TOP RATED ✅ | 100% Job Success ✅ With over 6 years of hands-on experience in Ruby on Rails(ROR), modern JavaScript frameworks like ReactJS, and cross-platform mobile development with React Native. My work has directly contributed to increasing end-user engagement by 30–40% and has helped clients grow their profits exponentially through performance-driven development and user-focused design. I've built and scaled a wide range of web and mobile applications; many for fast-growing, venture-backed startups. Whether building from scratch or optimizing existing platforms, I bring a product-oriented mindset and a proven track record of delivering high-impact results. In recent years, I've embraced an AI-first engineering approach, leveraging tools like OpenAI, Anthropic, and Gemini not just as integrations, but as force multipliers in the development process itself. I work daily with Claude Code, OpenAI Codex, Cursor, and Lovable to compress weeks of work into days; one recent example is a 6,000+ line architectural refactor I shipped in two days using Claude Code, without compromising on code quality or test coverage. This is what allows me to help clients validate ideas faster, ship features sooner, and ultimately land more business. I've practiced all the software engineering principles and technologies needed to create reliable and maintainable production-ready web and mobile applications from scratch. 🚀 You have an idea for your MVP web or mobile app? Let's talk and give me a trial to help you to build it. 🐛 Do you have a bug that needs to be fixed ASAP? Let me take care of it, and if I can't resolve it, there will be NO CHARGE. 🌟 You want to scrape a site for analysis and comparison? 📱 Want a cross-platform mobile app built with React Native that ships to both iOS and Android from a single codebase? 🤖 Want to build AI-powered features into your product? I've shipped production AI features for real clients and know how to do it fast. 🕹️ Need an extra main player in your team to add new features? I'm here to help you. Primary expertise is below: Programming language: Ruby, JavaScript, TypeScript, Python, C, C++, Shell script Ruby-Based frameworks: Ruby on Rails(v5, 6, 7, 8), Sinatra Ruby gems: ActiveAdmin/Avo, Resque, ruby-llm, solid-queue, RSpec, Kamal Database: PostgreSQL, MySQL, MongoDB, Redis. AI Tools & Integrations: OpenAI GPT-4o, Anthropic Claude, Google Gemini, AI-assisted development workflows (compound engineering) AI-Assisted Dev Tools: Claude Code, OpenAI Codex, Cursor, Cline, Lovable — used daily to ship faster without cutting corners on quality Mobile: React Native (iOS + Android), Expo Other Frameworks/Tools: ReactJS, Next.js, Django, Shopify, Elastic search, Beautiful Soup, JIRA, Heroku, AWS, Trello. I provide the following services: - Full Stack Web and Mobile app development, optimization, and third-party integrations - Cross-platform mobile app development using React Native and Expo for iOS and Android - Development of API clients, bots, various tools, and libraries - Rapid AI-assisted prototyping using compound engineering workflows with Claude Code, Codex, and Lovable to ship MVPs and new features 3–5x faster than traditional timelines - Create components consistent with every other application layer - Set up and deploy development (staging), QA, and production environments. - Able to resolve issues in the application of any layer, allowing a project to not seek or wait for another narrowly specialized developer. In other words, I can maximize overall project development performance by having enough horizon and insight to think of it systematically. - Web Scraping for gathering, analyzing, and utilizing data to gain a competitive advantage I'm ready for any demo or evaluation work based on our next steps. 🚀 Let's collaborate and create something truly transformative! ✨

If you take a moment to look at my job history, you'll notice that a significant portion of my work comes from repeat clients, a strong testament to my commitment to delivering exceptional result. I help coaches, consultants, course creators, and service-based businesses generate more leads, automate their follow-ups, and create seamless customer journeys using GoHighLevel and Kajabi. Whether you're looking to build a high-converting funnel, automate your marketing, launch an online course, create a membership community, or optimize your CRM, I help you build systems that not only look professional but also drive measurable results. With over 60 successful projects completed and a 100% client satisfaction rate, one thing has remained consistent throughout my Upwork journey: clients come back. ⭐ Here's what I can bring to your project ⭐ 🎯 KAJABI Kajabi Landing Pages & Sales Pages Kajabi Online Community Setup Kajabi Membership Site Kajabi Coaching Platform Setup Kajabi Course Setup & Online Course Creation Kajabi Prerecorded and Automated Webinar Setup Kajabi Website Design & Kajabi Website Redesign Kajabi Sales Funnel & Kajabi Pipeline Setup 🎯 GOHIGHLEVEL SETUP & CRM OPTIMIZATION GoHighLevel account setup GoHighLevel CRM pipeline setup GoHighLevel contact management system GoHighLevel lead tracking and tagging GoHighLevel lead scoring automation GoHighLevel opportunity pipeline automation GoHighLevel snapshot creation GoHighLevel multi-location account setup GoHighLevel agency account configuration 🎯 GOHIGHLEVEL AUTOMATION & WORKFLOW BUILDING GoHighLevel workflow automation GoHighLevel lead routing automation GoHighLevel SMS automation GoHighLevel email automation GoHighLevel multi-channel automation GoHighLevel follow-up sequences GoHighLevel trigger automation GoHighLevel conditional logic automation GoHighLevel calendar booking automation GoHighLevel appointment reminder automation 🎯 Integrations with: GoHighLevel Zapier integration GoHighLevel Make (Integromat) integration GoHighLevel Stripe payment integration GoHighLevel HubSpot integration GoHighLevel Slack integration GoHighLevel API integrations 🎯 GOHIGHLEVEL FUNNEL & LANDING PAGE BUILDING GoHighLevel lead generation funnels GoHighLevel sales funnels GoHighLevel VSL funnels GoHighLevel webinar funnels GoHighLevel appointment booking funnels GoHighLevel landing page design GoHighLevel conversion-focused landing pages GoHighLevel upsell and downsell funnel flows GoHighLevel offer funnels 🎯 What Sets Me Apart ⭐Proficiency in Coding Funnels ⭐On-Time Delivery ⭐Full Time Freelancer ⭐Ongoing Support ⭐Quality service ⭐Customer's satisfaction ⭐Excellent communication ✪ Let's collaborate and discover how we can identify, analyze, and produce the results you desire for your business. ✪ PS: Beyond website and online course development, I consider myself a strategic partner in helping you identify and implement the crucial elements necessary for achieving the success you desire. Profile Keywords: Best Freelance GoHighLevel Experts for Hire (Jun 2026) Best Freelance Kajabi Experts for Hire (Jun 2026) Top Kajabi, Thinkific & GoHighLevel Specialist for Hire 2026 #GoHighLevel #GoHighLevelExpert #GoHighLevelAutomation #GoHighLevelSetup #GoHighLevelIntegration #GoHighLevelAccountSetup #GoHighLevelSystemSetup #GoHighLevelMultiAccount #GoHighLevelSubAccounts #GoHighLevelPipelineAutomation #GoHighLevelPipelines #GoHighLevelForms #GoHighLevelCalendars #GoHighLevelChatWidget #GoHighLevelTriggers #GoHighLevelWorkflows #GoHighLevelSMSAutomation #GoHighLevelEmailAutomation #GoHighLevelA2PSetup #GoHighLevelA2PRegistration #GoHighLevelTwilioSetup #GoHighLevelStripeIntegration #GoHighLevelGoogleCalendar #GoHighLevelIntegrationExpert #GoHighLevelAutomationEngineer #GoHighLevelSystemEngineer #GoHighLevelWorkflowAutomation #GoHighLevelProcessAutomation #GoHighLevelAutomationSpecialist David Kajabi Expert, #KajabiFunnel #KajabiCourseCreation #KajabiAutomation #KajabiSalesPage #KajabiLandingPage #KajabiMigration #OnlineCourseSetup #KajabiDeveloper #KajabiSpecialist #KajabiSalesFunnel #BuildKajabiWebsite #KajabiSetup #KajabiExpert #KajabiForCoaches #CourseCreation #KajabiPro #KajabiDesigner #KajabiConsultant #FitnessWebsite #WellnessWebsite #KajabiServices #OnlineCoursePlatform #Kajabidesigner #Kajabiwebsite #kajabisalespage #Kajabi @kajabi @kajabiexpert @kajabiwebsite Kajabi website designer | davidkajabiexpert Kajabi consultant, Kajabi specialist, Kajabi instructor, Kajabi course creator, Kajabi virtual assistant, Kajabi support, Kajabi integrations, Kajabi marketing, Kajabi sales, Kajabi membership site Upwork, Web Design, Kajabi, CSS, HTML, Landing Page, Web Development, Graphic Design, Figma, Kajabi Specialist, Kajabi Developer, Kajabi Expert, Kajabi Support, Kajabi Designer, Kajabi jobs, Kajabi consultant, Kajabi

𝐇𝐢 , 𝐈’𝐦 𝐋𝐨𝐤𝐞𝐬𝐡, 𝐚 𝐅𝐮𝐥𝐥𝐒𝐭𝐚𝐜𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫, 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐡𝐨 𝐝𝐞𝐞𝐩𝐥𝐲 𝐮𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐬 𝐰𝐡𝐚𝐭 𝐢𝐭 𝐭𝐚𝐤𝐞𝐬 𝐭𝐨 𝐭𝐮𝐫𝐧 𝐚𝐧 𝐢𝐝𝐞𝐚 𝐢𝐧𝐭𝐨 𝐚 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐭𝐡𝐚𝐭 𝐮𝐬𝐞𝐫𝐬 𝐥𝐨𝐯𝐞, 𝐪𝐮𝐢𝐜𝐤𝐥𝐲, 𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭𝐥𝐲, 𝐚𝐧𝐝 𝐰𝐢𝐭𝐡 𝐩𝐫𝐞𝐝𝐢𝐜𝐭𝐚𝐛𝐥𝐞 𝐫𝐞𝐬𝐮𝐥𝐭𝐬. For the past years, I’ve led the 𝐒𝐓𝐀𝐍𝐅𝐎𝐑𝐃 development team and helped 50+ companies launch AI-powered platforms, SaaS products, Web Apps, and automation systems used across EdTech, healthcare, fintech, logistics, and enterprise operations. My background uniquely blends engineering, product thinking, and startup-level execution - which means you get not only code, but clear strategy, reliable delivery, and a partner who understands the full lifecycle from concept to launch. 𝐓𝐨𝐝𝐚𝐲, 𝐚 𝐛𝐢𝐠 𝐩𝐚𝐫𝐭 𝐨𝐟 𝐡𝐨𝐰 𝐰𝐞 𝐰𝐨𝐫𝐤 𝐢𝐬 𝐯𝐢𝐛𝐞 𝐜𝐨𝐝𝐢𝐧𝐠 —> 𝐜𝐨𝐦𝐛𝐢𝐧𝐢𝐧𝐠 𝐀𝐈 𝐭𝐨𝐨𝐥𝐬 (𝐆𝐏𝐓, 𝐜𝐨𝐩𝐢𝐥𝐨𝐭𝐬, 𝐢𝐧𝐭𝐞𝐫𝐧𝐚𝐥 𝐚𝐜𝐜𝐞𝐥𝐞𝐫𝐚𝐭𝐨𝐫𝐬) 𝐰𝐢𝐭𝐡 𝐬𝐞𝐧𝐢𝐨𝐫 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠. This lets us move significantly faster without sacrificing quality. ➤ 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 𝐖𝐈𝐓𝐇? ▸ 𝐅𝐮𝐥𝐥𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Develop custom web apps tailored to business requirements • Design & implement end-to-end frontend & backend architectures • Build real-time applications with responsive & dynamic user experiences • Deliver MVPs and full-scale SaaS products from concept to production • Enhance and scale existing web applications for better performance and usability • Identify and resolve bugs, stability issues, and performance bottlenecks • Optimize applications for speed, reliability, and scalability • Build dashboards, admin panels, & client portals • Develop enterprise-grade applications (CRM, ERP, HRM, DMS) Implement data visualization, analytics, and reporting systems for actionable insights ▸ 𝐒𝐚𝐚𝐒 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • End-to-end MVP development, from concept to launch • Design and build multi-tenant SaaS architectures • Implement secure authentication and role-based access control (RBAC) • Integrate billing systems and subscription workflows (e.g., Stripe) • Develop scalable, maintainable system architectures for long-term growth ▸ 𝗔𝗜-𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 • AI Agents & Autonomous Workflows (LangChain, LangGraph, CrewAI, MCP) • Custom AI Chatbots for SaaS & enterprise platforms (OpenAI GPT, Claude/Anthropic/Gemini integrations) • RAG Systems, private knowledge bases with vector DBs (Pinecone, Milvus, Weaviate) • AI Automation Pipelines (n8n, Make) with API & Webhook orchestration • AI-powered document processing & structured data extraction • Third-party AI integrations into CRM, ERP, and internal tools • AI-accelerated Full Stack development, faster delivery, same quality ➤ 𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐈𝐄𝐒 ▸ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 (𝐍𝐨𝐝𝐞𝐣𝐬, 𝐏𝐲𝐭𝐡𝐨𝐧,.𝐍𝐞𝐭,𝐂# & 𝐇𝐢𝐠𝐡-𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐀𝐏𝐈𝐬 • Nodejs,Python, .Net, C#, Django, DRF, FastAPI, Flask, Express.js, .NET Core, ASP.NET • Microservices, WebSockets, REST APIs, GraphQL • Celery, Redis, AsyncIO, Task Queues, Strapi, Sanity • OAuth2, JWT Auth, RBAC, multi-tenant architecture ▸ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 : • Next.js,React.js,Angular,TypeScript, Javascript,Redux Toolkit, React Query • Material UI, Chakra UI, Tailwind, Bootstrap,Three.js • SPA/SSR/SSG, component architecture, responsive UI ▸ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐃𝐚𝐭𝐚 𝐄𝐧𝐠: • PostgreSQL, MySQL, SQLite, SQLAlchemy, Alembic • MongoDB, Redis, Elasticsearch • ETL, Pandas/Numpy for data processing ▸ 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝: • AWS (EC2, S3, Lambda, ECS), Azure, DigitalOcean, Heroku • Docker, Docker Compose, CI/CD (GitHub Actions, GitLab CI) • NGINX, Caddy, Load Balancing, Autoscaling ▸ 𝐀𝐈 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 • Voice AI Agent, AI & Agents: OpenAI (GPT-4o/GPT-5), Anthropic Claude, LangChain, LangGraph, CrewAI • RAG & Data: RAG Pipelines, Pinecone, Milvus, Weaviate, Structured Data Extraction • Automation: n8n, Make, Zapier, Vapi, Retell AI, ElevenLabs, Voiceflow, Twilio ➤ 𝐖𝐇𝐀𝐓 𝐂𝐋𝐈𝐄𝐍𝐓 𝐒𝐀𝐘? “𝗟𝗼𝗸𝗲𝘀𝗵 𝗶𝘀 𝗮𝗺𝗼𝗻𝗴𝘀𝘁 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝗼𝗻 𝘁𝗵𝗲 𝗨𝗽𝘄𝗼𝗿𝗸 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺. 𝗛𝗲 𝗵𝗮𝘀 𝗴𝗼𝗻𝗲 𝗮𝗯𝗼𝘃𝗲 𝗮𝗻𝗱 𝗯𝗲𝘆𝗼𝗻𝗱 𝘄𝗶𝘁𝗵 𝗵𝗶𝘀 𝗽𝗿𝗼𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 𝗮𝗻𝗱 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲. 𝗛𝗶𝘀 𝗳𝗹𝘂𝗲𝗻𝗰𝘆 𝗮𝗰𝗿𝗼𝘀𝘀 𝘁𝗵𝗲 𝗲𝗻𝘁𝗶𝗿𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗰𝘆𝗰𝗹𝗲, 𝗰𝗼𝗺𝗯𝗶𝗻𝗲𝗱 𝘄𝗶𝘁𝗵 𝗮𝗲𝘀𝘁𝗵𝗲𝘁𝗶𝗰 𝘀𝗲𝗻𝘀𝗲 𝗮𝗻𝗱 𝗰𝗹𝗲𝗮𝗻 𝗰𝗼𝗱𝗶𝗻𝗴, 𝗶𝘀 𝗼𝘂𝘁𝘀𝘁𝗮𝗻𝗱𝗶𝗻𝗴. 𝗜𝗳 𝘆𝗼𝘂 𝘄𝗮𝗻𝘁 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁 𝗼𝗳 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁, 𝗟𝗼𝗸𝗲𝘀𝗵 𝗶𝘀 𝗮 𝟱-𝘀𝘁𝗮𝗿 𝗽𝗹𝗮𝘆𝗲𝗿.” 📩 𝙇𝙚𝙩'𝙨 𝘽𝙪𝙞𝙡𝙙 𝙎𝙤𝙢𝙚𝙩𝙝𝙞𝙣𝙜 𝙂𝙧𝙚𝙖𝙩 𝙏𝙤𝙜𝙚𝙩𝙝𝙚𝙧! Whether you're launching a SaaS product, integrating AI agents into your platform, automating operations with n8n, or scaling an enterprise app, message me and let's map out your technical roadmap.

I am Usama Jawad, a Full-Stack Software Engineer with 5+ years of experience building fast, scalable, and AI-ready web applications. I specialize in modern JavaScript/TypeScript ecosystems and help teams fix slow, unstable products or ship new features including AI search, chatbots, and automation quickly and cleanly. I work across frontend, backend, and AI systems, delivering production-ready solutions with a strong focus on performance, maintainability, and long-term scalability. 💡 What I Can Help You With Frontend (React / Next.js / Angular) Pixel-perfect UI implementations Dashboards & complex interfaces Performance optimization & component refactors Backend (Node.js / NestJS / GraphQL / FastAPI / Django) Scalable APIs & backend architectures Database design & complex data workflows High-performance, reliable services AI & LLM Features GPT-4o / Claude integrations RAG pipelines & AI agents (LangChain, LangGraph) Vector search (Weaviate, Pinecone, Supabase, PgVector) Full-Stack MVP Development Build and launch your product in weeks, not months Bug Fixing & Codebase Stabilization Clean architecture, DDD, modular refactors Performance tuning & technical debt reduction AWS & DevOps Lambda functions, APIs, CI/CD pipelines Monitoring, secure deployments, and scaling 🧩 Recent Wins 1- Built a Human Resource Management System (HRMS) with employee profiles, attendance tracking, leave management, and role-based access using React, Node.js, and PostgreSQL. 2- Developed an Operations Management System to track tasks, workflows, and internal processes, improving visibility and day-to-day efficiency for teams. 3- Improved performance and stability of an existing React + Node.js application, fixing bugs, optimizing APIs, and cleaning up frontend state management. 4- Integrated basic AI features like smart search and automated suggestions to enhance user experience and reduce manual work. 🔥 Why Clients Choose Me ✔ Full-stack versatility — frontend, backend, AI, and deployment handled by one engineer ✔ Clear communication — fast updates, realistic timelines, no surprises ✔ Clean, maintainable code — 3D Atomic Design, performance-first mindset ✔ Startup-friendly speed — I move fast without breaking things ✔ Long-term partner — ongoing maintenance, scaling, and improvements 🚀 I’m a Great Fit If You Want To: Fix a messy or legacy codebase Add AI features (chatbots, semantic search, automation) Build a scalable MVP Modernize UI/UX Improve performance or stability Extend an existing React / Node.js product 📩 Ready to Build or Fix Your App? Message me today for a free 10-minute discovery call and share your idea. I will review it and share a clear, practical plan no fluff, no generic advice. Let’s build something fast, scalable, and future-ready 🚀

With over 12 years of experience in this industry. I specialize in delivering complex, scalable solutions to enterprise-level clients, with a proven track record of addressing their unique challenges. My experience spans a variety of industries, allowing me to design and implement robust systems that meet high standards for performance, security, and scalability. As a Seasoned developer, I specialize in PHP, Golang, Python, NodeJS Javascript, Typescript, ReactJS, Angular, ExpressJS, NextJS, Django, GraphQL, Laravel, CI, YII, Zend, and a range of databases including MongoDB, MySQL, PostgreSQL, Dgraph, DynamoDB, and FireStore. I am well-versed in various DevOps tools and practices too, such as CI/CD pipelines, Kubernetes, Docker, Terraform, GCP, and AWS. I have a track record of delivering high-quality projects, including complex Web and SaaS Platforms, Cross-platform mobile applications, EdTech platforms, and Fintech solutions. I adhere to best practices and code standardization, ensuring optimal performance and maintainability of applications. Why Choose Me: - Extensive Experience: With 12 years in the IT industry, I bring a wealth of experience. I have worked on numerous projects across various domains, gaining insights and expertise that I can leverage to deliver exceptional results for your project. - Full-Stack Proficiency: I am well-versed in frontend and backend technologies, including PHP, Laravel, Python, Node.js, JavaScript, React, Angular, and more. This allows me to handle all aspects of your project with efficiency and expertise. - Effective Communication: Clear and timely communication is key to project success. I prioritize open communication channels to ensure that you are always informed about the project status, milestones, and any potential roadblocks. - Collaborative Approach: I believe in collaboration and value your input throughout the development process. Your vision and feedback are integral to shaping the final product, and I work closely with you to bring your ideas to life. - Commitment to Quality: I am committed to delivering solutions that not only meet your immediate needs but also set you up for long-term success. I adhere to best practices, follow industry standards, and rigorously test my code to ensure reliability and scalability. - Customer Satisfaction: Your satisfaction is my top priority. I strive to build lasting relationships with my clients by delivering exceptional service, exceeding expectations, and providing ongoing support even after the project is completed. I would love to work with you to build tailor-made solutions for your business. My ability to collaborate effectively and communicate has been key in cultivating a supportive and efficient work atmosphere. Let's connect and discuss how I can contribute to your success! Thank you, Fc Patidar

22+ years designing enterprise systems built for reliability, performance, and long-term maintainability. I currently serve as Head of Technology for OursTube, a video streaming platform, alongside consulting engagements for startups and growing businesses. I've shipped 50+ platforms — a government compliance system for 5,000+ Pakistan Railways employees (World Bank-audited), an AI module that cut manual data entry by 85%, FinTech backends handling payments across UK, UAE and Europe, and a YouTube-style video platform with WebRTC real-time chat serving thousands of concurrent users. If you need someone to write a feature and disappear, I'm not the right fit. If you need someone who thinks about schema design, security, query performance, and what happens at 3x your current load — that's exactly what I do. ━━ WHAT I BUILD WELL ━━ ► FinTech & Payment Systems Built complete payment ecosystems including Stripe Connect onboarding, subscriptions, creator payouts, webhook orchestration, payment abstraction layers, and multi-provider payment integrations (Stripe, Wise, Payoneer, JazzCash, EasyPaisa). ► Backend Architecture (Node.js / Laravel / NestJS) Designed scalable RESTful and GraphQL APIs with optimized PostgreSQL queries, Redis caching, and clean service boundaries for high-performance enterprise applications ► PostgreSQL at Scale Schema design, migration strategies, index optimisation. I reduced a government system's query time from 15 seconds to 200ms. Connection pooling, partitioning, full audit logging for compliance. ► AI / OpenAI API Integration Production AI systems using OpenAI GPT-4/4o with OCR, intelligent document processing, provider-agnostic architecture, prompt versioning, structured outputs, and enterprise workflow automation. ► Security & Compliance JWT with refresh rotation, RBAC, OAuth 2.0, audit trails. Passed World Bank security audit for a public-sector system. I treat security as architecture, not a checkbox. ► Amazon SP-API / Shopify / E-commerce Japanese marketplace integration, multi-vendor fulfilment platforms, rate limit management, exponential backoff. Real resilience patterns, not optimistic code. ► WordPress & WooCommerce (Custom & Complex) Multi-vendor WooCommerce platforms with custom commission logic, AJAX cart systems, ACF Pro integrations, and vendor dashboards. WP Rocket + Cloudflare configuration. Custom PHP plugins, payment gateway integration (Stripe, PayPal, JazzCash), and performance optimization for high-traffic stores. I debug codebases I didn't write — fast. ━━ PAST ENGAGEMENTS ━━ • Pakistan Railways (2021–2023) — Audit & Fuel Management systems for 5,000+ staff. World Bank compliance. Query optimisation: 15s → 200ms. • YetiScanner AI (2024) — OpenAI GPT-4 document processing for YetiForce CRM (Netherlands). 85% reduction in manual invoice entry. • Global Connect ERP (Bahrain, 2024–2025) — Oracle monolith → PostgreSQL microservices. 3× performance improvement. • Ourstube Media (2025–Present, Current) — Head of Technology for a YouTube-style platform: Node.js microservices, WebRTC, custom AdTech, 4-provider payment abstraction. 60% faster video processing via CDN. • Thread Production ERP (2024) — Multi-tenant Laravel 11 system for textile manufacturing. Complex RBAC across multiple facilities. ━━ STACK ━━ Node.js · TypeScript · NestJS · Express Laravel (5–11) · PHP PostgreSQL · MySQL · MongoDB · Redis · Oracle AWS (EC2, S3, RDS, Lambda, CloudWatch), Docker, Redis, Grafana, GitHub Actions OpenAI API · WebRTC · WebSockets Stripe · Twilio Voice · Twilio Functions · SendGrid · Shopify API · Amazon SP-API · WooCommerce ━━ HOW I WORK ━━ I take a small number of engagements at a time so I can give each one proper attention. I communicate daily, push working code early, and flag risks before they become problems. Timezone: PKT (UTC+5) — available for UK, UAE and European business hours with overlap. Whether you need it built, or need an architect to validate the plan and pressure-test the decisions before you build — that's work I do. If your project involves backend architecture, payment systems, AI integration, database performance, ERP/systems integration, or taking a messy codebase and making it production-ready, send me a message with what you're building. I'll tell you honestly if I'm the right person for it.

For around 10 years already, I have helped countless customers build all sorts of systems, including human systems; engineering teams that perform and deliver. In the age of AI, harnessing its capabilities will be a key component of every successful business. When hiring a successful candidate to help you build your infrastructure and software you will want to assess their critical thinking, proactivity, reliability and ability not only to use AI but every tool they pick. These are abilities you can find all around the world, but the task to find the talent might feel difficult or even overwhelming. Due to culture, timezone and education differences. I help you find the needle in the haystack, the top performers, the diligent workers, the easy to communicate with folks that are a gem and will accompany you for years in your organization. This is about suitability and proper fit. Specially within small to medium organizations that are looking to disrupt a niche or section of an industry. Adding a single Engineer to your team nowadays can represent a significant increase in your output thanks to AI. So from now to when AI is completely autonomous, for which I think we still have at least a decade (or half of that at minimum)... adding Engineers is still crucial, but adding the right Engineers is still one of the most important things you can do for your organization.

Most e-commerce brands and agencies don't have a data problem. They have a trust problem. Tracking breaks. Numbers in GA4, Meta, Google Ads, and Shopify never match. Dashboards get rebuilt by hand every month, and no one's sure which figure to spend against. I fix the whole chain, end to end: from the tag firing on your site, to the BigQuery pipeline that cleans and unifies the data, to the dashboard your team makes decisions on. I'm an Analytics Engineer who builds the data engineering layer (automated pipelines, BigQuery modeling, BI) on top of deep, hands-on tracking implementation roots. That combination is the point. Because I own both the server-side tracking and the pipelines it feeds, the data stays coherent the whole way down, with no hand-offs between three specialists who each blame the other when the numbers don't add up. I work almost exclusively with e-commerce brands and marketing, growth, and advertising agencies (white-label welcome). I speak ROAS, MER, CAC, and LTV, so you tell me the business goal, not the technical spec. --- What I build Marketing & e-commerce data pipelines (GCP / BigQuery), the core of what I do: - Automated ETL/ELT from GA4, Shopify, ad platforms (Meta, Google, TikTok), and CRM into BigQuery - Ingestion via Python, dbt, Fivetran, Stitch, or the GA4 native BigQuery export - BigQuery data modeling: staging, intermediate, and mart layers, partitioning, clustering, incremental models - Data cleaning, normalization, deduplication, and identity stitching across sources - Orchestration and scheduling on GCP: Cloud Run, Cloud Functions, Pub/Sub, Cloud Scheduler - Cost optimization, query tuning and table design so the warehouse scales without surprising your bill - Deliverables: automated pipeline, single source of truth in BigQuery, attribution-ready datasets, documented and modeled tables refreshed on schedule, a warehouse your next analyst can actually read Tracking & analytics implementation, the foundation the data depends on: - GA4: advanced e-commerce, custom events, funnels, attribution-ready data layer - Google Tag Manager, client-side and server-side (Stape or GCP) - Conversion APIs: Meta CAPI, TikTok Events API, Google Ads enhanced conversions, Snapchat, LinkedIn - Client-to-server migration to recover conversions lost to iOS, ITP, and ad blockers - Consent Mode v2 and CMP setup (OneTrust, Usercentrics), first-party capture, hashing, deduplication - dataLayer, JavaScript, and DOM work for custom event tracking - Deliverables: documented tracking plan, validated event and conversion setup, tag and trigger audit, numbers that reconcile across platforms BI & reporting, the part your team actually looks at: - Looker Studio dashboards powered by BigQuery (Power BI / Tableau / Metabase on request) - Revenue analytics, channel performance, funnels, ROAS/CAC/LTV scorecards - Automated SQL transformations and scheduled workflows, no manual monthly rebuilds - Deliverables: CEO-ready dashboard, automated refresh, documentation your team can follow --- Why clients hire me: I combine data engineering, analytics implementation, and BI automation into one workflow. Instead of isolated dashboards or pipelines built on shaky tracking, you get a full-stack, maintainable, accurate data system, with one person accountable from the tag on your site to the number on the dashboard. Agencies can put me behind their own client work: on calls if you want me there, invisible if you don't. Certifications: - Google Cloud Professional Data Engineer (2025) - Google Analytics Individual Qualification (verified by Upwork) - Meta Certified Marketing Developer (Credly) Whether you need a GA4-to-BigQuery pipeline, broken tracking fixed, Shopify analytics modeling, or a complete analytics foundation, tell me what you're trying to decide with the data, and I'll build the system that gets you there.

🟡 🟡 🟡 Achieved Rising Talent status in just a week as a new freelancer 🚀 by delivering reliable results and high-quality work. 🏆 5+ Years of Real-World Product Development 🥇 150+ High-Impact Projects Successfully Delivered 💼 Focus on building high-quality, scalable applications that exceed expectations Hi, I’m Mateen. I am not just a developer - I am a strategic technical partner who helps businesses launch, scale, and dominate their markets. My goal is to create long-term professional relationships by understanding business needs and solving complex technical challenges efficiently. I can leverage my expertise in both front-end and back-end development to bring your ideas to life while ensuring your product remains scalable and future-proof. I’m passionate about writing clean, reusable, and maintainable code. How I Can Maximize Your Product’s Success: High-Impact Custom Development: Experienced in both client-side and server-side programming, ensuring seamless integration and complete functionality. Performance, Speed & Scalability Upgrades: Enhance application speed, scalability, and overall efficiency to deliver an excellent user experience. Reliable Delivery: Over the years, I’ve built a strong reputation for delivering robust solutions on time. Tech Stack & Expertise 🌐 Front-End Development: Proficient in React.js, Next.js, Gatsby, and styling with TailwindCSS and Material-UI to create responsive, dynamic user interfaces. 🔙 Back-End Development: Skilled in Node.js, Nest.js, and Python/Django, building scalable backend architectures with clean and efficient code. 📱 Mobile App Development: Develop cross-platform mobile applications using React Native, delivering smooth, native-like user experiences. 🔧 API Development: Design secure and scalable APIs using GraphQL, Node.js, and Django REST Framework. 🗄️ Database Management: Build structured and optimized databases using PostgreSQL to ensure data integrity and high performance. 🌟 Let’s Build Something Amazing Together! Feel free to reach out — I’d love to discuss how I can contribute to your project’s success. ======================================================================= Keywords to Find Me on Upwork: Frontend React Developer, React.js Developer, React Next.js Developer, Full Stack React Developer, Node.js Developer, React Native Developer, Frontend React Engineer, Full Stack Engineer, SaaS Frontend, High-Performance React, React + Node.js, Next.js SSR, Tailwind CSS, API Integration, Dashboard React, Mobile React Native, PostgreSQL.

Some failures cost more than money. A healthcare platform that leaks patient data does not just pay a fine, it loses the trust of people who came to it vulnerable. A SaaS shipped without real security ships a liability. A WordPress project handed off without documentation creates dependency. I build so that does not happen. I am an AI harness engineer. I run frontier AI models, Claude and others, as an engineering harness to move from architecture to working, tested code fast, and I own every decision. I design the system, review every line, write the tests, and run the security scans before anything ships. You get the speed of AI with the judgment of an engineer who knows what a failure actually costs. Before code, I spent four years as a Physiotherapy Technologist in clinical care. I know what happens inside a clinic when a system fails a real patient, and that changes every architectural decision I make. Across 20+ production systems my work is verified by Prowler, Checkov, Trivy and SonarQube before delivery, not taken on trust. ───────────────────────────────────────── WHAT I BUILD ───────────────────────────────────────── AI, RAG and agent systems (the core of my work): LightRAG knowledge-graph pipelines, hybrid retrieval with Pinecone, BM25 and self-hosted cross-encoder reranking, multilingual embeddings, agentic and tool-use workflows, and multi-provider setups across Claude, Gemini and GPT-4 with a circuit breaker for uptime. HIPAA-safe chatbots with hallucination detection, PII scrubbing, grounding gates, zero-trust auth and full observability through Prometheus, Grafana and Loki. I also automate real business workflows end to end with n8n and LangChain. Healthcare and HIPAA platforms: telemedicine systems, dental clinic apps, patient portals and AI chatbots with HIPAA 2026, FHIR R4, GDPR and SOC 2 Type II enforced in the architecture and verified by automated scans. PHI encryption, audit logging, breach detection and RBAC are the foundation, not an afterthought. Cloud and DevOps: AWS, GCP and Azure together. Kubernetes on AKS and EKS, Terraform, GitHub Actions CI/CD, and a near zero-cost idle architecture at $2 per month instead of $300 on traditional infrastructure. Full stack SaaS: React 18/19, Next.js, Node.js, Python FastAPI, TypeScript, Supabase, PostgreSQL with RLS and pgcrypto, Stripe billing, multi-tenant architecture and Android apps via Capacitor. WordPress and Shopify: custom PHP plugins from scratch with OOP PHP 8.1 and PSR-4, headless WordPress and React via WPGraphQL and WooCommerce, Shopify Plus with Hydrogen, Shopify Functions in Rust and WASM, custom Remix apps on Cloudflare Workers, Contentful, Strapi, Elementor and ACF Pro. ADA and WCAG 2.1 AA remediation delivered for a real client in the USA. ───────────────────────────────────────── SELECTED PROJECTS ───────────────────────────────────────── MediConnect V3: tri-cloud telemedicine, 7 microservices, HIPAA/GDPR/FHIR R4, AI chatbot, 756 tests, $2/month idle. Yuktha Wellness (real client): production RAG health chatbot, 6 conditions, multilingual (Hindi, Tamil, Telugu, Bengali), Pinecone hybrid retrieval, code-enforced safety gates. RAG Production Stack: 23 containers, zero-trust 2FA, 6 compliance scanners, full observability. Fine Touch Marketing (real client): 17 n8n automation workflows, Claude-powered SEO and content, multi-site SMS follow-up. EquipCert AI: OSHA inspection SaaS, multi-AI, offline-first, GPS evidence, Stripe 3-tier billing. Chronos: headless WooCommerce and React, custom PHP plugin, WordPress 7.0 AI integration. RegenAI: Shopify Plus, Hydrogen, Rust/WASM Functions, custom Remix app, compliance-as-code CI. Groza Learning Center (real client, Los Angeles): ADA/GDPR remediation, 100+ errors fixed, zero theme modifications. EmailFinder, EDS Dental, HealthCode Analysis and more on my portfolio. ───────────────────────────────────────── HOW I WORK ───────────────────────────────────────── I do not disappear mid-project. I raise blockers early instead of going quiet, and you get accomfortable ones. Every delivery includes full source code ownership, complete documentation,and architecture clean enough to hand to any future engineer without confusion. Small WordPress fix or large HealthTech platform, the standard is the same. If I say I will deliver it, I deliver it. ───────────────────────────────────────── WHO I WORK WITH ───────────────────────────────────────── Healthcare platforms that cannot afford compliance failures. SaaS founders who need it built dding AI, RAG or agents to their product. Agencies managing complex deployments or needing real engineering depth. Developers with large backlogs who need a reliable build partner. ───────────────────────────────────────── ETHICAL BOUNDARIES ───────────────────────────────────────── I do not accept projects involving interest-based finance (Riba), conventional insurance, gambling, adult content, or any Haram activity.