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Senior Full-Stack Developer | AI/LLM · AWS · React · Node.js Experiences: - Working on migrating 10+ million user profiles into another system - Experience in develop a frontend system (ReactJS) that able to serve for millions of user - Experience in building multiple REST API using different framework such as Typescript nodejs, PHP laravel, Java Spring, C# dotNet to consumed by frontend team - Developed downtime page (ReactJS) that will shown up during system maintenance (combination of cloudflare worker, AWS cloudfront and AWS S3) - Implemented pub/sub design pattern on AWS (SNS, SQS, Lambda) to handle on data sync between new and old system - Developed backend admin system (C# dotNet MVC) for CS to perform their daily jobs - Developed mobile games (Unity3D, cocos2D) that are launched on china market that bring in a huge revenue to company - Maintain and enhance existing mobile app that doing car selling (Same as carlist.my) - Worked with analytics team to implement data tracking (omniture, hotjar, tealium) to better understand user behaviour - Implemented monitoring tools (datadog, newrelic, logentries) into existing system for better visualisation on system health - Developed LLM-powered applications using LangChain and LangGraph, implementing RAG architecture with vector databases, integrating with WhatsApp, and securing authentication via Auth0 (OAuth2/JWT) Tech Stack: Frontend: ReactJS, AngularJS Backend: Node.js, Laravel, .NET, Spring Boot Languages: TypeScript, PHP, Java, C# Cloud & DevOps: AWS, Cloudflare, CI/CD AI / LLM: LangChain, LangGraph, RAG Architecture Architecture: Microservices, Event-Driven Systems, REST APIs

𝙁𝙪𝙡𝙡-𝙎𝙩𝙖𝙘𝙠 𝘿𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧 | 𝙉𝙤𝙙𝙚.𝙟𝙨, 𝙏𝙮𝙥𝙚𝙎𝙘𝙧𝙞𝙥𝙩, 𝙉𝙚𝙭𝙩.𝙟𝙨, 𝙋𝙤𝙨𝙩𝙜𝙧𝙚𝙎𝙌𝙇 I'm a full-stack developer who builds production-ready web applications end-to-end — from database schema design to deployed frontend. My core stack is TypeScript, Node.js/Express, Next.js, and PostgreSQL with Prisma ORM, and I focus on systems that actually hold up in production, not just in a demo. 𝗪𝗛𝗔𝗧 𝗚𝗘𝗧𝗦 𝗕𝗨𝗜𝗟𝗧 - MERN Stack Web Development - AI-Powered Web Applications - AI API Integration (OpenAI, Gemini, Claude & More) - SaaS Platforms & Startup MVPs - Custom Web Applications - Database Design & Optimization (PostgreSQL, Prisma) - Bug Fixes, Performance Optimization & Code Refactoring - SaaS platform development: multi-tenant architecture, subscription billing, role-based access - MVP development: full-stack SaaS MVPs delivered fast - Next.js development: App Router, SSR, SSG, ISR, API routes - React development: dashboards, SPAs, admin panels, TypeScript, Tailwind CSS, shadcn/ui - NestJS development: REST API, GraphQL API, microservices - Full-stack development: end-to-end Next.js, React, Node.js, NestJS apps - Authentication & authorization: JWT, OAuth, refresh token rotation, RBAC - Stripe integration: subscriptions, Stripe Connect, webhooks - Admin dashboard development: data-heavy, high-performance interfaces - Real-time app development: WebSockets, Socket IO - Figma to code: pixel-perfect UI - Cloud and DevOps: AWS, Docker, Vercel, CI/CD, GitHub Actions 𝑾𝒉𝒂𝒕 𝑰'𝒎 𝒔𝒕𝒓𝒐𝒏𝒈 𝒂𝒕: Production-grade auth systems: JWT rotation, refresh token families, account lockout, OTP flows Complex Prisma schema design — multi-model, multi-enum, named relations Role-based access control (RBAC) Third-party integrations: Stripe, Cloudinary, Neon Postgres, LLM/Dify tool-calling Debugging production issues — route-ordering bugs, middleware edge cases, deployment-specific errors — by tracing the actual root cause instead of patching symptoms 𝐼 𝑤𝑜𝑟𝑘 𝑎𝑐𝑟𝑜𝑠𝑠 𝑡ℎ𝑒 𝑓𝑢𝑙𝑙 𝑠𝑡𝑎𝑐𝑘 𝑎𝑛𝑑 𝑐𝑎𝑟𝑒 𝑎𝑏𝑜𝑢𝑡 𝑙𝑜𝑛𝑔-𝑡𝑒𝑟𝑚 𝑠𝑡𝑎𝑏𝑖𝑙𝑖𝑡𝑦: 𝑐𝑙𝑒𝑎𝑛 𝑎𝑟𝑐ℎ𝑖𝑡𝑒𝑐𝑡𝑢𝑟𝑒, 𝑚𝑎𝑖𝑛𝑡𝑎𝑖𝑛𝑎𝑏𝑙𝑒 𝑐𝑜𝑑𝑒, 𝑎𝑛𝑑 𝑠𝑦𝑠𝑡𝑒𝑚𝑠 𝑡ℎ𝑎𝑡 𝑑𝑜𝑛'𝑡 𝑏𝑟𝑒𝑎𝑘 𝑎𝑠 𝑦𝑜𝑢𝑟 𝑝𝑟𝑜𝑑𝑢𝑐𝑡 𝑔𝑟𝑜𝑤𝑠 full stack developer | website development | web application | software developer | web app development | backend developer | custom website | full stack website | build website | front end developer | web developer | mern stack developer | software development | create website | business website | frontend developer | web app | saas developer | nodejs | full stack | website builder | mern stack | javascript | website developer | ai website | html css | website design | ai web application | figma to wordpress | front end | nodejs backend | saas development | api integration | react website | angularjs | responsive design | ecommerce website | nextjs | rebuild website | back end developer | web app developer | ai web app | ai developer | react | database design database programming | react js | react developer | wix code | payment | custom design | automation | build website | custom | website design | react nextjs | javascript developer | react frontend | docker | aws cloud | deployment | api | rest api | github | web application |app development | bug fixing | react developer | custom web app | nextjs developer | ci cd pipeline |next js | react js | react developer | software developer | full stack developer | react | web app | next js developer | javascript | nextjs | figma to react | frontend developer | saas | reactjs | custom website | web developer | crm | typescript | ai developer | tailwind css | react web app | responsive web | react front end | web hosting | full stack dev | front end website

Senior Full-Stack Developer with experience across the entire software lifecycle—from requirement engineering and system architecture to frontend development and cloud deployment. Proven ability to work effectively as an independent developer or as a technical lead for specific modules. Technical Stack Frontend: Next.js, React, Angular, TypeScript Backend: NestJS, FastAPI, Spring Boot, Node.js Cloud/DevOps: AWS (Fargate, S3, EC2), Docker, Kubernetes, Nginx, CI/CD Databases: PostgreSQL, Redis, MongoDB (Vector Search/RAG), Qdrant Specialized Experience Microservices: Designing and managing distributed, high-concurrency architectures. Automation & Scraping: Building distributed web crawlers (Scrapy/Playwright) and automated e-KYC/verification systems. AI Integration: Implementing RAG models, LangChain, and machine learning model productionalization. Lifecycle Management: Handling projects from initial requirements through to production-scale deployment and maintenance. Qualifications 4 Years of Professional Experience as a lead developer on high-scale projects. Master of Computing (Research) — Multimedia University B.S. in Computer Science (Honors) — Multimedia University

Are you looking to build a high-performance SaaS platform, automate a complex supply chain, or integrate secure, production-ready AI into your business workflow? Many developers can write code, but very few understand how to seamlessly blend cutting-edge AI/ML systems with scalable, enterprise-grade architecture while ensuring strict data security (HIPAA, PCI-DSS). I am a Full-Stack Developer and AI/ML Engineer with extensive experience architecting end-to-end solutions for SaaS, Supply Chain, Healthcare (HIS/HMS), and custom ERP systems. Whether you need to build an MVP from scratch or scale an existing enterprise platform, I deliver clean, maintainable code and robust infrastructure. 🚀 Core Expertise & How I Can Help You: AI/ML & GenAI Integration: Building intelligent RAG systems, custom chatbots, and LLM-powered workflows using OpenAI, Anthropic, LangChain, and Vector Databases (Pinecone, Qdrant). Robust Backend & Architecture: Designing secure, high-throughput microservices and APIs using Node.js (NestJS), Python (FastAPI/Django), and PHP, backed by PostgreSQL, MongoDB, or Redis. Modern, Responsive Frontends: Crafting seamless web and mobile interfaces using React, Next.js, Angular, Vue.js, and React Native. Cloud, DevOps & Compliance: Deploying production-ready applications on AWS/GCP/Docker with CI/CD pipelines, keeping security and regulatory standards (HIPAA, GDPR) at the forefront. 🛠️ Technical Snapshot: Frontend: React, Next.js, Angular, Vue.js, React Native, Tailwind CSS Backend: Node.js (NestJS/Express), Python (FastAPI/Django), PHP, Java AI/ML: LLMs, LangChain, Vector DBs, Prompt Engineering, RAG Systems Cloud & Databases: AWS, GCP, Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, Redis Let’s build something scalable. Click the "Invite to Job" or "Hire" button on the top right, and let’s discuss how we can bring your project to life.

I'm a Full-Stack Web Developer specializing in React, Next.js, TypeScript, Node.js, and Express.js, with hands-on experience building SaaS platforms, ERP systems, POS systems, CMS platforms, travel websites, and other business applications. My strongest area is frontend development, but I also build backend APIs, integrate databases, handle business logic, and connect third-party services. This allows me to understand the complete flow of a feature — from the user interface to the backend and database. WHAT I CAN HELP YOU WITH • React / Next.js Development Build new pages, features, reusable components, dashboards, and business applications. • UI & Responsive Development Convert Figma designs into responsive interfaces and fix CSS, Tailwind, layout, and mobile responsiveness issues. • Backend Development Build REST APIs and backend services using Node.js and Express.js, including authentication, authorization, and business logic. • API & Payment Integration Integrate REST APIs, payment gateways, authentication services, and third-party platforms. • SaaS / ERP / POS / CMS Build and maintain business applications such as SaaS platforms, ERP systems, POS systems, CMS platforms, dashboards, and multi-tenant applications. • Database & Backend Services Work with MySQL, MariaDB, MongoDB, CouchDB, Supabase, and Firebase depending on the project's requirements. • Bug Fixing & Refactoring Debug existing applications, fix frontend and backend issues, refactor code, and improve maintainability. • Deployment & Hosting Deploy and maintain web applications using platforms such as Vercel and Railway, with experience working with Cloudflare and DNS configuration. • Performance & SEO Improve frontend performance, responsive behavior, page speed, metadata, and basic technical SEO. TECH STACK Frontend: React, Next.js, TypeScript, JavaScript, HTML, CSS, Tailwind CSS Backend: Node.js, Express.js, REST APIs Database & Backend Services: PostgreSQL, MySQL, MariaDB, MongoDB, CouchDB, Supabase, Firebase Deployment & Infrastructure: Docker, Vercel, Railway, Cloudflare, Domain & DNS Configuration Design & Development Tools: Figma, Git, Github, Gitlab, pnpm SEO & Web Configuration: Technical SEO, Google Search Console, Sitemap, robots.txt, Metadata HOW I WORK I focus on building clean, maintainable, and practical solutions rather than simply making a feature work. You can expect: • Clear and proactive communication • Regular progress updates • Clean and reusable code • Responsive and user-friendly interfaces • Practical solutions based on your business requirements • Ability to work with existing codebases • Flexible collaboration across different time zones Whether you need help fixing an existing issue, implementing a new feature, integrating APIs or payments, or building and maintaining a complete web application, I can help. Have a project in mind? Send me the details and let's discuss how I can help.

𝗠𝗼𝘀𝘁 𝗔𝗜 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝘄𝗼𝗿𝗸 𝗶𝗻 𝗮 𝗱𝗲𝗺𝗼 𝗮𝗻𝗱 𝗯𝗿𝗲𝗮𝗸 𝗶𝗻 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻. 𝗜 𝗯𝘂𝗶𝗹𝗱 𝘁𝗵𝗲 𝗼𝗻𝗲𝘀 𝘁𝗵𝗮𝘁 𝘀𝘂𝗿𝘃𝗶𝘃𝗲. Agentic AI Engineer with 8+ years in software engineering, currently building production GenAI systems inside enterprise banking. Multi-agent architectures, RAG pipelines, and document intelligence running daily in an environment where audit trails and regulatory approval come before anything ships. 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 𝐈'𝐯𝐞 𝐒𝐡𝐢𝐩𝐩𝐞𝐝 🏦 𝐌𝐮𝐥𝐭𝐢-𝐀𝐠𝐞𝐧𝐭 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐑𝐞𝐯𝐢𝐞𝐰 𝐒𝐲𝐬𝐭𝐞𝐦 Agents handling semantic validation, tabular sanity checks, architecture diagram parsing, and inter-link consistency. Manual pre-screening effort down ~80%. Deck processing from 170 seconds to under 30 through parallel execution and targeted caching. [Azure OpenAI, Multi-Agent Orchestration, Mermaid parsing] 📋 𝐌𝐮𝐥𝐭𝐢-𝐀𝐠𝐞𝐧𝐭 𝐑𝐀𝐆 𝐂𝐡𝐚𝐭𝐛𝐨𝐭 𝐟𝐨𝐫 𝐑𝐢𝐬𝐤 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞 Turns hours of policy reading into seconds for Risk, Compliance, and Banking Operations teams. Versioned document ingestion, multi-stage retrieval, session storage built for audit, plus a feedback loop feeding usage reporting. [Azure AI Search, Copilot Studio, Cosmos DB, Azure Functions] 📚 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐀𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐭 Chatbot grounded on internal SharePoint document stores, serving knowledge to internal teams with response grounding and continuous improvement reporting. [Copilot Studio, SharePoint, Power BI] Client names are under NDA. These systems are live, in daily use, and were delivered alongside global enterprise technology partners. Few AI engineers have shipped into that level of scrutiny. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 𝐖𝐢𝐭𝐡 ◆ 𝐀𝐈 & 𝐀𝐠𝐞𝐧𝐭𝐬: LangChain, Multi-Agent Orchestration, Azure OpenAI, OpenAI API, Claude, Azure AI Foundry, Copilot Studio ◆ 𝐑𝐀𝐆 & 𝐃𝐨𝐜𝐮𝐦𝐞𝐧𝐭 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐜𝐞: Azure AI Search, vector search, document ingestion pipelines, Document Intelligence, OCR, semantic retrieval ◆ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Python, Node.js, NestJS, Express, FastAPI, GraphQL, REST APIs, microservices ◆ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React, Next.js, TypeScript, React Native ◆ 𝐃𝐚𝐭𝐚: PostgreSQL, MongoDB, Elasticsearch, Cosmos DB, Redis ◆ 𝐂𝐥𝐨𝐮𝐝 & 𝐎𝐩𝐬: Azure, AWS, GCP, Docker, Kubernetes, CI/CD, Azure Functions ✅ 𝗚𝗼𝗼𝗱 𝗳𝗶𝘁 𝗶𝗳: You have a real business process where AI can produce measurable savings Budget starts at $3K with a defined target outcome There's a decision maker involved, not just an idea ❌ 𝗡𝗼𝘁 𝗮 𝗳𝗶𝘁 𝗶𝗳: Price is your number one decision factor You expect a production AI system in under two weeks You want a demo rather than something that holds up under real use 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗸𝗲𝗲𝗽 𝗺𝗲 𝗮𝗿𝗼𝘂𝗻𝗱 → 𝐈 𝐬𝐜𝐨𝐩𝐞 𝐛𝐞𝐟𝐨𝐫𝐞 𝐈 𝐛𝐮𝐢𝐥𝐝. One client said my discovery questions helped him understand his own project better. → 𝐄𝐧𝐝 𝐭𝐨 𝐞𝐧𝐝 𝐨𝐰𝐧𝐞𝐫𝐬𝐡𝐢𝐩. Architecture through deployment. I've led teams and made build versus buy calls. → 𝟗𝟔% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 with a 5 star average across completed Upwork projects. → 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝. AWS certified. Microsoft Fabric (DP-700). Upwork Skill Certified in Node.js Full Stack Development. Contributor to PptxGenJS, an open source npm package used by thousands of developers. If you're building something with AI where it actually has to work, send me what you're building. I'll reply within a day with an honest read on scope, timeline, and fit. If I'm not the right person, I'll say so. Ali