Hire the best Blockchain developers

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Clients rate Blockchain developers
Rating is 4.7 out of 5.
4.7/5
based on 3,380 client reviews
  • $150 hourly
    I am a cybersecurity professional with a Master's Degree in Cyber Operations and two years of work experience in cybersecurity research and development at a world-class R&D laboratory. In that job, I gained experience in network traffic analysis, malware analysis, and cryptography. For over two years, I have worked as a freelancer, providing consulting, content development, and course creation in cybersecurity and blockchain security. I specialize in development of technical content (blogs, whitepapers, case studies, and courseware) in the field of cybersecurity. I currently hold the Certified Ethical Hacker and Certified Blockchain Security Professional certifications.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Reverse Engineering
    Cryptocurrency
    Cryptography
    Information Security
  • $70 hourly
    Hello - My name is Tom. I’m a freelance software engineer based in Ireland. I mostly work with entrepreneurs and startups, helping them shaping their digital products and bringing them to the market. I do not only deliver high quality code, but also have a product oriented approach and I value strategy and design as much as I do good code. I do have extensive know-how about web development and deployment, Blockchain, Shopify, Web scraping, automation services and much more. I believe I will be a good team member to work with, considering my experience and know-how in the field. I personally have 8+ years of experience in the industry and my most recent, ongoing work is micro-service web applications using node, Express, Next, Mongo and AWS If you want to know more about me, my workflow or discuss the project details, please don't hesitate to get in touch. Regards Tom C
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Blockchain Development
    Machine Learning
    AI Platform
    Python
    Django
    Vue.js
    Node.js
    React
    web3.js
    JavaScript
    DApps
    Solidity
    Ethereum
    Smart Contract
    Cryptocurrency
  • $100 hourly
    I've been building unique software solutions since 2020. I love building new projects from the ground up and contributing to existing projects that make a difference in the world. I believe in quality solutions, good communication, and test driven development. 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗜 𝗖𝗮𝗻 𝗣𝗿𝗼𝘃𝗶𝗱𝗲 - 𝙎𝙢𝙖𝙧𝙩 𝘾𝙤𝙣𝙩𝙧𝙖𝙘𝙩𝙨: I can provide smart contracts for ERC20/ERC721 tokens, NFT Marketplaces, Physical Goods Marketplaces, and Databases that use a combination of Solidity and IPFS for a truly decentralized backend - 𝘾𝙧𝙮𝙥𝙩𝙤 𝙒𝙖𝙡𝙡𝙚𝙩𝙨: I can build crypto wallets that take a simple seed phrase and turn it into blockchain address with full payment functionality - 𝘽𝙡𝙤𝙘𝙠𝙘𝙝𝙖𝙞𝙣 𝙏𝙧𝙖𝙘𝙠𝙞𝙣𝙜 𝙖𝙣𝙙 𝘼𝙣𝙖𝙡𝙮𝙨𝙞𝙨: I love tracking addresses and parsing through blockchain history to provide real answers to complicated questions - 𝘼𝙪𝙩𝙤𝙢𝙖𝙩𝙚𝙙 𝘿𝙖𝙩𝙖 𝙍𝙚𝙥𝙤𝙧𝙩𝙞𝙣𝙜: I can build software that automatically takes your raw data and turns it into a human readable spreadsheet... I can even have a bot deliver your spreadsheet for you! - 𝙒𝙚𝙗 𝙎𝙘𝙧𝙖𝙥𝙞𝙣𝙜: Extract valuable data in an efficient manner - 𝙏𝙚𝙘𝙝𝙣𝙞𝙘𝙖𝙡 𝘼𝙧𝙩𝙞𝙘𝙡𝙚𝙨/𝘿𝙤𝙘𝙪𝙢𝙚𝙣𝙩𝙖𝙩𝙞𝙤𝙣: How-To Guides and Software Docs (with code examples) in pretty much any format you could ever want - 𝙏𝙧𝙖𝙙𝙞𝙣𝙜 𝘽𝙤𝙩𝙨: Turn your manual trading strategy into an automated powerhouse! - 𝙁𝙪𝙡𝙡 𝙎𝙩𝙖𝙘𝙠 𝙎𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨: I can give your app a custom frontend using JavaScript/React, HTML and CSS - 𝘾𝙪𝙨𝙩𝙤𝙢 𝙎𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨: Need something that's not listed above? Send me a message and we'll talk! 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲 - 𝘾𝙪𝙨𝙩𝙤𝙢 𝙎𝙤𝙛𝙩𝙬𝙖𝙧𝙚: You have a unique problem and it requires a unique solution - 𝙌𝙪𝙖𝙡𝙞𝙩𝙮: You care about the quality of your project or product and you want things handled with proper time and care - 𝙏𝙚𝙨𝙩 𝘿𝙧𝙞𝙫𝙚𝙣 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙢𝙚𝙣𝙩: You believe that software products should be properly planned and tested before hitting production - 𝙋𝙚𝙧𝙨𝙞𝙨𝙩𝙚𝙣𝙘𝙚: You want someone who attacks a problem from every angle and does not believe in the phrase, "It can't be done" 𝗠𝘆 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 - Python - Rust - JavaScript - Julia - C++ - Solidity Take a look at some of my reviews below to see what other clients have said!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Solidity
    Ethereum
    Bitcoin
    Data Extraction
    Julia
    Writing
    Content Creation
    Software Documentation
    JavaScript
    React
    C++
    HTTP
    Rust
    Python
  • $20 hourly
    ■ Programming languages: Java SE/EE, Spring (MVC,Boot,IOC), JDBC, SQL, Object-Oriented Programming (OOP), JSP,Node,Soldity,Javascript, Angular,React, ■ Web and Mobile Automation tools: Java, Selenium WebDriver, Spring MVC, Maven, TestNG/JUnit, Firebug, Appium, ADB, UIAutomator; ■ Webservers: Tomcat,GlassFish,Oracle WebServer; ■ Good knowledge of Java programing patterns; ■ Performance/Load tools: Jmeter; ■ Test Environments: Local, Grid, BrowserStack, Sauce Labs, AWS Farm Devices, Docker; ■ Web programming languages/technologies: HTML, Angular ,React, CSS, JavaScript, XPath, XML, JSON; ■ IDE: Eclipse; ■ CI: Jenkins(Pipelines); ■ Control version system: GIT, SVN; ■ API: SOAP, REST; ■ Issue/Story Trackers: Jira, Redmine, Track Studio, HPQC, Rally; ■ OS: Windows XP/7/8.1/10, Linux Cent OS/Ubuntu, Android, IOS, (VMware Workstation); ■ MS Office;
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Spring Boot
    Hibernate
    Java Persistence API
    DApps
    Java
    Ethereum
    Blockchain Architecture
    Node.js
    IBM Blockchain
    Solidity
    web3.js
  • $55 hourly
    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 =)
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Web Development
    RESTful Architecture
    Angular
    Android
    Raspberry Pi
    Django
    React
    Machine Learning
    JavaScript
    TensorFlow
    Python
  • $35 hourly
    🌟Top Rated Data Scientist | 🌟Machine Learning/ Deep Learning Expert | 🌟 Full Stack Python Developer Expert Machine Learning Engineer with a demonstrated history of designing production-level ML solutions. Farhan has a Number of Years of experience in creating Data Science Solutions and creating Machine Learning Model Using Python. As a Senior Lead Developer, he has various experiences involving the development of scalable and State-of-the-Art Data Science systems and the Internet of Things. His experience is in hands-on product development and implementation of data-driven products in the Computer Vision and Natural Language Processing domain, using state of the art deep learning algorithms. He has experience working in an international environment and leading cross-cultural teams, and the ability to communicate fluently and clearly with team members, customers, and stakeholders. Farhan proposes modern and dynamic solutions to my clients for their business goals, and guide them throughout the journey to minimize the cost and maximize the output. Elderly care Robot for which he has worked to develop its brain is in trials at leading care centers in Asia and now is raising millions of dollar as Series A funding. ☑ His Work Experience includes: 💎 Full Stack Python Development (4+ Years) ✅ Machine Learning | Deep Learning ✅ Natural Language Processing(NLP) ✅ Computer Vision(CV) ✅ Time Series Analysis ✅ Data Analysis ☑ Tools & Technologies: ✅ Python Backend Development Includes: 🔸Django, Django Rest Framework, Flask 🔸RESTful APIs 🔸Integrate Third-Party APIs 🔸Social Authentications like Google, Facebook, LinkedIn. 🔸Customized Admin dashboard 🔸User management and Custom Users 🔸User authentications and permissions 🔸Payment Gateway integration 🔸Charts, Graphs, Maps, Auto E-mail sending ✅ Industries that I worked with so far: 🔸E-Learning Platforms 🔸E-Commerce Web App 🔸Portfolio/Business websites 🔸Hospital/Medical Management Systems 🔸Fitness/Sports Web App 🔸Blogging ✅Machine Learning Languages C++, Java, Python, R ✅Artificial Intelligence Skills 🔸Supervised/Unsupervised/Semi-Supervised Technqiues 🔸Classical and Deep Computer Vision Algorithm ⠀ 🔸 Natural Language Processing/Natural Language Understanding ⠀ 🔸 Edge-AI: Edge-Device Optimization, Jetson Series, Arduino, Raspberry Pi, Neural Compute Stick. ⠀ 🔸 Image Processing and Deep Learning ⠀ 🔸 Fast Neural Networks ⠀ 🔸 Artificial Neural Networks (including DNN, CNN, FCNN, RNN, LSTM, GAN, VAE, etc.) ✅Tools and Technologies 🔸 Deep Learning/Machine Learning Pytorch, TensorFlow, Keras, scikit-learn, TensorRT, Weka, mxnet 🔸 Computer Vision OpenCV, 🔸 Natural Language Processing NLTK, SpaCy 🔸Data Manipulation Pandas, NumPy, Apache Spark 🔸Cloud AI Azure Machine Learning, Azure Cognitive Services, AWS SageMaker and GCP ✅Machine Learning Techniques Gradient Boosting, Random Forest, Logistic Regression, Deep Belief Network, Decision Trees, Linear Regression, Bayesian Statistics, Autoencoders, Word Embedding, Support Vector Machine, Classification, Principal Component Analysis, Generative, Anomaly Detection 🔵🔵 Let's Connect and build the Next AI/ML or Python solution for you!! 🔵🔵 🌟 What My Clients Say about me: 🌟 🔸 I needed someone to implement a very specific functionality on a website using Django. Farhan did a great job from the very beginning: he asked for a call to go through the requirement, we agreed on a delivery date and we stayed in touch during the development. After Project delivery, a few tweaks were needed and once again Farhan proved to be an excellent developer, providing reliable support and delivering a quality product. 🔸 Fast and helpful service, got what I asked for, and support to set it up. Would work with him again and again. Saved my $$$$, thank you. 🔸 Very professional approach to Creating a Machine Learning Model, clear from the first call I had with him. He was quick to understand my requirements and he correctly implemented them.
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    Trading Strategy
    Prompt Engineering
    Artificial Intelligence
    GPT-3
    Machine Learning
    PyTorch
    Deep Learning
    TensorFlow
    Neural Network
    Python
    Natural Language Processing
    Azure Machine Learning
    Amazon SageMaker
    Computer Vision
    Data Science
  • $50 hourly
    I am a senior full-stack web developer who can easily adapt to any technology required for your projects. I have proven knowledge of the requirements for web applications and try to provide the best solution for each scenario to allow your web product to grow and thrive. I earned a master's degree in Computer Science and Engineering and have since been working for software companies of all sizes from all around the globe as a freelancer. Currently, I enjoy working as a full-stack architect in PHP, JavaScript, Python projects, where my experience and my deep understanding of architecture and theory are most impactful. I am a self-driven and detail-oriented developer, focusing on quality and exceeding expectations of both internal and external clients, along with excellent communication skills and a passion for test-driven development. My skills including such as: - PHP, Codeigniter, Wordpress, Woocommerce, Shopify, Magento1/2 - Javascript, Angular.js, Node.js, Vue.js, React.js, Redux - Python / Django - MySQL, PostgreSQL, MongoDB - HTML5, CSS3, LESS, SASS, Bootstrap 3/4 - JSON, XML, REST API, Google API, AWS, Social APIs
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Vue.js
    DApps
    VYPER Software
    WooCommerce
    React
    Plugin Development
    Truffle
    WordPress
    Solidity
    JavaScript
    Ethereum
    PHP
    Node.js
    web3.js
  • $50 hourly
    Blockchain developer and defi enthusiast with over 3 years of experience in the field. With all the recent hacks happening, developing a decentralized app is a very risky proposition. You don't want an application handling millions of dollars, getting hacked due to a developer bug. This is where you need me. With a development history of over 20 products which include both DeFi dapps and NFTs, I have the required experience for this job. I would love to gain more experience in this field, by working on new and innovative projects.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Google Chrome Extension
    Algorithm Development
    Node.js
    Golang
    Cryptocurrency
    Python
    Solidity
  • $70 hourly
    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. – JavaScript (ReactJS, NodeJS, ECMAScript); – WebAssembly; – C++; – Rust; – Solidity; – Erlang; – Dart; – Golang. – GraphQL; – PostgreSQL; – LevelDB; – RocksDB. – PlayCanvas; – WebXR. – Blockchain Protocols; – Copy trading protocols and architecture; – Smart Contract Audit; – Exchange development (CEX); – Decentralized exchange development (DEX); – Arbitrage and Trading bots development; – ICO/IDO/IBCO/LBP/IFO; – Flash loans bots; – Front-running, snipe, and sandwich bots; – Wallet (flutter) development configuration; – TradingView configuration; – Meta; – Metaverse; – DeFi; – NFT; – GameFi. I've worked with the following services: – AWS (EC2, ELB, ASG, RDS, ElastiCache, S3); – AWS Serverless Fundamentals (Lambda, DynamoDB, Cognito, API Gateway); – Monitor, Trace and Audit your microservices using CloudWatch, X-Ray, and CloudTrail; – Linux, AWS, Bash & Python Scripting, Jenkins, Ansible, Docker, Kubernetes, Cloudformation, Terraform; – Sentry; – Pingdom; – Supervisor; – uWSGI; – Vagrant; – Git, CLI; – Ansible; – Apache; – Datadog; – Docker, Docker Compose; – Gunicorn; – Nginx. – CCXT; – OpenDAX; – OpenZeppelin Truffle; – MetaMask; – Ganache; – Remix IDE; – Geth; – Parity; – Web3.js – Ethers.js; – Infura; – Embark; – Brownie; – Alchemy; – Drizzle. – Bitcoin; – Lightning Network; – Ethereum Smart Contracts(ERC-20, ERC-721, ERC-223, ERC-777, ERC-1155, ERC-1337, ERC-3643 (ex-T-REX) and the ERC-1400); – Binance Smart Chain (BNB); – Cardano (ADA); – Solana (SOL); – Avalanche (AVAX); – Terra (LUNA); – Polkadot (DOT); – Polygon (MATIC); – Cosmos (ATOM); – Chainlink (LINK); – NEAR Protocol (NEAR); – Uniswap (UNI); – TRON (TRX); – Decentraland (MANA); – PancakeSwap (CAKE); – Toncoin (TON).
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Ethereum
    web3.js
    Solidity
    Blockchain, NFT & Cryptocurrency
    Smart Contract
    Blockchain Development
    Bitcoin
    Web3
    Network Architecture
    Blockchain Architecture
    Golang
    React
    JavaScript
  • $60 hourly
    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.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Blockchain Development
    Blockchain Architecture
    web3.js
    Solidity
    Smart Contract
    DApps
    React
  • $100 hourly
    Thank you for stopping by! As a computer science graduate with a Gold Medal, I have a deep passion for learning and staying up to date with the latest trends and technologies in the industry. I am constantly evolving as a student of something new all the time. My expertise lies in developing full-stack Blockchain Solutions, Mobile and Web Applications, Cloud Solutions, and active participation in research work for core computer science subjects. Here are my key skills and experience: - Developing full-stack Blockchain Solutions: I can help you with core network setup, architecture design, business logic implementation, and front-end and application design. - Developing full-stack Mobile and Web Applications: I have experience with trending stacks such as MERN and I am always eager to learn more. - Cloud Solutions: I have helped clients build their application infrastructure on both Amazon Web Services and Google Cloud Platform, providing a complete solution from ground up. - Academia: I am actively participating in research work for core computer science subjects such as Networking, Distributed Computing, and Blockchain Computing. I have also taught lectures on Blockchain Computing for various age groups. With my expertise and experience, I offer crystal-clear communication, high availability, free consultations over calls, and a friendly attitude towards my clients. Let's work together and make your project a success!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Node.js
    Blockchain Architecture
    React
    TRON
    API Development
    API Integration
    JavaScript
    Smart Contract
    Mobile App Development
    Blockchain Development
    AWS Application
    Desktop Application
  • $25 hourly
    𝐇𝐞𝐥𝐥𝐨 𝐄𝐯𝐞𝐫𝐲𝐨𝐧𝐞👋 𝐀 𝐡𝐢𝐠𝐡𝐥𝐲 𝐬𝐤𝐢𝐥𝐥𝐞𝐝 𝐚𝐧𝐝 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐝 𝐟𝐮𝐥𝐥 𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐢𝐭𝐡 𝐨𝐯𝐞𝐫 𝟓 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐢𝐧 𝐰𝐞𝐛 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭. 𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐢𝐧 𝐛𝐨𝐭𝐡 𝐟𝐫𝐨𝐧𝐭-𝐞𝐧𝐝 𝐚𝐧𝐝 𝐛𝐚𝐜𝐤-𝐞𝐧𝐝 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬, 𝐰𝐢𝐭𝐡 𝐚 𝐬𝐭𝐫𝐨𝐧𝐠 𝐟𝐨𝐜𝐮𝐬 𝐨𝐧 𝐜𝐫𝐞𝐚𝐭𝐢𝐧𝐠 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐚𝐧𝐝 𝐦𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. 𝐒𝐤𝐢𝐥𝐥𝐞𝐝 𝐢𝐧 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐢𝐧𝐠 𝐫𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐯𝐞 𝐮𝐬𝐞𝐫 𝐢𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞𝐬 𝐮𝐬𝐢𝐧𝐠 𝐩𝐨𝐩𝐮𝐥𝐚𝐫 𝐟𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 𝐥𝐢𝐤𝐞 𝐑𝐞𝐚𝐜𝐭 𝐚𝐧𝐝 𝐕𝐮𝐞, 𝐚𝐬 𝐰𝐞𝐥𝐥 𝐚𝐬 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐫𝐨𝐛𝐮𝐬𝐭 𝐬𝐞𝐫𝐯𝐞𝐫-𝐬𝐢𝐝𝐞 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐰𝐢𝐭𝐡 𝐍𝐨𝐝𝐞.𝐣𝐬 𝐚𝐧𝐝 𝐋𝐚𝐫𝐚𝐯𝐞𝐥. 𝐏𝐫𝐨𝐯𝐞𝐧 𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐭𝐨 𝐥𝐞𝐚𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐭𝐞𝐚𝐦𝐬, 𝐦𝐚𝐧𝐚𝐠𝐞 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬, 𝐚𝐧𝐝 𝐝𝐞𝐥𝐢𝐯𝐞𝐫 𝐡𝐢𝐠𝐡-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐜𝐨𝐝𝐞 𝐮𝐧𝐝𝐞𝐫 𝐭𝐢𝐠𝐡𝐭 𝐝𝐞𝐚𝐝𝐥𝐢𝐧𝐞𝐬. 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✅Frontend - JavaScript, React, Redux, Vue.js, Type Script Next.js. ✅Backend - Python/Django, Nest.js, Node.js, Express.js, Spring Boot, and Laravel ✅Database - MySQL, PostgreSQL, and NoSQL (MongoDB), Firebase, Redis, Cassandra, and Oracle. ✅Version Control - Git. ✅Cloud Deployment - Azure, AWS, Google Cloud and IBM Cloud. ✅Laravel, PHP, Yii, WordPress Plugins Development, etc. ✅Docker & Vagrant. ✅Git, GitHub, & Bitbucket. ✅Strong HTML, CSS, JavaScript, TypeScript, jQuery, & Bootstrap. ✅Digital Ocean, Heroku, Netlify, Firebase, & Rackspace. 𝐎𝐭𝐡𝐞𝐫𝐬 𝐒𝐞𝐫𝐯𝐞𝐫𝐥𝐞𝐬𝐬 (𝐥𝐚𝐦𝐛𝐝𝐚) 𝐋𝐈𝐌𝐒 (𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐨𝐫𝐲 𝐈𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐒𝐲𝐬𝐭𝐞𝐦) ✔Socket.io ✔Kaafka ✔Fedex integration ✔Auth0 ✔Okta 🚀𝐅𝐞𝐞𝐥 𝐟𝐫𝐞𝐞 𝐭𝐨 𝐝𝐫𝐨𝐩 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐟𝐨𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐪𝐮𝐨𝐭𝐞𝐬 𝐨𝐫 𝐛𝐫𝐚𝐢𝐧𝐬𝐭𝐨𝐫𝐦𝐢𝐧𝐠 𝐝𝐢𝐬𝐜𝐮𝐬𝐬𝐢𝐨𝐧𝐬. 𝐘𝐨𝐮 𝐜𝐚𝐧 𝐚𝐥𝐬𝐨 𝐞𝐱𝐩𝐥𝐨𝐫𝐞 𝐦𝐲 𝐔𝐩𝐰𝐨𝐫𝐤 𝐩𝐨𝐫𝐭𝐟𝐨𝐥𝐢𝐨, 𝐬𝐡𝐨𝐰𝐜𝐚𝐬𝐢𝐧𝐠 𝐦𝐲 𝐝𝐞𝐝𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐭𝐨 𝐡𝐢𝐠𝐡-𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐰𝐨𝐫𝐤. 𝐓𝐡𝐚𝐧𝐤 𝐲𝐨𝐮 𝐟𝐨𝐫 𝐭𝐚𝐤𝐢𝐧𝐠 𝐭𝐡𝐞 𝐭𝐢𝐦𝐞, 𝐚𝐧𝐝 𝐈 𝐚𝐦 𝐥𝐨𝐨𝐤𝐢𝐧𝐠 𝐟𝐨𝐫𝐰𝐚𝐫𝐝 𝐭𝐨 𝐜𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐲𝐨𝐮 𝐬𝐨𝐨𝐧!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    React Native
    PSD to HTML
    MERN Stack
    WordPress
    API Integration
    API
    Flask
    Web Development
    Front-End Development
    React
    Smart Contract
    Node.js
    web3.js
    Solidity
    JavaScript
  • $130 hourly
    Extensive expertise, and experience in taking idea to a deliverable product / MVP. Primarily from my experience being the technical lead at a small size venture funded start up I've had the chance to First, explore a wide variety of languages, frameworks, and technologies allowing me to have a full conceptual overview of the tools at my disposal, and their respective benefits + pitfalls, and second have the experience working with, and managing a small distributed team closely with the CEO.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Solidity
    Smart Contract
    Web Scraping
    Node.js
    React
    Golang
    Vue.js
    GPT-3
    Rust
    Next.js
    GPT-4
    ChatGPT
    Web Development
    CSS
  • $75 hourly
    My name is Jordan Murphy, I am the co-founder of Temrite, LLC, a full service custom software and web development firm. I am an experienced full-stack developer with strong business management roots. I have managed operational safety and compliance for international gold mining outfits, designed and implemented 100% sustainable BTC mining operations and effectively delivered full-stack code for everything from DEX's and DAPPs to scalable web solutions
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Blockchain Development
    DApps
    JavaScript
    Back-End Development
    UX & UI
    Django
    API Development
    Cryptocurrency
    Solidity
    Smart Contract
    Web Development
    NGINX
    API
    Python
  • $75 hourly
    Hey there, hope you are doing great. 👋 I am Saurabh Lodha and I would love to help you build your idea. Thought of trying a POC? - Reach out to me and with my customized template repositories, we can quickly put together an MVP. Have an idea and want to build and scale it to something big? - I have more than 4 years of professional development experience and have completed and contributed to some amazing projects along the way so I would love to work with you. Ever stuck in the hell of debugging or fixing something? - Reach out to me, I will always love to take a look and help you out. Want to get a consultation before building? - I have a great domain experience in Blockchain and Backend development and keep myself updated with the latest in the domain. EIPs, ERC20s, NFTs, Defi and Lending protocols, Layer2, etc. - I would be able to give you a great opinion on what you might want to try and also be able to build you an architecture for your product or a POC. - Besides having a solid understanding of the technical side of things, I love to contribute amazing ideas and always consider giving everything to the team and to the product so you could start something amazing with me onboard. In more details this is what I do to run my house - - I work on designing, developing, and testing smart contracts and have mainnet deployed contracts on multiple EVM chains. - I have a solid career in backend development and can design and develop backend services required for use cases like APIs for Dapps, Arbitrage bots for trading, monorepos, microservices, etc. - I have worked in the Defi space for the last 1.5 years and have designed DEXs, vault contracts, staking pools, and yield-bearing contracts and also contributed towards building on top of some of the biggest projects in this space. (Aave, QuickSwap, Ethalend, Dystopia). - I work on designing and developing subgraphs useful for data indexing. - I also audit Smart Contracts and work extensively on learning about Smart Contract security and vulnerabilities. - I have also developed Lottery Smart contracts, NFT Marketplaces, ERC1155 contracts, ICOs, vesting, and custom ERC20 smart contracts. - I have a good experience of website development and smart contract integration and have completed some cool React projects along the way. Combining all these, I make for a hard-working, innovative, punctual, and easy-to-work-with professional. I have good communication and leadership skills and have good experience working and shipping remotely. Having been in the Crypto space since 2019, I have the correct attitude required to build, excel and contribute in this space and love to work and build with the community. I would love to connect and discuss more, and I am always ready to give an interview about my technical skills and make a good presentation of my communication skills.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    NestJS
    Cryptocurrency
    NFT Marketplace
    Ethereum
    Blockchain Development
    Initial Coin Offering
    Solidity
    web3.js
    JavaScript
    TypeScript
    Smart Contract
    Node.js
    Blockchain Architecture
  • $64 hourly
    I've been successfully working as an expert in system and software development for the last 10+ years. My expertise spans: • Websites, Web Applications (SaaS) • Mobile Apps (IOS / Android / React Native) • Desktop Applications • Blockchain Applications During my journey, I've participated in and led a lot of exciting projects such as web platforms, mobile games, mobile applications, and blockchain applications. There are no technical challenges that I didn't solve because I love to resolve challenges and find graceful solutions. I'm enjoying engaging with people to make sure both sides have a clear vision of the outcome No matter at what stage your project or just an idea right now, be sure I can bring a lot of value to it
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Next.js
    Laravel
    Android
    iOS
    Back-End Development
    Front-End Development
    Electron
    React
    React Native
    Full-Stack Development
    Database
    JavaScript
    PHP
    Python
    Node.js
  • $50 hourly
    I specialize in architecting and building systems using Golang and Python, specifically with FastAPI and Django. I have extensive experience working with these frameworks, utilizing them to efficiently develop prototypes and MVPs, as well as designing robust, high-performing, and scalable production systems. Additionally, I am well-versed in creating APIs with Django REST Framework, performing task-based processing with Celery, and integrating various external systems. As a full stack software engineer, I am highly proficient in React, Vue, and the essential HTML/CSS/Javascript components necessary for frontend development in any application. In addition to my expertise in web development, I also possess knowledge in low-level systems and native Android development. Furthermore, I have experience in data science and visualization, familiarizing myself with the scientific Python stack and D3 JS. My technical stack: AWS, Google Cloud, Golang, Python, Django, RestAPI, Multiprocessing, Scrapy, Blockchain, Ethereum, Solana, HBAR, L1 and L2 blockchains, Microservices, AWS Lambda, AWS Step Functions, AWS S3, GRCP
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Ethereum
    Android SDK
    iOS Jailbreaking
    AWS Cloud9
    Golang
    iOS Development
    Python
    AWS Lambda
    Google Cloud Platform
    Java
    Android App Development
  • $70 hourly
    As a web developer with 9+ years of experience, I am proficient in a wide range of technologies and tools. My stack includes: Programming languages: PHP, Python, JavaScript, Node.js, HTML, CSS Frameworks and libraries: Laravel, Django, Vue.js, React, Angular CMS, e-commerce: WordPress, Shopify Databases: MySQL, MongoDB, PostgreSQL Operating systems: Linux, macOS Web servers: Apache, Nginx Version control: Git Testing and automation: Selenium Deployment and hosting: AWS, GCP, DigitalOcean In addition I am also experienced in web3 development, including the creation of trading bots and smart contracts. My web3 stack includes: Web3 libraries: Web3.js, ethers.js Blockchain platforms: Ethereum, EOS Programming languages: Solidity, Vyper I have over 8.5K hours of experience on Upwork and a strong track record of delivering high quality, responsive, and user-friendly solutions for my clients. Let's work together to bring your project to life!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Web3
    Cryptocurrency
    PayPal Integration
    Solidity
    Smart Contract
    Google APIs
    WordPress
    CSS 3
    Vue.js
    Laravel
    jQuery
    PHP
    Python
    Shopify
  • $40 hourly
    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.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Distributed Ledger Technology
    Bitcoin
    Ethereum
    Java
    Solidity
    JavaScript
    Spring MVC
    Node.js
    MySQL
    MongoDB
  • $19 hourly
    I am a software engineer, Blockchain developer, and web developer,I am a writer also ,I like to write travelogue and stories, I have done Translation job also. Smart Contract Audit GoLang C C++ Jquery Nodejs MongoDb Docker IPFS Swagger java Solidity Web3 Cryptography Mocha /chai /sinon unit testing Git/Github Requirejs Ethereumjs Bug fixing with blockchain wallet integration Using Restful webAPI and integrate into blockchain Using RPC/JSON server and adding into blockchain Creating fully functional cryptocurrency exchange
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    React Native
    Database
    Solidity
    Smart Contract
    Creative Writing
    DApps
    Solidify
    Front-End Development
    React
    HTML5
    MySQL
    Node.js
  • $30 hourly
    Blockchain developer with experience in blockchain applications and web technologies. Experience in Solidity, Javascript, Dart and Python. I use modern frameworks to deliver quality work, this includes NextJS, ReactJS, Express, Flutter and many more to bring quality code in mobile and web solutions. I have helped over 50+ Clients reach goals at an amaizing rate, and continuing helping is my goal. I deliver work with high communication and time management with proven record of reviews and endorsements.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Flutter
    React
    Node.js
    Website
    Web Development
    Cryptocurrency
    Web3
    Blockchain Architecture
    Ethereum
    DApps
    JavaScript
    Solidity
    Blockchain Development
  • $30 hourly
    Hi everyone, my name is Gianmaria and I work as Blockchain Developer. Actually I'm the Blockchain Manager of a large company and I have completed lots of private jobs and projects. My main skill is Solidity but I have also great knowledge of Python, JS as programming languages besides that all the blockchain stuff (ERC20, ERC721, ERC1155, IPFS, Proxy, Gamification, Serialization, Web3 etc...). I hope that you can choose me and I will help you as best as possible!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Django
    API
    DApps
    Truffle
    Bitcoin
    Blockchain Architecture
    Python
    Solidity
    JavaScript
    web3.js
    Blockchain Development
  • $35 hourly
    I am an expert at developing tech strategies and models for blockchain and crypto solutions across exchanges with as little latency as possible. I have also work with numerous 3rd Party integrations for similar projects in the crypto space. These are my roles & accomplishments - Implement crypto currency payment integration - Development of crypto exchanges trading solutions - Create bots and trading strategies - Creation of DEX Trading Platform - Create/implement smart contract. - Web3 frontend implementation. - Trading bots and solutions - Hands-on experience with trading system development: linking exchanges, data management and preprocessing, saving API and trade information, processing trade CSV/JSON, creating/exploring features, building backtesting and trading platforms, trade order management, implementing and execution of algorithms, calculating portfolio stats, creating final reports and charts, statistics and more. - Data Analytics/Dashboards/BackEnd/FrontEnd - Creation of DEX Trading Platform - Working with DEX's on blockchains such as ETH (Uniswap, Shibaswap, Sushiswap), BSC (Pancakeswap, Apeswap), Poly (Quickswap, Sushiswap), Avalanche, Fantom, Celo and more. - Creation and implementation smart contracts. - Financial Analytics, Information Extraction, API Development, Integration, Payment Gateways Tech Stack: Backend: Python, FastAPI/Flask/Django, Postgres/TimescaleDB, Redis, Celery, Kafka, Elastic Search, Websockets, Node.js/Express.js/Mongo Blockchain: Solidity, Rust on ETH, BNB Chain, EVM Chains, Solana, NEAR Frontend: React.js, Next.js, Redux, Typescript, Nest.js App Dev: React Native UI/Ux: Figma I'm hardworking and committed to my work and will ensure that you get the best experience possible.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Blockchain, NFT & Cryptocurrency
    Crypto Exchange Platform
    Crypto Asset
    Crypto Wallet
    FinTech Consulting
    Node.js
    Solidity
    Crypto Wallet Development
    Cryptocurrency
    Bitcoin
    Python
  • $70 hourly
    Programmer and blockchain developer with a solid background in Javascript, Node JS, React, HTML, CSS, Solidity, C++, C#, mql4, mql5 and PineScript. I develop and code indicators, scripts and trading strategies as well as any kind of web automation system. Examples of previous works: - Coding strategies and indicators for MT4, MT5, TradingView and NinjaTrader - Building robots for cryptocurrencies that work on centralized/decentralized exchanges (e.g. PancakeSwap, UniSwap, Kucoin, Binance, etc) - Automating trading strategies and connecting them to any broker to trade securities, forex, options, futures, commodities and indexes - Web/app development - Web retrieval data - Automating web processes - Developing cross-platform desktop applications for macOS, Windows and Linux - Adding security or licenses to your software applications - API development - Extracting data from Telegram, Discord, Instagram or any other messaging/social media site - Improving SEO ranking Feel free to contact me should you have any queries.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    JavaScript
    Websockets
    API Development
    Trading Automation
    MQL 5
    HTML5
    CSS 3
    Financial Trading
    Bitcoin
    Cryptocurrency
    Bot Development
    MQL 4
    Node.js
    API Integration
  • $60 hourly
    I have over 3 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 can create multiple custom DEFI solutions and also fork existing ones. 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. Some of the many projects which I've built in the past are: • NFT launches/drops : regular, whitelisted, gasless whitelisting using wallet signatures, Merkle Tree etc. • NFT staking, merging etc. • ERC20 token ICOs: regular, whitelisted, gasless whitelisting • ERC20 tokens with custom specifications: burnable, tax fee on buying/selling etc. • DeFi forks of platforms (Uniswap, Pancakeswap and others) • Creating a bridge for wrapping NFTs and ERC20 tokens between chains • Custom smart contract solutions I am highly capable of building you full custom solutions on Ethereum, Binance Smart Chain, Polygon and many other chains. Other languages I have been coding over the years are: C++, C, Python, Javascript, DevPascal, Java, Kotlin, Rust, Matlab.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Next.js
    Solidity
    Smart Contract
    JavaScript
    React
  • $15 hourly
    𝐇𝐞𝐥𝐥𝐨 𝐚𝐧𝐝 𝐭𝐡𝐚𝐧𝐤 𝐲𝐨𝐮 𝐟𝐨𝐫 𝐜𝐨𝐧𝐬𝐢𝐝𝐞𝐫𝐢𝐧𝐠 𝐦𝐲 𝐩𝐫𝐨𝐟𝐢𝐥𝐞! Are you searching for a dedicated and reliable professional who can take your project to the next level? Look no further! With a strong commitment to quality and satisfaction, I'm here to help you achieve your goals. My expertise lies in seamlessly integrating into ongoing projects, deciphering code, and promptly delivering enhancements, fixes, and new features. I treat your project as if it were my own, ensuring it reaches its full potential. As a seasoned developer, I'm not just here to execute your requests; I'm your partner in building a stellar product. Here's how I approach our collaboration: 1. 𝙐𝙣𝙙𝙚𝙧𝙨𝙩𝙖𝙣𝙙𝙞𝙣𝙜 𝙔𝙤𝙪𝙧 𝙑𝙞𝙨𝙞𝙤𝙣: I begin by actively listening to your needs and then evaluating them from multiple angles, drawing on my extensive knowledge and experience. 2. 𝙀𝙛𝙛𝙚𝙘𝙩𝙞𝙫𝙚 𝘾𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙞𝙤𝙣: Clear communication is paramount. We'll engage in a productive dialogue to refine project details, address any questions, and align our expectations. 3. 𝘽𝙖𝙡𝙖𝙣𝙘𝙞𝙣𝙜 𝙎𝙥𝙚𝙚𝙙 𝙖𝙣𝙙 𝙌𝙪𝙖𝙡𝙞𝙩𝙮: I understand the delicate balance between swift development, optimal app performance, and long-term maintainability. Expect well-structured code, optimizations, and rigorous testing. 𝐏𝐫𝐢𝐦𝐚𝐫𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 & 𝐒𝐤𝐢𝐥𝐥𝐬: 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: - Proficient in Python, Golang, Django - Expertise in PostgreSQL with a focus on query optimization - Skilled in REST architecture, Delayed Jobs, caching, CSV imports, and concurrency handling - Authentication and authorization using Devise, JWT, and Pundit - Integration with external APIs such as Facebook, Stripe, and Twilio 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: - Proficiency in Tailwind CSS, CSS, SASS, and PostCSS - Strong knowledge of JavaScript, ES6, and Typescript - Familiarity with libraries like Charts.JS, D3, FullCalendar, and Google Maps API - Experience with ReactJS/Redux framework and Next.js 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧 𝐚𝐧𝐝 𝐒𝐦𝐚𝐫𝐭 𝐂𝐨𝐧𝐭𝐫𝐚𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: - Expertise in Ethereum, BSC, and Polygon smart contract development - Creation of NFT collections (ERC721, ERC721A, ERC1155) - Development of NFT minting websites (Web3js, Metamask integration) - Image and metadata generation algorithms for NFT artwork - Asset uploads to IPFS and development of NFT staking contracts - ERC20 token development with various features 𝐃𝐞𝐯𝐎𝐩𝐬: - Proficient in Git/GitHub and Vagrant - Experience in continuous integration and delivery with CircleCI - Hosting solutions with Heroku and AWS services (S3, R53, CF, B2) - Docker containerization 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: - Strong skills in PostgreSQL, MariaDB, and AWS DynamoDB - Familiarity with Redis for caching 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐌𝐞𝐭𝐡𝐨𝐝𝐨𝐥𝐨𝐠𝐢𝐞𝐬: - Proficient in JIRA, Git, Slack, Agile, and Scrum methodologies - Experience with Docker for containerization 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐀𝐬𝐬𝐮𝐫𝐚𝐧𝐜𝐞: - Expertise in unit testing, Minitest, integration testing, Selenium, VCR - Continuous integration with GitHub Actions and Gitlab If you're seeking a partner who can turn your vision into a reality, optimize your codebase, and ensure the success of your project, let's connect. Together, we can build something exceptional. I look forward to the opportunity to work with you. Let's create something amazing!
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    JavaScript
    TypeScript
    Next.js
    Web Application
    Functional Testing
    Software QA
    Android App Development
    Web Development
    Virtual Assistance
    Administrative Support
    Smart Contract
    App Development
    Data Entry
    Cryptocurrency
  • $30 hourly
    I am a courteous and enthusiastic Full Stack Blockchain Developer from Bangalore, India. Some of the skills I use now on Blockchain: expertise in solidity Ethereum | Solidity | Solana | Rust Token creation | NFT mint | NFT Marketplace | Auctions | Defi | Staking | ICO/IDO | Payment Protocol | Exchanges | and many more… Building cryptocurrencies, NFT staking, minting and marketplace dapps, defi dapps, decentralized exchange, decentralized donation platform, and much more. I have strong knowledge of solidity, and I keep myself up to date with the latest trends in the defi and NFT space. I am a MERN Stack developer. I build a web app using MongoDB, Express, React, and Node. I've been a web developer since 2018. I specialized in Blockchain Development and front-end and back-end application development. Here I am working as a single freelancer. Some of the skills I use now on the front-end: ➳ Language: JavaScript (ES5/ES6, Babel), HTML5, CSS3 with SCSS, …; ➳ Frameworks: ReactJS(Gatsby/NextJS), Redux; ➳ UI CSS Frameworks: Tailwind, React Suite, Material UI, Bootstrap, ...; ➳ Tests: Jest, TDD, enzyme, … ➳ Cloud: AWS, Firebase ➳ Design: Object-Oriented UI/UX Design, responsive web, … ➳ Others: Axios, AJAX, Webpack, npm, yarn, … Some of the skills I use now on the back-end: ➳ Language: Nodejs, Express, Socket.io, Javascript ➳ Database: MongoDB, SQL, AWS, Firebase Project Types: ✔ Online Shops / eCommerce ✔ API / Custom Libraries ✔ Highload Systems ✔ Custom CMS / CRM / Frameworks ✔ Online Gambling ✔ Websites more........ It is important for me to build a relationship with the client, so I am primarily looking for projects. I am ready to discuss requirements and communicate with your team via video chat.
    vsuc_fltilesrefresh_TrophyIcon Blockchain
    Cryptocurrency Forking
    Solidity
    NFT Marketplace
    Initial Coin Offering
    NFT
    Redux
    Firebase
    Ethereum
    Smart Contract
    Layer 2 Blockchain
    React
    AWS Application
    Sass
    JavaScript
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How to Hire Top Blockchain Developers

What is a blockchain developer?

From cryptocurrencies to initial coin offerings (ICOs), smart contracts, and supply chains, the blockchain promises better security, transparency, and accountability to the business world. If you’re looking for a freelancer who can help you implement your own blockchain, consider hiring a blockchain developer.  

How do you hire a blockchain developer?

You can source blockchain developers on Upwork by following these three steps:

  • Write a project description. You’ll want to determine your scope of work the skills and requirements you are looking for in a blockchain developer.
  • Post it on Upwork. Once you’ve written a project description, post it to Upwork. Follow the prompts to help you input the information you collected to scope out your project.
  • Shortlist and interview blockchain developers. Once the proposals start coming in, create a shortlist of the candidates you want to interview. 

Of these three steps, writing your project description is the most important. It’s where you will determine your scope of work, the specific type of blockchain developer you need for your project, and your budget.

How much does it cost to hire a blockchain developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced blockchain developer may command higher fees but also works faster, has specific areas of expertise, and delivers higher-quality work.
  • A contractor who builds a client base may price services more competitively.

Rates charged by blockchain developers on Upwork are:

  • Beginner: $30 per hour
  • Intermediate: $45 per hour
  • Advanced: $59 per hour

Why hire a blockchain developer?

The trick to finding the best candidate is to identify your needs. 

  • Blockchain developers can assist with technology integration into business processes. This can lead to the improvement of operational efficiency and productivity. 
  • Experienced specialists can help develop hack-proof apps or platforms to guarantee fast and safe exchange of digital currencies. 
  • Experts in blockchain technology are always up-to-date with the latest trends. This allows them to build effective strategies for their clients to achieve short and long-term goals. 

Why blockchain matters

First, what is blockchain? In short, it is a distributed database designed to ease transactions and keep track of assets. This may seem like a straightforward goal, but it is a problem for consumers, businesses, financial institutions, and governments.

These inefficiencies can slow down the pace of business, leading to lost revenue for individual companies and lower growth for the economy as a whole. Blockchain has the potential to solve many of these problems.

Blockchain developer FAQ

How do you write a blockchain developer job post?

Your job post is your chance to describe your project scope, budget, and talent needs. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.

Job post title

Create a simple title that describes exactly what you’re looking for. The idea is to target the keywords your ideal candidate will likely type into a job search bar to find your project. Here are some sample blockchain developer job post titles:

  • We are looking for a seasoned blockchain developer 
  • A junior blockchain developer is needed
  • A fintech company is looking for a blockchain DevOps engineer

Project description

An effective blockchain development job post should include the following: 

  • Scope of work: List all the deliverables you’ll need, from smart contracts to supply chains.
  • Project length: Your job post should indicate whether this is a smaller or larger project.
  • Background: If you prefer experience working with productivity tools, blockchain protocols, or other technologies, mention this here.
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Blockchain developer responsibilities

Here are some examples of blockchain developer job responsibilities:

  • Research, design, and test blockchain technologies 
  • Work with the development team and project managers to architect the necessary infrastructure
  • Ensure data configuration follows security protocols, privacy documents, and other requirements. 

Blockchain developer requirements and qualifications

Be sure to include any requirements and qualifications you seek in blockchain development. Here are some examples:

  • Programming languages such as Solidity (for Ethereum), C++, Java, JavaScript, etc.
  • Popular blockchain development platforms such as Ethereum, Hyperledger, etc.
  • Database languages such as SQL
  • Application-specific knowledge (e.g., cryptocurrencies, smart contracts, ICOs, etc.)

Ready to integrate advanced technologies into your business process? Hire the best blockchain developer on Upwork today!

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