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JavaScript Fullstack Developer - React, React Native, Flutter, Angular, Ionic, Node.js Hi! My name is Maryna and I am a professional javascript developer with 9+ years track record. And I lead the team of JavaScript ninjas - Codemotion, the Best Upwork Agency in Kyiv, Ukraine in Web&Mobile Development from 2018 🏆 We don’t just code - we solve your business needs. Effectively and on time. Launch your project on schedule! We are a team of Ninja Developers focused on JavaScript. We deliver complex web and mobile applications development using React, React Native, Flutter,Angular.js, Ionic, Vue.js, TypeScript, Node.js Services • CTO as a Service • End-To-End product development for Startups • AIAD - AI assisted development as a structured, senior-controlled delivery system • Team extension Why us • Ninja style - the mission will be accomplished, you can just enjoy the delivery and the demos • Care about relationships. “Clients for life” and “same boat” approach • Close collaboration - the more you're involved the better the result is • Deliver 101% result with Agile • Great at remote work with various time zones • Our developers are fluent in English and learn skills extremely fast Company Profile • Providing development services starting from 2016 • Headquarters and R&D in East Europe, the sales office in the USA • 120+ team members (Senior 30%, Middle 55%, Junior 15%) and keep on growing • We take care of the team – awarded "Best IT employer in Ukraine" by the most trusted Ukrainian IT resource DOU.ua Need a fast and effective MVP launch? Need a consultancy for your startup? Codemotion to the rescue! We cover: • React (ReactJS, React.js) • React Native (ReactNative) • Flutter • Node.js (Node, NodeJS) • Angular (AngularJS, Angular.js) • Vue.js (Vue, VueJS) • TypeScript (Type Script) • Meteor (MeteorJS, Meteor.js) • Ionic

Senior AI & Full-Stack Certified Engineer Python| Django | Data Sciencе and МL| Vue.js | Next | Nuxt | Node.js | React Are you looking to build an advanced, AI-driven platform with an ultra-fast, seamless user experience? I specialize in bridging the gap between cutting-edge Artificial Intelligence and high-performance web applications. With over 7 years of commercial experience, I am a Certified Vue.js & Node.js Expert with deep Backend engineering skills (PHP, Node.js, REST APIs). My core strength is developing scalable full-stack architectures and integrating intelligent Generative AI features, such as custom AI chatbots, multi-provider systems, automated quoting tools, and smart user workflows. Where I Bring the Highest Value: - AI Integration & Features: Building AI-driven SaaS marketplaces, implementing smart interactive chatbots (ChatGPT API), and automating complex business logic using AI tools. - Advanced Frontend Engineering: Creating high-performance, responsive UIs with Vue.js (2/3), Nuxt.js, React.js, and Next.js. Expert in SSR optimization, state management (Vuex/Redux), and TypeScript. - Scalable Backend & Infrastructure: Designing robust backend systems with Node.js/PHP, managing complex user databases (MongoDB, PostgreSQL, MySQL), and handling legacy-to-modern migrations without downtime. Selected Project Highlights: - AI-Driven SaaS Marketplace: Engineered a complex multi-provider platform from scratch, integrating automated quoting tools, booking calendars, and custom AI chatbot interfaces. - Enterprise High-Load Platforms: Successfully migrated legacy webinar platforms to Nuxt-based static architectures, significantly accelerating page load speeds, enhancing Core Web Vitals, and maximizing SEO. - Subscription-Based Web Apps: Built secure, scalable social networking and educational platforms tailored for content monetization and seamless i18n internationalization. Why Choose Me: - 100% Job Success & Top Rated Plus: Backed by the technical excellence of the Greenice team, ensuring top-tier communication, clean code structure, and zero-crash deployment. - Clean & Scalable Code: I don’t just build features; I construct architectures that grow with your business and remain easy to maintain. Let’s elevate your platform with powerful UI and smart AI capabilities. Click "Invite to Job" to discuss your project requirements and technical stack!

Greetings! 👋 𝗜 𝗮𝗺 𝗮 𝗹𝗲𝗮𝗱 𝘀𝗲𝗻𝗶𝗼𝗿 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘄𝗶𝘁𝗵 𝟳 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗶𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, 📎 Are you seeking a professional Senior Front-end to bring your web application to life? That means I'm here for your project! I am dedicated to transforming your visions into stunning, functional, and user-centric digital experiences. 📎 This profession is my passion, and I enjoy every moment of crafting digital experiences that set you apart and drive success for your business. 📎 Programming languages and frameworks I use: 📍 JavaScript | TypeScript 📍 React.js | Next.js | Gatsby.js | Vue.js | Node.js | Express.js 📍 SCSS | CSS Module | Less | Sass 📍 Tailwind | Bootstrap | Material UI | styled-components 📍 GraphQL | MySQL | PostgreSQL | MongoDB 📍 React Testing Library (jest) 📍 Figma | Adobe XD 📎 The statistics that I am proud of: 📌 17 satisfied customers from the USA 🇺🇸 📌 11 delighted partners from the EU 🇪🇺 📌 3 thrilled associates from Asia 🌏 📌 2 projects from Australia 🇦🇺 👨‍🎨 30+ completed projects/assignments as a freelancer ✏️🎨 💬 I'd love to hear about your project and answer any questions you may have. 📎 I am looking forward to working with you! Buzzwords: Front-End Development Back-End Development Full Stack react js developer full stack react js react js node js react next js react js website nextjs developer next.js tailwind react nextjs HTML5 CSS3 SCSS SASS JavaScript TypeScript ReactJS React.js Redux Next.JS Tailwind CSS Bootstrap Material-UI Ant Design Webpack Babel CSS Modules Styled Components Responsive Design UX/UI Design Figma Sketch Adobe XD InVision Zeplin Website Web Application Single Page Application Progressive Web App Website Redesign Ecommerce Website Animation Charts WebSockets Socket.IO RESTful APIs GraphQL Third-party APIs Stripe PayPal Twilio Google Maps MapBox Design Expertise Testing Jest Mocha Enzyme Cypress Storybook Component Libraries Server-Side Rendering Headless CMS Contentful Sanity.io Strapi Git GitHub GitLab Bitbucket Netlify Vercel Heroku Firebase Cloud Platforms AWS Azure Google Cloud Docker Kubernetes Security Data Privacy Web Performance Browser Compatibility Cross-Browser Testing Mobile First Design Usability Testing Analytics User Testing Prototyping Wireframing Responsive Images SVG Canvas API Design JSON Web Components HTML Templates Custom Elements DOM State Management React Query React Table Formik React Hook Form Recharts NextAuth Auth0 AWS Amplify Node.js Nest.js Express Python PHP Java Ruby Laravel

Hi, I’m Yaroslav – a Senior Full Stack Developer with 6+ years of experience building scalable, high-performance web applications. I specialize in JavaScript (ES5+), TypeScript, Node.js, React.js, Angular, and Next.js, with a strong background in cloud infrastructure (AWS, Docker, Kubernetes) and database management (PostgreSQL, MongoDB, DynamoDB). 💡 What I Bring to the Table: ✔ Full-Stack Expertise: From backend APIs to dynamic front-end interfaces, I build seamless, user-friendly applications. ✔ Scalable & Secure Architecture: I design robust, maintainable solutions using NestJS, Express.js, GraphQL, and REST APIs. ✔ Cloud & DevOps: Skilled in AWS Cognito, S3, Lambda, SQS, EC2, ECS, and deployment pipelines with Docker & Jenkins. ✔ Database Management: Optimized SQL & NoSQL databases (PostgreSQL, MySQL, Redis, Firebase) for high performance. ✔ Agile & Best Practices: Experienced in SCRUM, Kanban, TDD, and BDD to ensure efficient workflows and high-quality code. 🚀 Notable Projects: 🔹 IoT & FoodTech (USA, 27 months): Led full-stack development for an award-winning industry leader, implementing AWS cloud solutions. 🔹 Social Commerce (Germany, 4 months): Built an e-commerce and social networking platform similar to Amazon & AliExpress. 🔹 Marketing & Analytics (USA, 15 months): Developed a WhatsApp Bot, data analytics, and Next.js-based front-end for an online community platform. 🔹 AI-Powered Healthcare (USA, 6 months): Built an ECG-based heart disease prediction system using AI and AWS services. 🔹 Online Book-Sharing (USA, 9 months): Designed and developed a full-stack platform from scratch, including backend, frontend, and DevOps setup. 🎯 Why Hire Me? ✔ I translate business needs into technical solutions that drive results. ✔ I write clean, scalable, and efficient code to ensure long-term project success. ✔ I optimize performance and security while keeping applications user-friendly. ✔ I collaborate effectively with teams, stakeholders, and clients to ensure smooth project execution. 💬 Let’s discuss how I can help build your next high-performance web application!

Hey guys! I am Illia - founder and Lead Front-end Developer at Carely 👋 👨‍💻About Me: 🔷 6+ years of experience in Web&Mobile Development 🔷 Experience working with companies listed in the Fortune 500 🔷 My goal is to provide a solution that perfectly covers all your needs and will make money for your business 🔷 Development for me is a challenge where I am capable of creating complex projects and finding the best solutions ⭐ Why Carely: 🔷 Specialized in services for MVP and Startups; 🔷 Solve business needs, not only coding; 🔷 Over 6+ years of experience in development 🔷 The talented team in web design and development of IT solutions; 🔷 There are no impossible tasks for us; 🔷 Learning new technologies is a must for our developers; My core tech skills: ⚙️𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗹𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: JavaScript, Typescript ⚙️𝗠𝗮𝗿𝗸𝘂𝗽 𝗹𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀: HTML5 ⚙️𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀: ES6, ES7, React.js, Redux.js, ApolloClient ⚙️𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: Next.js ⚙️𝗖𝗦𝗦 𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗼𝗿𝘀: CSS3, SASS ⚙️𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗜𝗻𝘁𝗲𝗿𝗳𝗮𝗰𝗲𝘀: API, GraphQL ⚙️𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗮𝗹 𝘀𝘁𝘆𝗹𝗲𝘀 𝗮𝗻𝗱 𝗽𝗮𝘁𝘁𝗲𝗿𝗻𝘀: MVC, SPA, SSR ⚙️𝗖𝗦𝗦 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: Material UI, Bootstrap, Tailwind CSS ⚙️𝗣𝗮𝗰𝗸𝗮𝗴𝗲 𝗺𝗮𝗻𝗮𝗴𝗲𝗿𝘀: NPM, YARN ⚙️𝗩𝗖𝗦: Git, Gitlab, GitHub ⚙️Testing: Jest, React Testing Library 💌 We are waiting for your suggestions at any time to start long-term cooperation and implement any of your ideas! Buzzwords: JavaScript JS TypeScript TS React.js ReactJS Next NextJS Node.js NodeJS Nest.js NestJS Express.js ExpressJS MERN Material UI MUI Tailwind CSS HTML HTML5 CSS CSS3 SQL No SQL MongoDB Postgre SQL Postgres Firebase Docker AWS Amazon Web Services Google Cloud GIT GitHub GitLub Bitbucket Azure CI/CD DevOps GraphQL Apollo Redux MobX jQuery D3.js D3JS Chart.js ChartJS Canvas Webpack Babel Sass Less Storybook Cypress QA Tests Jest Mocha Chai Selenium Jenkins Kubernetes Terraform Elasticsearch Redis Nginx Linux RESTful APIs GraphQL APIs OAuth Strapi OpenAI ChatGPT Artificial Intelligence AI LLC OpenID Connect JWT JSON Web Tokens WebSockets WebRTC Agile/Scrum methodologies Jira Trello Asana Confluence Slack Netlify Vercel i18n Stripe API Zoom API Metabase Quicksight SaaS PWA progressive web applications SPA single page applications SaaS software as a service E-commerce Marketplace Admin Panel Healthcare Edtech Fintech E-learning Artificial Intelligence AI Software development IoT Internet of Things Business Intelligence CRM Customer Relationship Management ERP Enterprise Resource Planning Cloud Computing Cybersecurity DevOps Automation Digital Transformation Telecommunication Social Networking Big Data Gaming Logistics Real Estate Tech Travel Tech Marketing software MarTech EHR EMR HR solutions Chrome Extension Proof of Concept POC Minimum Viable Product MVP SEO performance optimization debugging code refactoring unit testing integration testing user authentication data encryption API integration third-party services microservices architecture containerization serverless architecture responsive design accessibility a11y user experience UX design user interface UI design prototyping wireframing continuous integration continuous deployment version control code review pair programming Agile methodologies Scrum Kanban project management stakeholder communication technical documentation training and support cloud migration disaster recovery planning network security compliance and regulations automated testing build automation virtualization scalability load balancing multi-tenant architecture real-time data processing event-driven architecture message queuing caching strategies database optimization backup solutions monitoring and logging incident response performance benchmarking and system architecture design ability to troubleshoot and debug complex issues deployment tools runtime environment problem-solving full stack developer full-stack developer fullstack developer back end developer backend developer back-end developer front end developer frontend developer front-end developer web developer web application developer web app developer