Saif U.

As software grows, adding another feature shouldn't mean adding more complexity, fragile integrations, or code that becomes harder to maintain. I approach development from the system level first: 𝗵𝗼𝘄 𝘁𝗵𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝘀𝗵𝗼𝘂𝗹𝗱 𝗯𝗲 𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝗱, 𝗵𝗼𝘄 𝗶𝘁𝘀 𝗰𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗲, 𝗮𝗻𝗱 𝗵𝗼𝘄 𝘁𝗵𝗲 𝗱𝗲𝘀𝗶𝗴𝗻 𝘄𝗶𝗹𝗹 𝗵𝗼𝗹𝗱 𝘂𝗽 𝗮𝘀 𝗿𝗲𝗾𝘂𝗶𝗿𝗲𝗺𝗲𝗻𝘁𝘀 𝗲𝘃𝗼𝗹𝘃𝗲. I then turn those decisions into working software. 🟣𝗦𝗬𝗦𝗧𝗘𝗠 𝗗𝗘𝗦𝗜𝗚𝗡 & 𝗜𝗠𝗣𝗟𝗘𝗠𝗘𝗡𝗧𝗔𝗧𝗜𝗢𝗡 My work covers High-Level Design (HLD), Low-Level Design (LLD), API contracts, database design, design patterns, and modular architecture. I consider component responsibilities, data flow, security, scalability, and failure handling choosing an architecture that fits the actual requirements rather than overengineering from day one. I also use AI during requirements analysis, design exploration, and implementation to compare approaches and accelerate development. But generated code and architectural suggestions must be reviewed, tested, and validated against business rules and real-world constraints. 𝗔𝗜 𝘀𝗵𝗼𝘂𝗹𝗱 𝗶𝗺𝗽𝗿𝗼𝘃𝗲 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗱𝗲𝗰𝗶𝘀𝗶𝗼𝗻𝘀, 𝗻𝗼𝘁 𝗿𝗲𝗽𝗹𝗮𝗰𝗲 𝘁𝗵𝗲𝗺. 🟣 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘 𝗜𝗡 𝗥𝗘𝗔𝗟 𝗔𝗣𝗣𝗟𝗜𝗖𝗔𝗧𝗜𝗢𝗡𝗦 At Serdar Properties in Dubai, I developed Node.js automation using Redis and BullMQ, connected WhatsApp Business API follow-ups to CRM status changes, and built a Claude-powered MCP assistant for Bitrix24. Deployed on AWS Lambda, the assistant used defined backend tools for lead creation, task assignment, and interaction logging. At Al Yalayis Government Transaction Center, I worked on ERP modules using React and Node.js, with Express APIs backed by MongoDB and PostgreSQL. My work also involved Redis caching, authentication, WebSockets, cloud infrastructure, containers, and automated testing. 🟣 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦 𝗜 𝗪𝗢𝗥𝗞 𝗪𝗜𝗧𝗛 ☑️ 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Node.js, Express.js, PHP, Laravel, TypeScript, REST APIs, GraphQL, WebSockets ☑️ 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React.js, Next.js, Vue.js, JavaScript, Redux Toolkit ☑️ 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲: HLD, LLD, System Design, Software Architecture, Design Patterns, Modular Architecture, Microservices, Event-Driven Architecture ☑️ 𝗗𝗮𝘁𝗮 & 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴: PostgreSQL, MySQL, MongoDB, Redis, BullMQ, RabbitMQ, Qdrant ☑️ 𝗔𝗜 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Claude AI, RAG, MCP, AI Tool Calling, Function Calling, Structured Outputs, Streaming Responses, AI Chatbots, Voice Agents, WhatsApp Business API, CRM Integrations, Third-Party APIs, Webhooks, n8n ☑️ 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: AWS, Docker, Kubernetes, Nginx, Linux/Ubuntu, GitHub Actions, Jenkins, CI/CD ☑️ 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 & 𝗖𝗼𝗱𝗲 𝗤𝘂𝗮𝗹𝗶𝘁𝘆: Jest, Mocha, Chai, Supertest, Unit Testing, Integration Testing, TDD ☑️ 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲: Shopify Admin REST API, Liquid Theme Customization, Custom Dashboard Integrations Whether you're planning a new SaaS product, restructuring an existing application, or integrating AI into a business workflow, I can help you work through the architectural decisions and implement a practical solution. Let's discuss what you're building, the constraints you're working with, and what the system needs to support.