Hire the Best JavaScript ES6 Developers

Hi, Everyone! I'm ✅ Top-rated professional with over 7 years of commercial experience. ✅ One of the best Three.js developers on Upwork with 100% job success rate! ✅ React frontend developer with a strong knowledge and experience in 3D web applications. Looking to bring your 3D vision to life? Let’s chat and make it happen! What I Can Do for You 1. Develop robust product or data management platforms. 2. Create advanced data annotation tools for 3D assets. 3. Design and implement versatile 3D configurators and editors. 4. Develop custom 3D tools, interactive landing pages with immersive experience. 5. Work with various data formats (e.g., FBX, GLTF, OBJ) and integrate them smoothly into your projects. Implement “View in AR” functionality. 6. Create complex animations and visual effects. 7. Develop mini games. Incorporate physics into your application using engines like cannon-es. 8. Help you to visualize large point cloud datasets on the web 9. Perform various frontend development tasks, including layout and design using REACT, HTML, CSS, and JavaScript. 10. Optimize code for improved performance and scalability. Debug and resolve complex code issues efficiently. Tech stack: Frontend Development: Three.js, React, R3F, Redux, Potree, Chart.js, JavaScript, GLSL, HTML5, CSS3, SASS. Backend Development: Node.js, Express, AWS, puppeteer. Tools and Software: Visual Studio Code, GitHub, GitLab.

"Bridging the gap between powerful backend logic and stunning frontend CMS design." Most developers are limited to either 'drag-and-drop' tools or 'complex coding.' I offer the best of both worlds. Whether you need a highly-customized WordPress/Shopify ecosystem or a robust Full-Stack Web Application built from scratch, I deliver scalable, secure, and high-performance solutions. My Expertise Full Stack Development (Custom Logic) I build custom web applications and dynamic features that standard CMS tools can't handle. From database architecture to API developments, I ensure your tech stack is rock-solid. Tech: React.js, Next.js , Node.js, PHP, JavaScript (ES6+), SQL/NoSQL. Specialties: Custom Dashboards, API Integrations, and Backend Automation. CMS Architecture (Platform Agnostic) I master the entire CMS landscape to choose the right tool for your business growth. No more "one-size-fits-all" solutions. Market Leaders: WordPress (Custom Themes & Bricks/Elementor), Shopify, Webflow. Business & Pro Platforms: Wix, Squarespace, Framer. Enterprise & Headless: Strapi, Contentful, Magento, Joomla. Strategic Technical Solutions Performance Engineering: Optimizing Core Web Vitals and server-side response times for lightning-fast speeds. Seamless Migrations: Safely transferring data and SEO rankings between platforms (e.g., Wix to WordPress, or Shopify to a custom stack). UI/UX to Code: Pixel-perfect conversion of Figma/Adobe XD designs into fully functional websites. Why Clients Choose Me? Working with me means you get a technical partner, not just a task-doer. I focus on clean code, scalable architecture, and transparent communication. My goal is to deliver a product that is powerful enough to handle your traffic, but easy enough for you to manage yourself. Stop compromising on technical limitations. Let’s build a digital asset that truly scales. Click "Message" or "Hire" to start the conversation!

Hi, I am a Senior Full Stack Developer specializing in building high-performance web applications, SaaS platforms, and custom enterprise software. From crafting responsive, pixel-perfect user interfaces to designing complex backend architectures and databases, I handle the entire development lifecycle so you can focus on growing your business. Whether you are a startup validating an MVP or an established business needing to scale your infrastructure, I write clean, maintainable, and production-ready code tailored to your exact needs. 💻 What I Do Best Custom Web & SaaS Development: Building end-to-end web applications, interactive dashboards, and scalable SaaS platforms. Frontend Development: Creating highly responsive, accessible, and dynamic user interfaces with a focus on seamless UX. Backend & API Development: Architecting secure, high-speed RESTful and GraphQL APIs, microservices, and robust server-side logic. Database Design: Structuring secure and optimized relational and NoSQL databases for lightning-fast querying. Third-Party Integrations: Seamlessly connecting payment gateways (Stripe, PayPal), CRMs, AWS services, and modern APIs (including OpenAI/Claude integration if needed). 🛠️ My Technical Stack To ensure your application is built on modern, reliable technologies, I specialize in the following stack: Frontend: React.js, Next.js, TypeScript, JavaScript (ES6+), Tailwind CSS, Redux, HTML5/CSS3 Backend: Node.js, Express.js, Python (Django, FastAPI, Flask) Databases: PostgreSQL, MySQL, MongoDB, Redis Cloud & DevOps: AWS (EC2, S3, RDS), Docker, CI/CD Pipelines, GitHub Actions, Vercel, Heroku Architecture & Version Control: Git, REST APIs, GraphQL, MVC, Microservices. Why Work With Me? ✔ End-to-End Ownership: I manage both the frontend and backend, eliminating the need to hire multiple developers. ✔ Clean & Scalable Code: I follow industry best practices, ensuring your app can grow with your user base without technical debt. ✔ Business-First Approach: I don't just write code; I build solutions designed to increase efficiency, drive sales, and improve customer experience. ✔ Transparent Communication: Daily or weekly updates, prompt responses, and reliable delivery timelines. Recent Projects Include: Custom SaaS platforms and multitenant architectures E-commerce web applications and admin dashboards Inventory and business management systems Complex API integrations and automated workflows If you are looking for a dedicated Full Stack Developer who delivers high-quality, reliable results on time, let’s talk. Send me a message with a brief overview of your project, and let's build something great together!

If you've worked with developers who disappear mid-project or deliver generic templates, you already know the cost of rework and delays. I build custom WordPress websites focused on performance, SEO, and long-term scalability — so you don't deal with that again. I've worked on WordPress projects for companies like KraftHeinz, Grupo Boticário, and Hospital Mater Dei — and more recently with US and European teams at Dexian (Florida), Titan Clarity (Seattle), and Open Circle (Spain). What I focus on: WordPress websites that are fast, SEO-structured, and easy to scale — not just visually done. → Reduced LCP from ~5s to under 2s across multiple WordPress projects — measurable in PageSpeed Insights → Delivered 20+ pages from Figma to production in 5–6 weeks for Open Circle (Spain) → A/B testing and CRO implementation on high-traffic pages at Nuvemshop's Growth team (VWO + HubSpot) → Delivered a complete 8-page WordPress site from scratch in under 10 hours — responsive, production-ready Core tools: WordPress (custom themes, plugins, hooks & actions), Elementor, ACF, Gutenberg, WooCommerce. Also working with: PHP, React, Next.js, TypeScript, SEO, Core Web Vitals, GTM/GA4. How I work: Clear scope, structured delivery, and proactive updates — so you always know what's happening and when. I work seamlessly across US and European time zones, with daily communication in English. If your project needs someone who reads the brief, builds to spec, and delivers without drama — let's talk.

Your design deserves more than "good enough." It deserves pixel-perfect. Most developers build what works. I build what you pictured — exact, fast, and ready to ship. I'm Ayman, a Top Rated Frontend Developer with a 100% Job Success Score and 17+ projects across Angular, React, and Next.js. I turn Figma designs into responsive, high-performance web apps clients are proud to launch. I engineer the decisions. AI helps me move faster. You get clean, thoughtful work — delivered quicker. What I do best: Figma → pixel-perfect code · responsive, mobile-first UIs · Angular & React + TypeScript · Tailwind & SCSS. Clients say: ⭐ "Goes the extra mile — happy to keep working with him." ⭐ "A solid front-end developer. I'd recommend him without hesitation." ⭐ "Exceeded expectations — clean, efficient, well-structured." $20K+ earned. 800+ hours. 100% satisfaction. Let's build something you're proud of.

My clients emphasized my ability to quickly dive into projects and deliver results aligned with requirements and acceptance criteria within the required timeframe. Greetings! I am a Senior front-end developer with a proven track record in React.js, Angular, JavaScript, HTML, and CSS. Finished 39+ projects. 5500+ happy hours, full of challenging tasks, crucial moments, and fun. From an idea to the final launch, I've got you covered. Please feel free to write to me before the project. ⭐⭐⭐⭐⭐ "Vitalii is a person to cooperate with for those who care about their time, money, quality of work, deadlines, and want to avoid hustling. I was impressed by his ability to dive into the context of tasks, finding the right approach for a particular task, asking the right questions, and providing updates on a daily basis. Everything went smooth from the very first message to the final result. We were able to rump up the developing process, improve the code base without the need for big rewrites, and all within just a week with Vitalii's help. His architecture skills and experience have helped us to find the right way for developing the last milestone which was quite tricky and complicated." - Daniel Turczański, Entrepreneur, JQL Search Extensions. Upd: 25.07.25 Why you should choose me over other front-end developers: 🏅 Top Rated Plus Front-End Developer - ONLY 3% on Upwork 🎯 All projects have successfully finished with five-star feedback ✅ Certificates from Microsoft and Udemy ⚡ Immediate answers to any contract/invite in less than three hours ⌚ Available for RUSH projects and calls You will get more than just a front-end developer: - Top-notch experience in Front-end development (React, Angular, JavaScript, Typescript, HTML, CSS) - Proven soft and hard skills - Ability to quickly dive into the project and deliver results within a minimum time frame - 24/7 availability for communication and support - Hustle-free environment for your ideas - An individual deeply committed to your success and adding value to your enterprise --- Keywords: Front End Developer, Front End Development, Front End, React, React.js, TypeScript, JavaScript, JS, Redux, Redux Toolkit, React Hook Form, React Query, React Table, React Router, React Bootstrap, Material UI, MUI, Angular, Angular.js, Angular 8, Angular 9, Angular 10, Angular 11, Angular 12, Angular Material, Ng Bootstrap, NgRx, RxJS, Ng cli, Nx cli, Next.js, SSR, SSG, SWR, App Router, Pages Router, Tailwind CSS, Tailwind, Radix UI, Shadecn UI, Styled Components, CSS Modules, HTML, HTML5, CSS, CSS3, Twitter Bootstrap, Bootstrap, Sass, Less, Scss, Webpack, Vite, Vite.js, Vercel, Cloudflare Pages, API, REST, Graphql, Jira, Asana, Shortcut, GitHub, BitBucket, GitLab, Figma, Zeplin, Adobe XD, Landing Page, SaaS, MVP, PoC, Startup, Product, Enterprise.