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Freelancers patrocinados
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Seasoned Java/Full-Stack Developer with 14 years of experience, specializing in diverse industries such as hospitality, air and water quality monitoring, sports betting, casinos, fintech, and medicine. My expertise spans multiple technologies including Java, Kotlin, Go, JavaScript, TypeScript, Spring Boot,...Seasoned Java/Full-Stack Developer with 14 years of experience, specializing in diverse industries such as hospitality, air and water quality monitoring, sports betting, casinos, fintech, and medicine. My expertise spans multiple technologies including Java, Kotlin, Go, JavaScript, TypeScript, Spring Boot, PostgreSQL, MySQL, MongoDB, Node.js, Express.js, Nest.js, Next.js, React, Angular, and Vue. I hold a Master's degree in Computer Science. Throughout my career, I have provided the following services: ?️ Backend Development ? Frontend Development ?️ Web Development ?️ System Architecture ? Database Design & Modeling ? API Development & Integration ? IoT Backend Development ? AI Development & Integration ? Blockchain, DeFi, DApp, NFT ☁️ Cloud Engineering I have collaborated with global banking institutions, game development companies, startups, and several Fortune 500 clients across various sectors: ? Health Care ? Air and Water Quality Monitoring ? Sports Betting ? Casinos ? Fintech & Banking ? Medicine ? Hospitality I specialize in building secure and scalable blockchain solutions using Solidity, Ethereum, Polygon, Binance Smart Chain, and other EVM-compatible chains. I’ve delivered projects in DeFi, NFT marketplaces, DAOs, staking platforms, token development (ERC20, ERC721, ERC1155), and crypto payment gateways. I have deep knowledge of tokenomics, gas optimization, contract auditing, and full-stack dApps using React, Next.js, Node.js, and Web3.js/Ethers.js. I ensure all contracts are secure, upgradeable, and fully tested using tools like Hardhat, Truffle, and Foundry. I follow best practices in smart contract development with CI/CD, Git, and test-driven workflows. Whether you need a fully-featured dApp, NFT minting engine, DeFi protocol, or blockchain integration into existing systems, I’m here to deliver high-quality, production-ready code. As a Spring Boot expert, I have developed numerous robust backend systems, showcasing my ability to integrate complex server functionalities seamlessly. Here’s a snapshot of the tech stacks I've mastered: - Languages: Java, JavaScript, TypeScript - Frameworks: Spring Boot, React, Vue.js, Angular - Blockchain Development: Ethereum, Solana, Smart Contracts, Solidity, Rust, MemeCoins, Trading Strategies - Web Development: - Frontend: HTML5, CSS3, React, Vue, Angular - Backend: Spring Boot, Node.js, Express.js - Database Management: MySQL, PostgreSQL, MongoDB - DevOps and Collaboration Tools: Git, Docker, Jenkins, AWS, Azure - Software Testing: JUnit, Mockito, Selenium, Jest - Additional Skills: RESTful APIs, microservices architecture, Agile methodologies, DevOps practices My career is a testament to my dedication to continuous learning and embracing new challenges. I am enthusiastic about further enhancing my technical skills and am always prepared for the next technological advancements in the software development industry. menos
Contratar devetar
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1. Front-end Development - React.js, HTML/CSS/JavaScript/Vue.js 2. Back-end Development - Node.js/Express.js (MERN) - Django/Flask (Python) - PHP/Laravel, Wordpress 3. Database Management - MongoDB, SQL (PostgreSQL/MySQL) 4. API Development - RESTful and GraphQL APIs 5. Full-stack Application...1. Front-end Development - React.js, HTML/CSS/JavaScript/Vue.js 2. Back-end Development - Node.js/Express.js (MERN) - Django/Flask (Python) - PHP/Laravel, Wordpress 3. Database Management - MongoDB, SQL (PostgreSQL/MySQL) 4. API Development - RESTful and GraphQL APIs 5. Full-stack Application Development - SPAs, PWAs, and third-party integrations 6. Deployment and Hosting - Cloud services (AWS, Heroku, Azure) - CI/CD and Docker 7. Maintenance and Support - Performance, security, and scalability updates 8. Mobile App Development - React Native, Flutter - Android, iOS menos
Contratar moha262
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TechPlus is a leading Development professional company providing superior software system, Web, Mobile and creative designing solutions and services to corporations globally. Having a powerful Technology Development and Innovation center in Pakistan and with over 400+ happy customers worldwide, raging from startups...TechPlus is a leading Development professional company providing superior software system, Web, Mobile and creative designing solutions and services to corporations globally. Having a powerful Technology Development and Innovation center in Pakistan and with over 400+ happy customers worldwide, raging from startups - fortune five hundred corporations across numerous industries, TechPlus has created it’s mark as a well established and sound company driven by the industry’s highly skilled and trained people and is definitely headed in turning into a leading organization that facilitates, enhances and provides measurable business value to customers through most effective uses of technology and Resources to organizations globally. Our goal is to exceed our customer’s expectations in the form of value, quality and complete customer satisfaction. menos
Contratar techplusintl
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Mkaits Technologies is a leading IT Firm committed to delivering a range of services that span the entire spectrum of IT Industry. Since 2019, we have specialized in providing Blockchain solutions, AI & Machine Learning, Big Data Analytics, Web & Mobile development, E-commerce, and Custom Software Solutions. We...Mkaits Technologies is a leading IT Firm committed to delivering a range of services that span the entire spectrum of IT Industry. Since 2019, we have specialized in providing Blockchain solutions, AI & Machine Learning, Big Data Analytics, Web & Mobile development, E-commerce, and Custom Software Solutions. We excel in blockchain technologies, offering DEX, DAPP, Web3, NFT, smart contracts, and DeFi solutions, using platforms like ETH, BSC, and Polygon. Our web & app development services cover Java, Python, PHP, JavaScript frameworks (Reactjs, Nodejs, Angular, Vuejs), and mobile platforms (React Native, Flutter). We also provide e-commerce solutions with expertise in WooCommerce, Shopify, and Magento. Our custom software solutions include AI, machine learning, and data science, using advanced technologies like TensorFlow and AWS. Whether you need blockchain integration, web & mobile development, e-commerce platforms, or custom software solutions, Mkaits is your trusted partner! menos
Contratar mughiraaa
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At Hynx Ltd, we are passionate about transforming ideas into cutting-edge solutions. Our core expertise lies in crafting dynamic web applications, secure blockchain infrastructures, and intelligent AI systems that empower businesses to excel in a digital-first world. We harness the latest technologies to build robust,...At Hynx Ltd, we are passionate about transforming ideas into cutting-edge solutions. Our core expertise lies in crafting dynamic web applications, secure blockchain infrastructures, and intelligent AI systems that empower businesses to excel in a digital-first world. We harness the latest technologies to build robust, scalable platforms that not only meet the demands of today but also anticipate the opportunities of tomorrow. Our innovative spirit extends beyond technology. With a solid foundation in civil engineering and a flair for video design, we bring a unique, multidisciplinary approach to every project. This blend of technical precision and creative vision allows us to deliver solutions that are both functionally powerful and visually captivating. Whether it's developing an intuitive web portal, designing a secure blockchain ecosystem, or producing engaging video content, we turn complex challenges into breakthrough results. At Hynx Ltd, we don't just follow trends—we set them. Join us as we push the boundaries of what's possible and redefine the future of technology and design. menos
Contratar martin926
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Hi! My name is Marjan, an accomplished professional with a decade of experience in delivering outstanding projects. Since 2010, I'm providing top-notch digital services. My passion lies in turning your vision into reality, and I'm thrilled to embark on this exciting journey with you. I guarantee a customized approach,...Hi! My name is Marjan, an accomplished professional with a decade of experience in delivering outstanding projects. Since 2010, I'm providing top-notch digital services. My passion lies in turning your vision into reality, and I'm thrilled to embark on this exciting journey with you. I guarantee a customized approach, timely delivery, and uncompromising quality. Let's collaborate and create something truly extraordinary together! Have a look at the services I offer: ✅ Wordpress Website Design and Development ✅ Shopify Website Design and Development ✅ Business Website Design and Development ✅ E-commerce Website Design and Development ✅ Custom Website Design and Development ✅ Portfolio Website Design and Development ✅ SaaS Website Design and Development ✅ Blog Website Design and Development ✅ Educational Website Design and Development ✅ Membership/Subscription Website Design and Development ✅ Real Estate Website Design and Development ✅ Dropshipping Website Design and Development ✅ Wix Website Design and Development ✅ Website Maintenance and Support Services ✅ Search Engine Optimization (SEO) I'm committed to delivering high-quality, creative, and engaging solutions for your project. Let's discuss your specific requirements and start working together to achieve your goals! menos
Contratar marjanahmed13
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Boris is a highly skilled professional from Serbia with exceptional expertise in designing and developing websites, mobile applications, games, automated bots, and AI solutions. He also brings strong knowledge in electrical and structural engineering, allowing him to approach projects with a rare multidisciplinary...Boris is a highly skilled professional from Serbia with exceptional expertise in designing and developing websites, mobile applications, games, automated bots, and AI solutions. He also brings strong knowledge in electrical and structural engineering, allowing him to approach projects with a rare multidisciplinary perspective. Boris is known for delivering high-quality results on time and for maintaining a positive, resilient attitude—even when facing complex challenges. He communicates clearly, respects client opinions, and consistently provides realistic, well-thought-out solutions. Anyone who has worked with Boris quickly recognizes his professionalism, reliability, and collaborative working style. If you are looking for top talent or need support with a challenging project, Boris is someone you can trust to deliver excellent results. Best regards. menos
Contratar borisdeveloper71
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I'm working in big distribution company in Georgia Making VBA reports, projects. I'm using VBA from 2003 year, but from 2014 year very intensively, as this is my job. Working with large amount of data ( about 1mln line per Excel sheet ) I can automate you routine tasks and make it very easy and quickI'm working in big distribution company in Georgia Making VBA reports, projects. I'm using VBA from 2003 year, but from 2014 year very intensively, as this is my job. Working with large amount of data ( about 1mln line per Excel sheet ) I can automate you routine tasks and make it very easy and quick menos
Contratar MamukaB
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.NET, Chatbot con IA, Desarrollo de IA, Amazon Web Services, Desarrollo de Aplicaciones para AndroidI’m a Full-Stack, Mobile, and AI Engineer with a strong focus on speed, quality, and scalable architecture. I specialize in building production ready web and mobile applications using modern frameworks, clean code, and best practices. My approach is simple: understand the business goal, move fast, and deliver reliable...I’m a Full-Stack, Mobile, and AI Engineer with a strong focus on speed, quality, and scalable architecture. I specialize in building production ready web and mobile applications using modern frameworks, clean code, and best practices. My approach is simple: understand the business goal, move fast, and deliver reliable solutions without sacrificing performance or maintainability. I’ve worked on SaaS platforms, APIs, automation systems, AI-powered features, and real-time applications. Whether it’s a startup MVP or a complex system, I prioritize clear communication, efficient development, and long term stability. I don’t just write code I build systems that work, scale, and are easy to maintain. If you need a developer who delivers fast, thinks ahead, and values quality as much as speed, I’m ready to help. ---------------------------------Tech Stack--------------------------- Frontend -Next.js, React, Vue.js, Angular.js, TypeScript, JavaScript -HTML5, CSS3, Tailwind CSS, MUI, ShadCN. -SSR, SEO optimization, performance tuning Backend -Node.js, NestJS, Nuxt, Express -PHP, Laravel, CI -Python (FastAPI, Django) -REST APIs, GraphQL, WebSockets Mobile -Android & IOS -React Native, Flutter -Expo -Cross-platform app development AI & Automation -OpenAI API, LLM integrations -AI chatbots, automation workflows -Data processing & model integration Databases -PostgreSQL, MySQL, MongoDB, MadriaDB, Supabase, Firebase, Neon, Pinecone. -Redis, RabbidMQ -Prisma, TypeORM, Medoo DevOps & Cloud -Docker, PM2, Nginx -AWS, AWS EC2, S3, Lambda. -Vercel, Heroku -Linux (Ubuntu) -CI/CD pipelines -Kubernetes. Jekkins, Trello, Clickup. Other -Git, GitHub/GitLab, Bitbucket -API integrations (Stripe, Payoneer, Paypal, Telegram, SendGrid, Resend) Authentication, security best practices menos
Contratar kerryd71
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I am a senior Full-Stack WEB | Mobile | DevOps Developer with 7+ years of hands-on experience building secure, scalable, and high-performance web and mobile applications. I help businesses transform ideas into reliable, production-ready solutions. On the frontend, I work with modern frameworks such as React.js,...I am a senior Full-Stack WEB | Mobile | DevOps Developer with 7+ years of hands-on experience building secure, scalable, and high-performance web and mobile applications. I help businesses transform ideas into reliable, production-ready solutions. On the frontend, I work with modern frameworks such as React.js, Next.js, Vue.js, and React Native to deliver fast, user-friendly interfaces. On the backend, I specialize in PHP (Laravel), Node.js, RESTful APIs, and database design using MySQL, PostgreSQL, and MongoDB. I also bring strong DevOps expertise, handling cloud infrastructure, CI/CD pipelines, Docker, Linux servers, and deployment automation to ensure smooth releases and high system availability. I have worked with international clients and remote teams, delivering clean code, clear communication, and on-time results. Whether you need a full-stack web app, mobile application, cloud setup, or ongoing maintenance, I focus on quality, scalability, and long-term success. menos
Contratar khrystynad4
