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React Developer | Full Stack Developer | React Node - 100+ shipped projects taught me one thing: clients don’t need more code, they need products that load fast, scale safely and make money 👋 Hey, there! My expertise centers around elevating companies and startups with robust, scalable web solutions, leveraging advanced front-end technologies like React and Next.js. Our engineering team is hungry 🍽 to solve your needs through in-time delivery of high-impact tech solutions - whether you need a custom platform ⚙, a revamped UI 🛡, or a powerful enterprise application. React & Full Stack Track Record 10+ Years of Experience as a React Developer & Full Stack Developer |100+ Delivered Projects | 30+ Enterprise Platforms | 20+ High-Load Applications | 25+ eCommerce Solutions Trusted by Founders & Teams ⭐ “We hired CreativeIT because we weren’t happy with our previous developer’s performance. CreativeIT successfully completed a working app.” Dan Douglas, Co-founder, Deep English, USA. ⭐ “We’re very happy with their working methods.” Valery L, CTO, Starly[dot]io, Baltic states. ⭐ “CreativeIT picked up where a previous vendor left off. They looked at the existing code and designs and created a plan for how to move forward.” Elliot Ledley, Project Manager at 2Shoes, USA. ⭐ “CreativeIT’s ability to provide a complete product in a timely fashion was most impressive. In addition, communication was always clear.” Michael Oppel, CFO at Audience Response System, USA. ⭐ “The team's ability to work fast impresses us!”. Director SE, Hospitality & Leisure (Germany). As a react developer ( full stack developer ) working alongside roles like project and delivery manager, full stack web developer, wordpress developer, and full stack developer react specialist, I collaborate closely with stakeholders to bring ideas to life. My portfolio includes enterprise platforms, custom web design solutions, scalable full stack web developer applications, and mobile products where I act as a mobile app developer and react native developer delivering iOS and Android apps. I contribute as a python developer, working with python, fastapi, and backend services, while supporting integrations through stripe and scalable architectures. My experience spans wordpress ecosystems, laravel vue projects, and solutions using ruby on rails, ensuring flexibility across different business needs. Also as an expert full-stack developer I worked with php, laravel, react and web design. Why choose me: ✅ Top Rated on upwork as a React Developer & Full stack developer, delivering high-caliber code alongside strong business expertise. ✅ Proactive, delivery-focused - honoring tight schedules while optimizing for maximum ROI. ✅ Flexible - I collaborate across full stack, web development, website design, ui/ux design, and game developer projects. ✅ Time & Material basis - pay only for productive hours. My strong side as a Full Stack Developer React UI developer 🔥 Front-end: javascript, React, react typescript, angular, vue, redux, zustand, mobx, graphql, html5, css3, material ui, and tailwind css. 🔥 Back-end: node.js, next.js, nest.js, express, fastify, php, laravel vue, ruby on rails, python, and fastapi. 🔥 Databases: postgres, mysql, redis, mongodb. 🔥 Cloud: firebase, docker, aws, and supabase. 🔥 Enterprise: c# azure function app services for scalable backend processing. With 10+ years of experience, my expertise centers around elevating companies and startups with robust, scalable web development solutions, leveraging advanced technologies - React, React TypeScript, Next.js React, and Vue - alongside strong coding practices in JavaScript, PHP, and Python. I also work confidently across React python projects where modern frontend interfaces need to connect with scalable Python-based backends. As a Cursor developer ( full stack cursor, supabase cursor ) specializing in Veeva solutions for museums and art curators, I help bring art and cultural heritage to life through technology. From designing custom apps and digital catalogs to optimizing workflows and preserving collections, I enable art institutions to connect with their audiences in a more interactive, insightful, and efficient way. 🤝 Let's collaborate! Contact me for a project audit, technical consultation, or to develop a roadmap for your project - whether you need a custom platform, sophisticated enterprise application, or a well-designed website. Looking forward to a long-term, win-win partnership. Cheers from Vilnius, Raman

Hi, I’m Saulius, a React Native Developer with 8+ years of experience in building high-quality mobile and web applications. I help startups and businesses turn their ideas into fast, reliable, and user-friendly mobile apps for iOS and Android. I specialize in React Native (CLI & Expo) and also have strong Full Stack development experience, which allows me to manage both the mobile app and backend systems smoothly. I also work with AI integration and Generative AI, helping businesses add intelligent features to their web and mobile applications, such as AI chatbots, automation tools, and AI-powered features. 🔥 Industries Served 🏥 Healthcare | 📚 Education | 🏠 Real Estate | 💳 FinTech | 🛒 E-commerce | 🖥️ SaaS | ✈️ Travel & Hospitality 💪𝐖𝐡𝐚𝐭 𝐈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐈𝐧 🔥𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ✔ Cross-platform iOS & Android apps ✔ Expo & Expo Router ✔ TypeScript & modern JavaScript architecture ✔ Redux, Zustand & Context API ✔ Reanimated & smooth UI animations ✔ Clean, scalable & maintainable code 🔥𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 ✔ Firebase / Supabase integration ✔ Authentication (Email, Phone, Google, Apple) ✔ Firestore, Realtime DB & Cloud Functions ✔ REST APIs & third-party SDK integration ✔ Push notifications & real-time updates 🔥𝐀𝐩𝐩 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 & 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 ✔ Speed & memory optimization ✔ Bug fixing & feature upgrades ✔ Crash-free scalable architecture ✔ Long-term performance stability 🔥𝐀𝐩𝐩 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 & 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞 ✔ iOS TestFlight & App Store submission ✔ Android Play Store publishing ✔ Build management, signing & versioning ✔ Ongoing updates & technical support ✅ Why Folks Stick With Me: 📞 Available for daily stand-up calls 📊 Submit daily work reports 🌍 Communicate in your timezone 💬 Clear and quick communication 🎯 Work with a product mindset 💡 Ready to get started? Let’s turn your vision into reality! Whether you're a startup or an enterprise. 🎯 Feel free to reach out so we can discuss your project and explore how I can help you achieve success. 📩 🟢 Press the "𝗜𝗻𝘃𝗶𝘁𝗲" button and let's discuss your project! ✅Keywords React Native Developer | React Native App Developer | React Native Expert | React Native CLI | React Native Expo | Mobile App Developer | Cross-Platform Mobile App Developer | iOS App Developer | Android App Developer | Hybrid Mobile App Developer | Full Stack Developer | MERN Stack Developer | Build React Native App | React Native Bug Fixing | React Native Performance Optimization | React Native App Upgrade | React Native App Redesign | React Native UI Development | React Native API Integration | React Native Firebase Integration | React Native Authentication | React Native Push Notifications | React Native Payment Gateway Integration | React Native Real-Time App | React Native Database Integration | React Native Mobile App Development | JavaScript Developer | TypeScript Developer | React Developer | Next.js Developer | Tailwind CSS Developer | HTML5 Developer | CSS3 Developer | UI/UX Developer | Node.js Developer | NestJS Developer | Express.js Developer | REST API Developer | Backend Developer | API Integration | MongoDB Developer | PostgreSQL Developer | MySQL Developer | Firebase Developer | Supabase Developer | AWS Developer | Docker Developer | CI/CD Developer | GitHub Developer | Cloud Deployment

Transforming requirements into products in a clear and rapid manner. Developing software since 2013, I have accumulated an extensive set of skills. With professional experience in the industry and numerous projects on and beyond Upwork, as well as getting awards in 20+ hackathons across Europe and running a startup myself, I understand the importance of teamwork, task distribution, mutual respect, and continuous on-time product delivery. Tech stack: ~~~ ChatGPT ~~~ | Languages: Swift, Objective-C, Python, JavaScript, HTML+CSS, Java, C, C#, Bash; | Libraries: Tensorflow, Alamofire, OpenCV, NumPy, matplotlib, OneSignal; | IDEs: Xcode, Android Studio, PyCharm, Webstorm, IntelliJ, Unity, Visual Studio; | Databases: Firestore, Firebase RTDB, SQLite, PHPMyAdmin, PostgreSQL; | Integrations: Twilio, Firebase, Branch, Facebook SDK, Zapier, Mailchimp; | Graphics/rendering tools: Adobe Photoshop, Sketch, Zeplin, three.js; | Frameworks: React, React Native, Express.js, Django, Flask; | Issue/version tracking: Trello, Jira, GitHub, Bitbucket; | CSS rendering: less/sass, styled components; | Analytics: Firebase Analytics, Mixpanel; | UI Frameworks: Semantic UI, Antd; | Run-time environments: Node.js; | Cloud Services: AWS, CloudKit; | OS: Linux, MacOS, Windows; | Mapping platforms: Mapbox; | Dependencies: CocoaPods; | CMS: WordPress. I specialize in creating robust and scalable solutions, ensuring transparency and responsibility throughout the development process. By leveraging my skills, I aim to deliver high-quality products that meet client needs efficiently and effectively.

Web developer with solid 8 years of experience, specializing in NodeJS and Python. Familiar with modern software development practices. Result oriented. Good knowledge of cybersecurity, Linux and generative AI. Core skills: NodeJS + TypeScript React Framework TailwindCSS Linux maintenence Bash automation Expo mobile app development MongoDB/PostgreSQL + Prisma Docker + Kubernetes Generative AI Google Cloud and AZURE devops Secure coding practice Next.js development GraphQL Microservices API development Figma desgin2code Website performance optimization Technical SEO Web scraping, scripting and automation Python PHP (Wordpress and Processwire) E-commerce (Woocommerce, OpenCart, PrestaShop) Throughout my career, I have worked with a diverse range of industries, including marketing and communications, entertainment, e-commerce, human resources, animal services, and real estate. My portfolio includes building landing pages, plugins, API integrations, and product catalogs. I strive to deliver projects as efficiently as possible. Justinas