Hire the Best React.js Developers

I'm a Design Engineer who builds premium, conversion-focused websites and dashboards in Next.js and React — the kind that load fast, rank on Google, and actually turn visitors into customers. I work the full path from Figma design to clean, production-grade code, so you get a polished interface and a maintainable codebase, not one at the expense of the other. Most developers either design or engineer. I do both, which means fewer handoffs, tighter execution, and a site that looks as good as it performs. Over 4+ years I've shipped 50+ production apps and earned Top Rated status with a 100% Job Success Score. What I work with: ⚡ Next.js 15 & React · Astro · Vue ⚡ TypeScript · Tailwind CSS ⚡ GSAP · Framer Motion · Scroll Animations ⚡ Figma → Code (UI/UX Design) ⚡ Sanity · Payload · MDX (CMS) ⚡ AI / Chatbot Integration ⚡ REST API Integration ⚡ SEO Optimization · Core Web Vitals ⚡ Vercel Deployment Industries I've built for: → SaaS & IT / Tech companies → Fintech & data platforms → E-commerce & jewellery brands → Real estate & property → Solar & energy → EdTech & online learning → Portfolios & personal brands → Company & agency websites → CV / analytics dashboards Core Web Vitals, sub-2s loads, mobile-first, and clean component architecture come standard on every build — not as add-ons. Available for fixed-price and hourly work. I respond within 24 hours. Let's build something fast, premium, and built to convert.

𝐌𝐨𝐬𝐭 𝐰𝐞𝐛 𝐚𝐩𝐩𝐬 𝐟𝐚𝐢𝐥 𝐛𝐞𝐟𝐨𝐫𝐞 𝐭𝐡𝐞𝐲 𝐬𝐜𝐚𝐥𝐞 𝐧𝐨𝐭 𝐛𝐞𝐜𝐚𝐮𝐬𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐢𝐝𝐞𝐚, 𝐛𝐮𝐭 𝐛𝐞𝐜𝐚𝐮𝐬𝐞 𝐨𝐟 𝐬𝐡𝐨𝐫𝐭𝐜𝐮𝐭𝐬 𝐭𝐚𝐤𝐞𝐧 𝐝𝐮𝐫𝐢𝐧𝐠 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭. I build full stack MERN applications and SaaS platforms the right way from day one clean architecture, AI features built in, and code that does not fall apart when your user count grows. No handoffs. No shortcuts. Just a complete product that works exactly the way you imagined it. With 7+ years of experience building full stack web apps and SaaS products, React frontend, Node.js backend, MongoDB database, clean APIs. The kind of developer who ships production-ready work, not prototypes. 𝐖𝐇𝐀𝐓 𝐈'𝐕𝐄 𝐒𝐇𝐈𝐏𝐏𝐄𝐃 ✦ 60+ full-stack web apps and SaaS products : zero to live ✦ Multi-tenant SaaS platform running 5,000+ monthly active users ✦ AI chatbots, smart automations & GPT-powered features integrated into real products ✦ MERN stack : React, Node.js, MongoDB, Express, Next.js, TypeScript & NestJS ✦ 500+ hours on Upwork | Top Rated Plus 𝐖𝐇𝐀𝐓 𝐘𝐎𝐔 𝐆𝐄𝐓 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐌𝐄𝐑𝐍 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Solid, scalable web apps and SaaS products built the right way : clean code, no shortcuts. → React.js & Next.js frontend : fast, responsive UI your users actually enjoy → Node.js & Express backend : secure, performant, built to handle real user load → MongoDB & PostgreSQL : flexible architecture that grows with your product → REST & GraphQL APIs : clean integrations with any third party tool you need → Auth, payments & admin dashboards : a complete product, not just disconnected features 𝐀𝐈 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬 : 𝐁𝐮𝐢𝐥𝐭 𝐈𝐧𝐭𝐨 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 The part most MERN developers send you somewhere else for. I don't. → OpenAI, Claude & Gemini integrated directly into your product's architecture → AI chatbots that handle real user conversations inside your app, tested and ready to ship → Smart automations : workflows that run on your own data, no manual work needed → GPT-powered features : search, summarisation, recommendations & copilots → n8n, Zapier & Make automations that save your team hours every single week 𝐒𝐚𝐚𝐒 & 𝐌𝐕𝐏 𝐁𝐮𝐢𝐥𝐝𝐬 For founders who want a product that works from day one, not after six months of fixes. → Multi-tenant SaaS architecture : built to scale from 10 users to 10,000 → Stripe billing, subscription management & admin dashboard included from the start → MVP to production-ready : fast delivery without cutting corners or creating tech debt → Clean, documented code your team can own, maintain and build on after handoff 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊 Frontend : React.js | Next.js | TypeScript | Tailwind CSS | Redux | Framer Motion Backend : Node.js | Express.js | NestJS | REST | GraphQL | WebSockets Database : MongoDB | PostgreSQL | Redis | Prisma AI & LLMs : OpenAI | Claude | Gemini | LangChain | LlamaIndex | Prompt Engineering Automation : n8n | Zapier | Make | GoHighLevel Cloud : AWS | Docker | Vercel | GCP | GitHub Actions CI/CD APIs & Auth : OAuth | JWT | Stripe | Twilio | Webhooks 𝐇𝐎𝐖 𝐈 𝐖𝐎𝐑𝐊 → Clear technical plan within 24 hours of hearing your idea → Agile delivery : working features every week, not just at the end → Slack, Zoom & Loom updates : you always know where things stand → One developer. No subcontracting. No handoffs to someone junior. → Clean, documented code your team can own long after the project ends 𝐖𝐇𝐎 𝐓𝐇𝐈𝐒 𝐈𝐒 𝐅𝐎𝐑 → Founders building a web app, SaaS or MVP who want AI built in from day one → Teams with an existing product who want AI features added without breaking what works → Businesses tired of hiring three different developers : frontend, backend and AI, I do it all 𝐒𝐞𝐧𝐝 𝐦𝐞 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭. 𝐈'𝐥𝐥 𝐭𝐞𝐥𝐥 𝐲𝐨𝐮 𝐞𝐱𝐚𝐜𝐭𝐥𝐲 𝐡𝐨𝐰 𝐈'𝐝 𝐛𝐮𝐢𝐥𝐝 𝐢𝐭 𝐚𝐧𝐝 𝐰𝐡𝐚𝐭 𝐢𝐭 𝐰𝐢𝐥𝐥 𝐭𝐚𝐤𝐞. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: #Full-Stack Development #React #Node.js #JavaScript #TypeScript #Next.js #ExpressJS #RESTful API Development #GraphQL #MongoDB #PostgreSQL #MERN Stack Development #SaaS Development #Software Development #Web Application Development #API Integration #Front-End Development #Back-End Development #AI Chatbot #Conversational AI #AI Integration #AI Automation #Workflow Automation #Automated Workflow #Zapier #n8n #Make (Integromat) #GoHighLevel (GHL) #Stripe API #OAuth #Twilio API #Voice AI #Chatbot Development #SaaS MVP Development #Multi-Tenant SaaS Architecture #Admin Dashboard Development #Database Design #Payment Gateway Integration #Third-Party API Integration #Web Application Design #Scalable Web Applications

📈 Built & Scaled 50+ React Applications Across Multiple Industries 📈 Helped React Products Reach 100K+ Active Users Worldwide 📈 Contributed to React Platforms Generating $500K+ in Revenue 📈 Developed React Solutions Trusted by 30+ Startups & Businesses 📈 Built React Platforms Handling Thousands of Users Every Month 📈 From MVPs to Enterprise React Applications, Built to Scale from Day One 📈 Delivered Production-Ready React Applications Worth $250K+ in Development Value 📈 Trusted by Startups to Build React Products from Idea to Launch Do you have a slow React app that feels stuck in 2010🕰️, outdated, broken, and not meeting 2026 performance standards? Or a React application that looks fine but doesn’t actually deliver results?🤔 𝗠𝗮𝘆𝗯𝗲 𝘆𝗼𝘂𝗿 𝗥𝗲𝗮𝗰𝘁 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗶𝘀 𝗳𝗮𝗰𝗶𝗻𝗴: 👉 ⚠️ Slow React performance that kills user experience, ⚠️ Broken mobile responsiveness in your React UI, ⚠️ Complex React dashboards built with React that confuse users, ⚠️ State management issues in React apps where data doesn’t flow correctly, ⚠️ Authentication problems in React apps, ⚠️ Bugs & crashes after deployment in React systems, ⚠️ Or previous developers who left your React project incomplete 😬 𝗔𝗻𝗱 𝗵𝗲𝗿𝗲’𝘀 𝘁𝗵𝗲 𝗯𝗶𝗴𝗴𝗲𝗿 𝗽𝗿𝗼𝗯𝗹𝗲𝗺… 🚨 ... You might already have a React web app with traffic, but: ⚠️ Visitors don’t convert into leads on your React Web App, ⚠️ Landing pages in your React product feel weak, ⚠️ Bounce rate is high because React UI is slow, ⚠️ Signup / checkout flows in your React app are confusing, ⚠️ React backend integrations are working… but not optimized, ⚠️ And your React frontend is not driving revenue. 𝗦𝗼 𝗯𝗮𝘀𝗶𝗰𝗮𝗹𝗹𝘆 𝘆𝗼𝘂𝗿 𝗥𝗲𝗮𝗰𝘁 𝘀𝘆𝘀𝘁𝗲𝗺 𝗶𝘀 𝗴𝗲𝘁𝘁𝗶𝗻𝗴 𝗮𝘁𝘁𝗲𝗻𝘁𝗶𝗼𝗻 𝗯𝘂𝘁 𝗻𝗼𝘁 𝗿𝗲𝘀𝘂𝗹𝘁𝘀... 😞 📉𝙃𝙚𝙧𝙚’𝙨 𝙬𝙝𝙖𝙩 𝙄 𝙙𝙤: I specialize in building and fixing high-performance React applications that actually work in real production. 𝗜 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵: 👉 💡 High-speed React apps with optimized performance 💡 Scalable SaaS platforms built in React 💡 Clean, reusable React components for SaaS dashboards 💡 Robust React backend APIs with smooth data flow 💡 React full-stack SaaS development 💡 Fixing broken React applications 💡 API integration (REST, Firebase, React backend systems) 💡 Authentication systems in React apps 💡 UI/UX improvements in React dashboards and products 💡 Performance optimization for React apps 📈 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 𝘆𝗼𝘂 𝗴𝗲𝘁 (𝗥𝗲𝗮𝗰𝘁): 👉 2x–5x faster React performance 👉 Fully responsive React UI across all devices 👉 Scalable React architecture for long-term growth 👉 Higher conversion rates in React funnels 👉 Better UX in React apps → more user engagement 👉 Lower bounce rate due to optimized React performance 👉 Clear user flow in React dashboards 👉 Professional React product that builds trust instantly 👉 Better Core Web Vitals & SEO performance on React apps ......................... ⚛️ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 (𝗥𝗲𝗮𝗰𝘁 / 𝗦𝗮𝗮𝗦):- React, Next.js, Redux, Context API, TypeScript, JavaScript, Tailwind CSS, Material UI, Ant Design, Framer Motion, React Router, Vite 🧠 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 (𝗡𝗼𝗱𝗲.𝗷𝘀 / 𝗦𝗮𝗮𝗦):- Node.js, Express.js, NestJS, REST API, GraphQL, JWT Authentication, OAuth, WebSockets, Microservices, Serverless 🗄️ 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 (𝗦𝗮𝗮𝗦 𝘀𝘆𝘀𝘁𝗲𝗺𝘀):- MongoDB, PostgreSQL, MySQL, Firebase, Redis, Prisma, Mongoose ☁️ 𝗦𝗮𝗮𝗦 / 𝗖𝗹𝗼𝘂𝗱 / 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁:- AWS, Vercel, Netlify, Docker, CI/CD, Nginx, GitHub Actions 🔐 𝗦𝗮𝗮𝗦 𝗙𝗲𝗮𝘁𝘂𝗿𝗲𝘀:- Authentication, Authorization, Role-based Access Control, Multi-tenancy, Subscription system, Payment integration, Stripe, Dashboard analytics, Admin panel 🛠️ 𝗧𝗼𝗼𝗹𝘀:- Git, GitHub, Postman, Figma, VS Code, ESLint, Prettier .......................... 📩 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝗶𝗳 𝘆𝗼𝘂 𝘄𝗮𝗻𝘁 𝘆𝗼𝘂𝗿 𝗥𝗲𝗮𝗰𝘁 / 𝗦𝗮𝗮𝗦 / 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗮𝗽𝗽 𝘁𝗼 𝗮𝗰𝘁𝘂𝗮𝗹𝗹𝘆 𝗽𝗲𝗿𝗳𝗼𝗿𝗺 𝗶𝗻 𝟮𝟬𝟮𝟲 𝘀𝘁𝗮𝗻𝗱𝗮𝗿𝗱𝘀. Best, 𝗛𝗮𝘀𝘀𝗮𝗻 𝗞𝗵𝗮𝗹𝗲𝗲𝗹

Hello, I'm Mustafa Ghouri a Full-Stack Developer and MERN Stack specialist with 6+ years of professional experience building scalable, secure, and high-performance web and mobile applications. I specialize in SaaS platforms, dashboards, REST APIs, and end-to-end custom development designed to support real business growth. I focus on building reliable, maintainable systems not just writing code. 💼 What I Do: I help startups, SMEs, and enterprises turn ideas into production-ready digital products. As a full-stack web developer, I handle everything from frontend UI to backend architecture, database design, and third-party integrations. Whether you need a MERN stack application, a Python-based automation system, or a complex enterprise platform I deliver clean, scalable code from day one. 🌍 Industry Experience: I've successfully delivered full-stack solutions across multiple industries: Marketplaces & E-commerce Travel & Hospitality Custom ERP Systems Healthcare & Mental Health Platforms CRM & Sales Automation Tools Learning Management Systems (LMS) Fitness & Sports Platforms Legal Tech & AI-Assisted Systems Automotive Platforms (Rental, Carpooling, Sales) Finance & FinTech Human Resource Management (HRM) Digital Marketing & Third-Party API Integrations 🔧 Technology Stack: Full-Stack & MERN Development: MongoDB, Express.js, React.js, Node.js (MERN Stack) Next.js, Vue.js, React Native HTML5, CSS3, Tailwind CSS, Bootstrap Progressive Web Apps (PWA) Backend & APIs: PHP (Laravel, Custom PHP) Python (Django, FastAPI) Node.js (Express, NestJS, AdonisJS) Golang RESTful APIs, GraphQL, Firebase, Supabase Databases & Cloud: MySQL, PostgreSQL, MongoDB, DynamoDB AWS, DigitalOcean, Firebase, Elasticsearch API Integrations: Stripe, PayPal, Twilio, DocuSign, Xero Google Maps, Meta APIs (Facebook, Instagram), TikTok DevOps & Infrastructure: Linux (Ubuntu, CentOS), LAMP Stack CI/CD Pipelines Cloud Hosting & Application Scaling 👥 Team Collaboration: I work with a dedicated team, including: Senior Full-Stack Developers English-Fluent Project Managers QA Engineers for full-cycle testing UI/UX Designers & Solution Architects This ensures clear communication, structured delivery, and consistent quality. 🚀 Services: Full-Stack Web Application Development (MERN, Laravel, Django) SaaS & Subscription-Based Platforms Marketplace, CRM & Social Platforms Healthcare, Legal & ERP Systems Mobile App Development (React Native) REST & GraphQL API Development AI Automation & LLM Integrations (ChatGPT, Claude) Database Design & System Architecture Full-Cycle Delivery (Planning → Launch) 🕒 Why Clients Work With Me: Responsive and reliable communication Transparent and structured development process Strong problem-solving and business understanding Scalable full-stack solutions built for long-term use Direct developer access with project management support 💬 Let's Work Together: If you're looking for an experienced full-stack developer or MERN stack expert to build or scale your product, I'd love to discuss your project. Feel free to message me to get started.

👑𝗧𝗼𝗽 𝟭% 𝗘𝘅𝗽𝗲𝗿𝘁-𝗩𝗲𝘁𝘁𝗲𝗱 𝗧𝗮𝗹𝗲𝗻𝘁 | 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗣𝘆𝘁𝗵𝗼𝗻 & 𝗙𝗮𝘀𝘁𝗔𝗣𝗜 | 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 I am an expert Full Stack Developer with over 12 years of experience in building scalable, high-performance web and mobile applications. With a deep understanding of modern frameworks and technologies such as Node.js, Python, and FastAPI, I have consistently delivered innovative solutions to complex challenges, working across the full stack to build end-to-end solutions. As a top 1% Expert-Vetted Talent, I’ve been pre-screened by industry professionals and talent managers to ensure I meet the highest standards of technical expertise and quality. Throughout my career, I’ve had the privilege of working in dynamic, high-impact roles at some of the most renowned tech companies, where I gained extensive experience in leading engineering teams and architecting advanced systems. 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 1- 𝗦𝗲𝗻𝗶𝗼𝗿 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 Spearheaded large-scale, cloud-based software systems that supported Microsoft’s enterprise solutions, focusing on security, performance optimization, and user experience. Led cross-functional teams to implement key features for Microsoft Azure and Office 365. 2- 𝗦𝗲𝗻𝗶𝗼𝗿 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗙𝗮𝗰𝗲𝗯𝗼𝗼𝗸 Contributed to the core engineering teams responsible for Facebook’s backend services, handling millions of active users and optimizing real-time data processing. Played a pivotal role in building scalable APIs, improving system performance, and enhancing user experience. 𝟯- 𝗟𝗲𝗮𝗱 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗛𝗲𝗹𝗹𝗼𝗴𝗼𝘃 𝗔𝗜 Directed a team to build AI-powered government solutions, improving efficiency and accessibility for public services. Collaborated with stakeholders to design innovative features while ensuring system reliability and scalability. 𝗞𝗲𝘆 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 1- Backend Development: Skilled in Node.js, Python, FastAPI, and Express.js for building scalable APIs and microservices. 2- Frontend Development: Experienced with React.js, Vue.js, and HTML/CSS for creating responsive web interfaces. 3- Mobile Development: Expertise in React Native and Flutter for cross-platform mobile app development. 4- Cloud & DevOps: Proficient in AWS, Azure, Google Cloud, Docker, Kubernetes, and CI/CD for scalable deployment. 5- Database Management: Strong in relational and NoSQL databases like PostgreSQL, MySQL, MongoDB, and Redis. 6- Agile & Leadership: Experienced in leading Agile teams, driving project success, and mentoring junior developers. 𝗙𝗹𝗲𝘅𝗶𝗯𝗹𝗲 𝗧𝗶𝗺𝗲𝘇𝗼𝗻𝗲 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: I am comfortable working across a variety of time zones and can adapt to your team’s working hours, ensuring seamless collaboration no matter where you're based. Whether you need overlapping work hours or full-time availability, I am open to flexible arrangements that align with your team’s needs. 𝗛𝗶𝗴𝗵-𝗤𝘂𝗮𝗹𝗶𝘁𝘆, 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀: I have a proven track record of building high-performance systems that scale efficiently, ensuring long-term stability and performance. I am committed to delivering robust solutions that meet business goals while optimizing user experience. 𝗙𝗮𝘀𝘁-𝗣𝗮𝗰𝗲𝗱 & 𝗥𝗲𝘀𝘂𝗹𝘁𝘀-𝗗𝗿𝗶𝘃𝗲𝗻: I thrive in fast-paced environments and understand the importance of meeting deadlines without compromising on quality. I take a results-driven approach to development, always focusing on delivering value quickly and effectively. 𝗣𝗿𝗼𝘃𝗲𝗻 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 𝗮𝗻𝗱 𝗧𝗲𝗮𝗺 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻: Throughout my career, I’ve led multiple cross-functional teams, ensuring strong collaboration and clear communication at all stages of development. Whether working as a lead engineer or as part of a team, I take an active role in mentoring and guiding junior developers to achieve their full potential. 𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲 & 𝗖𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗟𝗲𝗮𝗿𝗻𝗲𝗿: I am passionate about staying ahead of the curve in an ever-evolving tech landscape. My curiosity drives me to constantly explore new tools, technologies, and techniques, so I can apply the best possible solutions to each project I undertake. 𝗟𝗲𝘁’𝘀 𝗕𝘂𝗶𝗹𝗱 𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗚𝗿𝗲𝗮𝘁 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿! With expertise in Full Stack Development, cloud solutions, and Agile, I offer flexible timezone availability and a commitment to delivering high-quality, scalable applications, ready to collaborate and drive results. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Full Stack Developer, Senior Software Engineer, Node.js, Python, FastAPI, React.js, Web Development, Mobile Development, Backend Development, Frontend Development, Full Stack Architecture, API Development, RESTful APIs, Microservices, Cloud Computing, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD, Continuous Integration.

I help founders, funded startups & growing businesses build scalable MVPs, multi-tenant SaaS platforms, AI-enabled SaaS products, web applications, AI agents, voice AI systems, generative AI features, business process automation, and data-intensive backend systems designed for scalability, reliability, security, maintainability, and long-term growth. I'm a Top Rated Senior Full Stack AI Engineer (top 10% of talent on Upwork) with 10+ years of traceable experience architecting, developing, and deploying custom production-grade software platforms, including modern AI-enabled systems. Certified by DeepLearning.AI in Generative AI for Software Development. I serve as a strategic technology partner throughout the SDLC: from product requirements mapping, system architecture design, database design, API strategy, AI integration, and infrastructure planning to front-end & back-end development, cloud deployment, production launch, and ongoing support. I've delivered 100+ custom software solutions for US enterprises, a US government client, founders, and funded startups across North America, Europe, the Middle East, and Africa, with a strong track record of repeat clients. My work usually starts with building an MVP from scratch, scaling a product with traction, rescuing an unstable platform, or integrating AI and new product capabilities without disrupting core operations. From there, I convert business goals, ROI expectations, user workflows, compliance needs, budget, and timeline into a development plan covering scope, milestones, architecture, integrations, testing, and rollout. For founders and funded startups, I help turn early product ideas, business models, and ROI expectations into a focused MVP scope, scalable architecture, launch roadmap, and growth plan without overbuilding too early. I design system, cloud, data, AI, SaaS, security, and integration architectures based on product stage, scalability needs, compliance requirements, operational complexity, and cost. My approach covers practical architecture decisions, secure integrations, tenant isolation, data modeling, AI-ready data foundations, production deployment, observability, and long-term maintainability. Recent deliveries include a turnkey B2B SaaS platform for the construction industry, an AI financial intelligence platform with open banking and accounting integrations, an AI sales CRM with multi-tenant pipelines, a RAG document platform for a US government client, and AI voice agents for healthcare and sales teams. I work full time on Upwork, overlap with US and European business hours, and scope every project in milestones before code is written, so you know cost and timeline up front. Whether you need a skilled development partner to build custom software, integrate AI, or design scalable architecture for long-term growth, feel free to reach out! Tech Stack: Frontend: Next.js, React, TypeScript, Tailwind CSS, React Native Backend: Node.js, Python, FastAPI, REST and GraphQL APIs, WebSockets, webhooks AI and LLM: OpenAI, Claude, Gemini, LangChain, LangGraph, CrewAI, generative AI, machine learning, prompt engineering, function calling, structured outputs, model routing RAG and vector search: RAG pipelines, embeddings, semantic search, pgvector, Pinecone, document AI, OCR AI agents and automation: multi-agent systems, tool-using agents, AI copilots, workflow automation, n8n, Make, document extraction with review queues AI evaluation and reliability: evaluation sets, prompt and version management, hallucination reduction, human-in-the-loop workflows, AI response logging Voice AI: Vapi, Retell, ElevenLabs, Deepgram, OpenAI Realtime, Twilio Databases and data: PostgreSQL, Supabase, Redis, MongoDB, data pipelines, analytics SaaS architecture: multi-tenant SaaS, tenant isolation, authentication and roles (RBAC), Stripe billing, admin dashboards, onboarding flows Cloud and DevOps: AWS, Docker, Vercel, CI/CD, monitoring and logging Security and compliance: OAuth2, JWT, RBAC, encryption, audit logs, HIPAA-aware healthcare builds, KYC/AML flows for fintech Integrations: Stripe, Plaid, open banking APIs, accounting APIs (QuickBooks, Xero, Qoyod), Twilio, CRMs, ERPs Industries, Domains & Use Cases: AI SaaS, AI automation, AI agent development, FinTech SaaS, open banking, healthcare platforms, HIPAA-aware builds, B2B SaaS, multi-tenant SaaS, startup MVPs, construction tech, legal tech, GovTech, sales & CRM automation, ERP integrations, voice AI, e-commerce, recruiting