Java Developers for hire in Spain

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Showing 12 results
  • Hire     jcrbahia
Hire     jcrbahia

    jcrbahia jcrbahia

    Spain $25 USD / hour
    Ingeniero, web, Full Stack. Android e iOS
    Spain
    3.3
    3 reviews 3 reviews $25 USD per hour
    ⭐⭐⭐⭐⭐ Professional software developer, commercial financial analysis, with development in management applications, and their applications in webs and designs. Developer at Full Stack. Odoo developer Ingeniero Profesional desarrollador de software, anilisis financiero comercial, con desarrollo estructurados en...
    ⭐⭐⭐⭐⭐ Professional software developer, commercial financial analysis, with development in management applications, and their applications in webs and designs. Developer at Full Stack. Odoo developer Ingeniero Profesional desarrollador de software, anilisis financiero comercial, con desarrollo estructurados en aplicaciones y webs . Desarrollador en Full Stack. Odoo developer less
  • Hire jcrbahia
  • Hire     sergioes
Hire     sergioes

    sergioes sergioes

    Spain $50 USD / hour
    Web3 DeFi Crypto Agile Project Manager / Lead Dev
    Spain
    5.0
    51 reviews 51 reviews $50 USD per hour
    # 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...
    # 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: - Writting: 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. less
  • Hire sergioes
  • Hire     fernandosdew
Hire     fernandosdew

    fernandosdew fernandosdew

    Spain $60 USD / hour
    Senior Blockchain Engineer | Fullstack Developer
    Spain
    0.0
    1 review 1 review $60 USD per hour
    Hello, thank you for visiting my profile. I am a professional Blockchain engineer who is well versed in DLT ( Distributed Ledger Technology ) on Corda R3 and HyperLedger fabric, NFT (Non-Fungible Token ) & Defi ( Decentralized Finance ) application on Solana, Ethereum, Polygon ( MATIC ), Binance ( BSc ), Cronos. I...
    Hello, thank you for visiting my profile. I am a professional Blockchain engineer who is well versed in DLT ( Distributed Ledger Technology ) on Corda R3 and HyperLedger fabric, NFT (Non-Fungible Token ) & Defi ( Decentralized Finance ) application on Solana, Ethereum, Polygon ( MATIC ), Binance ( BSc ), Cronos. I have over 6+ years of development experience with Blockchain technology and am willing to learn more and get more challenging tasks. Also, I am a full stack backend developer with passion in Javascript | PHP | C/C++. I build web & mobile apps primarily with NodeJS, Express, dot NET,Graphql, PHP, Ruby on Rails , Mongo/Postgres, MySQL, SQLITE, AWS, AZURE, Linux, React/Redux, React Native, Angular, Ionic, Vue. Communication with clients, depth of knowledge, and the highest code quality are the areas of my expertise. TARGET PROJECTS ✅ DLT ( Distributed Ledger Technology ) implementation ✅ P2E NFT game development ✅ NFT marketplace development ✅ NFT minting site development ✅ 10,000 NFT art collection creation ✅ Defi swap integration ✅ Fullstack web & mobile development SKILLSET ✅ Kotlin for Corda R3 smart contract ✅ Rust for Solana smart contract ✅ Solidity for Ethereum smart contract ✅ Solana-web3.js integration for Solana frontend ✅ Web3.js, Ethers.js integration for Ethereum frontend ✅ Java Spring for Corda R3 backend ✅ Game development with Phaser / Unity / Cocos2D / Three.js ✅ Node.js / Laravel / Django for backend ✅ Oracle / Postgresql / Mysql for relational database ✅ MongoDB / Redis / Couchbase for non-relational database ✅ Web design with React / Vue / Angular ✅ Openzepplin standard - ERC20, ERC721, ERC1155 ✅ Smart contract devkit with Hardhat, Truffle, Ganache ✅ Smart contract unit testing with Chai, Mocha ✅ Version control with Github, Bitbucket ✅ Agile software DevOps with Trello, Jira, Kanban My strategy is to complete work 100% ( neither 99% nor 99.9% ) until my client is satisfied with my work both on budget and time. I'm keen on long-term relationships with clients and companies. I love keeping my eyes on new trends in IT world, learning sharp-end technologies, and working on difficult and challenging tasks. I'm always ready for any test of skills I mentioned above. Thanks very much. less
  • Hire fernandosdew
  • Hire     jb0123980
Hire     jb0123980

    jb0123980 jb0123980

    Spain $25 USD / hour
    Senior Blockchain Developer
    Spain
    0.0
    0 reviews 0 reviews $25 USD per hour
    ************* Who is me? *************** >>> Developer Me = IDEA + SKILL + EXP; >>> Project.Accept(Me).GoForward(); >>> Print(Project.Result); // Success! ...
    ************* Who is me? *************** >>> Developer Me = IDEA + SKILL + EXP; >>> Project.Accept(Me).GoForward(); >>> Print(Project.Result); // Success! ****************************************** ✓ Smart Contract, DeFi, in Ethereum, Solana, Avax, Wax, Algorand, Polygon,BSC, Polkadot ✓ DApps development ; Solidity/Rust + web3.js/ethers.js ✓ Solidity, Rust, Golang, C++, Java, Python ✓ Integration with crypto wallets such as Metamask. ✓ SQL and NoSQL (MySQL, MSSQL, PostgreSQL, InfluxDB, MongoDB), Redis ✓ Sytems Administration (DevOps, Docker, Apache, Nginx, Heroku) What I can do for you: ✓ Creating an exchange Trading platforms with 3rd part liquidity API, Margin trading etc. like binance.com, bybit.com, or Bitmex.com ✓ NFT marketplace, Defi/Dapp Development, DeFi Consulting (swaps, liquidity pools, borrowing and lending, yield farming, impermanent loss, governance tokens) ✓ NFTs (ERC-721, ERC-1155, Flow, BSC, Polygon, Rarible, Opensea, Nifty, etc) ✓ ICO| STO| IEO- Developing from scratch + Marketing ✓ Smart Contract (ERC20 + ERC721) and Audit ✓ IOT solutions using blockchain such as in Farming ✓ Peer to peer platform ✓ Wallet development (HOT /COLD/ETHER/P2P/ ETH WALLET) ✓ Cryptocurrency Pricing Website ✓ Crypto Arbitrage ✓ Forking coin less
  • Hire jb0123980
  • Hire     vergaraeduardo32
Hire     vergaraeduardo32

    vergaraeduardo32 vergaraeduardo32

    Spain $25 USD / hour
    Blockchain | Web | Unity 3D Game | App Expert
    Spain
    0.0
    0 reviews 0 reviews $25 USD per hour
    !!! WILL DO MY BEST FOR ALL MY CLIENTS !!! As a pro developer, I dare say you will get the best result with me. ------------------------------------------MY SKILL SET------------------------------------------------- ✔️Blockchain: • Smart-Contracts (Solidity, Rust,C++) • NFT (Non Fungible Token) Marketplace...
    !!! WILL DO MY BEST FOR ALL MY CLIENTS !!! As a pro developer, I dare say you will get the best result with me. ------------------------------------------MY SKILL SET------------------------------------------------- ✔️Blockchain: • Smart-Contracts (Solidity, Rust,C++) • NFT (Non Fungible Token) Marketplace Development • Crypto Coins Exchange Development • DLT Apps & Private Blockchain Development • Token development based on Ethereum and Binance (ERC20, ERC721, ERC 1155, BEP20, BEP721, BEP1155) • ICO & IDO Development with Created Token ( Coin ) ✔️Web: • Laravel, MySQL, MERN • Node.js , React.js, Angular.js, Vue.js & Express.js • PHP, CakePHP, CI , Wordpress • Ruby on Rails • Django ✔️Unity3D: • AR, VR, NFT • Mobile(Android/iOS), Desktop) • C#, WebGL ✔️App: • React Native • Flutter • Android, iOS Native Please feel free to contact me to make your idea come true. Thanks for your attention. less
  • Hire vergaraeduardo32
  • Hire     valisergi337
Hire     valisergi337

    valisergi337 valisergi337

    Spain $25 USD / hour
    ✔Senior BlockChain and Full Stack Developer
    Spain
    0.0
    0 reviews 0 reviews $25 USD per hour
    I am a very talented Blockchain developer, 7+ years of development and project management experience, with the last 3 years of expertise in Blockchain architecture, Cryptocurrency Wallet Development, Smart Contract, Crypto Coins Exchange Development. I am a results-oriented professional and possess experience using...
    I am a very talented Blockchain developer, 7+ years of development and project management experience, with the last 3 years of expertise in Blockchain architecture, Cryptocurrency Wallet Development, Smart Contract, Crypto Coins Exchange Development. I am a results-oriented professional and possess experience using cutting-edge development tools and technology stacks and have high aptitude for designing and implementing new software. I has a deep knowledge of blockchain technologies, specifically in constructing the decentralized application, fork & customizing the existing secure smart contracts, implementing trending methods like yield farming, building bridges between networks and etc. I have responsive Front-end development experience using HTML5, CSS, JavaScript, TypeScript, jQuery, Bootstrap, Ajax, React, React Native, Next.js and Vue.js . For Back-end server-side development, I have developed in PHP, Laravel, CodeIgniter, Node.js, Python(AI, ML, DL, NLP), Java/J2EE, and C/C++. I am always hungry for learning new technology & improving myself. Especially on Blockchain scope. I am very dedicated to maintaining up-to-date industry knowledge and IT skills. Looking for long-term opportunities that appreciate high-quality standards with quality and maintenance code. I am a quick learner so you can start me on any project with confidence that I will learn any topics/areas quickly and deliver professional software that suits your needs. less
  • Hire valisergi337
  • Hire     rosoriano84
Hire     rosoriano84

    rosoriano84 rosoriano84

    Spain $33 USD / hour
    Senior Software Developer || BlockChain Expert
    Spain
    0.0
    0 reviews 0 reviews $33 USD per hour
    I am a Professional Software Engineer having 7+ years of experience. I am working on: ★ App/DApp Development ★ Website Development ★ Reverse Engineering Area of Expertise: ★ Laravel ★ MERN stack ★ Python ★ C++/C#/VB.NET ★ Assembly ★ Java/Kotlin/Dart ★ Metaverse ★ Web3 ★ Solidity Why Choose Me? ★ Client satisfaction...
    I am a Professional Software Engineer having 7+ years of experience. I am working on: ★ App/DApp Development ★ Website Development ★ Reverse Engineering Area of Expertise: ★ Laravel ★ MERN stack ★ Python ★ C++/C#/VB.NET ★ Assembly ★ Java/Kotlin/Dart ★ Metaverse ★ Web3 ★ Solidity Why Choose Me? ★ Client satisfaction is my top priority ★ No upfront Payments ★ Free Post maintenance up to 3 months ★ Free Project Consultation less
  • Hire rosoriano84
  • Hire     santiagomac841
Hire     santiagomac841

    santiagomac841 santiagomac841

    Spain $50 USD / hour
    Talented Front-end, Blockchain,and NFT developer
    Spain
    0.0
    0 reviews 0 reviews $50 USD per hour
    Top 2% React.js Developer I am a specialist on the web front-end development ground and got a profound knowledge of doing anything related to this platform. I also have tough skills in website optimization by using optimized assets, reducing the number of plugins, and minimizing codes. I have hands-on experience in...
    Top 2% React.js Developer I am a specialist on the web front-end development ground and got a profound knowledge of doing anything related to this platform. I also have tough skills in website optimization by using optimized assets, reducing the number of plugins, and minimizing codes. I have hands-on experience in building highly customized web applications such as CMS, LMS, Trading Platforms, NFT Platforms, NFT minting Dapp, Defi, and NFT marketplace, etc with various web languages, frameworks, and Blockchain technology. I have designed several NFTs including not only 2D but also 3D art collections. I have developed several projects with unity and 3D. I have experience in building NFT games with unity. [login to view URL] My Expertise: - React.js(Next.js), Vue.js(Nuxt.js), MUI and Node.js - HTML/HTML5, CSS/SCSS, Bootstrap/Tailwind CSS - JavaScript/TypeScript, jQuery, Ajax, JSON - Solidity, Web3.js, ERC20/BEP20, ERC721(ERC721A)/BEP721 Top 2% NFT, Blockchain Developer By contributing to global clients' projects with good quality and service, I got many good reviews recently and kept a long-term relationship with them. When you Google the keyword "well done NFT dev freelancer profile", you may find my profile. My high repeat hire rate shows a good quality of work, timeline, and fair budget. My NFT service: - NFT Design Design concept art based on the client's NFT idea or sketch Design prototype NFT image from concept art Building over 100 art traits sth like a prototype Rarity table (the client could provide it to me) Generating 10K NFTs and metadata Uploading all NFTs and metadata to IPFS Checking and testing uploaded NFTs - NFT Minting Website Building Minting Front-end building Metamask Connection Web3 integration Testing and deployment - NFT Smart Contract Coding Presale and Whitelist functionality NFT reservation functionality Publicsale price controlibility Max, min amount setting - NFT Market place and NFT Game Unity, C#, Autodesk 3Ds Max, Adobe Photoshop Game design, NFT 3d Asset design, 3D modeling Lowpoly modeling, texture mapping I can work as not only an individual contributor but also as a committed team member since I worked in several global teams. I have a good command of English so I can have a friendly conversation or chat session with you. less
  • Hire santiagomac841
  • Hire     dfcorrearam
Hire     dfcorrearam

    dfcorrearam dfcorrearam

    Spain $25 USD / hour
    Diseño de sitio web Freelancer - HTML Developer - Teléfonos móviles Engineer
    Spain
    0.0
    0 reviews 0 reviews $25 USD per hour
    Developer con experiencia en Website/Webservices Development y Mobile Development busca ser contratado.
    Developer con experiencia en Website/Webservices Development y Mobile Development busca ser contratado. less
  • Hire dfcorrearam
  • Hire     fabvelazquez3
Hire     fabvelazquez3

    fabvelazquez3 fabvelazquez3

    Spain $45 USD / hour
    Senior Web | Mobile | Python | C++,C# Developer
    Spain
    0.0
    1 review 1 review $45 USD per hour
    "Programming isn't about what you know, it's about what you can figure out.” - Chris Pine "Quality than quantity." - Velazquez Fabricio ( me ) ? I am a fullstack web/mobile app designer/developer with 6+ years in web development and embedded programming. ✒️My main focus is on JavaScript and mobile technologies and...
    "Programming isn't about what you know, it's about what you can figure out.” - Chris Pine "Quality than quantity." - Velazquez Fabricio ( me ) ? I am a fullstack web/mobile app designer/developer with 6+ years in web development and embedded programming. ✒️My main focus is on JavaScript and mobile technologies and involved in development with ReactJs, VueJs, NodeJs, Express, NestJs, TypeScript, Electron, Hybrid apps, React Native, Flutter, Firebase, MongoDB, MySQL, Python and many related technologies. I take up on PHP/Laravel projects time to time. I am really good at Android/IOS development especially and also C++/C#. ✒️However, I don't think the number of programming languages ​​available to a developer is the most important factor, but I prefer the ability of the developer dealing with really new languages ​​without any trouble. My usual work is mostly with my local clients, helping them solve complex problems. I have been working closely with my local business clients in migrating and developing new systems using modern tech stacks. I am a full time freelancing developer. My time zone is GMT+1 but I am available to work in flexible hours based on the project demands. If you have a project idea and want to have a production ready product, you can send me a private message to have a chat. less
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