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Senior Node.js, React & React Native developer with 5+ years of experience building scalable APIs, web/mobile apps, and real-time systems. Strong background in authentication, payments, Firebase, AWS, and AI integrations for SaaS platforms. Backend-focused engineer with solid frontend expertise—React.js for SPAs and React Native for cross-platform mobile applications—delivering clean, maintainable, and production-ready code. Tech stack highlights: - Node.js (MEAN & MERN stacks) - React.js & React Native - GraphQL & RESTful APIs - MongoDB, MySQL, PostgreSQL - TypeORM, Sequelize, Prisma,... - AWS services I’d be excited to apply my skills to your project and deliver meaningful value to your team.

Hi! I’m Long Nguyen, a Top Rated Full Stack & React Native Developer with 4+ YoE building web and mobile applications. I specialize in React Native mobile apps and modern full-stack development with ReactJS / Next.js and Node.js / NestJS. I’ve built and shipped production applications serving 100,000+ users and 98%+ crash-free rate across iOS and Android. I help startups and businesses turn ideas into high-performance, scalable applications with clean architecture and smooth user experience. ⸻ 🚀 Building scalable web & mobile apps that users actually love ⭐ 100% Job Success | 💰 $19K+ Earnings 💼 What I Can Help You With ✅ Mobile App Development (React Native / Expo) Cross-platform apps with native-like performance for iOS & Android ✅ Modern Web Applications (ReactJS / NextJS) Fast, scalable, and SEO-friendly web apps ✅ Backend & API Development (NodeJS / NestJS) Secure APIs, authentication systems, and scalable backend architecture ✅ Real-Time Features Chat systems, push notifications, live updates ✅ Cloud & Integrations Firebase, AWS, Google APIs, third-party services ✅ Performance Optimization & App Store Deployment CI/CD pipelines, optimized builds, App Store & Play Store releases ⸻ 💡 Why Work With Me? • Clean, maintainable, production-ready code • Strong communication and fast response • Startup mindset — focus on shipping real products • Experience building and scaling production apps ⸻ 👉 If you’re looking for a developer who can design, build, and ship your web or mobile app end-to-end, let’s connect!

I build secure, scalable web and mobile applications that solve complex business problems. With a focus on performance and user experience, I help startups and enterprises launch products that are ready for production and built to grow. How I Help You Succeed: - End-to-End Delivery: From architecture to deployment, I handle the full lifecycle so you can focus on business growth. - Secure Transactions: Experienced in building payment integrations and fintech solutions with strict security standards. - AI Integration: Implementing AI features like real-time recommendations, data processing, and smart automation. - Cross-Platform Efficiency: Developing once for web, iOS, and Android using React Native and Expo to save time and budget. Technical Expertise: - Frontend: React, Next.js, Vue.js, TypeScript, Tailwind CSS, HTML3, CSS5 - Backend: Node.js, Nest.js, Python, FastAPI - Mobile: React Native, Expo - Database & Cloud: PostgreSQL, MySQL, MongoDB, Supabase, AWS, Docker, Terraform Recent Project Highlights: - Fintech Payment Platform: Developed a secure payment gateway for electricity and TV subscriptions in Nigeria, handling high-volume transactions with reliability. - AI Travel Assistant: Built a mobile app using AI to recommend nearby tourist spots, suggest souvenirs, and provide navigation maps, enhancing the traveler experience. - Real-Time SaaS Monitoring: Delivered a monitoring system with sensor dashboards for geotechnical infrastructure. - AI SaaS Platform: Led frontend architecture for an AI-powered test case generation website with live streaming output. Scheduling CRM: Optimized a learning center CRM, reducing schedule conflicts by 30% and improving data retrieval by 35%. I prioritize clear communication, timely delivery, and code quality. Let’s discuss how I can help you achieve your project goals.

I'm a Shopware 6 specialist with 6+ years building Shopware themes, plugins, and complete storefronts. I deliver fast, conversion-optimized, and maintainable Shopware 6 solutions across the full stack — Twig, Symfony, PHP, JavaScript, and Vue — with a strong focus on clean, scalable code and excellent user experience. Whether you need a custom storefront, a new plugin, a version upgrade, or a performance overhaul, I help you get it done right the first time. I committed to creating fast, responsive, and conversion-driven front-end solutions using modern technologies like JavaScript, TypeScript, React.js, Next.js, Vue.js, Nuxt, and more. What I do best - Shopware 6 custom theme development & Storefront customization - Shopware 6 plugin development (PHP / Symfony) - Shopware 6 migrations & version upgrades - Performance & Core Web Vitals optimization for Shopware stores - Headless / API integrations (Store API, REST, GraphQL) - Pixel-perfect Figma-to-Storefront conversion & responsive design, XD to Storefront MY SKILLS - 10+ years of experience in web development - 6+ years of experience with React / Next.js and Vue.js / Nuxt - 5+ years of experience in Shopware 6 themes & plugins - JavaScript & TypeScript expert - AI-assisted development tools: Cursor, Claude Code, Lovable.dev - Progressive Web Apps (PWA) - Responsive web design & cross-browser compatibility - Performance optimization & best practices - GraphQL, REST APIs, API integrations - Pixel-perfect conversion from Figma to responsive UI - SEO: On-page optimization What You Can Expect Working With Me - Committed to Quality – Clean, scalable code and polished results - Clear Communicator – Transparent and proactive updates - Collaborative – Strong teamwork with designers and stakeholders - Reliable – On-time delivery with consistent performance - Solution-Oriented – Focused on solving problems efficiently - Detail-Oriented – Pixel-perfect UI and smooth user experience I pride myself on being honest, fair, and straightforward. If you’re looking for a reliable and experienced front-end specialist, feel free to contact me — let’s build something exceptional together!

I can make anything you want, if you can describe exactly what you want, will get the exact service until full satisfaction. If you are confused or cannot know, actually what you are wanting, I can also help you to decide what is possible in reality and what can be good for your business so that you can decide what service to take what's not. Feel free to hire for: - Web Development + HTML, CSS, Javascript, JQuery + ReactJS, NextJS, VueJS, Angular + PHP (Laravel, Wordpress...) + NodeJS (Express, NestJS...) + Python (Django, Flask...) + Web Scripts - Stripe, MangoPay, Coinbase - Web3, Blockchain - Security enhancements for Web Applications - Firebase, Amazon Web Services - AWS (Lambda, S3, DynamoDB, API Gateway, Cognito...) - Troubleshooting and bug fix - MySQL, PostgreSQL, MongoDB, Redis - API Development - Twilio, FreshChat, Zendesk - Facebook, Twitter, Github, Linkedin Integration - IDE: Visual Studio Code, IntelliJ, Sublime text - OS: Linux, Windows, Mac OS X - Git - Bug/Issue trackers: Jira, Redmine, Trello, ClickUp, Hubstaff, ... Looking forward to your response. If you like my skills. Hope to work with you for the long term.

As a senior software engineer, I don’t just write code. I work as a true partner to your team. You can expect someone who takes ownership, communicates clearly, and is fully invested in helping you reach your goals. If you don’t feel like you’re getting more value than you expected, then I haven’t done my job. I care deeply about writing clean, maintainable, and efficient code that holds up over time. Every product is different, and there’s no universal solution that fits every team. That’s why I take the time to understand your architecture, your constraints, and your users before jumping into implementation. I’ve worked across the full stack, from designing APIs and building web applications to integrating third-party services and improving performance. My focus is always on reliability, usability, and long-term maintainability, not quick fixes that create problems later. Collaboration matters to me. I keep communication open and straightforward, and I make sure you’re always aware of progress, trade-offs, and decisions along the way. If you’re looking for a dependable engineer who cares about both the code and the outcome, I’d love to work together. Tech stack: JavaScript / TypeScript, React, Next.js, Gatsby, Vue, Nuxt, Astro.js, Node.js, Express, NestJS, PostgreSQL, MySQL, MongoDB, GraphQL, REST APIs, Prisma, Vite, Webpack, Docker, Redis, Jest, Playwright, ESLint, Prettier