Hire the best Blockchain Developers in Spain

Check out Blockchain Developers in Spain with the skills you need for your next job.
  • $15 hourly
    As a computer science graduate with a diverse skill set, I offer expertise in a range of programming languages and web development frameworks. With extensive experience in C, Java, and Python, I am well-versed in algorithm design, data structures, and software development principles. I specialize in web application development, with proficiency in popular frameworks such as Django, as well as front-end technologies like HTML, CSS, and JavaScript. My keen eye for design allows me to create visually appealing interfaces that are also highly functional and user-friendly. In addition to my web development skills, I am also highly skilled in Python, which I use to automate various tasks and processes. Whether it's data scraping, data analysis, or data visualization, I can create custom scripts and tools to streamline your workflows and make your life easier. As a freelancer on Upwork, I am dedicated to delivering high-quality work on time and within budget. I am committed to understanding your specific needs and developing solutions that are tailored to your requirements. My goal is to provide clients with reliable and efficient solutions that exceed their expectations. Let's collaborate to turn your vision into reality and create something innovative together!
    Featured Skill Blockchain
    Scripting
    YOLO
    NLP Tokenization
    C
    CodeIgniter
    Flask
    Django
    HTML
    JavaScript
    MySQL
    Java
    CSS
    PHP
    Python
  • $55 hourly
    +15 years of experience as Full Stack web developer always interested in new technologies and methodologies. Hands-on team leader providing executive leadership, technical expertise and product management. I write clean and high quality code on time in many different languages and frameworks. Experienced with lots of languages, frameworks, platforms and libraries. In lasts projects: Creaton: - FE (Typescript, React+hooks, antd, tailwind, ethers.js, NuCypher, LitProtocol) - SC (Solidity. Upgradable, Metatx (Biconomy), SuperFluid) - TheGraph Coinvise: - FE (Typescript, React+hooks, antd, tailwind, ethers.js) - Backend (Typescript, Koajs, posgresql) - SC (Solidity. Upgradable, Metatx (Biconomy)) Youcheck: - Frontend: React - Redux - Saga using Ant Design based components - Backend: Typescript on Koajs using Posgresql with TypeOrm - Some services used: GitlabCI, Docker, Sendgrid, Stripe, Cloudflare, Google Compute Engine Adf.ly (and microservices). Used a lots of stuff, worth mentioning: - Go Lang / Echo framework - Twitter Bootstrap - Mysql / MongoDB / Google Bigquery - CakePHP / Lumen (Laravel) / Silex (Symfony) - PHPCI - Memcache, Redis - Elasticsearch - Python - Docker, Vagrant
    Featured Skill Blockchain
    Solidity
    Node.js
    MongoDB
    Twitter/X Bootstrap
    Redux Saga
    MySQL
    DApps
    TypeScript
    web3.js
    Smart Contract
    CakePHP
    Cryptocurrency
    React
  • $65 hourly
    With 8+ years of international experience spanning analytics, business intelligence, and consulting, I bring a hybrid background of technical proficiency and strategic insight. I partner with product, strategy, and operations teams to define impactful objectives and translate complex data into actionable business value. My expertise covers the full data lifecycle—from stakeholder alignment and KPI definition to ETL, data modeling, visualization, and predictive modeling. I have successfully led initiatives across tech, fintech, and e-commerce sectors in North America, Europe, and Asia, including AI integration, customer experience optimization, and investment analysis. I’m particularly excited about data projects where analytics meets strategy and innovation, including AI-driven transformation and business performance evaluation. I’ve worked on complex descriptive and predictive models, supported C-level decision-making, and managed cross-functional teams and vendor collaborations. Core Tools & Skills: Power BI, Tableau, Looker, Data Studio, SQL, Python, Excel, Google Sheets, HEX Notebooks Predictive Analytics, Data Strategy, KPI Monitoring, Strategic Consulting, AI Evaluation (LLM/NLP), Agile, Team Leadership
    Featured Skill Blockchain
    Investment Research
    Cryptocurrency
    Jira
    Venture Capital
    Python
    Looker Studio
    Tableau
    SQL
    Microsoft Power BI
    Microsoft Excel
    Business Analysis
  • $35 hourly
    Native Spanish professional translator. BA in Translation Studies from the Dolmetscherschule Zürich, Switzerland. Professional Member of Asetrad (Spanish Association for Translators, Correctors, and Interpreters). Language pairs I work with: 1. English into Spanish 2. German into Spanish. 20+ years of professional experience in: 1. Technical translation: instruction manuals, user guides, technical data sheets, technical reports related to the chemical industry. 2. Corporate translation: corporate documents, correspondence. 3. Audiovisual translation: subtitles of online courses on finance and Blockchain technology, informative talks on Blockchain technology, psychology, self-help. Although I have experience in those fields, I am currently focusing my translation career on finance, financial markets, and investment. I have worked for international firms in Spain and in Germany (Arthur Andersen, Wittur Group, Bayer, Unitext GmbH). Passionate about my profession and linguistics. I like to solve problems for the client, to establish a trusting, close, and respectful relationship. In order to consistently provide high-quality work, I meticulously conduct thorough research prior to beginning any major project, and I always make certain that I am fully qualified to undertake any task before accepting it.
    Featured Skill Blockchain
    DeFi
    Subtitle Localization
    German to Spanish Translation
    Cryptocurrency
    Technical Translation
    Financial Translation
    Audiovisual Translation
    German
    Spanish
    Literary Translation
    Castilian Spanish
  • $90 hourly
    I'm a freelance Blockchain specialist with over 9 years of experience delivering high-quality decentralized applications, smart contract systems, and Web3 infrastructure. I've worked with a wide variety of clients—from DAOs and startups to established tech companies building: 🧠 Smart contracts (Solidity, Hardhat,...) 🧮 DeFi platforms (staking, liquidity mining, fee management, Native DEX,...) 🖼️ NFT marketplaces (minting, royalties, IPFS/Pinata, metadata management) 🌉 Cross-chain tools and integrations (Safe, Aave, Uniswap, Metamask, THORChain, CosmosSDK, IOTA,...) 🧰 Custom tooling and dApp frontends (React, Node.js, TypeScript, Ethers.js, Wagmi, Go,...) I'm also experienced in project leadership and backend systems, which helps me collaborate with full-stack teams, manage timelines, and deliver reliable software even under tight deadlines. ✅ Strong communication ✅ Web3-native mindset ✅ Adaptable to remote teams and async workflows If you’re looking for a committed and hands-on blockchain expert to bring your Web3 product to life—or scale it—let’s connect.
    Featured Skill Blockchain
    Web3
    Smart Contract Development
    C
    Engineering Tutoring
    Cryptocurrency
    Docker
    Solidity
    Blockchain Development
    C#
    Python
    JavaScript
    Blockchain Architecture
    Ethereum
  • $60 hourly
    Hello. Thanks for visiting my profile. My name is Alex Corcuera and I am from Spain. I have 7+ years of experience in React web app development and all of the JavaScript-based web frameworks. As well as web development skills, I also have strong blockchain background and experience. Especially, I can speak native English. I am sure I can be a big help for your project and business. Hope to build a strong relationship with you. Thanks.
    Featured Skill Blockchain
    Automation
    Ethereum
    web3.js
    Solidity
    Smart Contract
    JavaScript
    Redux
    Back-End Development
    Node.js
    React
  • $50 hourly
    As a Unity 3D developer with 13 years of experience, I have extensive experience designing and developing high quality games for various platforms. I am proficient in Unity, C#, SOLID, OOD, DOD, and have a deep understanding of game design principles and mechanics. ▪ The last projects I worked on were PvP Card Autobattler/Autochess, the projects used DOD(ECS) approach and were implemented based on LeoEcs, Unity DOTS frameworks. ▪ Have a good background in CI/CD (Jenkins, Teamcity, Unity Cloud Build, AppCenter) ▪ I possess gameplay code optimization skills as well as graphics optimizations and performance improvements
    Featured Skill Blockchain
    .NET Core
    Solidity
    Game
    Swift
    iOS
    C#
    Unity
  • $38 hourly
    𝗜 𝗵𝗲𝗹𝗽 𝗰𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀 & 𝗲𝗻𝘁𝗿𝗲𝗽𝗿𝗲𝗻𝗲𝘂𝗿𝘀 𝗯𝘂𝗶𝗹𝗱 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁 𝗪𝗲𝗯𝟯 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗮𝗻𝗱 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗯𝗿𝗮𝗻𝗱𝘀 📈 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗦𝗖𝗔𝗟𝗔𝗕𝗟𝗘 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗮𝗻𝗱 𝗦𝗧𝗥𝗔𝗧𝗘𝗚𝗜𝗖 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗶𝗻𝗴 🔥 +175 projects, +20M in revenue, +3M in funds raised 𝗔𝗹𝗹 𝗼𝗳 𝘁𝗵𝗲𝗺 𝘁𝗮𝗸𝗲𝗻 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗺𝘆 𝗔-𝗭 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝘁𝗼 𝗰𝗿𝗲𝗮𝘁𝗲 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗮𝗻𝗱 𝗶𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 𝗲𝗻𝘀𝘂𝗿𝗶𝗻𝗴 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆 & 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆. 🎯 "𝙉𝙤 𝙦𝙪𝙚𝙨𝙩𝙞𝙤𝙣𝙨 𝙖𝙨𝙠𝙚𝙙, 𝙩𝙝𝙞𝙨 𝙜𝙪𝙮 𝙞𝙨 𝙩𝙝𝙚 𝙗𝙚𝙨𝙩 𝙤𝙛 𝙩𝙝𝙚 𝙗𝙚𝙨𝙩. 𝙄 𝙝𝙖𝙫𝙚 𝙙𝙤𝙣𝙚 𝙖 𝙫𝙚𝙧𝙮 𝙩𝙝𝙤𝙧𝙤𝙪𝙜𝙝 𝙧𝙚𝙨𝙚𝙖𝙧𝙘𝙝 (𝙛𝙤𝙧 𝙬𝙚𝙚𝙠𝙨!) 𝙩𝙤 𝙛𝙞𝙣𝙙 𝙖 𝙧𝙚𝙖𝙡𝙡𝙮 𝙜𝙤𝙤𝙙 𝙗𝙡𝙤𝙘𝙠𝙘𝙝𝙖𝙞𝙣 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙥𝙚𝙧, 𝙖𝙣𝙙 𝙝𝙚 𝙚𝙭𝙘𝙚𝙚𝙙𝙚𝙙 𝙢𝙮 𝙚𝙭𝙥𝙚𝙘𝙩𝙖𝙩𝙞𝙤𝙣𝙨 1000%. 𝙉𝙤𝙩 𝙤𝙣𝙡𝙮 𝙝𝙚 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙥𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝙖𝙣𝙙 𝙨𝙠𝙞𝙡𝙡𝙚𝙙 𝙬𝙝𝙚𝙣 𝙞𝙩 𝙘𝙤𝙢𝙚𝙨 𝙩𝙤 𝙘𝙪𝙨𝙩𝙤𝙢𝙞𝙯𝙚 𝙨𝙢𝙖𝙧𝙩 𝙘𝙤𝙣𝙩𝙧𝙖𝙘𝙩𝙨, 𝙢𝙞𝙣𝙩𝙞𝙣𝙜 𝙬𝙚𝙗𝙨𝙞𝙩𝙚𝙨, 𝙗𝙪𝙡𝙠 𝙪𝙥𝙡𝙤𝙖𝙙𝙨 𝙩𝙤 𝙤𝙥𝙚𝙣𝙨𝙚𝙖, 𝙨𝙚𝙩𝙩𝙞𝙣𝙜 𝙨𝙚𝙧𝙫𝙚𝙧𝙨 𝙚𝙩𝙘, 𝙗𝙪𝙩 𝙝𝙚 𝙞𝙨 𝙖𝙡𝙨𝙤 𝙫𝙚𝙧𝙮 𝙣𝙞𝙘𝙚, 𝙥𝙖𝙩𝙞𝙚𝙣𝙩, 𝙖𝙣𝙙 𝙝𝙚𝙡𝙥𝙨/𝙛𝙞𝙭𝙚𝙨/𝙖𝙙𝙟𝙪𝙨𝙩𝙨 𝙙𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚 𝙬𝙝𝙤𝙡𝙚 𝙥𝙧𝙤𝙘𝙚𝙨𝙨. 𝙄 𝙝𝙞𝙧𝙚𝙙 𝙖 𝙙𝙤𝙯𝙚𝙣 𝙥𝙚𝙤𝙥𝙡𝙚 𝙛𝙤𝙧 𝙢𝙮 𝙉𝙁𝙏 𝙥𝙧𝙤𝙛𝙚𝙘𝙩, 𝙖𝙣𝙙 𝙩𝙝𝙞𝙨 𝙬𝙖𝙨 𝙗𝙮 𝙛𝙖𝙧 𝙢𝙮 𝙜𝙧𝙚𝙖𝙩𝙚𝙨𝙩 𝙚𝙭𝙥𝙚𝙧𝙞𝙚𝙣𝙘𝙚. 𝙏𝙝𝙖𝙣𝙠𝙨 𝙖 𝙡𝙤𝙩 𝘼𝙣𝙞𝙤𝙡 😀" ⭐️⭐️⭐️⭐️⭐️ 🗣 Tom Olssen - Vengeaful Beasts 🗣 𝗟𝗶𝗸𝗲 𝘄𝗵𝗮𝘁 𝘆𝗼𝘂’𝗿𝗲 𝗵𝗲𝗮𝗿𝗶𝗻𝗴? 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗷𝗼𝗯 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝘁𝗼 𝘀𝗰𝗵𝗲𝗱𝘂𝗹𝗲 𝗮 𝗙𝗥𝗘𝗘 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗼𝘂𝘁 𝗶𝗳 𝘄𝗲 𝗰𝗮𝗻 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗮𝗺𝗮𝘇𝗶𝗻𝗴 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🔎 𝗛𝗲𝗿𝗲’𝘀 𝘄𝗵𝗮𝘁 𝘀𝗲𝘁𝘀 𝗺𝗲 𝗮𝗽𝗮𝗿𝘁 𝗳𝗿𝗼𝗺 𝗮𝗻𝘆𝗼𝗻𝗲 𝗲𝗹𝘀𝗲 𝘆𝗼𝘂 𝗰𝗼𝘂𝗹𝗱 𝗵𝗶𝗿𝗲 𝘁𝗼 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂: 🔸 I deliver exceptional results from the start. Many clients reach out to me after trying less experienced talent or in-house solutions that didn’t meet their expectations. By choosing me, you’re securing a product that will make you proud and run smoothly for years to come. 🔸 You’re never reliant on me to stay in control! My development approach emphasizes clear, ongoing communication and transparency. I ensure that you have full ownership and understanding of everything built. 🔸 Working closely with Blockchain companies has allowed me to establish exclusive partnerships with some of the most prominent names in the Web3 industry. From Marketing, PR, Go-to-Market Strategy, and Tokenomics to NFT Strategy, Legal Structure Setup, VC Fundraising, and KOL, I offer comprehensive expertise. 🔸 Security is never compromised. Too many times in the Web3 world we see projects getting shattered - funds stolen, servers crashing, trust from users lost. That’s why I include thorough quality assurance testing at every stage, with final checks before your product is delivered. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗷𝗼𝗯 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝘁𝗼 𝘀𝗰𝗵𝗲𝗱𝘂𝗹𝗲 𝗮 𝗙𝗥𝗘𝗘 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗼𝘂𝘁 𝗶𝗳 𝘄𝗲 𝗰𝗮𝗻 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗮𝗺𝗮𝘇𝗶𝗻𝗴 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🔎 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 & 𝗦𝗢𝗟𝗨𝗧𝗜𝗢𝗡𝗦: ✅ Ethereum / Solana / BSC / Polygon (EVM) Customized Smart Contract Development ✅ Blockchain & Web3 Consultation (Smart Contract Ecosystem Design, Tokenomics, Whitepaper) ✅ EVM Smart Contract Audits (Automated Testing, Security Breach Search, Gas Efficiency, etc.) ✅ NFT Collection (ERC721 / ERC721A / ERC1155) creation (Whitelist, Shareholder Dividends, Burn mechanism, Reveal/Unreveal, Access Control, etc.) ✅ NFT Minting Dapps ✅ NFT Staking Contracts + Staking Dapps ✅ ERC20 Tokens (Basic Tokenomics, Staking Features, Buy Limits, Fees, etc.) + ICOs / IDOs ✅ DAOs ✅ NFT Marketplace ✅ Decentralized Exchange (Uniswap / Pancakeswap) ✅ Launchpad (Seedify) ✅ Yield Farming + DeFi Protocol ✅ Image & Metadata Generation Algorithm for NFT Artwork + IPFS Upload ✅ Solana NFT Smart Contract + Minting Dapp (Candymachine, Metaplex) ✅ 2D & 3D Graphic Design, Animations, and Promo Teaser Videos 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞: ✅ Solidity, Hardhat / Truffle / Remix, Slither, Ethereum / Binance / Polygon / Avalanche / Optimism / Solana ✅ React.JS + Next.JS (Web3.JS, ethersJS), AngularJS, HTML, CSS & JavaScript (jquery, Bootstrap) ✅ Node.js, NestJS, ExpressJS, Docker, Python, Amazon AWS, MongoDB, MySQL ✅ Figma, AdobeXD, PSD ✅ Github / Gitlab / Bitbucket, Slack, Trello / Notion / Clickup / Jira 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗷𝗼𝗯 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝘁𝗼 𝘀𝗰𝗵𝗲𝗱𝘂𝗹𝗲 𝗮 𝗙𝗥𝗘𝗘 𝗱𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗳𝗶𝗻𝗱 𝗼𝘂𝘁 𝗶𝗳 𝘄𝗲 𝗰𝗮𝗻 𝗯𝘂𝗶𝗹𝗱 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗮𝗺𝗮𝘇𝗶𝗻𝗴 𝘁𝗼𝗴𝗲𝘁𝗵𝗲𝗿. 🔎
    Featured Skill Blockchain
    Blockchain Architecture
    API
    NFT
    Solidity
    Solana
    Python
    Smart Contract
    Ethereum
    JavaScript
    Node.js
    Cryptocurrency
    React
    Next.js
    Blockchain Development
  • $50 hourly
    # Roles - Agile project manager / engineering manager / lead developer / developer. # Current availability - Part-time. # Current interests - Web3, DeFi, Blockchain, Fintech, Crypto. - Software development productivity and good practices for small to mid-sized teams. - Challenging projects and learning new things (any role, including developer). - React.js, Angular.js, Nest.js, Express.js, Node.js, MongoDB, cloud (Docker, Kubernetes). # Experience - December 2021 - current: crypto market and modern banking startup. Project manager / engineering manager / technical director directly reporting to the CEO & founders. - March 2017 - May 2020: Power Software Consulting. Lead developer (MEAN stack) for a complex multimedia CMS. - August 2011 - August 2014: MockupScreens.com. Project manager. - July 2005 - current: Freelancer.com and other markets. Freelance developer. More than 400 projects successfully completed, being one of the top-rated developers. # Education - 2003-2009 Public University of Spain: Technical Engineer in Telecommunications (BSc. Degree equivalent in the USA). # Languages - English: - Writing: almost native. - Speaking: good. - Spanish: native. # Other - I have been using (GNU?/)Linux as my main OS for many years, and I have a preference for open-source software.
    Featured Skill Blockchain
    Smart Contract
    NestJS
    Agile Software Development
    React
    Angular
    MongoDB
    JavaScript
    AngularJS
    PHP
    Node.js
    MySQL
    Java
  • $50 hourly
    (Expert-Vetted badge - top 1% on Upwork) Thank you for considering my proposal on Upwork. I appreciate the opportunity to compete for your project. Strengths: - AI - Blockchain - Immersive technology - Internet of Things (IoT) - Robotics - Algorithmic trading For a comprehensive overview of my and my team's past projects and how they align with your objectives, please refer to the ⭐ cover letter ⭐ enclosed with my proposal. This details a list of relevant past projects to demonstrate our capabilities in handling projects similar to yours. I am eager to discuss further details with you. Feel free to contact me at your earliest convenience. If your project involves emerging technologies or algorithmic trading and requires immediate attention, I am well-equipped to assist you. Thank you once again for considering my proposal. I look forward to the possibility of working together.
    Featured Skill Blockchain
    Python
    PLC Programming
    PCB Design
    Microcontroller Programming
    Embedded System
    Embedded C
    Electronics
    Electrical Design
    Electrical Engineering
    C++
    Circuit Design
    Artificial Intelligence
    API
    3D Modeling
  • $50 hourly
    👉 Currently, I am working as a 🚀 Python, React, AI, OpenAI, and Web 3.0 Developer, with hands-on experience in 🤖 ChatGPT, 🎨 DALL-E 2, and 🗣️ Whisper. 👨‍💻 I have been deeply involved in web development for over 8 years and bring more than 12 years of experience in programming. Although I hold a degree in 🎓 Theoretical Physics, I have discovered my true passion lies in cutting-edge internet technologies, including 🌐 Web Development, 🧠 AI, and 🌍 decentralized Web 3.0 solutions on the blockchain. My extensive experience spans across a broad spectrum of technologies, with a strong focus on 🐍 Python, AI development, and blockchain integration. 💼 In my current role, I specialize in creating and optimizing Web3 and blockchain solutions, leveraging the power of Python, Django, and AI to build scalable, secure, and innovative applications. My background also includes extensive work in developing high-performance, AI-driven systems and integrating these with decentralized platforms, positioning me at the intersection of AI and blockchain. 🛠️ Technologies I am experienced with: Python, Django, AI, Web3, Blockchain, .NET, C#, JS, Linux, among others. 📂 GitHub: @cesarlpb
    Featured Skill Blockchain
    Python
    Django
    Tutoring
    RESTful Architecture
    RESTful API
    API Development
    C#
    Solidity
    API
    Ethereum
    Smart Contract
    Web Development
    English
  • $85 hourly
    Thank you for checking my profile! My name is Caglar and I’m a freelance cloud solution architect - Do not worry, I still enjoy coding very much :) My specialties are: - Cloud Architecture - DevOps - API Development / Database Design - Python Programming - Computer Vision / Deep Learning - Mobile App Development I have experience working as Co-founder / Technical Manager in 2 startups and I understand exactly how you want me to help you on your projects. No matter the stage you are at as an entrepreneur, my main objectives are to help you bring your vision to life and your product to market.
    Featured Skill Blockchain
    Software Architecture & Design
    CI/CD
    Scripting
    Automation
    DevOps
    Database
    API Development
    Google Cloud Platform
    Machine Learning
    iOS Development
    Python
    Amazon Web Services
    Computer Vision
    Deep Learning
  • $56 hourly
    Developer, teamwork fan, open source and blockchain enthusiast. I have been working as a software developer since I remember, loving to taking new challenges and finding solutions. In the last few years I have been working in fintech related products, blockchain and crypto-assets. I'm a fan of system and service integrations. From APIs, sockets, queues. Everything that leads small units to work together and maximize their potential. Let's put us together!
    Featured Skill Blockchain
    Amazon S3
    Ethereum
    Solidity
    API Integration
    C#
    MySQL
    Python
    Redis
  • $35 hourly
    Introduction: I am a passionate and dedicated cryptocurrency enthusiast with a focus on blockchain technology. Since January 2021, I have been actively learning about the industry through reading, following news, and engaging in different crypto networks and protocols. I have always embraced a “white-belt” mentality, constantly trying to improve and learn. This, I believe is what made me land my first Web 3 job after a relatively short time. Further, my past year working full-time in the industry has constantly challenged me to keep learning in order to deliver, as my responsibilities and tasks have also developed over time. Certification: In August 2022, I earned my certification as a Certified Blockchain Expert from the Blockchain Council. This certification is available on my Upwork page and validates my knowledge and expertise in the blockchain industry. Work Experience (relevant for crypto): Since October 2022, I have been working in the crypto industry, where my first task was to conduct deep analysis of upcoming crypto projects, including presales, ICOs, IDOs, and SHOs. In addition to this, I have been writing articles about the current state of the crypto market, as well as tracking "smart money" wallets to stay up-to-date on buying and selling trends. Together with a developer, I made a smart wallet tracker, where I currently have around 300 confirmed smart wallets and get every purchase they make sent to my Telegram. Through my own interest in learning On-Chain analysis, I have checked each wallet on things such as volume and profitability. Skills: I possess a strong general understanding of the crypto market and its various trends, a part of my tasks has been to write articles about current and upcoming trends (Please note these trends have most probably shifted since writing this) in the crypto space, including AI, DeFi 2.0, Optimistic Rollups, ZK-Rollups, GameFi, Asset Tokenization, Perp Dexes, Digital Identities, and Payment Solutions, to mention a few. I also have a basic knowledge of Solidity, allowing me to identify specific functions in smart contracts that could be potential issues when ex engaging with micro-cap crypto protocols on decentralized exchanges. Currently learning more On-Chain analysis to further deepen my skillset in the Web 3.0 industry Passion: My spare time is dedicated to researching various crypto projects for personal interests, and I can confidently say that I live and breathe cryptocurrencies and blockchain tech.
    Featured Skill Blockchain
    Critical Thinking Skills
    Etherscan
    Investment Research
    Market Analysis
    Market Trends
    Financial Analysis
    Content Writing
    Market Research
    Research & Strategy
    Cryptocurrency
    Strategy
    Bitcoin
    Ethereum
    Initial Coin Offering
  • $40 hourly
    A productive Full-Stack Blockchain/Web/Mobile developer with a passion for change and breaking previous records. My passion is creating world-class web applications.
    Featured Skill Blockchain
    Cryptocurrency
    Crypto Wallet Development
    NFT Marketplace
    Ethereum
    Solidity
    React
    Crypto Exchange Platform
    Vue.js
    Crypto Wallet
    NFT Minting
    WebGL
    Binance NFT
    Cryptocurrency Mining
    Blockchain Architecture
  • $16 hourly
    Hello! I am César from Spain, I have more than 5 years of experience as a web designer, blockchain and web developer. Let's make your proposal a reality: ✅ Web Design ✅ Web Development ✅ Dapp Development ✅ Blockchain Development ✅ Wordpress ✅ Figma to Web ✅ HTML, CSS, JS, React, Angular, ect...
    Featured Skill Blockchain
    Web3
    Ethereum
    NFT
    NFT Minting
    Solidity
    Smart Contract
    NFT Collection Generation
    Blockchain, NFT & Cryptocurrency
    NFT Metadata
    Blockchain Development
    Figma
    Web Design
    Web Development
  • $25 hourly
    Experienced blockchain developer with strong background in smart contract development, blockchain architecture and backend. Proven ability to implement and test decentralized applications on Ethereum and Hyperledger platforms.
    Featured Skill Blockchain
    Docker
    Git
    JavaScript
    Node.js
    Golang
    Ethereum
    Hyperledger Fabric
  • $25 hourly
    I love creating content to grow a channel's audience! With experience is social media for 5+ years at companies like Samsung, Tinka and as a founder of The Crypto Hub I have found what works and what doesn't work when it comes to social media content. I have a particular passion for the Web3 ecosystem and enjoy writing about various topics within this niche.
    Featured Skill Blockchain
    Instagram
    Twitter/X
    LinkedIn
    Crypto Marketing
    Web3
    Copywriting
    Graphic Design
    Content Creation
    Social Media Management
    Social Media Content
  • $10 hourly
    Hello! I am a passionate web developer, I am fast and efficient and I really want to prove it. I do websites with great and original designs at a good price. If you need a cheap and fast website, I'm your man. In addition, you will do your bit so that I can continue training. Thanks
    Featured Skill Blockchain
    Tailwind CSS
    Git
    Angular
    CSS
    HTML
    JavaScript
    TypeScript
    React
  • $50 hourly
    Driven technologist with over a decade in pioneering decentralized tech, I blend passion and expertise to craft client-centric, innovative solutions. My focus is on leveraging cutting-edge technologies for unique customer experiences. Expertise: Low-level programming (C, C++, Rust) specializing in cryptography and cross-platform libraries. Advanced smart contract development using Solidity, C++, Rust, ASM for various blockchain platforms. Rich front-end development and data visualization with TypeScript, Vue, React, and advanced math. Building robust server applications and microservices in NodeJS, C#. Most of my work is showcased on GitHub (will share in chat). As a Blockchain Consultant, I've collaborated with notable clients such as Deloitte, Accenture, KROK, rossotrudnichestvo, and the Embassy of Ossetia, developing and teaching a Blockchain course at Stepic. At Binary District, I lecture on decentralized computer architecture and transaction-based finite state machines.
    Featured Skill Blockchain
    Web3
    Automation
    Flutter
    Dart
    NestJS
    React
    Next.js
    Decentralized Exchange
    Tokenomics
    Rust
    Solidity
    TypeScript
    Node.js
  • $70 hourly
    I'm a seasoned professional in blockchain, full-stack development, and cloud services, committed to delivering cutting-edge solutions that drive digital transformation. Here's a snapshot of what I bring to the table: ● Blockchain Expertise: Proficient in creating secure, efficient blockchain systems and smart contracts that enhance transparency and trust in digital transactions. ● Full-Stack Development: Skilled in developing robust, scalable web applications from the ground up, using modern technologies and frameworks to ensure a seamless user experience. ● Cloud Solutions: Experienced in leveraging cloud platforms like AWS and GCP to deploy and manage scalable, high-availability applications that meet dynamic business needs. I excel in turning complex technical challenges into actionable solutions, working closely with clients to understand their objectives and deliver results that exceed expectations. Ready to innovate and elevate your next project with state-of-the-art technology solutions.
    Featured Skill Blockchain
    Software Architecture & Design
    BigQuery
    Ethereum
    Solana
    Firebase
    Blockchain Architecture
    Amazon Web Services
    Google Cloud Platform
    Kubernetes
    Angular
    React
    MySQL
    Microservice
    Node.js
  • $60 hourly
    Hello, I'm a passionate builder, formerly working at AWS and Riot Games. Happy to have a chat about your project and see if my skillset fits
    Featured Skill Blockchain
    TypeScript
    React
    Java
    JavaScript
    Software Architecture & Design
    Web Development
  • $40 hourly
    With over two decades of diverse experience in the tech industry, I have adeptly navigated roles ranging from developer and software architect to sales engineer, team leader, product owner, and business owner as well. This extensive background enables me to approach challenges with both a startup mindset—prioritizing MVP development and simplicity—and a corporate perspective, emphasizing structured and organized methodologies. I believe in leading by example, viewing it as the most effective method to drive improvements within teams and projects. My focus remains steadfast on understanding and addressing customer needs, always placing them at the forefront. Before undertaking any task, I consistently ask: “Who needs What and Why?” This introspection ensures clarity and purpose, especially when managing backlogs or ambiguous assignments. As a native Spanish speaker fluent in English, I excel at articulating complex technical concepts to non-technical audiences in a clear and concise manner.
    Featured Skill Blockchain
    Artificial Intelligence
    pandas
    SQLAlchemy
    SQL Programming
    PostgreSQL
    Strapi
    Solana
    Amazon DynamoDB
    Flask
    FastAPI
    NodeJS Framework
    AWS Lambda
    Python
  • $40 hourly
    I’m a passionate software engineer with a Bachelor’s degree in Computer Science and 20+ years of experience developing cutting-edge solutions for embedded systems, desktop/mobile applications, and blockchain technology. My expertise spans: Embedded Software/Firmware: Low-level programming (C/C++, RTOS, ARM Cortex-M), device drivers, and IoT edge computing (ESP32, STM32, Raspberry Pi). GUI Desktop Applications: Feature-rich cross-platform apps using Electron.js, Qt, Java Swing, or C#/WPF with database integration (SQLite, PostgreSQL). Mobile Development: Native (Android/Kotlin, iOS/Swift) and cross-platform (Flutter, React Native) apps with cloud backend (Firebase, AWS). Blockchain: Smart contract development (Solidity, Ethereum), DeFi protocols, and dApp integration (Web3.js, Hardhat). I specialize in bridging hardware and software—whether it's crafting efficient firmware for embedded devices, designing intuitive desktop GUIs, or developing secure blockchain solutions. My focus is on delivering clean, maintainable code tailored to your project's needs. Let's discuss how I can bring your ideas to life!
    Featured Skill Blockchain
    Mobile App Development
    Microcontroller Programming
    ESP32
    Python
    C#
    C++
    Desktop Application
    Electrical Engineering
  • $38 hourly
    ABOUT ME As a seasoned professional with a passion for helping individuals and businesses achieve their goals, I've developed a unique approach to driving success. I think of myself as a "Professional Awesomizer" - someone who helps others unlock their full potential, or that of their projects, to achieve awesome results. With a background in English education, writing, and editing, I've honed my skills in communication, project management, and strategy. My expertise spans various industries, including finance, film, and blockchain. WHAT I DO I help individuals and businesses identify their purpose and value, and develop tailored strategies to achieve their objectives. Whether it's coaching, consulting, or project managing, I bring a creative and innovative approach to every project. My goal is to empower my clients to reach their full potential and make a meaningful impact. MY EXPERIENCE With nearly 2 decades of experience working with diverse clients and projects, I've developed a versatile skill set that includes: * Communications strategy and execution * Writing and editing for various audiences * Project management and coordination * Coaching and consulting for individuals and businesses * Web3, blockchain, and NFT expertise **International experience:** I've had the opportunity to work with clients and projects in multiple countries, including the US, India, Guatemala, Turkey, Switzerland, and Spain. This global perspective has broadened my understanding of different cultures and markets, allowing me to provide more effective solutions for my clients. LET’S CONNECT If you're looking for a professional who can help you achieve your goals and make a meaningful impact, let's talk. I'm excited to collaborate with like-minded individuals and businesses who share my passion for innovation and success. Top skills Content Development • SEO Copywriting • Digital Communication Strategy • Artificial Intelligence (AI) • Marketing Strategy
    Featured Skill Blockchain
    Editing & Proofreading
    Blockchain, NFT & Cryptocurrency
    Academic Proofreading
    Academic Research
    Writing
    Search Engine Optimization
    Book Editing
    Copy Editing
    Research Papers
    Fact-Checking
    English
    White Paper
  • $33 hourly
    Hello, this is Erick. I am a 34-year-old professional MQL4 programmer. I've been coding all kinds of MT4 EA's and Indicators since 2003 for many people around the world. In addition, I've been trading LIVE accounts since 2005. I finished my University in Computer Science 10 years ago and my MBA in Project Management in 2014 Do not close the project before talking to me; I can help you with professional quality and price. Best Regards, Gabriel Erick PALMA Dublin, GMT+0 //---------------- My Qualification://---------------- ** Please do not hesitate to contact me and ask for these reviews aforementioned In addition to this, you will be able to see projects from U$100 to U$20.000 that were concluded with 100% satisfaction Search tags: Metatrader4, MQL 4, MQL4, mql4, mql 4, Metatrader, Trader, mql 4 Programmer, Programmer, mt 4, MT4, mql 4 Metatrader, MQL4Metatrader, MT4 Programmer, MQL Metatrader EA Developer, MQL Programmer, MQL developer, MT/MQL, Expert Advisor, Indicator, Forex programmer, code an Indicator, code an EA
    Featured Skill Blockchain
    MQL 5
    Blockchain Development
    Blockchain, NFT & Cryptocurrency
    HTML5 Canvas
    Search Engine Optimization
    Sales & Marketing
    MQL 4
    WordPress
    Python
    JavaScript
    PHP
    HTML
    C++
  • $40 hourly
    I am a full time freelancer with experience in JavaScript, Python, PHP and Solidity. Currently I am working on Blockchain technologies like Solidity, web3, Ethers, Typescript, Truffle, Remix, Hardhat, Hyperledger, Blockscout in DEFI and NFT projects. As for frontend development, I have worked mainly with Vue and React. In backend I'm currently working with Google Cloud Functions, Lambda Functions and NodeJS (Nest and Express). But I have experience working with Django and Laravel. I have been in many developments for more than 10 years during that time I have worked on many different: projects, difficulties, challenges, platforms and teams. My strengths are the following as: Ionic / React Native JavaScript / ECMAScript / TypeScript ReactJS / Redux / Redux Saga Ionic / Angular Solidity / Ethers / Hardhat / web3 / Ganache / remix PHP / Laravel / Wordpress Vue / Vuex / Vuetify / Tailwind / Antd Webpack Bootstrap / Html5 / CSS3 / LESS / SASS / SASS JWT / JSON / REST API / GraphQL / PWA Python / Django / Django REST / Flask JavaScript / Node.js / Express.js / Nest MySQL / PostgreSQL / MongoDB / Firebase
    Featured Skill Blockchain
    AWS Lambda
    Google Cloud Platform
    Solidity
    Video Editing
    Vuex
    Videography
    Bass Guitar
    Redux
    Vue.js
    React
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