product in days, not months, starting at just $500. From tokenized protocols and smart contract systems to GPT-powered apps and real-time dashboards โ I help startups and teams ship fast and scale smart. ๐ What I Do Best ๐ง MVPs & Full App Builds Rapid prototyping with tools like Replit, Cursor, and Framer โ or built from scratch with production-grade stacks. ๐ง AI-Powered Systems OpenAI/GPT integrations, vector DBs, agents, internal copilots, smart automation, and analytics bots. ๐ช Blockchain Engineering Smart contracts, token launches, DeFi protocols, liquidity automation, staking, cross-chain messaging, and NFT infra. ๐ Dashboards & Internal Tools Admin panels, analytics dashboards, Airtable-style views, and operational control centers. ๐ฆ Full-Stack Architecture Frontend, backend, infra, and on-chain โ fully integrated and ready to deploy. ๐ Tech Stack Frontend: React, Next.js, TypeScript, Tailwind, Framer Backend: Node.js, NestJS, Express, Golang AI/ML: OpenAI, LangChain, Pinecone, Vercel AI SDK Blockchain: Solidity, Rust, Cairo, Foundry, Hardhat, Web3.js, Ethers.js Infra & Cloud: Supabase, Vercel, AWS, Docker Data: PostgreSQL, MongoDB, Redis, Dune, The Graph ๐งญ Ecosystems & Protocols Chains: Ethereum, Solana, Arbitrum, Optimism, zkSync, Starknet, BNB, Polygon Cross-Chain: LayerZero, Wormhole, Axelar, ThorChain DEXs: Uniswap, Curve, PancakeSwap, Raydium, 1inch, Jupiter Token Standards: ERC-20, ERC-721, ERC-1155, SPL Enterprise: Hyperledger Fabric, Quorum ๐ง I Can Help You With... Blockchain architecture & protocol design Tokenomics, liquidity strategies, and yield mechanisms Smart contract audits and gas optimization AI feature planning and system integration Product scoping, dev workflows, and fast iterations Shipping your idea to users or investors in record time ๐ฉ Letโs Build Something Great โ and Fast. Click "Invite" and tell me what youโre working on. Iโll bring it to life.Ethereum
Crypto WalletTokenomicsMERN StackNFT MarketplaceNFT MintingDAppsSmart Contract DevelopmentCryptocurrencyWeb3Blockchain DevelopmentBlockchain, NFT & CryptocurrencyDeFiSoliditySolana - $30 hourly
- 4.3/5
- (16 jobs)
Blockchain - Smart Contracts - DEFI Apps - DApps - Wallets - Crypto Exchange - Trading Bots Are you looking for a skilled and experienced Blockchain developer to bring your ideas to life? Look no further! With 10+ years of experience in developing Smart Contracts, DEFI Apps, DApps, Digital Wallets, Crypto Exchanges, and Trading Bots, I am well-equipped to handle your project. In addition to my expertise in Blockchain development, I bring a wealth of coding experience spanning over 18 years. I am proficient in technologies such as ASP.Net, .Net Core, React Native, Node.Js, and the MERN Stack. My knowledge extends to Linux, SQL, DevOps, and project management tools like JIRA, Trello, Asana, and GitHub. Throughout my career, I have had the privilege of working with high-profile clients from around the world. I have successfully delivered projects in various domains, including custom Windows application development, database application development, API development and integration, ecommerce solutions, and banking and insurance software solutions. Furthermore, I have expertise in iOS/Android app development. When you choose to work with me, you can expect professionalism and dedication. My commitment to delivering quality work sets me apart from others. Here are the traits that differentiate me as a freelancer: 1. On-time Delivery: I understand the importance of meeting deadlines and will ensure that your project is delivered promptly. 2. Open to Change and Compatibility: I am flexible and adaptable, willing to make changes and adjustments based on your requirements. 3. Honest and Open Communication: I believe in transparent communication to ensure a smooth collaboration and clear understanding of project goals. 4. Punctuality: I value your time and will always strive to be punctual in my deliverables and communication. 5. Diversity: I embrace diversity and bring a fresh perspective to every project, enabling innovative solutions. Let's connect and work together to build something great! Feel free to reach out to discuss your project requirements and how I can contribute to its success. Looking forward to collaborating with you. -- Best regards, ParryEthereum
BlockchainForex TradingReact NativeBlockchain DevelopmentBlock CreationSolidityASP.NET MVCNode.jsSmart ContractHyperledger FabricBlockchain ArchitectureMySQL - $80 hourly
- 5.0/5
- (23 jobs)
Hey there! My name is Choi and Iโm an Atlanta, USA-based full-stack developer and designer focused on building top-notch custom, responsive, and mobile-friendly sites, software, and applications. Iโve worked with clients like Red Bull, MoviePass, Unreal, Wolfgang Puck, Nobu, Ponix, Bonobos, and TB12 to deliver top-tier websites and I can help you do the same! All of my work includes the integration of search engine optimization (SEO) and conversion rate optimization (CRO). The types of clients I chose to work with are serious about results, organized, know what they want, and are open to suggestions and trust in expertise. Hereโs what my site build-out process typically looks like: 1) Discovery - Deep dive into your organization and goals. 2) Design - Create wireframe mockups, review with clients, and annotate real-time changes. I provide up to three design rounds/iterations. 3) Development - Once approved, I develop the design into functional code utilizing a CMS. 4) QA - Test the website for responsiveness and functionalities on all popular browsers and devices. 5) Launch - We are live! Clients then go through a training session on how to manage the website and I hand the keys to the site over. The types of work I usually help my clients with include: - WordPress and Webflow Website & Landing Page Development, Design & Redesign - Software Development - Web & Mobile App Development - Web3 Site Development & Deployment - Smart Contracts - 3D Interior Design Renderings - Architect & CAD Renderings The platforms and frameworks I commonly work with include: - CMS - WordPress, Shopify & WooCommerce - Polygon & Ethereum Main Net - Flutter, Django, Angular, iQuery Mobile & ReactNative Development Languages I have expertise in: - HTML, HTML5, CSS, PHP, React, SQL, Python, Java, Node, Solidity, and more. Software I use for 3D modeling include: SketchUp, AutoCAD, Blender, MAYA, and Photoshop. Looking forward to learning about your project so that we can bring it to life together! Send me an invite on Upwork to get the process started. Talk soon! ChoiEthereum
NFT MarketplaceBlockchain ArchitectureBlockchain Development FrameworkBlockchainCorporate BrandingMobile App DevelopmentWeb Application DevelopmentMobile AppJavaReactWordPressElementorSmart ContractWordPress DevelopmentBlockchain DevelopmentWeb DesignCryptocurrencyWebsite Redesign - $30 hourly
- 4.9/5
- (85 jobs)
Hello! Thanks for visiting my profile. I am a software developer who has 7+ years of experience. As a full-stack engineer with transferable skills and close attention to detail, I am able to handle projects from start to finish with minimal supervision because I have an excellent general sense of what a product should and shouldn't do. - front-end development: React/Angular/Vue, Html/CSS, Scss, Less, various CSS theme - mobile app development: React-Native/Expo/Build fire - webrtc: Jitsi/Janus/zoom - back-end development: PHP/Node/Ruby on Rails - MVC, cms: Laravel, Zend, WordPress, Woocommerce, Shopify - static site generation: Jekyll/Hugo/Gatsby/Gridsome/Hexo/Middleman - database development: MySQL, Postgres, MongoDB, SQLite, Oracle - product management, hosting: Git, Gitlab, Bitbucket, AWS, Heroku, Firebase - Blockchain: Ethereum, Stellar, Smart Contact, Dapp, ICO website Always open to learning new tech! Let's make great things based on ideas together. Looking forward good and long engagement. Thank youEthereum
HugoJekyllGatsby.jsVue.jsReact NativePHPNode.jsHTML5JavaScriptTypeScriptReact - $19 hourly
- 5.0/5
- (3 jobs)
As a Senior Blockchain Engineer with extensive hands-on experience in Solidity, Rust, and Ride, I specialize in building secure, scalable, and innovative blockchain applications across major networks like Ethereum, Solana, Polygon, Binance Smart Chain, and Waves. Over the past several years, Iโve successfully delivered end-to-end blockchain solutions including: โ Smart Contracts โ Custom Tokens & Crowdsales โ NFT Marketplaces & Utilities โ DEX/DeFi Protocols & Liquidity Pools โ Full-stack dApps โ Wallet Integrations (Custodial/Non-custodial) โ Blockchain Consulting & Audits ๐ง Core Technical Expertise: ๐ง Blockchain Development: โ Solidity, Rust, Ride (Waves) โ EVM-compatible and Non-EVM chains โ DeFi protocols, staking systems, DAO implementations โ NFT minting, metadata, royalties, and marketplaces โ Wallet, exchange, and bridge integrations โ Hyperledger & Private Blockchains โ Crowdsales, ICO/IDO Platforms ๐ป Smart Contract & DApp Expertise: โ Secure smart contract design and audit โ Frontend: React.js, Angular, Web3.js, Ethers.js โ Backend: Node.js, PHP (Laravel/Yii2/CakePHP) โ API integration: CoinPayments, MetaMask, Stripe, PayPal ๐ฆ Infrastructure & DevOps: โ AWS, Ubuntu/Linux โ Redis, MongoDB, PostgreSQL, MySQL โ CI/CD, Docker, Git ๐ฏ What You Can Expect: โ Clean, maintainable code with best practices โ Security-focused development (reentrancy, overflow protection, etc.) โ Agile communication and reliable delivery โ Scalable architecture with ongoing support & upgradesEthereum
NFT CharacterBlockchainBitcoinPythonNFT MarketplaceSolidityNFTBlockchain Architecture - $20 hourly
- 4.8/5
- (50 jobs)
I am an experienced Full Stack Blockchain Developer. Some of my other skill sets include Full Stack Web Development with MERN Stack and Django. I am also proficient with Mongodb, Postgresql ,and I have some experience using CI/CD Tools like docker and k8s. I have experience in: โ Building Web3 DApps on top of Ethereum and other EVM Blockchains โ Writing Smart Contracts in Solidity โ Writing from the Front-End with web3 to interact with them โ Deploying and developing multiple contracts on Ethereum and EVM chains Feel free to check out my portfolio to know more about my work: haidaralimasu.com Send me a message and letโs discuss your Blockchain Development needs. Haidar Ali.Ethereum
NFT MintingNFT MetadataSmart ContractSolidityTruffle - $60 hourly
- 5.0/5
- (41 jobs)
I have 1.5+ year of professional Software Development experience in startups as well as established Software Companies. I've spent considerable amount of time designing projects from scratch, solving complex problems, rapid iterative prototyping and implementing changes. I have been working with Solidity and Blockchain projects for more than a year now. I have considerable experience in the following: - Token Launches (ERC20 - Mintable - Burnable - Reflections - TxFee) - Presale / IDO / ICO for tokens via ETH/ERC20 NFTs - ERC721 / ERC1155 - Standard NFTs with Whitelist/Royalties - Presale / Public Sale - Dutch Auctions - IPFS Hosting - Dynamic NFTs (via ChainLink) All my contracts feature the following: - Latest Solidity Version - Latest contract design standards - Large number of tests to check all code - Making sure security practices are followed - Initial Testnet deployment for testing by the client - Contract verification on Etherscan (or corresponding block explorer) I have worked with the following blockchains - Ethereum - Binance Smart Chain (BSC) - Polygon (or Matic) - Tron - Harmony About my Backend Development Experience: I have single handedly managed the entire backend in the startup I worked for and have quite some experience working on NodeJS/MySQL/MongoDB tech stack.Ethereum
Distributed Ledger TechnologyBitcoinJavaBlockchainSolidityJavaScriptSpring MVCNode.jsMySQLMongoDB - $60 hourly
- 5.0/5
- (29 jobs)
๐ Hello there! I am an expert Full Stack Developer with over 10 years of experience, specializing in Python and AI/ML. My passion lies in leveraging cutting-edge technologies to create innovative and intelligent solutions. ๐ง Technical Proficiencies: Programming Languages: Python, JavaScript, Node.js, React.js, PHP AI/ML Expertise: Developing and deploying machine learning models, natural language processing, and data analysis Databases: SQL, MongoDB, Firebase Cloud Platforms: AWS, GCP, Azure ๐ Key Commitments: Crafting clean, efficient, and maintainable code. Implementing state-of-the-art AI/ML algorithms and techniques. Collaborating effectively with clients to understand their needs. Delivering solutions on time and to the client's satisfaction. ๐ง As a lifelong learner, I stay updated with advancements in technology and industry best practices. My focus on Python and AI/ML allows me to tackle complex problems and deliver intelligent, data-driven solutions. If you are looking for a reliable, skilled, and proactive professional to deliver high-quality work and innovative AI/ML solutions, feel free to contact me. Let's discuss how I can help bring your project to life! ๐ Let's build something amazing together! ๐Ethereum
APIDatabaseLarge Language ModelSolidityEmerging Tech ConsultationBlockchain DevelopmentNext.jsPostgreSQLJavaScriptGolangPythonNode.jsReactAI DevelopmentLangChain - $30 hourly
- 4.5/5
- (142 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!Ethereum
Smart Contractweb3.jsEthers.jsWeb3Blockchain, NFT & CryptocurrencyBlockchainSolidityNFT MarketplaceSmart Contract DevelopmentDAppsBlockchain DevelopmentCryptocurrencyPythonDjango - $100 hourly
- 4.9/5
- (122 jobs)
๐๐จ๐ฉ ๐% ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง ๐๐ง๐ ๐ข๐ง๐๐๐ซ | ๐๐ซ๐๐ง๐ฌ๐๐จ๐ซ๐ฆ๐ข๐ง๐ ๐๐๐๐๐ฌ ๐ข๐ง๐ญ๐จ ๐๐จ๐๐ฎ๐ฌ๐ญ, ๐๐๐๐ฅ๐๐๐ฅ๐ ๐๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ 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, Iโve partnered with clients to launch secure, scalable, and innovative blockchain applications across multiple ecosystems. ๐๐ก๐ฒ ๐๐จ๐ซ๐ค ๐๐ข๐ญ๐ก ๐๐? โข ๐๐ง๐-๐ญ๐จ-๐๐ง๐ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐: Iโm skilled in every layer of blockchain development, from designing smart contracts and DeFi protocols to launching complete dApps across EVM, Solana, Polkadot, and more. โข ๐๐ญ๐ซ๐๐ญ๐๐ ๐ข๐ ๐ ๐จ๐๐ฎ๐ฌ ๐จ๐ง ๐๐ซ๐จ๐ฐ๐ญ๐ก: 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. โข ๐๐ซ๐จ๐ฏ๐๐ง ๐๐ฎ๐๐๐๐ฌ๐ฌ ๐๐๐๐จ๐ซ๐: Iโve led numerous projects from ideation to launch, consistently achieving client objectives and ensuring scalability for future growth. ๐๐๐๐ก๐ง๐ข๐๐๐ฅ ๐๐ค๐ข๐ฅ๐ฅ๐ฌ & ๐๐ฉ๐๐๐ข๐๐ฅ๐ญ๐ข๐๐ฌ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง & ๐๐ฆ๐๐ซ๐ญ ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ โข ๐๐ญ๐ก๐๐ซ๐๐ฎ๐ฆ ๐๐๐จ๐ฌ๐ฒ๐ฌ๐ญ๐๐ฆ: Solidity, Vyper, ERC standards (ERC20, ERC721, ERC1155) โข ๐๐จ๐ฅ๐๐ง๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: Rust, Anchor Framework โข ๐๐จ๐ฅ๐ค๐๐๐จ๐ญ & ๐๐๐๐ซ ๐๐ซ๐จ๐ญ๐จ๐๐จ๐ฅ: Rust, Ink! โข ๐๐๐ซ๐๐๐ง๐จ: Plutus (Haskell), Marlowe โข ๐๐ฒ๐ฉ๐๐ซ๐ฅ๐๐๐ ๐๐ซ (๐๐๐ซ๐ฆ๐ข๐ฌ๐ฌ๐ข๐จ๐ง๐๐ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง): Go, JavaScript ๐ ๐ฎ๐ฅ๐ฅ-๐๐ญ๐๐๐ค ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ โข ๐ ๐ซ๐จ๐ง๐ญ๐๐ง๐: JavaScript, TypeScript, React, Next.js, Vue.js, TailwindCSS, Bootstrap โข ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง ๐๐ข๐๐ซ๐๐ซ๐ข๐๐ฌ: Web3.js, Ethers.js, Solana Web3.js โข ๐๐๐๐ค๐๐ง๐ & ๐๐๐: Node.js, Python, Go, Rust, C++, GraphQL, Express.js, Flask ๐๐จ๐๐ข๐ฅ๐ & ๐๐๐ญ๐๐๐๐ฌ๐ ๐๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง๐ฌ โข ๐๐จ๐๐ข๐ฅ๐: Kotlin/Java (Android), Swift (iOS), React Native โข ๐๐๐ญ๐๐๐๐ฌ๐๐ฌ & ๐๐ญ๐จ๐ซ๐๐ ๐: PostgreSQL, MySQL, MongoDB, Prisma, IPFS ๐๐ง๐๐ฎ๐ฌ๐ญ๐ซ๐ข๐๐ฌ ๐๐๐ซ๐ฏ๐๐ From DeFi and NFTs to enterprise solutions, I work across various industries, customizing each project to meet specific client needs and industry demands. Letโs discuss how we can leverage blockchain to make your vision a powerful reality. Whether itโs a new dApp, DeFi protocol, or enterprise-grade solution, Iโm here to bring your ideas to life with technical excellence and strategic foresight.Ethereum
SolanaFront-End DevelopmentNext.jsAPI DevelopmentSolidityBlockchainWeb DevelopmentRustCryptocurrencySmart ContractBlockchain, NFT & CryptocurrencyDAppsBlockchain DevelopmentReact - $50 hourly
- 5.0/5
- (105 jobs)
Over the last 12 years, I have evolved into a trusted ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐๐ซ, ๐๐ซ๐๐๐ข๐ง๐ ๐๐จ๐ญ & ๐๐๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง ๐ฌ๐ฉ๐๐๐ข๐๐ฅ๐ข๐ฌ๐ญ, completing over 200 high-quality projects. I started as an Automation Engineer and expanded into Trading bot and Smart Contract development, & worked very closely with DeFi protocols, NFT platforms, and robotic trading systems. With my experience, I have learned that gas-optimized contracts and precise automation logic are essential for scalable, cost-effective solutions. Today, I lead a strong team of 40 professionals in Blockchain, AI, FinTech, and automation. My expertise spans smart contract development for Ethereum, BSC, Polygon, Solana (using Solidity and Rust), decentralized exchange systems, and AI-powered trading bots for both DEX and CEX. Additionally, I build robust web automation systems, using tools like Selenium, Puppeteer, API integrations, and RPA to handle data extraction, workflow optimization, and task automation. And when I am off the time, youโll find me cradling my guitar, pouring my soul into each chord. ๐๐ซ๐๐๐ฌ ๐จ๐ ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐ โ ๐๐ฆ๐๐ซ๐ญ ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ & ๐๐จ๐ฅ๐ข๐๐ข๐ญ๐ฒ/๐๐ฎ๐ฌ๐ญ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ (Ethereum, BSC, Polygon, Avalanche, Solana) โ ๐๐๐ ๐ข & ๐๐๐ ๐๐ซ๐๐ก๐ข๐ญ๐๐๐ญ๐ฎ๐ซ๐: Staking, yield farming, liquidity pools, tokenomics โ ๐๐ ๐ ๐๐ฅ๐๐ญ๐๐จ๐ซ๐ฆ๐ฌ & ๐๐๐ฉ๐ฉ๐ฌ: Minting, marketplaces, whitelists โ ๐๐๐/๐๐๐ & ๐๐๐ฅ๐ฅ๐๐ญ ๐๐ง๐ญ๐๐ ๐ซ๐๐ญ๐ข๐จ๐ง: Secure exchange systems and multi-chain wallets โ ๐๐ซ๐๐๐ข๐ง๐ ๐๐จ๐ญ๐ฌ & ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง: High-frequency bots, arbitrage, sniping, mempool monitoring, MT4/MT5 bots, AI-enabled trading ๐๐๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง & ๐๐ซ๐จ๐๐๐ฌ๐ฌ ๐๐จ๐ญ๐ฌ: Data scraping, browser automation, API pipelines, RPA workflows ๐๐๐ซ๐ฏ๐ข๐๐๐ฌ ๐ ๐๐ซ๐จ๐ฏ๐ข๐๐ โ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง & ๐๐ฆ๐๐ซ๐ญ ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ๐ฌ: Custom contracts, audits, token launches (ERCโ20/721/1155) โ ๐๐๐ ๐ข & ๐๐ ๐ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: Full-stack solutions for decentralized platforms โ ๐๐ฎ๐ฌ๐ญ๐จ๐ฆ ๐๐ซ๐๐๐ข๐ง๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง / ๐๐ซ๐๐๐ข๐ง๐ ๐๐จ๐ญ ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ: Bots for HFT, arbitrage, sniping, front running, market-making, and AI-enabled trade strategies โ ๐๐๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง & ๐๐๐ซ๐ข๐ฉ๐ญ๐ข๐ง๐ : Tailored solutions for scraping, workflow automation, RPA, and scheduling โ ๐ ๐ฎ๐ฅ๐ฅ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง ๐๐๐จ๐ฌ๐ฒ๐ฌ๐ญ๐๐ฆ๐ฌ: From backend services to frontend Web UIs and chatbots ๐๐๐๐ก ๐๐ญ๐๐๐ค โ ๐๐ฅ๐จ๐๐ค๐๐ก๐๐ข๐ง & ๐๐ซ๐๐๐ข๐ง๐ ๐๐จ๐ญ๐ฌ: Solidity, Rust, Web3.js, Web3.py, Truffle, Hardhat โ ๐๐ซ๐๐๐ข๐ง๐ ๐๐จ๐ญ๐ฌ: Python, Node.js, Solidity, Rust, Web3.js, Web3.py, Truffle, Hardhat, MT4/MT5 api, uniswap v2 library, uniswap v3 library, โ ๐๐๐ ๐๐ฎ๐ญ๐จ๐ฆ๐๐ญ๐ข๐จ๐ง: Selenium, Puppeteer, BeautifulSoup, Scrapy, REST/SOAP APIs, RPA frameworks โ ๐๐จ๐จ๐ฅ๐ฌ & ๐๐ข๐๐ซ๐๐ซ๐ข๐๐ฌ: Smart contract audit tools, wallets (MetaMask, Ethers.js), data pipelines ๐๐๐ฑ๐ญ ๐๐ญ๐๐ฉ๐ฌ Ready to build your Web3 or automation project with confidence? Whether it's launching a DeFi protocol, deploying a DEX, creating AI-powered trading bots, or automating business workflows, I'm here to deliver robust and scalable solutions. ๐๐จ๐ง๐ญ๐๐๐ญ ๐ฆ๐ ๐ญ๐จ๐๐๐ฒ to get started. Your next-gen blockchain and automation system awaitsEthereum
PythonForex TradingScriptingBot DevelopmentAutomationAI BotJavaScriptRustSmart ContractBlockchain DevelopmentAPIBlockchainCryptocurrencyFull-Stack Development - $20 hourly
- 4.8/5
- (85 jobs)
Hi there, I am a professional senior developer and have been running a Digital Transformation & Product Engineering company for over 10+ years. we serve over 100 clients globally and have successfully completed more than 81 projects across various industries. *๏ธโฃ๐๐ก๐๐ญ ๐๐ ๐๐๐๐๐ซ: End-to-End App Development Solutions Specialized Teams for Each Technology Stack Subscription Services and Loyalty Point System Features *๏ธโฃ๐๐ฎ๐ซ ๐๐ฑ๐ฉ๐๐ซ๐ญ๐ข๐ฌ๐: Mobile App Development: Flutter, React Native, iOS (Swift, SwiftUI), Android (Kotlin) Web Development: MERN Stack (MongoDB, Express.js, React, Node.js), PHP, VueJS, Laravel, Angular, HTML/CSS Cross-Platform Development: Ionic Cloud Services: AWS, Google Cloud, Firebase (Authentication, Analytics, API Development, Cloud Functions, Serverless Computing) *๏ธโฃ๐๐๐ฒ ๐๐ข๐ ๐ก๐ฅ๐ข๐ ๐ก๐ญ๐ฌ: Over 100 global clients More than 81 successfully completed projects Skilled and knowledgeable developers in their respective domains Focus on scalable, secure, and high-quality solutions *๏ธโฃ๐๐๐๐๐ง๐ญ ๐๐ซ๐จ๐ฃ๐๐๐ญ๐ฌ: Contents.com: A web portal for content generation, secured million-dollar funding Tripster: Travel-cum-social networking app LookLad: E-commerce portal for local businesses Funyub: A comprehensive camp information website in the USA ScoreYourRun: A social network for cricket enthusiasts Fast2sms: Bulk SMS service provider ๐๐ซ๐๐ง๐ฌ๐๐จ๐ซ๐ฆ ๐๐จ๐ฎ๐ซ ๐๐ข๐ฌ๐ข๐จ๐ง ๐ข๐ง๐ญ๐จ ๐ ๐๐ญ๐ฎ๐ง๐ง๐ข๐ง๐ ๐๐ฉ๐ฉ โ ๐๐๐ญ ๐๐ญ๐๐ซ๐ญ๐๐ ๐๐จ๐ฐ! Looking forward to discussing your project in detail.Ethereum
Internet of ThingsCryptocurrencySmart ContractBlockchainPHPMobile App DevelopmentNode.jsReactAgent GPTAI ChatbotChatGPT API IntegrationAI DevelopmentAI BotAI Agent Development Want to browse more freelancers?
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