Full Stack JavaScript - React, Node, NextJs, Vue, NuxtJS ✋ Hi, I'm a Full Stack developer with great experience in building top-notch websites, web applications, and mobile apps. I have 7+ years of development experience building full-stack products from scratch, developing and integrating APIs, working with a variety of databases and cloud platforms 💻 Skills and Experiences: ✅ JavaScript(ES5/ES6/ES7, Babel) ✅ React.js, Next.js, Gatsby, Redux, GraphQL, Apollo, styled-components ✅ Vue.js, Vuetify, Vuex, Nuxt.js, Element plus, Vue Router, Bootstrap, Tailwind CSS, Chart.js ✅ HTML5, CSS3,SASS/SCSS ✅ Node.js, Express, MongoDB, Firebase,Hasura, Graphql ✅ REST API ✅ Webpack, Grunt ✅ UI Libraries: Ant Design, Bootstrap, Element, Material-UI ✅ Headless CMS: Netlify CMS, DatoCMS, Ghost, Strapi, Contentful ✅ Git, GitHub, GitLab, Bitbucket, Jira, Trello, Slack ✅ Amazon Web Services/ Google Cloud Platform/ Microsoft Azure/ DigitalOcean 💻 Services ✅ An entire set of software development services ✅ Deployment to AWS and Heroku ✅ Quality Assurance: Unit testing, integration testing ✅ Maintenance: optimization and bug fixing ✅ Timely communication and transparency ✅ Clear management 💬 Let’s keep in touch! Feel free to let me know if you need any help.

Hello, I'm full-stack developer and blockchain expert who has been working on web, mobile app, blockchain project development for 10 years. I have gained rich experience and strong skills in JS and PHP frameworks as well as Blockchain. I am very passionate in development and focus on the full-stack web/mobile app and NFT and Defi project.

My career as a web developer started 10+ years ago in which time it has proven that I am even better at coding and slicing. React and Material UI are the areas in which I excel so I became a Front-End developer but I am also familiar with back-end development languages like ExpressJS and PHP(Laravel). Also, I am ready to learn new ones and expand my current knowledge of the fore mentioned as needed to the point where it makes me do my job as a Front-End developer, faster, better and more efficiently. That is the way I dived into web programming in the first place and started to like it through the learning process. Specialties: - Front-End development (React, AngularJS, Vue.js, Material UI, Sass, Styled Component) - Back-End development (Laravel, ExpressJs, MySql, MongoDB), although I'm stronger on the front-end side - Web Standards - Usability & Accessibility

HELLO, THANK YOU FOR VISITING MY PROFILE!!! I am a Shopify-focused Frontend Developer with great Backend knowledge who will implement new UI features and functionality as well as maintain, support and upgrade existing functionality. I've been working closely with the Business Stakeholders and Graphic Designers to define how the application looks as well as how it works. EXPERIENCE IN SHOPIFY DEVELOPMENT - 7+ years of experience as a frontend developer in an ecommerce environment - Experience with Shopify theme development using liquid template language and Slate as toolkit for local theme development - Experience with Shopify 2.0 Dev Environment - Proficient understanding of markup, HTML5, CSS3 and SASS/LESS(server-side CSS pre-processing platforms) - Proficient understanding of client-side scripting, JavaScript and JS frameworks like React, Vue - Good understanding of asynchronous request handling, partial page updates and AJAX - Familiar with code version control tools like github, gitlab and bitbucket - Proficient understanding of Ruby on Rails framework - Good understanding of SEO principles - Proficient understanding of cross-browser compatibility - Good understanding of how to optimize a website - Experience of Google Analytics event tracking, Google Tag Manager - Npm and command line - Experience with Backend development and API integrations - Strong communication, interpersonal, analytical and problem solving skills I don't want to just build you a website, I want to build you a brand experience that clients will recognize each time they interact with your brand. SO LET'S SHAKE THINGS UP TOGETHER!!!

I help businesses build and improve websites, AI tools, and automations quickly. I have experience working on projects like Carel Lurvink B.v (B2B e-commerce), Liena AI (SaaS), Techpeeker (SaaS), and Rijschool Profdrive (driving school). What I can help with: • Websites & web apps • AI integrations & automations • API integrations • SEO optimization • Landing pages & bug fixes • Fast small projects (usually within 1 week) I focus on clean code, fast delivery, and clear communication. Let’s build something great

🔥 Building high-performance mobile applications is more than just shipping screens — it’s about creating stable, scalable ecosystems that users actually enjoy using daily. I specialize in React Native + Expo development for fast-moving startups that need production-ready mobile apps, rapid iteration cycles, and clean architecture capable of scaling under real user growth. Over the last several years, I’ve worked across social platforms, creator economy products, AI-assisted applications, SaaS systems, and real-time mobile experiences where speed, reliability, and UX consistency directly impacted user retention and growth metrics. I’m particularly experienced stepping into partially completed or rapidly evolving codebases and turning them into maintainable, stable, and scalable systems without slowing down release velocity. ━━━━━━━━━━━━━━━━━━ 🚀 WHAT I HELP STARTUPS ACHIEVE ━━━━━━━━━━━━━━━━━━ ◆ Stabilize React Native apps before launch or investor demos ◆ Eliminate regressions and recurring production bugs ◆ Improve onboarding flows and user retention ◆ Refactor messy or AI-generated codebases into maintainable architecture ◆ Optimize mobile performance across iOS + Android ◆ Improve feed systems, notifications, and real-time interactions ◆ Reduce crashes, loading delays, and inconsistent UI behavior ◆ Build scalable backend integrations using Supabase/Firebase APIs ◆ Accelerate development cycles with AI tooling and automation workflows I work especially well in startup environments where priorities shift quickly, timelines are aggressive, and communication speed matters just as much as technical execution. ━━━━━━━━━━━━━━━━━━ 📱 MOBILE APP SPECIALIZATION ━━━━━━━━━━━━━━━━━━ ◉ React Native (CLI + Expo) ◉ TypeScript-first architecture ◉ Cross-platform iOS & Android apps ◉ Social media & creator economy platforms ◉ Reels / Shorts / TikTok-style video feeds ◉ Real-time chat & notification systems ◉ Authentication & onboarding systems ◉ Subscription & monetization flows ◉ AI-integrated mobile applications ◉ Scalable API integrations ◉ Push notifications & in-app messaging ◉ App optimization & performance profiling ◉ Regression debugging & QA stabilization ◉ Offline-first architecture patterns ◉ Mobile UX refinement & interaction systems ━━━━━━━━━━━━━━━━━━ 🧠 TECH STACK & TOOLING ━━━━━━━━━━━━━━━━━━ ⚡ Frontend & Mobile React Native, Expo, TypeScript, JavaScript ES6+, Redux, Zustand, Recoil, React Query, NativeWind, TailwindCSS, Expo Router, React Navigation, Gesture Handler, Reanimated, WebSockets ⚡ Backend & APIs Supabase, Firebase, PostgreSQL, Node.js, Express.js, REST APIs, GraphQL, Edge Functions, Authentication Systems, Real-Time Sync Engines ⚡ Performance & Stability Crash debugging, memory leak detection, lazy loading optimization, rendering optimization, infinite scroll optimization, media delivery optimization, bundle reduction, startup performance tuning ⚡ AI-Assisted Development Cursor AI, Claude, ChatGPT, GitHub Copilot, Windsurf, AI code auditing, AI-assisted refactoring workflows, automated debugging assistance, prompt engineering for development pipelines ⚡ DevOps & Deployment EAS Build, Expo Application Services, GitHub Actions, CI/CD pipelines, TestFlight deployment, Play Store deployment, Sentry, monitoring systems, release management ⚡ Collaboration & Startup Workflow Asana, Linear, Jira, Notion, Slack, Git workflows, agile sprint coordination, async development environments, timezone-based collaboration systems ━━━━━━━━━━━━━━━━━━ 💡 EXPERIENCE WITH SOCIAL & FEED-BASED APPS ━━━━━━━━━━━━━━━━━━ One of my strongest areas is mobile social ecosystems and feed-heavy applications where UX smoothness and backend consistency are critical. I’ve worked on systems involving: ◆ Infinite vertical feed architectures ◆ TikTok/Reels-style media experiences ◆ Content recommendation & ranking logic ◆ User interaction systems ◆ Social graph relationships ◆ Moderation workflows ◆ Creator onboarding systems ◆ Push notification engagement loops ◆ User matching systems ◆ Community/group interactions ◆ Real-time updates and event-driven UI states I understand the complexity behind maintaining consistency across feeds, social relationships, cached data, optimistic UI updates, and real-time synchronization — especially under startup release pressure. ━━━━━━━━━━━━━━━━━━ 📬 LET’S BUILD SOMETHING STABLE & SCALABLE ━━━━━━━━━━━━━━━━━━ If you're building a mobile application that needs senior-level React Native expertise, production stabilization, rapid debugging, scalable architecture, or launch-critical polish — I can jump in quickly and contribute immediately. Available for: ◆ Intensive stabilization sprints ◆ Long-term product development ◆ Contract-to-hire opportunities ◆ Startup launch preparation ◆ Mobile architecture consulting ◆ React Native performance optimization ◆ AI-assisted development environments Let’s build a mobile experience users actually want to come back to.

I am detail-oriented but even more client-oriented, and that’s why I am always trying to find the best possible solution for any issue. - react.js, node.js , angular.js/2/4/5/6/7/8/9/10/11/12, vue.js, react native, ionic framework, MongoDB, MySQL, PostgreSQL, SQLite, Laravel, CakePHP, and YII/YII2 are my top skills - SAAS, CRM, Salesforce, ERP, Ticket master, Financial Analytics, Booking, eCommerce, web portal, database administration, and Cryptocurrency(BlockChain) are my main categories Here are the values which I can bring to your project: 1) Collaborate closely with the design team to realize exceptional end-user experiences. 2) Build and maintain reusable JavaScript/TypeScript components while adhering to coding standards and best practices. 3) Collaborate with design/backend teams to deliver optimized UI/UX. 4) Developing new user-facing features using React.js/Angular/Vue. 5) Building reusable components and front-end libraries for future use. 6) Translating designs and wireframes into high-quality code. 7) Optimizing components for maximum performance across a vast array of web-capable devices and browsers. My technical skills: * Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model; * Thorough understanding and expertise at React.js and its core principles; * Experience with popular React.js workflows (such as Flux or Redux); * Familiarity with EcmaScript; * Prior experience with data structure libraries (e.g., Immutable.js); * Familiarity with RESTful APIs; * Strong with HTML / CSS; * GIT experience.

My primary skill is React & Typescript but not limited to this. Also I have enough experience with Vue.js and also I have rich experience with Laravel + React(Next) and Laravel + Vue(Nuxt). In the past, I worked on many projects with talent team with great team culture. So, I am looking for my new position with same team culture.

Hi, I'm Sven — an eCommerce Engineer based in Amsterdam, Netherlands, specialising in building high-performance online stores, custom platform extensions, and headless commerce architectures that convert browsers into buyers and scale with your business. 🛒 I've spent years architecting and delivering eCommerce solutions across Magento 2, Shopify Plus, WooCommerce, and custom Laravel/Node.js backends — for fashion brands, luxury retailers, B2B wholesalers, food & grocery platforms, and health & beauty stores across Europe and the US. Whether you need a complex Magento 2 multi-store setup, a Shopify Plus custom checkout, a headless React storefront, or a full ERP integration — I build it right, and I build it to last. --- / 𝑴𝒚 𝑪𝒐𝒓𝒆 𝒆𝑪𝒐𝒎𝒎𝒆𝒓𝒄𝒆 & 𝑻𝒆𝒄𝒉 𝑺𝒕𝒂𝒄𝒌 / --- 𝒆𝑪𝒐𝒎𝒎𝒆𝒓𝒄𝒆 𝑷𝒍𝒂𝒕𝒇𝒐𝒓𝒎𝒔: - Magento 2: Custom module development, theme building, multi-store configuration, B2B features, performance tuning (Varnish, Redis, Elasticsearch), and complex ERP/PIM integrations. My deepest platform expertise. - Shopify & Shopify Plus: Custom theme development with Liquid, Shopify App development (public & private), checkout extensibility, multi-currency/multi-language, and Shopify Plus automation via Flow and Scripts. - WooCommerce & PrestaShop: Custom plugin development, theme customisation, payment gateway integration, and performance optimisation for high-traffic stores. 𝑩𝒂𝒄𝒌𝒆𝒏𝒅 & 𝑪𝒖𝒔𝒕𝒐𝒎 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕: - Laravel & Symfony: Custom eCommerce backends, REST APIs, order management systems, and middleware layers connecting storefronts to ERP, WMS, and PIM systems. - Node.js & NestJS: High-throughput API services for headless commerce architectures, real-time inventory sync, and Shopify webhook processing pipelines. 𝑭𝒓𝒐𝒏𝒕𝒆𝒏𝒅 & 𝑯𝒆𝒂𝒅𝒍𝒆𝒔𝒔 𝑪𝒐𝒎𝒎𝒆𝒓𝒄𝒆: - React & Next.js storefronts connected to Magento 2, Shopify, or custom backends via GraphQL and REST — blazing-fast, SEO-optimised, and conversion-focused. - PWA (Progressive Web App) storefronts for mobile-first shopping experiences with offline capability and app-like performance. 𝑷𝒂𝒚𝒎𝒆𝒏𝒕𝒔 & 𝑰𝒏𝒕𝒆𝒈𝒓𝒂𝒕𝒊𝒐𝒏𝒔: - European payment gateways: Mollie, iDEAL, Klarna, Stripe, and PayPal — localised checkout flows that maximise conversion across NL, DE, BE, UK, and US markets. - ERP/PIM/WMS integrations: SAP, Exact, Akeneo, and custom middleware for product data, inventory, and order sync between storefront and back-office systems. 𝑷𝒆𝒓𝒇𝒐𝒓𝒎𝒂𝒏𝒄𝒆 & 𝑺𝒄𝒂𝒍𝒂𝒃𝒊𝒍𝒊𝒕𝒚: - Varnish full-page cache, Redis session/cache management, Elasticsearch product search, and AWS auto-scaling — eCommerce infrastructure that stays fast on Black Friday. ---/ 𝑾𝒉𝒚 𝑾𝒐𝒓𝒌 𝑾𝒊𝒕𝒉 𝑴𝒆? /--- eCommerce is not just my job — it's my specialisation. I understand that every second of load time costs conversions, every broken checkout step loses revenue, and every ERP sync failure creates customer service headaches. I build stores that are fast, reliable, and connected — and I've done it across fashion, luxury, food, health, and B2B verticals at real commercial scale. I have strong English, experienced working with retailers and agencies across the Netherlands, Germany, Belgium, and the US. Based in Amsterdam (UTC+2) with full availability for European and US East Coast clients. 𝑳𝒆𝒕'𝒔 𝒄𝒐𝒏𝒏𝒆𝒄𝒕 and build an online store that works as hard as your products deserve. 🛒🔥

I build production-ready Flutter apps and AI-enabled products for founders, startups and teams that need someone who can take ownership from idea to shipped software. My strongest lane is Flutter across iOS, Android, web and desktop, usually with Firebase or Supabase behind it. I also build React/TypeScript web apps, Firebase Cloud Functions, dashboards, internal tools and AI workflows when that is the fastest path to a working product. What I can help with: • Flutter mobile apps for iOS and Android • Flutter web/desktop apps and portals • MVP architecture, rebuilds and rescue projects • Firebase, Firestore, Cloud Functions and Supabase backends • API integrations, app maintenance, refactors and release fixes • AI features, agent workflows and automation around real business processes • UI/UX, product flow, technical planning and project management Relevant work: • Float Note — built an ADHD-focused task-management SaaS across mobile, web and desktop with Supabase. • MedApp — worked as Flutter lead developer, mentoring a team of up to about 10 people and improving delivery, reviews and technical process. • Friday Energy — redesigned and refactored the Flutter mobile app, including UI upgrades, caching, API migration, force update logic, feedback flows and language switching. • Go Potty — built a Flutter web portal with dashboards and insights, and improved the existing Flutter mobile app. • Roomy — built a Flutter MVP across web, Android and iOS, plus the Astro website, waiting lists and launch funnels. • SuperMarty — built a food/nutrition platform with React, Firebase, Flutter, AI workflows, scraping/search pipelines, meal planning and price comparison. • MIA — built a local-first invoice automation app with React, TypeScript, DuckDB, PDF generation and AI-assisted import mapping. Clients usually benefit most from me when the work is not just “write code”, but also needs product thinking, clear communication, technical decisions and steady execution. If the product is still messy, I can help turn it into a buildable plan and then ship it.