Hafiz Saad M.

I build web applications, SaaS features, API integrations, and ecommerce solutions that help businesses operate more efficiently. With 10+ years of web development experience, I work across frontend, backend, databases, and third-party integrations. Whether you need a new feature, help fixing an existing application, or a reliable developer for ongoing work, I focus on understanding the problem first and delivering maintainable code. WHAT I CAN HELP YOU BUILD 1. Full-Stack Web Development - React applications, interactive dashboards, and responsive interfaces - Node.js and Express.js backend development - REST API development and third-party API integration - MongoDB data models and database-backed features - Authentication, user roles, permissions, and business workflows 2. SaaS & Business Applications - SaaS dashboards and application features - ERP-style interfaces and role-based access systems - Backend functionality and integrations between business systems - Debugging, refactoring, and improving existing codebases 3. Shopify & BigCommerce Development - Shopify theme customization and storefront improvements - Shopify checkout UI extensions and custom functionality - BigCommerce Stencil customization and B2B ecommerce features - Ecommerce website migration and API-based integrations - Payment gateway integration, subject to your platform and requirements 4. AI & Automation Integrations - OpenAI API integration into web applications - API-connected chatbot and bot development - Connecting applications with external services and workflows - AI-assisted development using modern tools, with code reviewed and tested before delivery HOW I APPROACH YOUR PROJECT 1. Understand your requirements, existing system, and business goals. 2. Agree on scope, deliverables, and acceptance criteria. 3. Develop with an emphasis on clean, maintainable code. 4. Test the agreed functionality and address issues within scope. 5. Communicate progress clearly and provide a practical handover. I can work on a clearly defined fixed-price task or support a longer-term development project. I use AI-assisted tools where they improve efficiency, while keeping technical decisions, implementation, and validation central to the work. LET'S DISCUSS YOUR PROJECT If you need a React or Node.js developer, SaaS application development, API integration, or Shopify and BigCommerce customization, send me a brief description of what you're building or what needs fixing. I'll help you identify a practical approach, clarify the scope, and determine the next steps. Regards, Hafiz Saad Malik E-Commerce Engineer