Zain Khalid M.

As a lead Full Stack Developer, I built '𝗩𝗼𝗻𝘇𝗮' from the ground up. This AI SaaS and business platform generates $70K+ in monthly recurring revenue and serves thousands of paying customers worldwide. I built its multi-tenant microservices architecture with ReactJS, Next.js, Node.js, NestJS, and MongoDB, and integrated Stripe Connect for payments. The platform includes 16+ tools for online courses, e-commerce, sales funnels, email marketing, and CRM, and has been in production for more than five years.

𝗪𝗛𝗔𝗧 𝗜 𝗖𝗔𝗡 𝗕𝗨𝗜𝗟𝗗 𝗙𝗢𝗥 𝗬𝗢𝗨:

• Full Stack Web Development

As a Full Stack Developer, I build responsive web applications, dashboards, admin panels, and marketplaces. I use ReactJS and Next.js for frontend development and Node.js and NestJS for backend services.

Also, as a Full Stack Developer, I manage the work across frontend, backend, APIs, and deployment so the parts fit together.

𝗠𝗬 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 𝗜𝗡𝗖𝗟𝗨𝗗𝗘:

• ReactJS and Next.js application development
• Node.js backend development and API integrations
• REST and GraphQL API development
• Database design with PostgreSQL, MongoDB, and Redis
• Authentication, payment systems, and third-party integrations
• Performance improvements and ongoing application support

𝗔𝗜 𝗦𝗮𝗮𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁

I help businesses add useful AI features to new or existing products. For AI SaaS projects, I can build the application experience, backend services, AI workflows, and cloud deployment. I also help teams plan an AI SaaS MVP, connect models to business data, and prepare the product for real users.

𝗠𝘆 𝗔𝗜 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗶𝗻𝗰𝗹𝘂𝗱𝗲:

• OpenAI and LLM integration
• AWS Bedrock and RAG pipelines for document search and knowledge tools
• Google Vertex AI for AI-powered analysis
• Document processing, intelligent search, and workflow automation
• AI usage monitoring and cost optimization
• API integration

𝗠𝗬 𝗥𝗘𝗖𝗘𝗡𝗧 𝗪𝗢𝗥𝗞:

1: EdgeOCR - AI Document Processing

My client needed to process large volumes of documents more efficiently. I built an AI processing pipeline using AWS Bedrock, connected it to a Node.js backend, and supported the product with a Next.js frontend, secure multi-tenant data handling, and usage-based Stripe billing.