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I'm a Full Stack Developer with extensive experience building web applications, SaaS platforms, eCommerce stores, business automation systems, APIs, and mobile applications for startups, agencies, and growing businesses. Over the years, I have worked with companies across multiple industries, helping them launch new products, improve existing platforms, automate workflows, integrate third-party services, and scale their digital presence. Whether you need a complete application built from scratch, additional functionality added to an existing platform, or a technical partner who can guide your project from concept to launch, I can help. I enjoy working on projects where technology solves real business problems. From custom dashboards and SaaS products to WordPress websites and Shopify stores, I bring both technical expertise and practical problem-solving to every project. What I Can Help You Build: Custom web applications designed for scalability, performance, and long-term growth. React.js Next.js Node.js Express.js MongoDB MySQL PostgreSQL REST API Development Authentication Systems Admin Dashboards Business Portals CRM Systems ERP Systems Custom Software Solutions I help founders and businesses build SaaS products from idea to production. Multi-tenant SaaS Platforms Subscription Systems Stripe Integrations User Management Systems Analytics Dashboards Workflow Automation Customer Portals Custom Business Logic MVP Development Modern businesses rely on software integrations, and I have extensive experience connecting systems together. Third Party API Integrations Custom API Development QuickBooks Integrations Stripe Integrations Payment Gateway Integrations CRM Integrations Webhook Development Data Synchronization Backend Services Cross-platform mobile applications that deliver a seamless user experience. React Native Flutter iOS Applications Android Applications Firebase Push Notifications API Integrations Business Apps Customer-Facing Apps CMS & eCommerce Solutions: WordPress WooCommerce Shopify LearnDash Webflow Wix Custom Theme Development Custom Plugin Development Platform Integrations Performance Optimization Why Clients Enjoy Working With Me: Clear and professional communication Reliable project delivery Strong attention to detail Ability to understand business requirements quickly Clean and maintainable code Problem-solving mindset Long-term partnership approach Fast response times Transparent development process Commitment to quality and performance I understand that hiring a developer is about more than technical skills. Clients want someone they can trust, someone who communicates clearly, takes ownership of the work, and consistently delivers results. That's exactly what I strive to provide on every project. Let's discuss your project and explore the best solution for your business. Keywords Full Stack Developer, Full Stack Development, MERN Stack Developer, MERN Developer, React Developer, React.js Developer, Next.js Developer, Node.js Developer, Express.js Developer, JavaScript Developer, TypeScript Developer, SaaS Developer, SaaS Development, Web Application Development, Custom Software Development, API Development, REST API Development, API Integration, QuickBooks Integration, Stripe Integration, Dashboard Development, CRM Development, ERP Development, Business Automation, WordPress Developer, WordPress Development, WooCommerce Developer, LearnDash Developer, Shopify Developer, Shopify Development, Shopify Customization, Shopify App Development, Mobile App Developer, React Native Developer, Flutter Developer, Firebase Developer, MongoDB Developer, PostgreSQL Developer, MySQL Developer, Custom Web Applications, Startup Development, MVP Development, eCommerce Development, Full Stack Engineer, Software Engineer, Frontend Developer, Backend Developer, Website Development, Web Development, SaaS Applications, Custom Busi

Need a developer who can jump in, understand your product, and deliver scalable, high-quality solutions? I help fast-moving startups and e-commerce brands ship faster, scale smarter, and build products that perform. With 9+ years of full-stack experience — with a focus on Shopify, React, and custom web apps — I bring both technical depth and product sense to every project. What you get: • Custom Shopify themes, sections & apps that increase conversions • Responsive React/Next.js frontends that scale cleanly and perform fast • Seamless backend integrations (Node.js, APIs, databases) • Strong communication, proactive problem-solving, and on-time delivery Selected work: • Shopify: Custom builds for geurwolkje.nl, dekstech.com, nielsenlight.dk • Web apps: Sports betting ML platform, golfer PWA, admin dashboards • Web3: Game UI that boosted DAUs by 40% (React + Solana) • Enterprise: Custom CMS + Big Data tools for the U.S. FDA I often lead projects as both a Senior Developer and Technical Product Manager, translating business needs into clean architecture, efficient builds, and successful launches. Let’s build something that your customers will love.

Senior Full Stack Developer | Web & Mobile Apps | Laravel, React, Next.js, Vue, Nuxt, Node.js, React Native I’m a Senior Full Stack Developer specializing in both Web and Mobile App Development, with strong expertise in Laravel, React.js, Next.js, Vue.js, Nuxt.js, Node.js, and React Native. I build scalable SaaS platforms, high-performance web applications, and cross-platform mobile apps with modern architecture, clean code, and AI-powered features. 💡 TECH STACK & EXPERTISE • Backend: Laravel, PHP, Node.js, Express.js • Frontend (Web): React.js, Next.js, Vue.js, Nuxt.js, JavaScript (ES6+), TypeScript • Mobile Apps: React Native (iOS & Android), API-based mobile apps • Styling: Tailwind CSS, Bootstrap, SASS, SCSS • Databases: MySQL, PostgreSQL, MongoDB • APIs: REST API, GraphQL, Third-party integrations • SaaS Development: Multi-tenant apps, subscriptions, billing systems • Payments: Stripe, PayPal integration • AI Integrations: OpenAI API, ChatGPT, automation systems • Admin Panels: Laravel Nova, Filament • DevOps & Tools: Git, GitHub, Docker, CI/CD, AWS, Vercel, DigitalOcean 🚀 WHAT I CAN BUILD • Full Stack Web Applications (Laravel + React / Vue / Next / Nuxt) • Cross-Platform Mobile Apps (React Native for iOS & Android) • SaaS Platforms (Scalable & multi-tenant architecture) • Custom Dashboards & Admin Panels • API Development & Third-party Integrations • AI-powered Apps & Automation Tools • E-commerce & Subscription-based Platforms 📱 MOBILE APP EXPERTISE • React Native Apps (iOS + Android) • API Integration with Mobile Apps • Push Notifications • Firebase Integration • App Performance Optimization • Clean UI/UX with responsive design ⚡ KEY SKILLS • Scalable Architecture & System Design • Clean, maintainable code • Performance Optimization • Secure Application Development • Responsive Web & Mobile UI • Debugging & Problem Solving 🎯 WHY CHOOSE ME • Strong communication & fast response • Deadline-focused & reliable • Long-term collaboration mindset • Business-focused solutions • High-quality, production-ready apps 🎯 If You Need: ✔ A Laravel SaaS Developer ✔ A Full Stack Laravel Developer (Web & Mobile) ✔ A React / Next.js / Vue / Nuxt Expert ✔ A React Native Mobile App Developer (iOS & Android) ✔ AI Integration into your Web or Mobile App ✔ A Scalable Startup / SaaS Architecture ✔ REST API / GraphQL API Development ✔ A Long-term Technical Partner ✔ Laravel Vue.js Full Stack Developer ✔ PHP Laravel Vue.js Developer ✔ Full Stack Laravel React Developer ✔ Full Stack Laravel Vue Developer ✔ Laravel API & Vue.js Developer ✔ Laravel SaaS Application Developer ✔ Senior Full Stack Laravel Developer ✔ Laravel AWS Cloud Developer ✔ Laravel + React Native App Developer ✔ Node.js & Full Stack JavaScript Developer ✔ MERN / MEVN Stack Developer 🚀 Click “Invite” or “Hire” — and let’s build something powerful. 🔎 Core Expertise Laravel Developer • Senior Laravel Developer • Full Stack Developer • Full Stack Laravel Developer • PHP Laravel Developer • Laravel SaaS Development • Laravel Vue.js Developer • Laravel React Developer • Vue.js Developer • React.js Developer • Next.js Developer • Nuxt.js Developer • Node.js Developer • Express.js Developer • React Native Developer • Mobile App Developer (iOS & Android) SaaS Application Development • Multi-Tenant SaaS Architecture • Startup MVP Development • REST API Development • GraphQL API • API Integration • Third-party API Integration • Payment Gateway Integration • Stripe API • PayPal Integration AWS Deployment • AWS EC2 • AWS S3 • AWS SES • Docker • CI/CD • GitHub • Vercel • DigitalOcean MySQL • PostgreSQL • MongoDB • Database Design • Query Optimization Tailwind CSS • Bootstrap • SASS • SCSS • Vite • Responsive Design • UI/UX Development AI Integration • OpenAI API • ChatGPT Integration • AI Automation • AI SaaS Applications Web Application Development • Mobile App Development • Cross-platform Apps • High-performance Scalable Systems

Upwork Certified in JavaScript backend (Node.js) development. I am an experienced programmer of consumer facing applications and services, with a background building in the arts, publishing, and education industries. I have been designing, developing, and assisting with software projects in a number of categories • Web and game development with HTML5/JavaScript (CreateJS, ZIM) • Mobile development with Flutter/Dart, and Adobe/Harman AIR • Full stack development with Java EE and LAMP I have also helped resurrect or restore control over a number of JavaScript and Animate projects. If you find yourself facing a deadline, or need assistance untangling a codebase, please get in touch and we can talk about how get things aligned again. My projects have included: • A TV/Film production prop iPhone app to simulate calls, texting, and VFX screens (AIR, Flutter) • JavaScript games for TV/Entertainment using CreateJS/EaselJS (GSAP) and ZIM (HTML5 Canvas) • The re-architecture and substantial coding and rework of a medical training program (JS) • The addition of key features to a StoryLine 360 product (PDF printing via JS) • A self-publishing photo album service with mobile page design, image manipulation, painting and sticker functions. Required 3rd party REST integration with other commercial services (AIR) • Archery scoring application for iOS, ranked as high as #16 in the Sports category (AIR) If you have a JavaScript or Animate project that needs creation or work, it is likely that I can provide for you. Drop me a line and we’ll discuss what can be done.

Hi, my name is Kabir, and I'm a developer with over ten years of experience designing graphics and developing websites and web applications. I specialize in JavaScript, especially React and its major supporting libraries, but I have also done projects in Vue, Gatsby, Next.js, Wordress, Node.js, Firebase, and MongoDB. Many developers can build websites and applications, so I try to develop lasting solutions for your project to stay ahead of the competition. I ask the critical questions and take time to research your business, industry, purpose, and goals to help me come up with a "look" and "feel" for a project before I even begin development. Every project of mine has: Dedicated research based on your requirements, content, target audience, and SEO goals A layout of the sitemap and wireframes UI/UX design of your website/application A project manager to help with the budget and schedule of your project I have a passion for building responsive and engaging solutions that provide a seamless user experience with a satisfying and clean design for your content. Every business is unique, and my answers try to reflect that. I also freelance as a designer. I create most of my UI/UX logos, handle client branding, and create illustrations and artwork in my spare time. I have been doodling with Adobe Creative Suite and Creative Cloud for almost ten years and have considerable experience designing. Please feel free to reach out and ask any questions. I look forward to working with you.

Full-Stack Developer | AI Integrations | Data Science I build production AI applications, data pipelines, and full-stack SaaS platforms for startups and enterprise teams. 10+ years shipping code, the last two focused on AI-accelerated development with Claude Code, Codex, Cursor, and whatever ships next — multi-agent systems and LLM integrations that actually run in production. What I do AI engineering: Claude, OpenAI, and Gemini integrations; multi-agent orchestration with LangGraph; RAG pipelines; evaluation harnesses; production-grade LLM features that hold up beyond the demo. Data science & ML: Data pipelines, ETL, feature engineering, model integration, and analytics tooling. Pandas, NumPy, scikit-learn, and the glue code that gets models into production. Full-stack development: React / Next.js, Node.js, Python / Django, FastAPI, PostgreSQL, React Native. Clean APIs, sensible architecture, code that other engineers can maintain. AI-accelerated workflows: Daily use of Claude Code, Codex, and Cursor with custom configs, MCP server integrations, and agentic dev loops that meaningfully cut delivery time on real client work. Comfortable picking up new AI tooling as it emerges. Cloud & infrastructure: AWS, GCP, Azure, Docker, CI/CD. Built for the load you actually have, not the load a slide deck says you'll have. Industries: SaaS, healthcare (HL7/FHIR/DICOM/HIPAA), fintech, ecommerce (including Amazon SP-API), and AI-native startups. Technology Stack: React, Next.js, Node.js, TypeScript, Python, Django, FastAPI, PostgreSQL, Redis, Docker, AWS, GCP, LangGraph, Pandas, scikit-learn, Claude Code, Codex, Cursor, OpenAI / Anthropic / Gemini APIs, React Native. If you're building something AI-heavy, data-driven, or need a senior engineer who can own delivery end-to-end, send over the details and I'll tell you honestly whether I'm the right person for it.