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💡 I build full-stack SaaS products, e-commerce platforms, Shopify integrations, and AI-powered web applications. Hi, I’m Lizaveta - a Senior Full-Stack Developer with 7+ years of experience building scalable SaaS platforms, Shopify stores, marketplaces, customer portals, and AI-powered products using React, Next.js, Node.js, TypeScript, and Shopify. I help startups and growing companies build fast, secure, and scalable applications with clean frontend architecture, reliable backend systems, custom integrations, and practical product workflows. 🚀 What I Deliver ✅ Full-Stack Development - React, Next.js, Node.js, TypeScript ✅ Shopify Development - themes, custom storefronts, product pages, app integrations ✅ Shopify APIs - Storefront API, AJAX, product forms, variant logic, pricing workflows ✅ SaaS Development - multi-tenant platforms, dashboards, portals, admin panels ✅ E-commerce Development - configurable products, checkout flows, inventory and order logic ✅ Backend Development - Node.js, Express.js, NestJS, REST APIs ✅ AI Integration - OpenAI API, AI-powered workflows, product automation ✅ Cloud & DevOps - AWS, Docker, CI/CD pipelines ✅ Database Architecture - PostgreSQL, MongoDB, Redis ✅ Mobile Development - React Native and Flutter 🛠 Technical Stack • React.js, Next.js, JavaScript, TypeScript • Node.js, Express.js, NestJS • Shopify, Liquid, Shopify APIs, Storefront API, AJAX • PostgreSQL, MongoDB, Redis • REST API Development & API Integration • Tailwind CSS, Redux, Material UI • AWS, Google Cloud Platform, Microsoft Azure • Docker, CI/CD, DevOps Infrastructure • OpenAI API, AI Automation Systems • React Native, Flutter 💼 Selected Projects Shopify E-commerce Platform Built a Shopify-based auto-parts e-commerce solution with vendor and dropshipping workflows. Worked on product, order, supplier, and storefront operations. Custom Product Configurator Built a Shopify-integrated e-commerce flow for customizable neon products with dynamic pricing based on shapes, sizes, and product options. Arcade AI Worked on an AI-powered marketplace where customers generate and customize physical products by material, size, length, and other product attributes before purchase. Deverus Modernized a large SaaS platform with complex workflows, document processing, integrations, user roles, and operational dashboards. FlexCare Built healthcare platform functionality with secure workflows, user-facing portals, and integrations. 💼 How I Work I focus on building scalable and maintainable full-stack systems with clean architecture, strong performance, and long-term reliability. My process includes product discovery, architecture planning, implementation, testing, deployment, and continuous optimization. I can join an existing product, improve a Shopify store, build a SaaS MVP, create custom integrations, or take a feature from discovery to release. 📩 Let’s build a fast, scalable, and production-ready product for your business.

🧠 AI-Driven Full Stack Developer 💻 𝟖+ 𝐘𝐞𝐚𝐫𝐬 Delivering Enterprise & Startup Solutions 🏆 Top Rated Plus 🚀 Products Serving 𝟏𝐌𝐢𝐥𝐥𝐢𝐨𝐧+ 𝐔𝐬𝐞𝐫𝐬 ✅ Certified Developer in AI SaaS, Web, Mobile & GenAI I’m a Senior Fullstack AI Developer with 7+ year proven track record, specializing in custom application development and product scaling. I have worked with small & medium teams and delivered 50+ projects for clients across multiple countries, achieving 100% client satisfaction. My focus is architecting high-performance SaaS platforms using MERN/Next.js and Python (FastAPI/Django), AI/ML, ensuring secure and maintainable solutions that impact millions of users and drive significant monetization and workflow automation. 💻 My Strengths & Technical Expertise Frontend: React.js (Certified), Next.js (Specialist), TypeScript, JavaScript, Vue.js, Angular, Redux Toolkit, CSS, Material UI, HTML5/CSS3, Tailwind, Chakra UI, React Native Backend: Node.js (Express, NestJS), Python (Django, FastAPI), PHP (Laravel), RESTful APIs, GraphQL, WebSockets, JWT, OAuth, third-party API integrations (Stripe). Databases: PostgreSQL, MongoDB, MySQL, Firebase, Redis, Supabase, Neo4j. Mobile app dev: React Native, (iOS/Android, Expo), TestFlight, App Store, Play Store Cloud Platforms: AWS (EC2, Lambda, S3, DynamoDB, RDS), GCP, Azure, Firebase, Vercel, Netlify. DevOps & Tools: Docker, CI/CD (GitHub Actions), Terraform, Serverless Framework, Kubernetes (Conceptual), NGINX, Linux Server Setup. Architecture: Microservices, Serverless APIs, Event-driven systems, Monorepos. Tools & workflow: Version Control: GitHub, GitLab, Bitbucket Project Management Tools: Jira, Trello, ClickUp Design Collaboration: Figma, Webflow, AdobeXD AI, Machine Learning & LLM Integrations LLMs & Frameworks: OpenAI (GPT-3.5/4/4o), Claude, Gemini, LangChain, LlamaIndex, Langgraph, TensorFlow, PyTorch, LangChain, Hugging Face, OpenCV, AI Model fine-tuning. AI Solutions: Retrieval-Augmented Generation (RAG) pipelines, AI Agents, Chatbots, Voice Assistants, Predictive ML Models, Computer Vision. Data/Tools: Vector Databases (Pinecone, Weaviate, FAISS), Embeddings, Whisper, Custom API-triggered workflows. Integration: Embedded AI in MERN/Python applications. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬: SaaS, EdTech, FinTech, Real Estate, Logistics & Transportation, Retail, LegalTech, HR & Recruitment, Gaming & Sports, Media & Entertainment, Healthcare & HealthTech. 👨‍💻 𝐌𝐲 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐏𝐡𝐢𝐥𝐨𝐬𝐨𝐩𝐡𝐲 I believe in creating: 🔹Clean, Maintainable Code 🔹Intuitive User Interfaces 🔹Ideal API Integrations 🔹Collaborative and Transparent Workflows 🔺𝐋𝐞𝐭’𝐬 𝐖𝐨𝐫𝐤 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫!🔻 If you’re looking for a reliable partner who can bring your ideas to fruition, send me an invitation! Let’s create something amazing together. 𝐆𝐨𝐡𝐚𝐫

Full-Stack & AI Developer, NestJS Developer, Node.js Expert, React.js Developer, Next.js Developer, LLM Integration Specialist, API Integration, Backend Developer, TypeScript, RAG, GraphQL, REST API Developer. Hi, I'm Syed. I'm a Full-Stack and AI Developer with 8+ years building web and mobile apps that ship and scale. My core strength is backend work in NestJS and Node.js, paired with clean React, Next.js, and Angular front ends. I also build AI/LLM features and handle the messy integration work most projects need, including payments (Stripe, MyFatoorah), CRM and ERP systems (HubSpot, NetSuite), messaging (Twilio), and real-time data. 𝐎𝐧 𝐭𝐡𝐞 𝐀𝐈 𝐬𝐢𝐝𝐞, I build things people actually use in production: chatbots, RAG pipelines, document analysis and data extraction, and structured JSON output from LLMs. I've also set up self-hosted, on-premises models with Ollama for clients who need their data to stay private. Over the years, I've worked with startups and established companies across fintech, e-commerce, healthcare, ride and transport services, and management platforms. I've delivered solo and as part of senior engineering teams, and I'm comfortable working to tight deadlines without letting code quality slip. 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐝𝐨 𝐟𝐨𝐫 𝐲𝐨𝐮 🤟 ⚡ AI and LLM features: chatbots, RAG, document analysis, data extraction ⚡ Backend servers and APIs you can rely on (REST and GraphQL) ⚡ Interactive front ends, SPAs, and Progressive Web Apps ⚡ Payment, CRM/ERP, and third-party integrations with webhooks ⚡ Bug fixing, feature upgrades, and performance work ⚡ Cross-platform mobile apps ⚡ Deployment, automated testing, and documentation 𝐖𝐡𝐚𝐭 𝐈 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 👨‍💻 𝐀𝐈/𝐌𝐋: OpenAI and Anthropic APIs, Ollama, RAG, vector databases, prompt engineering, structured extraction 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, NestJS, Express, PHP, Laravel, GraphQL, REST API design, JWT and Passport auth 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React, Next.js, Redux, React Router, Vue, Nuxt, Angular, Hooks, SASS, Material UI, Ant Design, Bootstrap, HTML5, CSS3, responsive design 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB, DynamoDB, PostgreSQL, SQL, Firebase 𝐌𝐨𝐛𝐢𝐥𝐞: React Native, Flutter 𝐂𝐥𝐨𝐮𝐝 𝐚𝐧𝐝 𝐃𝐞𝐯𝐎𝐩𝐬: AWS, Azure, Google Cloud, DigitalOcean, Docker, CI/CD 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: Jest, Mocha, Chai, and TDD 𝐇𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤? I ask good questions early, keep you in the loop, and own the problem instead of just the ticket. You get clean, documented code you can build on, and someone who stays calm when deadlines get tight. 𝐈𝐟 𝐭𝐡𝐚𝐭 𝐬𝐨𝐮𝐧𝐝𝐬 𝐥𝐢𝐤𝐞 𝐭𝐡𝐞 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝, 𝐬𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 𝐨𝐫 𝐢𝐧𝐯𝐢𝐭𝐞 𝐦𝐞 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐚𝐧𝐝 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤. Thanks Syed #SeniorFrontendDeveloper #ReactDeveloper #WebDeveloper #Node.js Developer AI Developer, LLM Integration, RAG Developer, Chatbot Developer, NestJS Developer, Node.js Developer, Backend Developer, React Developer, Next.js Developer, Angular Developer, Full-Stack Developer, API Integration Specialist, Payment Integration Developer, REST API Developer, GraphQL Developer, OpenAI Developer, TypeScript Developer, Web Application Developer, SaaS Developer, MongoDB Developer, React Native Developer, Node.js, NestJS, React, Next.js, TypeScript, AI App Development, LLM, API Integration, REST API, GraphQL, Backend Development, Full-Stack Development, MongoDB, Chatbot Development, Payment Gateway Integration

🚀 $30K+ Earned | 30+ Jobs Delivered | 2,000+ Hours | 8+ Years Experience | ✔ Available Immediately If you are looking for a Senior Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, or SaaS Developer who can build scalable, production-ready, and high-performance applications, I can help you turn your idea into a real product from planning → development → deployment → scaling. I specialize in building modern SaaS platforms, web applications, APIs, dashboards, AI-powered systems, WordPress websites, and mobile applications with clean architecture and long-term scalability. 💡 𝐖𝐡𝐚𝐭 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮 𝐁𝐮𝐢𝐥𝐝 ✔ Full Stack Web Applications (React, Next.js, Node.js, MERN Stack) ✔ SaaS Applications (multi-tenant scalable systems) ✔ RESTful APIs & GraphQL API Development ✔ AI Integrations (OpenAI, ChatGPT, automation workflows) ✔ Admin Dashboards & Business Panels ✔ E-commerce Platforms & Custom Web Solutions ✔ WordPress Websites, Themes & Plugin Development ✔ Mobile Applications (Flutter, React Native, Android, iOS) ✔ Backend Systems (Node.js, Laravel, Django, PHP) ✔ Bug Fixing, Optimization & Code Refactoring 🧠 𝐂𝐨𝐫𝐞 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React.js, Next.js, Vue.js, AngularJS, TypeScript, JavaScript, Redux, TailwindCSS, Bootstrap, Material UI, HTML5, CSS3, jQuery, AJAX 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, Express.js, PHP, Laravel, Django, Flask, REST APIs, GraphQL, Authentication systems, scalable backend architecture 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Flutter, Java, Kotlin, Android, iOS, Ionic, Cordova, API-driven mobile apps 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB, PostgreSQL, MySQL, database design, optimization, performance tuning 𝐂𝐌𝐒 & 𝐄𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞: WordPress, WooCommerce, Shopify customization, plugin & theme development 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: OpenAI API, ChatGPT integration, AI agents, SaaS automation systems 𝐓𝐨𝐨𝐥𝐬: Git, GitHub, Jira, Trello, Asana, Slack, CI/CD, Agile workflows 🚀 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: ✔ 8+ years of real-world software development experience ✔ 2,000+ hours of production-level development work ✔ 30+ successfully completed Upwork projects ✔ Experience with SaaS startups and enterprise-level systems ✔ Clean, scalable, and maintainable architecture ✔ Strong focus on performance, scalability, and UX ✔ Reliable communication and on-time delivery ✔ Long-term technical partnership mindset 📈 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬: • Built and maintained large-scale SaaS and production applications • Long-term Django + React enterprise-level development experience • Delivered multiple 5-star rated client projects • Worked with startups, agencies, and growing businesses • Strong expertise in APIs, dashboards, and scalable systems 🔥 𝐂𝐨𝐫𝐞 𝐅𝐨𝐜𝐮𝐬 𝐀𝐫𝐞𝐚𝐬: ✔ SaaS Product Development (MVP → Scale) ✔ Full Stack Web Development (React / Next.js / Node.js) ✔ Mobile App Development (Flutter / React Native / Java / Kotlin) ✔ API Development & Third-Party Integrations ✔ AI-Powered Applications & Automation Systems ✔ Admin Dashboards & Enterprise Tools ✔ Performance Optimization & Legacy Code Refactoring ✔ Long-Term Maintenance & Support 🤝 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤: ✔ Clear communication and fast response time ✔ Clean and structured codebase ✔ Business-focused technical decisions ✔ Realistic timelines and reliable delivery ✔ No shortcuts, only production-ready solutions ✔ Long-term collaboration mindset 🚀 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐏𝐨𝐰𝐞𝐫𝐟𝐮𝐥: If you need a Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, SaaS Developer, WordPress Expert, AI Developer, or Mobile App Developer, I can help you build fast, scalable, and production-ready software solutions. 👉 Feel free to send me an invite, I respond quickly and can start immediately. 👉 You can also invite me for a quick call so we can discuss your project requirements in detail before starting. Let’s turn your idea into a real product that can scale and grow.

Full Stack Development & Project Manager. We build React, Node, Next.js, Laravel & AI-powered MVPs and SaaS apps end to end. I'm a Project Manager with 10+ years of experience leading a senior Full Stack Development team that designs, builds, and ships production-ready web applications, SaaS platforms, and MVPs from concept to deployment. As a project manager, I own the entire delivery cycle discovery, scoping, architecture, sprint planning, code review, QA, and on-time release so you get one accountable point of contact who keeps the project transparent, on schedule, and on budget instead of you managing a team of freelancers yourself. ▪ Top Rated Plus on Upwork ▪ 100% Job Success Score ▪ All 5.00 ★★★★★ feedback from past clients ▪ 65+ total jobs completed ▪ 31,000+ hours worked on Upwork ▪ 10+ years building scalable, secure, maintainable software What my team and I build: • Full Stack Development: Full stack development for React + Node, end-to-end web apps and dashboards. Example projects: a multi-vendor marketplace frontend rebuilt in Next.js, and a custom internal admin platform with role-based access. Stack: React, Next.js, Node.js, NestJS, TypeScript, JavaScript, Vue.js, MERN. • Backend & API Development: REST API development, scalable backend services, third-party integrations and secure authentication. Example projects: a payment + subscription checkout API integrating Stripe and PayPal, and a NetSuite/CRM REST API integration with webhooks. Stack: Node.js, NestJS, Laravel, PHP, Express, GraphQL, RESTful API. • SaaS & MVP Development: Production-ready SaaS products and MVPs with multi-tenant architecture, subscription billing, and admin dashboards. Example projects: an EdTech SaaS platform with workflow management, and a startup MVP taken from prototype (Lovable/Replit/HTML) to a fully deployed product. • AI Integration & AI Development: AI development services and AI integration baked into web and mobile apps. Example projects: a RAG-powered document-intelligence assistant, and an AI agent/chatbot with voice and automation workflows. Stack: OpenAI, Claude, Gemini, LangChain, RAG, AI agents, MCP, n8n & Make automation, FastAPI, Python. • Databases & Cloud: Reliable data architecture and cloud deployment with CI/CD. Example projects: a high-traffic PostgreSQL data layer with optimized queries, and a containerized AWS deployment with automated pipelines. Stack: PostgreSQL, MySQL, MongoDB, Supabase, Firebase, AWS, Docker, CI/CD. Why clients keep working with us: As a project manager, I translate business goals into clean, scalable technical solutions and communicate clearly at every step. Whether you need a Full Stack Developer for a React + Node build, a PHP Developer or Laravel Developer for a robust backend, a Node.js Developer or Nest.js developer for scalable APIs, REST API development, or AI integration and AI development added to an existing product, my team delivers well-documented, maintainable code with senior-level project management on top. 📩 Send me a message with your project details and you'll get a clear plan, realistic timeline, and honest next steps, usually within a few hours. Best, Hammad

Building a SaaS platform that needs to scale fast without breaking? Hi, I’m Asim, a SaaS & AI Full Stack Developer specializing in scalable web applications using MERN Stack, Next.js, Node.js, and modern AI integrations. As a Full stack Developer, I help startups, SaaS businesses, and growing companies build fast, scalable, and production ready platforms with clean architecture, modern UI, and high performance backend systems. With 7+ years of experience in Full Stack Development, I focus on building applications that are not only visually polished but also engineered for scalability, maintainability, and real business growth. What I Can Help You Build ✔ SaaS Platforms & Web Applications ✔ AI-Powered Features & Integrations ✔ Startup MVPs ✔ MERN Stack Applications ✔ Next.js & React Frontends ✔ Node.js APIs & Backend Systems ✔ Admin Dashboards & Business Portals ✔ Authentication & Payment Integrations ✔ Scalable Database Architecture My Tech Stack React.js Next.js Node.js Express.js MongoDB MySQL /SQL TypeScript Laravel REST APIs OpenAI & AI Integrations Why Clients Work With Me ✔ Clean, scalable, and maintainable code ✔ Strong communication and fast response ✔ Business-focused development approach ✔ Reliable delivery and long-term support ✔ Experience building real-world SaaS products I believe great software is not just about writing code, it’s about building products that solve problems, scale efficiently, and create better user experiences. If you’re looking for a reliable Full Stack Developer for your SaaS platform, startup, or AI-powered web application, let’s connect. Keywords: SaaS Full Stack Developer | MERN Stack Development | Scalable Web Applications | SaaS Platforms | MERN Stack Development | SaaS Full Stack Developer | AI Integrations | Startup Solutions | React.js | MERN Stack Development | Next.js | Node.js | Express.js | SaaS Full Stack Developer | MongoDB | TypeScript | REST API Development | MERN Stack Development | Custom SaaS Applications | MERN Stack Development | SaaS Full Stack Developer | AI-Powered Platforms | MERN Stack Development | Admin Dashboards | SaaS Full Stack Developer | CRM Systems | MERN Stack Development | Business Portals | Analytics Dashboards | SaaS Full Stack Developer | Authentication Systems | MERN Stack Development | Payment Gateway Integrations | Scalable Backend Architecture | MERN Stack Development | Frontend Development | SaaS Full Stack Developer | MERN Stack Development | Responsive UI/UX | Modern Web Design | API Integrations | Cloud-Based Applications | MERN Stack Development | Database Management | SaaS Full Stack Developer | MERN Stack Development | PostgreSQL | MySQL | Firebase | Production-Ready Applications | MERN Stack Development | Startup MVP Development | Custom Web Apps | Enterprise-Grade Systems | SaaS Full Stack Developer | SEO-Friendly Applications | Clean Architecture | Scalable Code | OpenAI Integration | ChatGPT API Integration | AI Automation | AI-Powered Web Applications | MERN Stack Development | Business Automation Tools | Full Stack JavaScript Development | SaaS Product Development | SaaS Full Stack Developer | MERN Stack Development | High-Performance Web Apps | Performance Optimization | Maintainable Code | MERN Stack Development | Modern SaaS Development | Long-Term Product Growth | MERN Stack Development | Full Stack Developer | SaaS Full Stack Developer | Web Application Developer | MERN Stack Development | React Developer | Next.js Developer | SaaS Full Stack Developer | MERN Stack Development | Node.js Developer | SaaS Developer | AI SaaS Development | MERN Stack Development | SaaS Full Stack Developer | MERN Stack Developer | MERN Stack Development | Custom Dashboard Development | Backend Development | MERN Stack Development | SaaS Full Stack Developer | Frontend Engineering | Scalable Systems | SaaS Full Stack Developer | Startup Web Applications | SaaS Dashboard Development | SaaS Full Stack Developer | Secure Web Applications | API Development | Software Development | MERN Stack Development | SaaS Full Stack Developer | Web App Development | MERN Stack Development | Product-Focused Development | Modern JavaScript Applications | SaaS Full Stack Developer | MERN Stack Development |