Freelancers for hire in Serbia
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Sponsored Freelancers
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Summary: Highly skilled and innovative Mobile, Web & Blockchain Developer with a proven track record in creating cutting-edge, secure, and efficient web applications utilizing blockchain technology. Proficient in a range of programming languages, including Android, React-Native, Swift, Flutter JavaScript, Solidity,...Summary: Highly skilled and innovative Mobile, Web & Blockchain Developer with a proven track record in creating cutting-edge, secure, and efficient web applications utilizing blockchain technology. Proficient in a range of programming languages, including Android, React-Native, Swift, Flutter JavaScript, Solidity, Python, and more. Adept at designing, developing, and implementing complex decentralized systems, smart contracts, and DApps. Committed to delivering high-quality solutions that align with client objectives and industry best practices. Skills: Mobile Development: Expertise in Cross-Platform and Native mobile development using modern frameworks and languages such as React-Native, Flutter, Kotlin, Swift, and more. Skilled in creating responsive, user-friendly interfaces. Blockchain Development: Extensive experience in blockchain technology, including Ethereum, Hyperledger, and other platforms. Proficiency in developing smart contracts, decentralized applications (DApps), and implementing blockchain solutions. Web Development: Expertise in front-end and back-end web development using modern frameworks and languages such as React, Angular, Node.js, Python, and more. Skilled in creating responsive, user-friendly web interfaces. Smart Contracts: Solid understanding of smart contract development using Solidity and other relevant languages. Capable of implementing complex business logic securely on the blockchain. Security and Optimization: Knowledgeable about security best practices in blockchain and web development. Experience in optimizing code and infrastructure for efficiency and performance. API Integration: Proficient in integrating various APIs to enhance the functionality and interoperability of web and blockchain applications. Database Management: Skilled in database design, implementation, and management, including SQL and NoSQL databases. less
Hire MarkMemphis
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Hello! I'm a senior software engineer who has worked in software development and education for over 15 years. Fields of interest Windows, Web, Mobile App, Databases. Skilled in Programming, Research, and Problem-solving. Strong Math and logic background. Mainly worked as a Freelancer and Professor of programming...Hello! I'm a senior software engineer who has worked in software development and education for over 15 years. Fields of interest Windows, Web, Mobile App, Databases. Skilled in Programming, Research, and Problem-solving. Strong Math and logic background. Mainly worked as a Freelancer and Professor of programming languages. Also, I had several Contracts with companies as a programmer for various technologies. I'm focusing on Web & Mobile development using React, React Native, Vue, Node, Javascript, Typescript, C#, Java, HTML, CSS and PHP. -Some of these projects were: • Web Application Development: React, Vue, Angular, JS/TS, Node, Python, Django, PHP, Laravel, CI • DNA Manipulation: C++ • Aras connector: C#, SQL Server, WPF • Email service/Projects management collaborative software: MVC, ASP.NET, C#, MSSQL, Gmail • PreviCAD system: C#, ASP.NET MVC, SQL Server • News & Magazines App: Android, Mobile Development, Java • Restaurant Android Application: Java, Android, Mobile Development • Transpotation Management System: Java, Android, Mobile Development • Attribute Manager: C#, MSSQL, Software Architecture • Microsoft Office – Excel Add-On: C#, MSSQL • C++ TCP UDP communication: C++, Linux, Windows • OOP Principles and Design - UML - J2EE – Websrvices: J2EE, Web Services • Spectral analysis of a complex sine wave in the frequency domain: C#, .NETLink: 1. Programming Languages C#, C/C++, Objective-C, Java, Kotlin, Python, PHP, JavaScript. 2. Frameworks/Platforms ✔️Javascript Frameworks ➤ React.js, React Native ➤ Vue.js ➤ Angular.js, Angular2+ ➤ Node.js ✔️PHP Frameworks ➤ Laravel ➤ CodeIgniter ✔️ Python Frameworks ➤ Django ➤ Flask ✔️C# Frameworks ➤ ASP.NET MVC ➤ ASP.NET Core MVC ✔️Cross Platform ➤ Flutter ➤ Xamarin ✔️Embedded Systems/Software ✔️Cryptography 3. Databases MSSQL, MySQL, NoSQL, PostgreSQL, Google Firebase 4. APIs ➤ Stripe, Paypal ➤ Google Maps API, Google Charts API, Google Vision API, Facebook API, Azure ➤ SendGrid, Mailchimpmp, Sentry, Twilio, Firebase ➤ Elasticsearch, Algolia, Amazon less
Hire vladang
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Seasoned Full-Stack Developer with over 10 years of proven experience in architecting and delivering complex web applications. Proficient in both backend, frontend technologies and highly performant solutions that drive business impact.Seasoned Full-Stack Developer with over 10 years of proven experience in architecting and delivering complex web applications. Proficient in both backend, frontend technologies and highly performant solutions that drive business impact. less
Hire ivicadev
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- Skills Python, Data Science, System Engineering, Database Architecture, Backend Development, Cloud DevOps, Blockchain Core. - Experiences * Perception system development for Autonomous Engineering * Cloud Web Automation & Data Processing * Data Mining & NLP on Big Data * Blockchain-based banking platform development- Skills Python, Data Science, System Engineering, Database Architecture, Backend Development, Cloud DevOps, Blockchain Core. - Experiences * Perception system development for Autonomous Engineering * Cloud Web Automation & Data Processing * Data Mining & NLP on Big Data * Blockchain-based banking platform development less
Hire sasaprogramer21
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I am a highly experienced Full Stack Engineer with 9 years of expertise. I prioritize collaboration and strive to be part of high-trust teams that foster healthy communication, emphasize ownership, and value fast feedback loops. My goal is to contribute my skills and join an innovative and creative tech start-up,...I am a highly experienced Full Stack Engineer with 9 years of expertise. I prioritize collaboration and strive to be part of high-trust teams that foster healthy communication, emphasize ownership, and value fast feedback loops. My goal is to contribute my skills and join an innovative and creative tech start-up, where I can actively participate in developing technical platforms and products for various stakeholders. Technical scope: Frontend Development: Angular, Vue.js/Nuxt.js, React/Next.js, JavaScript, TypeScript Backend Development: Java, Node.js/Express.js, Python, Golang, ASP.NET, PHP/Laravel-CodeIgnitor... Mobile App Development: React Native, Flutter, Swift, Java, ObjectiveC, Kotlin, SwiftUI Blockchain: Solidity, Rust, Web3.JS/Ethers.JS, Ethereum/BSC/Tron/Cardano/Polygon/Solana/Opensea less
Hire jovan68
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I am a Full-stack Blockchain developer with 5+ years of development experience. Including the crypto exchanges (P2P, CEX & DEX), blockchain forks (NFT Marketplaces, DAO), tokens creation (ERC-20, ERC-721 , ERC-721A,, ERC1155 BEP20, SPL-TOKEN), smart contracts, ICO, Defi & IDO Using Solidity and Rust I have developed...I am a Full-stack Blockchain developer with 5+ years of development experience. Including the crypto exchanges (P2P, CEX & DEX), blockchain forks (NFT Marketplaces, DAO), tokens creation (ERC-20, ERC-721 , ERC-721A,, ERC1155 BEP20, SPL-TOKEN), smart contracts, ICO, Defi & IDO Using Solidity and Rust I have developed Dapp, smart contracts, and NFT's for Ethereum, Solana, Fantom and Binance Blockchain. Developed simple P2E Games like Dice, Guess Number, Moonshot, CoinFlip and Raffle. Web development skill sets: ? Front-end: HTML, CSS, JQuery, Bootstrap 5, Tailwind CSS, React.js, Next.js ? Mobile: React Native ? Back-end: Node.js, Express.js, NestJs, Laravel, FastAPI, Django ? AWS, Firebase, Firebase cloudstore ? Database: PostgreSQL, MySQL, MongoDB, Prisma ? DevOps: Amazon Web Services, Digital Ocean, CI/CD ? Unit testing: React Testing Library, Cypress, Jest ? API Integration: OpenAI, Twillo API, Google API, Stripe API, PayPal API, Booking API Let's chat and I look forward to working with you! less
Hire milovan5
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Hi there, my name is Milos and i am a mobile developer. i specialize in developing mobile applications for various platforms such as iOS and Android, Flutter, React Native. I have experience with programming languages such as Java, Swift, Dart, and Kotlin. I am skilled in design user-friendly interfaces, creating...Hi there, my name is Milos and i am a mobile developer. i specialize in developing mobile applications for various platforms such as iOS and Android, Flutter, React Native. I have experience with programming languages such as Java, Swift, Dart, and Kotlin. I am skilled in design user-friendly interfaces, creating clean code, and testing and troubleshooting mobile apps. I am passionate about keeping up-to-date with the latest technologies in the mobile development industry and staying ahead of the curve. less
Hire milos0
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I'm a Senior Full-stack Developer with 5 years of rich experience. As a seasoned full-stack developer with a strong focus on React and WordPress, I bring a comprehensive skill set to the table, enabling me to tackle a wide array of web development projects. With years of experience under my belt, I have honed my...I'm a Senior Full-stack Developer with 5 years of rich experience. As a seasoned full-stack developer with a strong focus on React and WordPress, I bring a comprehensive skill set to the table, enabling me to tackle a wide array of web development projects. With years of experience under my belt, I have honed my abilities to create seamless, dynamic user experiences using React, while also managing and delivering content-rich websites with WordPress. Key Skills and Expertise: React Development: Proficient in building scalable and maintainable single-page applications (SPAs) using React. Skilled in utilizing React component-based architecture to create interactive UIs that are both efficient and user-friendly. WordPress Development: Experienced in developing custom WordPress themes and plugins tailored to clients' needs. Familiar with the WordPress REST API for integrating React components into WordPress environments. Full-Stack Capabilities: Comfortable with both front-end and back-end technologies. Proficient in server-side languages (such as PHP, Node.js, Python) and database management (MySQL, MongoDB), ensuring that the full spectrum of web development needs is covered. Responsive Design: Expertise in crafting responsive designs using modern CSS frameworks and pre-processors, ensuring websites look great and function well on all devices. API Integration: Skilled in integrating third-party APIs and services, and capable of creating custom RESTful services for more complex interactions between the front-end and back-end. Version Control and Workflow: Proficient with Git for version control and familiar with various development workflows, which helps in maintaining code quality and collaborating with teams effectively. Professional Experience: Developed numerous high-performance web applications using React, Redux, and modern JavaScript (ES6+). Customized and optimized WordPress websites, improving SEO, page load times, and user engagement. Built and maintained full-stack applications, handling everything from initial setup, database design, API development, to front-end implementation and deployment. Collaborated with designers and other developers to turn concepts into user-friendly web applications. less
Hire mkatanicfl
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Highly skilled Software Developer with 7 years of experience designing, developing, and publishing web & mobile applications that achieved high rating. A collaborative team player with exceptional skills in UI design, back-end integration, and optimizing application performance for increased user satisfaction and...Highly skilled Software Developer with 7 years of experience designing, developing, and publishing web & mobile applications that achieved high rating. A collaborative team player with exceptional skills in UI design, back-end integration, and optimizing application performance for increased user satisfaction and retention. ✔ Web Skill - Frontend (JavaScript, React, Angular, VueJS) - Backend (Python, PHP, Java, C#) ✔ Mobile Skill Ionic, Object C, Swift, Java, Kotlin, React Native, Flutter ✔ AI Skill Image Process, Chatbot, Object Recognize less
Hire Milos2023
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I am a Full Stack Web developer specializing in distributed systems and Web3 technologies. I launched multiple Ethereum Mainnet contracts, assisted with over 20 blockchain patent applications, created an NFT, and delivered MVPs. My experience includes Web2 back-end services, data analysis, and work on...I am a Full Stack Web developer specializing in distributed systems and Web3 technologies. I launched multiple Ethereum Mainnet contracts, assisted with over 20 blockchain patent applications, created an NFT, and delivered MVPs. My experience includes Web2 back-end services, data analysis, and work on multimillion-dollar projects. I enjoy system design and is adept at creating technical solutions around business use cases. less
Hire veroljub4
