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I help startups and product teams build or modernize SaaS and mobile products and add AI features to existing software. With 12+ years of experience, I work with React, Node.js, TypeScript, and React Native from architecture through production. Typical engagements: • Full-stack SaaS development and modernization • React Native mobile development, performance, and production debugging • AI feature integration using local or hosted models, with structured outputs, evaluation, error handling, and streaming UX • APIs, authentication, payments, accounting, search, and other third-party integrations • Architecture reviews and difficult cross-layer production issues Relevant experience: • First technical hire for a B2B fintech platform, where I helped take customer-facing and admin apps from zero to production, then expanded into Node.js and GCP backend systems, CI/CD, financial workflows, search, and accounting integrations. • Lead engineer for a React Native language-learning product that raised $1.2M on Kickstarter and launched publicly on iOS and Android. I owned its initial mobile, backend, data, authentication, and mobile 3D architecture and later led a four-developer team. • Primary engineer for a centralized OIDC/BFF identity service used by multiple products, with PKCE, Redis-backed token vaults, session security, and staged rollout. • Founder and lead engineer for an internal alpha of a local-first AI-powered application spanning Rust, Tauri, React, local and hosted models, streaming speech, memory, and evaluation. I stay hands-on while contributing to architecture, implementation, code review, testing, deployment, and clear client communication. I can join a greenfield build, modernize an existing system, or investigate a difficult production problem. If you need a senior engineer who can take ownership across product and technical boundaries, send me the product context, current stack, and the outcome you need.

I build production-grade SaaS platforms, AI systems, AI agents, and full-stack web applications from architecture to deployment. With 7+ years of experience and 57+ delivered projects, I've worked as a Full Stack Developer, AI Engineer, and SaaS Developer for startups and growing businesses that need software built to scale, not just to demo. Why should you hire me as your Full Stack Developer & AI Engineer? 🏆 7+ years of experience building web applications, SaaS platforms, and scalable backend systems with React, Next.js, Node.js, and Python ✅ 25+ AI systems delivered, including RAG pipelines, LLM-powered applications, AI chatbots, AI agents, and AI voice agents using Retell AI, Voiceflow, LlamaIndex, Pinecone, and OpenAI ✅ Full Stack Developer experienced in building SaaS dashboards, CRMs, admin panels, customer portals, and multi-tenant platforms with NestJS, Node.js, Express, React, and Next.js ✅ AI Engineer specializing in RAG and NLP systems, vector search, semantic retrieval, AI automation, and voice/text agents using ElevenLabs, AssemblyAI, OpenAI, and Claude APIs ✅ AI Voice Agent development for lead qualification, customer support, appointment scheduling, inbound/outbound calls, and business workflow automation ✅ Backend Developer experienced in building secure, scalable RESTful APIs, GraphQL APIs, database architectures, authentication systems, third-party integrations, and business logic ✅ End-to-end ownership: system architecture, database design, API integration, AI integration, frontend development, backend development, cloud deployment (AWS/GCP), and post-launch support My stack: ✔️ Frontend React, Next.js, React Native, Vue.js, Angular, Flutter, HTML, HTML5, CSS, CSS3, Bootstrap, Tailwind CSS, jQuery, Responsive Design, Web Design, Web Application Development ✔️ Backend Node.js, Express.js, NestJS, Python, Django, FastAPI, PHP, Laravel, CodeIgniter, RESTful APIs, GraphQL, API Integration, Software Architecture & Design ✔️ Database PostgreSQL, MySQL, MongoDB, SQL, Redis, Supabase, Firebase, Database Architecture ✔️ AI/LLM OpenAI (GPT), ChatGPT, Claude, Gemini, LangChain, LangGraph, Vercel AI SDK, MCP, CrewAI, LlamaIndex, Pinecone, Retell AI, Voiceflow, ElevenLabs, AssemblyAI, Artificial Intelligence, Machine Learning, NLP, Neural Networks, Computer Vision, Data Science, Bot Development, AI Chatbots, AI Agents, AI Automation ✔️ AI-Assisted Dev Cursor, Claude Code, Lovable, Bolt.new, v0.dev, Replit Agent, GitHub Copilot ✔️ Automation & Integrations Make, n8n, Zapier, HubSpot, Salesforce, Airtable, Slack, Twilio, WhatsApp Business API, Webhooks ✔️ Infrastructure AWS, GCP, Azure, Docker, Kubernetes, CI/CD, GitHub Actions, Serverless Architecture ✔️ Security & Compliance OAuth, JWT, IAM, RBAC, HIPAA, HL7, FHIR If you're looking for a Full Stack Developer, AI Engineer, Backend Developer, SaaS Developer, or AI Agent Developer who can take your product from concept to a stable, scalable production system, let's talk about what you're building. React Developer, React Native, React js, React Native Developer, React Node, React Redux, React Js Developer, React Native expert, React angular, React Front end, Full Stack Developer, Full Stack Web Developer, Full Stack Wordpress Developer, Full Stack Web, Full Stack Development, Full Stack Php, Full Stack php Developer, Full Stack WordPress, Full Stack Web Development, Python Full Stack Developer, Python full stack developer Django, Senior full stack developer. Full-Stack Development React JavaScript HTML5 CSS 3 CSS PHP Bootstrap Vue.js HTML WordPress jQuery Python Software Architecture & Design Full-Stack Development Laravel MySQL Software Development Database Architecture API Web Application API Integration Tailwind CSS CodeIgniter SQL Angular RESTful API MongoDB React Native TypeScript Node.js ExpressJS Angular SQL Database Back-End Development AI Chatbot Chatbot Development ManyChat Chatbot Artificial Intelligence Machine Learning Neural Network Computer Vision MySQL Bot Development Natural Language Processing Data Science React PHP Node.js ExpressJS Laravel PostgreSQL SQL MySQL MongoDB Git Angular RESTful API API Integration Database Backend Development Express MongoDB TypeScript ExpressJS React Node.js MySQL MongoDB Vue.js Angular PostgreSQL Redis Firebase Supabase

𝙁𝙪𝙡𝙡 𝙎𝙩𝙖𝙘𝙠 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 𝙛𝙤𝙧 𝙎𝙖𝙖𝙎, 𝙈𝙑𝙋𝙨, 𝙬𝙚𝙗 𝙖𝙥𝙥𝙨, 𝙙𝙖𝙨𝙝𝙗𝙤𝙖𝙧𝙙𝙨, 𝙖𝙣𝙙 𝙘𝙪𝙨𝙩𝙤𝙢 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙥𝙡𝙖𝙩𝙛𝙤𝙧𝙢𝙨. Need someone who can connect your frontend, backend, database, APIs, and third-party tools without making the development process complicated? 👨‍💻 Full Stack Developer using React, Next.js, Node.js, PHP, and MySQL 🚀 SaaS development, MVP development, and custom web applications 🔗 REST API development, payment integrations, and third-party APIs 🛠 New product development, feature additions, debugging, and code improvements 📱 Responsive web applications for desktop, tablet, and mobile 🤝 Direct communication with regular project updates I help founders, startups, agencies, and businesses turn product ideas into working web applications. I can join at the planning stage, continue an existing build, fix an unfinished application, or add new features to a live product. You are not hiring separate people for every part of the project. Frontend development, backend development, database work, API integrations, testing, and deployment can all be managed within one development process. 𝗛𝗲𝗿𝗲’𝘀 𝘄𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗯𝘂𝗶𝗹𝗱 𝟭. 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🔹 Custom web application development from idea to launch 🔹 Frontend, backend, database, and API development 🔹 SaaS platforms, MVPs, portals, and internal business applications 🔹 New feature development for existing web applications 🔹 Testing, deployment, maintenance, and future improvements 𝟮. 𝗥𝗲𝗮𝗰𝘁 𝗮𝗻𝗱 𝗡𝗲𝘅𝘁.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🔹 React.js and Next.js web application development 🔹 SaaS dashboards, admin panels, and customer portals 🔹 Figma to React or Next.js development 🔹 Responsive frontend development 🔹 API-connected pages with search, filters, forms, and live data 🔹 Server-side rendering and frontend performance improvements 𝟯. 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🔹 Node.js and Express.js backend development 🔹 REST API development and API integration 🔹 User authentication and account management 🔹 Admin, customer, vendor, and staff permissions 🔹 Payment processing, subscriptions, and webhooks 🔹 Custom business logic and automated workflows 𝟰. 𝗣𝗛𝗣 𝗮𝗻𝗱 𝗠𝘆𝗦𝗤𝗟 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🔹 Custom PHP web application development 🔹 PHP and MySQL backend development 🔹 Database-driven websites and business platforms 🔹 Existing PHP application updates 🔹 MySQL database planning and query improvements 🔹 PHP bug fixing and feature development 𝟱. 𝗦𝗮𝗮𝗦 𝗮𝗻𝗱 𝗠𝗩𝗣 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🔹 SaaS product development for startups and businesses 🔹 MVP development for testing new product ideas 🔹 Subscription plans and recurring payments 🔹 User onboarding, dashboards, and account settings 🔹 Admin controls for users, payments, content, and reports 🔹 Product improvements based on customer feedback 𝟲. 𝗔𝗣𝗜 𝗮𝗻𝗱 𝗧𝗵𝗶𝗿𝗱-𝗣𝗮𝗿𝘁𝘆 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 🔹 REST API development 🔹 Third-party API integration 🔹 Stripe and PayPal payment integration 🔹 CRM, email, maps, analytics, and automation integrations 🔹 Webhook setup and data synchronization 🔹 Connecting web applications with external platforms 𝟳. 𝗕𝘂𝗴 𝗙𝗶𝘅𝗶𝗻𝗴 𝗮𝗻𝗱 𝗘𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗪𝗲𝗯 𝗔𝗽𝗽𝘀 🔹 React, Next.js, Node.js, PHP, and MySQL bug fixing 🔹 Completing unfinished web applications 🔹 Fixing frontend, backend, API, and database problems 🔹 Adding features to existing products 🔹 Improving page speed and application performance 🔹 Updating older code without unnecessary rebuilding 𝗖𝗼𝗺𝗺𝗼𝗻 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 ✓ SaaS application development ✓ MVP development ✓ Custom web applications ✓ Business dashboards ✓ Admin panels ✓ Customer portals ✓ Membership platforms ✓ Subscription-based applications ✓ Ecommerce web applications ✓ Marketplace platforms ✓ Booking applications ✓ CRM applications ✓ REST API development ✓ Payment gateway integration ✓ React and Next.js development ✓ Node.js backend development ✓ PHP and MySQL development 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 ✓ React.js ✓ Next.js ✓ Node.js ✓ Express.js ✓ PHP ✓ MySQL ✓ PostgreSQL ✓ JavaScript ✓ TypeScript ✓ HTML5 ✓ CSS3 ✓ Tailwind CSS ✓ Bootstrap ✓ REST APIs ✓ Supabase ✓ Git and GitHub ✓ Vercel ✓ AWS ✓ Third-party APIs ✓ Webhooks 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗰𝗮𝗻 𝗲𝘅𝗽𝗲𝗰𝘁 You will receive regular updates and straightforward explanations throughout the project. You will know what has been completed, what is currently being developed, and what comes next. I also look at the product from a user and business perspective. When a requirement can be improved or simplified, I will discuss the option with you before development continues. 𝙄𝙛 𝙮𝙤𝙪 𝙣𝙚𝙚𝙙 𝙖 𝙁𝙪𝙡𝙡 𝙎𝙩𝙖𝙘𝙠 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 𝙛𝙤𝙧 𝙖 𝙎𝙖𝙖𝙎 𝙥𝙡𝙖𝙩𝙛𝙤𝙧𝙢, 𝙈𝙑𝙋, 𝙘𝙪𝙨𝙩𝙤𝙢 𝙬𝙚𝙗 𝙖𝙥𝙥, 𝙤𝙧 𝙖𝙣 𝙚𝙭𝙞𝙨𝙩𝙞𝙣𝙜 𝙥𝙧𝙤𝙙𝙪𝙘𝙩, 𝙨𝙚𝙣𝙙 𝙢𝙚 𝙖 𝙢𝙚𝙨𝙨𝙖𝙜𝙚.

Full Stack Developer with 5+ years of experience building fast, scalable, and maintainable web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js) and Next.js. I help startups, businesses, and entrepreneurs turn ideas into production-ready products from sleek, pixel-perfect frontends to secure, robust backends. Whether you need a brand-new MVP, a website redesign, a custom dashboard, or a full-stack web application, I deliver clean code and real business results. ⚡ What I Can Do for You: ✅ Full Stack Web Development (MERN Stack & Next.js) ✅ React.js & Next.js Frontend Development (SSR, CSR, responsive UI) ✅ Node.js & Express.js Backend Development (REST APIs, JWT Auth) ✅ MongoDB Database Design & Integration ✅ MVP Development for Startups ✅ Admin Dashboards & SaaS Platforms ✅ E-commerce & Booking Platforms ✅ API Integration & Third-Party Services ✅ Responsive, Mobile-First, SEO-Friendly Design ✅ Code Review & Performance Optimization 🛠️ Tech Stack: - Frontend: React.js, Next.js, JavaScript (ES6+), TypeScript, HTML5, CSS3, Tailwind CSS, Bootstrap - Backend: Node.js, Express.js, REST APIs, JWT Authentication - Database: MongoDB, Firebase, PostgreSQL - Tools & Deployment: Git, GitHub, CI/CD, Vercel, Netlify, Figma 🌟 What Clients Say: "Hanzala took our broken React app and transformed it into a high-performing, user-friendly product. Communication was top-notch, and delivery was faster than expected!" - James W., SaaS Founder "We needed a full-stack expert who could own the project. Hanzala delivered on every front from planning to deployment. 10/10 would recommend!" - Aisha H., Startup CTO 🎯 Industries I've Worked In: SaaS, E-commerce, Education, Travel & Booking, Renewable Energy, Logistics (Amazon FBA), and Local Service Businesses. 💬 Why Work With Me: - Clean, testable, and scalable code - Clear communication and on-time delivery - End-to-end project ownership - from planning to deployment - Long-term partnership mindset, not a one-off coder 📩 Ready to build or upgrade your web app? Send me a message - let's bring your vision to life with code that scales. Best Regards, Hanzala

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 / 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 / Stripe / 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 AI-powered applications and automation that bring intelligence to your workflows. Custom AI Chatbots (OpenAI, Claude, Gemini) LLM Integration and Prompt Engineering AI Agent Development Workflow Automation with n8n, Make, or custom solutions Voice AI and Voice Assistant Integration AI-Powered Customer Support and Lead Qualification Document Processing and Summarization AI Content Generation and Categorization Smart Form Fill and Data Extraction Automated Email and Messaging Campaigns Powered by AI 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, 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 Business Software, AI Chatbot Development, AI Agent Development, AI Automation, n8n Workflow Automation, OpenAI Integration, Claude API Integration, LLM Integration, Voice AI Integration, Conversational AI, Workflow Automation Developer, AI-Powered Automation, Intelligent Document Processing, Smart Data Extraction, AI Lead Qualification, Automated Workflows

📣 FREE technical consultation (details below) 🐻 Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). 💪💪💪 With experience as: • Full-Stack Team Lead at Camping World, a publicly traded company • Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp • Founder of Atini Studio, a high-performance software development agency With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution. 🌈🌈🌈 I’m the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products. ⌨️⌨️⌨️ What I help clients with: 📌 MVP development for startups 📌 Full-stack web applications 📌 Cross-platform mobile apps 📌 AI-powered features & integrations 📌 Clean implementation from Figma to production 📌 API integrations (Stripe, OpenAI, Google, Zoom, etc.) 📌 Performance optimization 📌 Technical architecture planning 📌 Product roadmap & scaling strategy We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality. 🧩 Complimentary Technical Consultation Not sure how to move forward with your product? I can help you clarify: • The right tech stack • MVP scope • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you create a clear and practical execution plan. 💻 Tech Stack: • Front End JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS • Back End Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL • API Integrations ChatGPT / OpenAI | Stripe | Google | Zoom | and more... • DevOps Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing Jest | Mocha | TDD • Developer Tools Git | npm | Webpack | Babel | Agile Methodology | Nginx • Design Adobe XD | Figma