Hire the best GraphQL Developers in Serbia
Check out GraphQL Developers in Serbia with the skills you need for your next job.
- $45 hourly
- 5.0/5
- (5 jobs)
Hello! I'm a professional Full-Stack developer with a strong focus on delivering comprehensive web solutions. With expertise in both Front-end and Back-end Development, I specialize in creating end-to-end web applications that are visually stunning, user-friendly, and robust under the hood. Leveraging the capabilities of Nest.js / React and Nest.js / Node.js, I can offer you a wide range of services, including: ✒️ Designing and developing modern, user-friendly User Interfaces (Tailwind CSS, Framer Motion) 📐 Pixel-perfect conversion of wireframes (Figma, XD, PSD) to Next.js / React 🔒 Crafting secure, scalable APIs (RESTful, GraphQL, WebSocket) 💾 Designing and developing databases with MySQL, PostgreSQL, or MongoDB 🧱 Designing and developing reusable React Components (Storybook) ⚙️ Building robust authentication and authorization systems 📧 Designing and developing Email Templates (React Email) 💵 Integrating payment gateways such as Stripe, PayPal, or 2Checkout 🪄 Implementing identity provider integration with Google, Facebook, or Microsoft 🎉 Seamlessly incorporating third-party APIs (RESTful, XML, WS) 🔥 Providing ongoing maintenance and support Here are some of my most recent achievements: 🔥 Designed and developed 15+ responsive pages (using Next.js and Tailwind CSS) and integrated them into 20+ GraphQL APIs and WS API, including authentication and PWA optimization for a Real-Time Chat Application that supports 1-1 and group conversations 🔥 Developed 100+ APIs and integrated over 10+ different 3rd-party providers including payment gateway integration with Stripe, PayPal, CoinPayments, and Payssion for Mobile Virtual Network Operator in the US 🔥 Designed and developed administrator dashboard and user flow pages (using React and Tailwind CSS) and integrated them into RESTful API for the NFC Card Management project in Australia 🔥 Converted 5+ pages of a legacy website into a new responsive React application for a construction company in Brazil Here is why you should choose me: ⭐ High-Quality Work ⭐ 100% Satisfaction ⭐ Over-delivery Guaranteed ⭐ Clear Communication ⭐ Daily Progress Updates ⭐ Clean Code, Best Practices ⭐ Lifetime Guarantee for written code 🏁 Let's discuss your project needs and how I can help you achieve your goals. 👋 Start TODAY by sending me a message, leave the rest to me. Keep in mind - satisfaction is guaranteed ;)GraphQL
MongoDBMySQLNode.jsNext.jsJavaScriptHTMLReactNestJSWebsocketsTailwind CSSWordPressCSSReduxWeb DevelopmentPHPTypeScriptAPIWeb Design - $35 hourly
- 5.0/5
- (8 jobs)
Hello, I'm Milos, full stack Javascript/Typescript developer with more than 10 years of experience. Also, skilled in web design for all devices. I believe I could be the right match for you. I am independent full stack developer, who loves to create pixel perfect, mobile friendly apps with special interest in best practices for User experience. I work fast and deliver high-quality code. Fluent in written and spoken English, easy to communicate with. On Upwork, I am "Top Rated Plus" developer with 100% success rate. My main fields of expertise are in: - (FE) Vanilla Javascript/Typescript, Angular (and VueJs), HTML5, css/scss (including Bootstrap, Material, Tailwind etc.), design development and implementation (primarily Figma). - (on BE side) NodeJs, ExpressJs, graphql, MongoDB, Postgres, REST API development. I have worked in various roles and positions. Some examples: - bettingexpert.com . I was lead full stack developer in a team of 6 developers. I was in charge of development of front end using Angular 2+, and back end using graphql/Apollo with microservices architecture behind it. Some of duties include: complex sport routing, Server Side Rendering, redesign and refactoring, page speed optimization, development of custom JS library for multilanguage support that would work on Server side rendered app, etc. - FE department Lead at Interprefy (global leader in online simultaneous translation - used by the UN, Europe Council etc.). I have started as an expert for upgrading old FE app written in AngularJS into modern Angular 8+ app. I worked as a remote developer together with a teams based in Ukraine and Swiss. After couple of months, I was promoted into FE department lead, working and managing 5 parallel projects, including: desktop app development with ElectronJS, integrations with Zoom and Adobe Connect, CI procedures development, and two smaller ones. On management level, I was engaged in decision-making about app future strategy and development. As freelance developer: - full stack solution for food delivery company based in Africa, using VueJS, graphql + postgresQL. - Real-time sales management system, for small/medium grocery chains - Infoshop solutions. Robust marketing full-stack solution for in-house grocery data collect, analysis and presentation. - Optimalwork, US based company for personal development. I was appointed to upgrade old AngularJS dev into new modern framework. After project was finished 3-4 months, they asked me to stay on the project and work on new design implementation, expressJS web server development, websocket implementation an on both FE and BE, new features development and many specific tasks that go beyond development. - qbee.io - Norwegian startup for IoT fleet management. Created design and implemented code in old Angular app for completely new UI - both style and functionality. Extrimely high-intensity project. - shimeba - indoor navigation in Hospitals - mobile view implementation, WCAG level AA implementation, 3d navigation using Mapbox, adding 3d vecor data and 3d models etc. ___ All other working references can be found on my LinkedIn profile - just search for Milos Brkljacic. If you are interested in working with me, please contact meGraphQL
Web DevelopmentWeb DesignUser ExperienceSCSSElectronAngularTypeScriptJavaScriptHTML5CSSNode.jsExpressJSBootstrapAngular Material - $24 hourly
- 5.0/5
- (16 jobs)
I am a full stack mobile and web developer with 4 years of experience, specializing in front-end development. I bring expertise in building cross-platform mobile apps using React Native and dynamic web applications using React/Next.js. Key Skills: ▪️ React Native: Development of responsive, cross-platform mobile applications. ▪️ React & Svelte & Next.js: Creation of high-performance, SEO-friendly web applications. ▪️ JavaScript & TypeScript: Advanced proficiency for building scalable applications. ▪️ HTML & CSS: Crafting pixel-perfect, responsive web designs. ▪️ Node.js: Building robust backend services and APIs. ▪️ MongoDB & MySQL: Database management and integration. ▪️ Figma: Translating design prototypes into functional user interfaces. Why Choose Me? ▪️ Top Rated: Consistently ranked in the top 10% of freelancers, with a 100% Job Success Score. ▪️ Client-Centered Approach: I prioritize clear communication, timely delivery, and meeting all client expectations. ▪️ Collaborative and Remote Work: Proven ability to thrive in remote environments, ensuring seamless teamwork and project success. ▪️ Pixel-Perfect Design: I focus on delivering visually appealing and user-friendly designs that align with your vision. If you’re looking for a developer who can bring your ideas to life with precision and innovation, I’m here to help you achieve your goals.GraphQL
WebsiteWeb ApplicationNode.jsReduxCSSHTMLUI/UX PrototypingAgile Software DevelopmentMongoDBReact NativeReactJavaScript - $30 hourly
- 4.9/5
- (2 jobs)
Highly experienced Senior full stack developer with 12 years of experience in designing, developing, and deploying various sizes of web and mobile applications that reached millions of users. Proficient in working with JavaScript and PHP in Agile environments, with exceptional collaboration skills in working closely with product teams, QA teams, and designers. A proven problem-solver with a deep passion for technology and a track record of delivering innovative solutions.GraphQL
PHPMaterial UITailwind CSSBootstrapLaravelVue.jsSQLNode.jsReactJavaScript - $40 hourly
- 5.0/5
- (1 job)
I am a seasoned software developer with over 10 years of experience, specializing in mobile development for iOS and Android, both native and cross-platform. My career has also embraced full-stack development, contributing to front-end and back-end technologies, and managing complete project lifecycles from inception to deployment. Alongside my development roles, I have applied my knowledge in a software architect capacity, ensuring the scalability and robustness of solutions. Having worked for globally recognized companies, I have contributed to the development of complex and widely-used applications. My technical expertise encompasses a diverse range of databases, from SQL to NoSQL solutions like MongoDB and Redis. While my primary focus has been on development, I have also honed leadership skills, mentoring teams, leading projects, and engaging in B2B negotiations and business relations. Driven by a commitment to excellence and innovation, I am dedicated to creating high-quality, impactful software solutions. My approach combines strategic vision with a keen attention to detail, enabling me to contribute effectively to any team while navigating the complexities of modern software development.GraphQL
TypeScriptAndroidMobile App DevelopmentApple XcodeReact NativeReactObjective-CSwiftNode.jsAndroid App DevelopmentKotliniOS DevelopmentJavaJavaScript - $40 hourly
- 5.0/5
- (10 jobs)
Full Stack Developer with solid technical background in the planning, design, development and deployment of mobile and web applications. Managed several mobile and web projects over the years, bringing valuable input to increase revenue and user engagement. If you want A+ quality mobile and web solutions, please pick up me. My goal is to make sure that my clients are 100% satisfied with the work that I perform and that their apps are built to increase usability, revenues, and user experience. I strive to provide the highest quality products and build long-term relationships with the clients. Mobile know-hows • Languages: Java, Kotlin, Objective-C, Swift, Javascript, C#, C/C++ • Hybrid development (React Native, Flutter) Web know-hows • Languages: Javascript, PHP, Python, HTML, CSS, JQuery • Frameworks: React.js, Vue.js, Laravel, Django, Webpack Backend know-hows • Node.js, Java, PHP, Python • API development (REST & GraphQL) • Design and Implementation of Database (MySQL, PostgreSQL, Firebase Realtime Database, Firestore, SQLite, MongoDB) I am available for full time (24/7) and ready to start immediately. Feel free to contact me at any time. Thanks.GraphQL
Mobile App DevelopmentReact NativeFirebaseObjective-CPythonPHPJavaNode.jsReact - $45 hourly
- 5.0/5
- (4 jobs)
🌐 Experienced Full Stack Web Software Engineer | Team Lead | Problem Solver I'm Ivan, a seasoned Full Stack Web Software Engineer with over 6 years of hands-on experience. I have a strong background in both team leadership and problem-solving. With an MSc in Artificial Intelligence and a bachelor's degree in Applied Computer Science, I combine academic knowledge with practical expertise to deliver impactful solutions. My Expertise: 🛠 Full Stack Development: Proven track record as a Full-Stack Software Engineer, proficient in crafting end-to-end solutions that span both frontend and backend technologies. 🚀 Team Leadership: Currently serving as a Team Lead, I thrive in collaborative environments, fostering teamwork, and promoting knowledge sharing among team members. 💡 Pragmatic Thinking: Known for my pragmatic approach to problem-solving, ensuring efficient and effective solutions that align with project goals. 🎓 Academic Background: Master's degree in Artificial Intelligence coupled with a solid foundation in applied computer science. Selected projects 𝗗𝗶𝗳𝗳𝗰𝗼 (𝗘𝗱𝗧𝗲𝗰𝗵 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺): Developed a scalable educational platform supporting thousands of users, playing a key role in both backend (Django) and frontend (React) architecture. 𝗗𝗲𝗺𝗼𝘀𝘁𝗮𝗰𝗸 (𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗦𝘁𝗮𝗿𝘁𝘂𝗽): Raised $31M Led a cross-functional team to build and scale a demo platform for SaaS companies, integrating multiple services into a seamless experience. 𝗜𝗻𝘃𝗶𝗴𝗴𝗼 (𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺): Architected and built critical microservices and API gateways, helping scale a system with 150,000 daily users, improving both performance and user experience. Expertise 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: JavaScript, Python 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 & 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: React, NodeJS, Django, React Native, Electron 𝗖𝗹𝗼𝘂𝗱 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: AWS (Lambda, S3, EC2, RDS), Docker, Terraform 𝗔𝗱𝗱𝗶𝘁𝗶𝗼𝗻𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: GraphQL, Redis, PostgreSQL, MongoDB Let’s connect and discuss how I can contribute to your project! 📧 Contact me today.GraphQL
Redux SagaMongoDBPostgreSQLAWS CloudFrontAWS LambdaElectronTypeScriptHTML5Node.jsReact NativeReactJavaScriptDjangoPython - $50 hourly
- 5.0/5
- (17 jobs)
👋 Hi, I'm a dedicated Software Developer specialized in building modern and interactive web and mobile applications for over 4 years in the industry. As a Top Rated freelancer on Upwork, I've completed and led multiple projects in the past. For more references check my account reviews and feedback to feel the level of quality I produce. Using technologies like React, React-Native, Next.js, and Node, I strive to deliver efficient and effective solutions leveraging industry best practices, creating seamless user experiences that are both visually appealing and highly functional. If You're Looking For: ✅ Full-Stack Mobile and Web App Development ✅ Cross-Platform Development ✅ SEO Friendly Websites using SSR and SSG technologies ✅ WordPress Website ✅ UI/UX Design ✅ Frontend Development ✅ Backend Development ✅ Database Integration ✅ Third-Party API Integration ✅ Deployment and Maintenance Or Have Questions? Feel Free to Reach Out! 📩 🔥 Skills🔥 ✅ Javascript / TypeScript / Node.js / Deno.js / HTML / CSS ✅ React / Next.js / Astro / Nest.js /Express.js ✅ React Native / Expo / Xcode / Android Studio ✅ Redux / Redux Toolkit / React Query / Zustand / Mobx ✅ Tailwind / MaterialUI / ChakraUI / CSS-in-js / SASS / Storybook ✅ Firebase / AWS / Strapi / MongoDB/ SQL ✅ RestAPIs / GraphQL / Prisma / tRPC / SSR / SSG ✅ Jest / Cypress / Detox ✅ CI/CD / Git / Monorepo Looking forward! Stefan.GraphQL
HTMLCSSFirebaseSQLMongoDBTailwind CSSExpressJSExpo.ioJavaScriptTypeScriptNode.jsNext.jsReduxReact - $40 hourly
- 5.0/5
- (6 jobs)
I am highly experienced in full-stack web development, focused on React/Vue/Blazor for front-end and .NetCore/Laravel/Node as a backend. Fully capable to build complex requirements and data structures from the ground up into a solution. I love technology, working with people, and building. In addition to a passion for mentoring Engineers, I design, develop and support customer-facing software in a variety of technologies, and have expertise in AWS Cloud architecture and development. Some highlights of my qualification and experience include: - Laravel, Node, Express - React, Redux, MUI, Next - Vue, Vuex, Vuetify, Nuxt - ReactNative, Ionic + Cordova / Capacitor - MongoDB, PostgreSQL, MySQL, MSSQl, Firebase / Firestore - C#, NetCore, .Net MVC, Blazor, Azure Storage, Servicestack, Entity framework - Git, Docker, Gitlab CI/CD Pipelines - AWS services - Stripe, GraphQL, Twilio - HTML5, CSS3, SCSS, JavaScript, TypeScript Please feel free to contact me if my skills are a match.GraphQL
Node.jsVuetifyReactTwilio APIReact NativeExpressJSTypeScriptStripe APIAWS ApplicationLaravelReduxVue.jsWeb ApplicationVuex - $50 hourly
- 5.0/5
- (1 job)
Success is just my Goal. I am here to help you succeed in your business. I am a senior MERN and Laravel+Vue.js developer. Willing to help you with my strong development technical knowledge and experience. FIELDS THAT I CAN HELP; ✅ Resolving difficult technical problems and fixing bugs ✅ Build your web or mobile products from the scratch or extend it ; ✅ Improve and manage your web and mobile projects successfully with new features; ✅ Working with team players and suggest good ways of improvement MY TECH STACKS ✅ Front-end development: React/Redux/Next.js , Angular, Vue.js/Vuetify/Nuxt.js; ✅ Back-end: Laravel, NodeJs, Java(Spring Boot), Python; ✅ Rest API, GraphQL, Fast API; ✅ DBs: MS SQL, PostgreSQL, MongoDb, My SQL, Redis, MariaDb; ✅ Mobile development: ReactNative, Flutter, Swift; ✅ Cloud platforms: AWS, Google Cloud Platfom, Azure; Thanks for your consideration. Best regards!GraphQL
MERN StackNestJSRESTful APICodeIgniterNode.jsReactJavaScriptAngularVue.jsNext.jsHTMLLaravelVuetify - $35 hourly
- 5.0/5
- (1 job)
Major skills are as followings: Front-End: React, TypeScript, Angular, Vue.js, GraphQL, HTML/CSS/JavaScript, Sass/Scss/Less Back-End: PHP/Laravel, Node/Express JS, Python/Flask, Django, API Integration. Database: MySQL, MongoDB, SQLite, PostgreSQL CMS: WordPress. Mobile : React Native, Kotlin. I was take part in 40 big projects and finished them successfully.GraphQL
AmazonMERN StackAndroid App DevelopmentTypeScriptDockerAngularDjangoMySQLLaravelVue.jsPostgreSQLAPI IntegrationWordPress - $40 hourly
- 5.0/5
- (1 job)
I'm an aspiring developer and IT specialist with 8+ years of experience in IT support, freelance web app development and blockchain development. As a full-stack developer, I have an abundance of experience in web development with a focus on Javascript/Typescript. For the last few years, I've been collaborating with a variety of companies from small startups to medium communities-making me intimately familiar with all the aspects of the web lifecycle from the initial architecture to final deployment. Throughout my software engineer career, I've gained extensive knowledge of front-end with Javscript and worked with various APIs using popular frameworks, libraries and databases such as React, Redux, Next.js, React Hooks, Vue.js, Nuxt.js, MEAN/MERN stack, MySQL and MongoDB. I've currently been focusing my skills on blockchain technology and recently have developed several Non-fungible Token(NFT) markets, NFT wallets and Dapps using Solidity, Ethereum, and Smart Contracts. Also have developed P2E games on Solana. My deep full-stack experience also include Cloud Service migration through AWS, Azure, and Google Apps as well as Linux and Windows Server Administration. I'm not new to the remote freelancing so I'm extremely flexible with my working hours. Send me a message so we can discuss what you're looking for. Thank you!GraphQL
SolanaDAppsTailwind CSSVue.jsRustJavaScriptTypeScriptSolidityBlockchainReactSmart ContractNext.jsLinux System AdministrationPython - $35 hourly
- 4.7/5
- (3 jobs)
Hello! I am a Full-Stack Web Developer with 7+ yrs of experience in Building Scalable and Responsive Web and Mobile Apps with ReactJS, React Native, PHP Laravel, Node.js, Python I have strong skills in both front-end and back-end web development. I use HTML, CSS, JavaScript and ReactJS, VueJS, Angular for the front-end, and PHP Laravel, Node.js, Python for the back-end. I also use React Native for building cross-platform mobile apps. I am proficient in using databases such as MySQL, PostgreSQL and MongoDB, as well as APIs and web services My skill set includes: - React.js, Next.js, Angular, Vue.js, Nuxt.js, Redux, Vuex - React Native - Tailwind CSS, Bootstrap UI, Material UI - Node.js, Nest.js, express.js - PHP Laravel, Nova, Livewire, Alpine.js - Python, Django - Micro Service, REST API, GraphQL, Apollo Client - MySQL, PostgreSQL, MongoDB, Apache Casandra - Docker - AWS, Google Firebase, Supabase If you are looking for a reliable and creative full-stack web developer who can turn your ideas into reality, look no further. I am ready to start working on your project today. Just send me a message or invite me to your job and let's get started!GraphQL
Next.jsVue.jsRESTful APINestJSLaravelPythonTypeScriptJavaScriptPostgreSQLReact NativeReactMySQLNode.jsAngular - $60 hourly
- 5.0/5
- (1 job)
As a highly experienced software engineer and developer with a 8-year track record, I have a strong proficiency in managing, developing, and deploying robust applications across various domains including SaaS, eCommerce, tech startups, and enterprise organizations. My expertise lies in two main areas: building single-page web applications using ReactJS, VueJS, and AngularJS with RESTful backends, as well as developing mobile apps using React Native. In addition to my technical skills, I bring a wealth of knowledge in project management, Scrum, service delivery, and Agile coaching. With a strong focus on quality assurance and software engineering best practices, I am proficient in a wide range of technologies including Node, Python, Ruby, Laravel, and JavaScript. My well-rounded skill set and experience enable me to deliver exceptional results while ensuring project success and customer satisfaction.GraphQL
FigmaCMS DevelopmentReact NativeGitHubTailwind CSSRESTful APILaravelVue.jsNode.jsBootstrapTypeScriptJavaScriptReact - $36 hourly
- 4.7/5
- (2 jobs)
Experienced full-stack developer with expertise in building dynamic and responsive web applications. Proficient in SQL, React, Next.js, Angular, Vue.js, Javascript, and API development, focusing on creating scalable and maintainable code. Passionate about delivering high-quality results and collaborating with team members to drive project success. My expertise: - Skilled in utilizing front-end technologies like HTML, CSS, and JavaScript to create engaging and user-friendly interfaces. - Adapt at designing and optimizing database schemas, writing complex queries, and extracting valuable insights from large datasets. Experienced in developing RESTful APIs that adhere to industry best practices for secure and efficient communication using NodeJS, Laravel, Python Django backend programming languages. - Demonstrated proficiency in agile development methodologies, version control systems, and project management tools like Git. - Excellent communication skills, facilitating effective collaboration with cross-functional teams and stakeholders. - Detail-oriented and quality-focused, ensuring adherence to best practices and conducting thorough testing to ensure reliability and user satisfaction. - Passionate about security and implementing secure coding practices to mitigate vulnerabilities. Experienced in deploying applications on cloud platforms like AWS, Digital Ocean, MS Azure and Heroku. - Strong analytical and problem-solving skills, gathering and analyzing user requirements to deliver solutions that align with business goals. - Thrives in both independent and collaborative work environments, working effectively with cross-functional teams to deliver cohesive and successful projects. Hope to work with you in the near future!GraphQL
HerokuREST APINestJSPythonPHPNext.jsTypeScriptAmazon Web ServicesMySQLPostgreSQLVue.jsReactRubyJavaScript - $40 hourly
- 5.0/5
- (3 jobs)
I'm a passionate and innovative developer with over 13 years of experience in the IT industry. I have a deep understanding of JS/TS , Python, Java, and many other programming languages. I'm also a master of full-stack web development, being extremely familiar with frameworks like React, Django, Spring and Laravel. Plus, here are some additional services I deliver: - MERN - React-Native & Flutter - Ruby on Rails - Drupal - AWS Programming - Ruby on Rails and Go Development - Shopify - Web Scraping - Chrome Extension - VS Code Extension - Telegram Bot - Automation I'm a strong advocate for test-driven development and agile methodology, and I always deliver high-quality and reliable products to my clients on time. I pay close attention to detail, and I always strive to produce readable and reusable code through consistent refactoring and review. I'm always looking for new challenges and opportunities to expand my skillset. I'm also a strong communicator and team player, and I'm always willing to help others. I'm particularly interested in projects that use technology to solve real-world problems. If you're looking for a developer who is passionate about their work and committed to delivering high-quality results, I'd love to chat with you. Thanks for your time!GraphQL
React NativeFlutterSmart ContractSolidityRuby on RailsAngularJavaPHPPythonJavaScriptAWS AmplifyNode.jsVue.jsReact - $62 hourly
- 5.0/5
- (1 job)
Aleksandar is a senior full-stack developer with over 10 years of experience in software development across various industries, with the 5 most recent years focused on React and TypeScript. He is well-respected amongst industry-leading companies as a skilled developer who truly understands the client infrastructure and pain points. Aleksandar also has the hands-on, technical aptitude needed to design and build out solutions.GraphQL
ContentfulREST APIReact NativeTailwind CSSReduxNext.jsJavaScriptTypeScriptAngularVue.jsNode.jsPythonBootstrapReact - $45 hourly
- 4.8/5
- (3 jobs)
Hello, I'm Borko, a seasoned Full Stack Developer with a strong emphasis on mobile app development. With over 7 years of experience in the tech industry, I bring a wealth of expertise in creating robust and innovative solutions. Skills: - Frontend Technologies: - Flutter (Flutterflow), React, Angular - UI/UX design with Figma - Responsive design using Bootstrap and Tailwind CSS - Backend Technologies: - Node.js, Express.js, Django, Spring Boot - Database management with MySQL, MongoDB - Mobile App Development: - Proficient in Flutter for cross-platform mobile app development - Experience in native Android and iOS development - Integration of RESTful APIs for seamless data exchange - Web3 / Blockchain development: - Defi, Dapp, Dao - Smart contract, Liquidity pool, Bridges, Swaps - Solidity, Rust, Ethereum, Near, Solana, Starknet, Polygon, Ether.js, Web3.js ... - DevOps and Deployment: - Docker for containerization - Kubernetes for orchestration - Deployments on Vercel and other platforms - AI/ML Integration: - Knowledge of TensorFlow, PyTorch, GPT-3 - Integration of AI features like Computer Vision and Natural Language Processing Tools: - Version control with Git - Collaboration using Figma and Webflow - Content management with WordPress and Flutterflow - E-commerce development on Shopify Languages: - Proficient in Python, JavaScript (Node.js, React, Angular), Dart (Flutter) - Familiarity with Java, TypeScript, HTML, CSS Why Choose Me: I am not just a developer; I am a problem solver. My goal is to create solutions that not only meet technical requirements but also exceed user expectations. With a passion for staying updated on the latest technologies, I am committed to delivering high-quality, scalable, and visually appealing applications. Let's collaborate and turn your ideas into reality!GraphQL
BlockchainSolidityReact NativeRESTful APISasswebpackAPI IntegrationTailwind CSSTypeScriptJavaScriptNext.jsAmazon Web ServicesNode.jsReact - $55 hourly
- 5.0/5
- (1 job)
I am a dedicated web developer with a focus on backend development, bringing expertise in a variety of projects, including Web3 and blockchain technologies. Committed to crafting websites that seamlessly blend functionality with aesthetics, I constantly strive to enhance my skills to deliver outstanding results. With a passion for pushing the boundaries of web development, I am a seasoned developer capable of tackling diverse projects and creating exceptional digital experiences. • Proficient in JavaScript and TypeScript, with hands-on experience in Node.js and Express.js for server-side development. • Skilled in database technologies including Redis, SQL (PostgreSQL, Sequelize), and MongoDB. • Extensive knowledge of REST and GraphQL for efficient API development. • Solidity proficiency for blockchain smart contract development. • Python and Django expertise for robust backend solutions. • Competent in cloud computing platforms, particularly AWS, with experience in Docker and Kubernetes for containerization. • Proficient in Jenkins for continuous integration and deployment. • Strong front-end development skills using React, React Native, Redux, Next.js, and Gatsby. • Familiarity with JAM Stack, Strapi, Shopify, and Storybook for modern web development. • Skilled in HTML5, CSS (including Sass, Bootstrap, Material UI, Tailwind), and Dart/Flutter for cross-platform mobile app development. • Knows HTML and CSS3, PHP, jQuery, Wordpress, and SEO. • Full project management from start to finish. • Regular communication is important to me, so let’s keep in touch.GraphQL
JestReact NativeGolangDockerAWS LambdaMongoDBSQLExpressJSNestJSNode.jsNext.jsReactTypeScriptJavaScript - $50 hourly
- 5.0/5
- (2 jobs)
I have abroad skill set in development of distributed computing to Blockchain technologies. I have got 8+ years of experience with Solidity, Solana, Web3, Defi, etc. I am a unique ability of understanding and engineering business requirements into development roadmaps.GraphQL
Tailwind CSSNext.jsCosmos OSLaunchpadDeFiReactNFT MintingTypeScriptSolanaNode.jsPythonRustSmart ContractSolidity - $40 hourly
- 5.0/5
- (1 job)
With over 9 years of experience in web and mobile development, I specialize in React and React Native, complemented by expertise in other JavaScript frameworks such as Node.js, RESTful API, and GraphQL. My focus is on delivering robust, scalable solutions while adhering to clean code principles and industry best practices. I am passionate about crafting exceptional digital experiences and thrive in dynamic, innovative environments.GraphQL
PostgreSQLMySQLMongoDBGitREST APIExpressJSNode.jsExpo.ioNuxt.jsVue.jsNext.jsReact NativeReact - $45 hourly
- 5.0/5
- (1 job)
Senior Full Stack Engineer with 12+ years of experience in building scalable web, backend, and mobile applications. Proficient in modern technologies like JavaScript, React, Node.js, Redux, and AWS, as well as mobile frameworks like React Native and Flutter. I specialize in crafting efficient, high-performance solutions, implementing microservices, and developing CI/CD pipelines to streamline deployments. Passionate about creating seamless user experiences and mentoring teams to achieve excellence. Let’s work together to bring your vision to life!GraphQL
MicroserviceMongoDBCI/CDFlutterReact NativeKubernetesDockerAWS LambdaNext.jsReduxNode.jsReactTypeScriptJavaScript - $40 hourly
- 5.0/5
- (39 jobs)
I am 6+ years in commercial development, I can build complex solutions, and I always pay close attention to details and use best practices. Working as a friendly and active member in a team, experienced in leading a team and also as a sole developer. Very good track in communicating directly with clients/ product owner and in gathering requirements. Having Computer Science & Engineering graduation, fell in love with software development and still enjoying it! EXPERTISE: - Vue.js, Vuex, Vuetify.js, Nuxt.js - Angular, AngularJS, NgRx, RxJS - React.js - Node.js, Express, Sails, Hapi - JavaScript, ES 6+, TypeScript, JQuery - PHP, Laravel, Yii, Wordpress - Firebase (Database, FireStore), MongoDB, PostgreSQL, MSSQL, MySQL, Sequelize - D3.js - Google Maps, ESRI, OpenLayers - BackboneJS, Sencha ExtJS - Quickbook - HTML 5, CSS3, Sass/Less - AWS S3, EC2, Lambda - TravisCI, Netlify - Agile, Scrum - Github, GitLab, Asana, Trello Thank you for your time and attention! I'm looking forward to working with you!GraphQL
React NativeVue.jsAngularPHPNode.jsReactWordPressAmazon Web Services - $50 hourly
- 4.8/5
- (14 jobs)
⭐Hello , As I am a talented developer, I have rich experience in Front end and Backend development. Working since 2013, 5+ years experience across a wide variety of technologies. Excellent in both creating complex, highly scalable backend services and designing Pixel-perfect, complicated UI. My main skills: ✅ Ecommerce: - Shopify, BigCommerce, CMS commerce plugin ✅ Frontend: - React / Redux / GraphQL / Gatsby / Next.js, - Angular 2/4/5/6, - VueJS / Vuex / Vuetify - Material UI, Core UI, Semantic UI - jQuery, Twitter Bootstrap 3/4, Less/Sass, CoffeeScript, TypeScript ✅ Backend: - C#, .NET, ASP.NET Core, Entity framework, LINQ. - Python, Django Django Restframework. - NodeJS, ExpressJS, Loopback. ✅ Databases: - Postgresql, Mysql, mongoDB, MS-SQL, SQLite ✅ Build tools: - Webpack, Gulp, Grunt, Rollup ✅ DevOps: - Docker, Shell/bash scripting, cron jobs, supervisor ✅ Web servers: Apache, Nginx ✅ Project management: - Git, Bitbucket, Jira, CodeGiant, Trello, Asana ✅ Methodologies: - Agile / Scrum / Kanban Cheers, Milorad B.GraphQL
PythonShopifyGatsby.jsAngularJSD3.jsNode.jsJavaScriptReact - $16 hourly
- 5.0/5
- (6 jobs)
Getting dirty instead of you! Over 5 years of experience: • Developed and maintained a large PHP application with over 2 million monthly users • Worked with Symfony, Laravel, Codeigniter, and a custom framework • JavaScript, Bootstrap • MySQLGraphQL
CSSBootstrapjQueryJavaScriptCodeIgniterLaravelMySQLDockerDoctrine ORMSymfonyPHP - $40 hourly
- 0.0/5
- (0 jobs)
I have 2 years of full experience Web/Mobile Development using React.js/React Native. I deliver simple web solutions for complex challenges. Services & technologies: * React/Redux and React Native Apps * JavaScript (jQuery, backbone, e6) * Laravel, php * Python, Django, scrappyGraphQL
React NativeJavaScriptReactWordPressHTML5CSSPythonPHP - $35 hourly
- 0.0/5
- (0 jobs)
I am a distributed applications architect, researcher, and a software engineer. As a university lecturer and post-doctoral researcher with a PhD in computer science, I have a strong analytical approach to problem-solving which yields practical and effective solutions. My communication and coordination skills were developed throughout a six-year senior lead developer and consultancy stint in various software engineering projects from diverse business domains. - Experience JavaScript, 12 years Java, 7 years Python, 6 years Microservices, 4 years Go, 3 years Node.js, 3 years Blockchain, 1 year Ethereum, 1 year Skills - Languages Python, JavaScript, Java, R, PHP, Go, C#, Solidity - Libraries/APIs Pandas, Keras, D3.js, Web3.js - Tools Pytest, Tableau - Paradigms REST, Microservices, Object-oriented Programming (OOP), Microservices Architecture, Model-driven Development, Concurrent Programming - Storage PostgreSQL, Neo4j, MySQL, MongoDB - Other Cloud Computing - Frameworks Ionic 3, Angular, Unity, Truffle - Platforms Java EE, Ethereum, BlockchainGraphQL
DevOpsNode.jsSpring BootMongoDBMicroserviceRuby on RailsDjangoLaravelReact Want to browse more freelancers?
Sign up
How hiring on Upwork works
1. Post a job
Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.
2. Talent comes to you
Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.
3. Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
4. Payment simplified
Receive invoices and make payments through Upwork. Only pay for work you authorize.