I'm a Full-Stack Engineer & Tech Lead with 8+ years of experience delivering cutting-edge Web & Mobile Applications. I specialize in crafting high-performance, secure, and scalable digital products - from MVPs to enterprise-grade systems - using modern technologies and best practices in design, development, and DevOps. I lead Web & Mobile Applications RockStar, an award-winning Upwork team recognized for delivering 5⭐ projects with a 100% Job Success Score 🚀 Our Agency Since 2017, our dedicated team of 50+ full-stack engineers, designers, and QA experts has been creating world-class digital experiences that help businesses scale, innovate, and succeed globally. ✔️ 500+ projects successfully delivered ✔️ 15,000+ hours billed on Upwork ✔️ Recognized by Upwork, Clutch, and Payoneer ✔️ Featured in Forbes for excellence in innovation and quality Our Expertise 🌐 Web & Full-Stack Development • React.js, Vue.js, Next.js, Nuxt.js • Node.js, Django, Flask, Express.js, Nest.js • RESTful APIs, GraphQL, and WebSockets • Cloud Infrastructure (AWS, GCP, Azure) 📱 Mobile Development • React Native, Flutter, Progressive Web Apps (PWAs) • Native integrations & cross-platform optimization • End-to-end delivery from prototype to App Store / Google Play 🎨 UI/UX & Product Design • Figma, Sketch, Adobe Creative Suite, Zeplin • Human-centered design & data-driven interfaces • Seamless collaboration between design & dev teams 🧠 AI, Web3 & Emerging Tech • OpenAI / ChatGPT Integrations • Blockchain, Smart Contracts, NFT Platforms • Predictive Analytics & Data-driven Applications 🧩 Quality Assurance & DevOps • Continuous Integration / Continuous Deployment (CI/CD) • Docker, Kubernetes, Ansible, automated testing pipelines • Security hardening & performance optimization Technology Stack & Tools 🖥 Front-End: JavaScript, TypeScript, React.js, React Native, Vue.js, Next.js, Nuxt.js ⌨️ Back-End: Python (Django, Flask, Sanic), Node.js (Express, Nest, Koa) ⚙️ DevOps: AWS, GCP, Azure, Docker, Kubernetes, CI/CD, Ansible 💿 Databases: PostgreSQL, MySQL, MongoDB, DynamoDB, Firebase 🎨 UI/UX Tools: Figma, Sketch, Adobe XD, Photoshop, Zeplin Industries We Serve 🎓 EdTech - LMS platforms & learning analytics 👩⚕️ Healthcare - telemedicine, dashboards, EMR/EHR systems 📊 Fintech - banking apps, payments, financial analytics 📈 Web3 & Blockchain - crypto platforms, NFT marketplaces 📒 SaaS & B2B - productivity, automation & CRM tools 🔐 Real Estate - property management & booking systems 🧠 AI Solutions - chatbots, predictive analytics, recommendation engines 💳 E-commerce - marketplaces, custom integrations, payment systems 🏦 ERP/CRM - enterprise process automation Why Clients Choose Us ✅ Tailored Approach: Every solution is customized for your goals and budget ✅ Agile Workflow: Transparent milestones, regular updates, fast delivery ✅ High Quality: Full QA coverage & performance optimization ✅ Expert Team: Cross-functional experts across web, mobile, and design ✅ Proven Track Record: 100% success rate on Upwork, repeat clients worldwide What Makes RockStar Stand Out ✔️ 8+ years of excellence in Web & Mobile development ✔️ Multi-award winning team featured in Forbes & Clutch ✔️ Over 500 projects completed across 25+ industries ✔️ 100% client satisfaction and long-term partnerships Proven Results 🚀 Scalable SaaS products reduced costs by 35% 📱 App redesigns improved retention by 50% 💻 Web app optimizations cut load times by 70% 🛒 E-commerce upgrades increased conversions by 60% Updated 11/25/2025

If you’re here, you’re probably looking for someone who can build a reliable mobile app, improve an existing one, or take an idea and turn it into a scalable SaaS web app or Admin panel sing React.jsNext.js , Node,js, Python (Django, Flask), Fast API. That’s exactly what I do. I’m a Full Stack Mobile & Web App Developer with 15+ years of experience in Mobile App Development, and for the last several years I have been working Flutter-first building high-performance iOS and Android apps backed by solid MERN Stack, Python systems. 📱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 𝗮𝗿𝗲 𝗺𝘆 𝗰𝗼𝗿𝗲 𝘀𝘁𝗿𝗲𝗻𝗴𝘁𝗵 Most of my work revolves around Flutter, React Native, Kotlin, Swift Mobile App Development creating cross-platform, hybrid mobile apps that feel fast, smooth, and native on both Android and iOS. 𝗜 𝗵𝗲𝗹𝗽 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘄𝗶𝘁𝗵: 1-Flutter & Flutter Stack development 2-Android App & iOS App development 3-Hybrid App Development 4-AI Mobile App Development 5-Mobile Wallets & payment-enabled apps 6-Mobile App Localization 7-Mobile App Improvement & performance optimization 8-Mobile App Strategy & development consultation Whether you’re launching a new app or fixing an existing one, I focus on clean architecture, smooth UI, and long-term scalability. 🌐 𝗪𝗵𝗲𝗻 𝗺𝗼𝗯𝗶𝗹𝗲 𝗻𝗲𝗲𝗱𝘀 𝗮 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 (𝗼𝗿 𝗮 𝗳𝘂𝗹𝗹 𝗦𝗮𝗮𝗦) Most apps don’t live on the phone alone, they need admin panels, dashboards, APIs, and web platforms. That’s where my MERN Stack, Python, Fast API experience comes in. 𝗜 𝗿𝗲𝗴𝘂𝗹𝗮𝗿𝗹𝘆 𝗯𝘂𝗶𝗹𝗱: 1-MERN Stack admin panels 2-MERN Stack SaaS products 3-Python, FastAPI SaaS products 4-SaaS web applications 5-Secure REST APIs & authentication 6-Subscription systems and Stripe integrations This means you don’t need to juggle multiple freelancers ;mobile app, backend, and web dashboard are all covered. 🤝𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 (𝗮𝗻𝗱 𝘄𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝘀𝘁𝗶𝗰𝗸 𝗮𝗿𝗼𝘂𝗻𝗱) 1-I don’t jump straight into coding. I first understand: 2-what you’re building, 3-who it’s for, 4-and how it needs to scale. 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝘂𝘀𝘂𝗮𝗹𝗹𝘆 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲 𝗯𝗲𝗰𝗮𝘂𝘀𝗲 𝗜 𝗯𝗿𝗶𝗻𝗴: ✔ Clear communication ✔ Strong mobile app architecture ✔ Real-world product experience ✔ Honest technical guidance (not over-engineering) I treat your project like a product, not just a task. 𝗟𝗲𝘁’𝘀 𝘁𝗮𝗹𝗸 𝗮𝗯𝗼𝘂𝘁 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 If you’re looking for a Flutter/React Native developer, mobile app developer, or full stack MERN, Python, FastAPI developer who can help you build, improve, or scale your app , I will be happy to discuss your idea.

I help startups and businesses build scalable SaaS platforms, custom web applications, AI-powered automation systems, and backend infrastructure. My expertise spans the complete product lifecycle—from architecture and database design to frontend development, backend systems, third-party integrations, and deployment. Over the years, I have worked on multi-tenant SaaS platforms, AI automation solutions, WhatsApp integrations, CRM systems, admin dashboards, workflow automation tools, marketplaces, and custom business applications. Core Expertise: • Full Stack Development (React, Next.js, NestJS, Node.js) • SaaS Product Development • Backend Architecture & APIs • AI Automation & AI Agents • Workflow Automation • WhatsApp Business Integrations • Database Design (MongoDB, PostgreSQL) • Cloud Deployment & DevOps • Blockchain & Web3 Applications I focus on building reliable, production-ready systems that solve real business problems and scale with growth.

🔧 I Build Scalable Web Apps, Intelligent Systems & Secure Blockchain Solutions — End to End. With 8+ years of experience, I help startups and enterprises turn ideas into production-ready tech. Clients hire me because I: ✅ Deliver fast without cutting corners (check my 5/5 Upwork streak) ✅ Explain tech in plain English—no jargon, just solutions ✅ Fix hidden problems (like that smart contract bug 3 other devs missed) 🛠 What I Bring to Your Project 1. Full-Stack Web Development Frontend: React, Next.js, Flutter (PWA/mobile-friendly) Backend: Node.js, Django, Microservices, REST/GraphQL APIs DB/DevOps: MongoDB, PostgreSQL, AWS, Docker, CI/CD 2. Blockchain (Bonus) Smart Contracts: Ethereum/Solana (Solidity, Rust) Web3 Apps: DeFi, NFTs, DAOs + MERN stack integration Private Chains: Hyperledger Fabric, IPFS 3. AI/ML (When You Actually Need It) Computer Vision: OpenCV, YOLO, ResNet (e.g. inventory tracking) LLMs: ChatGPT plugins, RAG pipelines, custom GPT wrappers MLOps: SageMaker, Azure ML for scalable model deployment 💬 Why Clients Keep Coming Back ✅ 100% on-time delivery on all Upwork projects (all 5-star rated) ✅ “Clean code first” mindset—your team can actually maintain my work ✅ AI/Blockchain pragmatism: I’ll tell you when it’s overkill 🚀 Recent Projects ✅ Blockchain Supply Chain Tracker: Hyperledger + React ✅ AI Document Reviewer: Node.js API + LLM for legal docs ✅ SaaS Platform at Scale: 50K users using AWS Lambda

About Me I have 10+ years of experience in Project Management of Mobile App Development, specializing in Android, iOS, & Cross-Platform App Development using Java, Kotlin, Swift, Objective C, React Native Mobile, Redux Flutter, Firebase, Mongo Db, User Authentication, EHR, FHIR, HL7, HIPAA compliance, Typescripts, and AI-driven applications. My expertise spans iOS & Android development, AI-powered solutions, seamless authentication systems, and full-stack capabilities, ensuring modern, high-performance apps for businesses of all sizes. Our Agency Since July 2017, my husband, our talented 55+ team members, and I have been delivering world-class digital solutions. - 150+ apps successfully delivered across multiple platforms in the last year - $4M+ turnover on Upwork - 500+ successful projects, 15,000+ hours worked - Close to a 100% success rate - Worked with 7, 8, and 9-figure businesses Our Expertise Mobile App Development • Android, iOS, & Cross-Platform Apps (Java, Kotlin, Swift, Objective C, React Native Mobile, Flutter) Web & Full Stack Development • Front-End: React.js, Angular.js, Next.js, WebRTC • Back-End: Node.js, Firebase, MongoDB, PostgreSQL • Cloud Deployment & API Integrations E-commerce & CMS Development • Shopify Developer & Customization • WordPress Developer & WooCommerce Solutions UI/UX Design & Branding • Adobe XD, Figma, Photoshop, Sketch Digital Growth & Security • SEO & Digital Marketing Optimization • Data Security & Intellectual Property Protection Intellectual Property Services • Trademark & Copyright Assistance Why Choose SolidAppMaker? - Tailored Approach: Every project is customized to fit your needs and budget. - Agile Workflow: Regular updates, milestones, and transparent communication. - High-Quality Development: Rigorous testing & performance optimization. - Competitive Pricing: Top-tier services at fair and transparent pricing. - Proven Track Record: Experience with MVPs, SaaS platforms, AI-driven apps, and enterprise solutions. Why SolidAppMaker Stands Out - 8+ years of expertise in UI/UX, mobile apps, SaaS & web development - 510+ projects successfully completed for startups & enterprises - 10+ awards & recognitions, featured on Upwork & top design platforms - 20+ countries served, delivering top-tier prototyping & development solutions Industries We Cover Healthcare, Transport, Retail, Asset Management, Real Estate, Dating, Nature/Wildlife, Rental, Food Delivery, Fintech / Finance and Banking, Cryptocurrency, Entertainment, Hospitality, Logistics, Manufacturing, Media and Publishing, Non-Profit, Sports and Fitness, Travel and Tourism, Utilities, Wellness, Medical Dashboard, Marketplace, Advertising, Automotive, Business Innovations, Ecology, Human Resources, LegalTech, Lifestyle, Fashion, Marketing, Navigation, Education, E-learning. Highlighted Skills Project Planning, MVC Architecture and RESTful APIs, Front-end Technologies (React.js, HTML5, CSS3, JavaScript), Responsive and Mobile-first Design, Database Design and Implementation (MongoDB, Firebase), User Authentication, Integration of Third-party APIs, Deployment to Cloud Platforms (AWS), Test-driven Development, Agile Methodologies (Scrum, Kanban), Security Technologies, QR Code Scanner, GPS and Mapping, Blockchain and NFT, ChatGPT and Artificial Intelligence. React Native Mobile Developer 10+ years of experience As a Mobile App Developer and Full Stack Developer with deep expertise in SaaS Mobile App, React Native Mobile App I bring over a decade of experience in building high-performance cross-platform mobile application. As a talented React Native Mobile Developer with good knowledge of cross-platform development, I specialize in crafting high-performance mobile apps for both iOS and Android platforms. I made more than 400 apps using React Native Mobile. Reactnative Mobile is my main tech stack, making top-performing apps using React Native Mobile. IOSDeveloper AndroidDevelop As a mobile app developer and full stack developer, I specialize in building robust cross-platform solutions using Flutter, React Native Mobile, and Expo for rapid development. My projects often leverage Firebase for secure real-time data storage and user authentication, and I have hands-on experience integrating WebRTC for live video and audio communication inside mobile apps. On the backend, I frequently use Laravel to build scalable APIs and admin panels that perfectly support mobileapp solutions. ReactNative Next Steps – Let’s Build Something Amazing! 📅 Would you be available for a 30-60 minute free consultation? During this meeting, we will: - Go over your project goals, technical needs, and budget. - Provide a project plan with a timeline and cost estimate. - Discuss the best development approach to fit your vision. - Send me a message, and I’ll share the Upwork scheduler link so we can set up a time that works best for you. Looking forward to collaborating and creating something extraordinary! Best regards, Daisy VC

✨ Full Stack AI Developer | Claude & AI Automation Expert | Certified in AI ✨ Hi, I'm Hamad, a Full Stack AI Developer with 3+ years of hands-on experience building AI-powered platforms, business automation systems, and scalable web applications for startups and growing businesses. I help companies integrate AI into their operations — from intelligent automation and workflow systems to production-ready AI SaaS platforms. I don't just explain AI tools — I build real systems that streamline your business. I am IBM-certified in AI Development and Meta-certified in Frontend Development, combining strong engineering fundamentals with production-ready AI architectures. 🔹 What I Help You Build ✅ AI-Powered Applications & Automation Claude & OpenAI integrations for business workflows AI agents that automate operations, sales, and internal processes RAG systems with knowledge injection and semantic search Document processing, content generation, and AI pipelines Production-ready AI implementations (not demos) ✅ Full Stack Web Applications React & Next.js applications optimized for performance and SEO Secure REST & GraphQL APIs (Node.js, Express, Python/FastAPI) PostgreSQL, MongoDB, Supabase database design Authentication, authorization, and role-based systems Cloud deployment on AWS, Vercel & Firebase ✅ SaaS Platforms & Dashboards Multi-tenant SaaS architecture with subscription management Admin dashboards with analytics and reporting Stripe billing integration User onboarding flows and customer portals 🔹 Why Clients Choose Me AI-First Mindset: I build with Claude daily — it's my primary development tool End-to-End Ownership: frontend, backend, AI pipelines — handled seamlessly Scalable Architecture: clean, maintainable, production-ready code Certified Expertise: IBM AI Developer & Meta Frontend certifications Clear Communication: structured updates, no guesswork Ship Fast: I use AI tools to deliver faster than traditional development 🔹 Tech Stack Frontend: React, Next.js, TypeScript, TailwindCSS, shadcn, Framer Motion Backend: Node.js, Express, Python, FastAPI, PostgreSQL, MongoDB, Supabase AI: Claude API, OpenAI, LangChain, RAG, Vector DBs, AI Agents Automation: n8n, Make, Zapier, custom workflow pipelines Cloud: AWS, Vercel, Firebase, CI/CD, GitHub Actions 📌 Let's Work Together If you're looking to integrate AI into your business, automate workflows, or build an AI-powered product — I can help turn your idea into a reliable, production-ready system. Message me to discuss your project.

High-performance backends. Decision engines. AI factories. Computer vision. Real-time systems. From UI/UX-heavy MVPs to full-stack platforms built for the traffic that comes after launch day, not just during it. Rust, C++, and 5+ languages. 100,000+ concurrent WebSocket connections -- in production. A 12-week roadmap shipped in 4. 30 senior engineers. Dedicated project teams, not rotating freelancers. Every engagement starts with a paid Discovery phase -- we scope the architecture before we write a line of code. Not a fit: no-code workflows, or projects solvable with Zapier. WHAT I BUILD - High-Performance Backends: Production backends with actix-web, axum, and Tokio -- millions of requests/day, zero GC pauses. REST, GraphQL, WebSocket, and gRPC services for throughput and latency-sensitive workloads. - Full-Stack Platforms: React, Next.js, TypeScript frontends with production backends -- SaaS, MVPs, and custom web applications from architecture to deployment. Designed for 1K to 100K concurrent users without a rewrite. - Autonomous AI Agents: Agentic pipelines with OpenAI and Anthropic Claude -- lead qualification, data analysis, customer support running 24/7. Multi-step reasoning, error recovery, state persistence. 11+ projects for one client. - Computer Vision: Object detection, tracking, real-time inference, OCR, document processing -- CUDA-optimized, deployed as production APIs or edge devices. Not Jupyter notebooks. - Real-Time 3D & Visualization: WebGL and WebGPU rendering -- product configurators, data dashboards, architectural viewers at 60fps in-browser on mid-range hardware. - Data Pipelines: Rust-native processing with Polars and DataFusion -- replacing Python/JavaScript bottlenecks. Kafka streaming, PostgreSQL persistence. - Cloud & Infrastructure: AWS, GCP, Azure with Terraform and Kubernetes -- auto-scaling, zero-downtime deployments, infrastructure-as-code. RECENT OUTCOMES - Crypto trading platform dropping connections above 8,000 users. Rebuilt proxy in Rust, Tokio, Kubernetes -- 100,000 connections at under 10ms, zero crashes. - GovTech blockchain payment router on Go. Rebuilt IAVL Tree in Rust -- 20–30% faster, Clutch-reviewed (Alex Kampa, AZKR Research). - Recruitment team spending 4 hours daily on manual data entry. Built automated extraction and processing pipeline -- 95% reduction. - Data analytics platform hitting memory limits in JavaScript. Replaced core with Rust and Polars -- 5x faster processing, 70% lower memory. - Blockchain gaming 3D pipeline loading in 8+ seconds. Rebuilt within 4GB RAM budget -- 45% faster, Clutch-reviewed (Ruslan Varets). TECHNOLOGIES - Systems & Backend: Rust, C++, Python, TypeScript, actix-web, axum, Tokio, Node.js, WebAssembly - Frontend: React, Next.js, TypeScript, Tauri, Dioxus - AI & Agents: OpenAI, Anthropic Claude, Hugging Face, LangChain, RelevanceAI - Graphics: WebGL, WebGPU, OpenGL, Vulkan, three.js, GLSL/WGSL shaders, bevy - Vision: OpenCV, CUDA, PyTorch, TensorFlow, Keras, Mediapipe - Data: Polars, DataFusion, PostgreSQL, Kafka, Snowflake, Apache Arrow - Cloud & DevOps: AWS, GCP, Azure, Terraform, Kubernetes, Docker, GitHub Actions - Networking: WebRTC, LibP2P, QUIC, WebSocket, gRPC Delivery: Discovery → Architecture Review → Platform Build → Performance Testing → Production Deploy → Runbook Handoff. Fixed scope per phase. This profile is for engineering teams building production platforms under real load. Send your project brief -- I'll reply within 48 hours to assess fit.

UPDATED DESCRIPTION 💻 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | 8,000+ ⏱️ 𝐇𝐨𝐮𝐫𝐬 | 100% ✅ 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 | 5⭐ 𝐑𝐞𝐯𝐢𝐞𝐰𝐬 Looking for someone who can both 𝐛𝐮𝐢𝐥𝐝 𝐭𝐡𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 and 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐞 𝐭𝐡𝐞 𝐨𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐛𝐞𝐡𝐢𝐧𝐝 𝐢𝐭 — without switching between two different contractors? You are in the right place. I have helped clients across 10+ countries, delivered 1,000+ automation workflows, and built 15+ web apps, SaaS platforms, and MVPs that are live and running today. My clients in real estate, fintech, healthcare, construction, and SaaS have seen up to 3x productivity gains, not from hiring more people, but from building smarter systems. 💼 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 🔹 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Whether you need a SaaS platform from scratch, an internal dashboard, or a production-ready web app — I build it cleanly and ship it fast. ✔ React, Next.js, TypeScript, Tailwind CSS — pixel-accurate frontends that perform ✔ Node.js, Express.js, NestJS — scalable backend APIs built with clean architecture ✔ PostgreSQL, MongoDB, Supabase — data models that hold up under real load ✔ REST APIs, GraphQL, webhooks — integrations that actually stay connected ✔ AWS, Vercel, Docker, CI/CD — deployed properly from day one 🤖 𝐀𝐈 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬 A sales rep who never sleeps, never has a bad day, and always follows the script. That is what a properly built voice agent delivers. ✔ Inbound and outbound call agents — Vapi and Retell AI ✔ ElevenLabs voice with CRM routing and live booking flows ✔ Twilio and Deepgram conversational systems built to sound human ⚡ 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ✔ n8n, Make com, and Zapier — multi-step workflows built for real production conditions ✔ Lead capture, SMS and email sequences, CRM pipeline updates on autopilot ✔ Webhook and API integrations — if two platforms exist, I can connect them ✔ Airtable automation — custom scripts, linked records, and dashboards that turn your base into a business engine 📈 𝐂𝐑𝐌 & 𝐒𝐚𝐥𝐞𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 ✔ GoHighLevel — pipelines, funnels, calendars, snapshot builds, and SaaS configurations ✔ HubSpot, Pipedrive, ActiveCampaign, Freshsales, Salesforce, and Zoho — workflow automation and pipeline management ✔ Lead nurturing, appointment booking, and re-engagement flows built to convert 🧠 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ✔ Multi-agent workflows using OpenAI, Claude, and LangChain ✔ RAG systems with Pinecone knowledge bases — agents that know your business ✔ AI chatbots for lead qualification, support, and appointment booking ✔ Autonomous routing systems that handle complexity without human input 🎯 𝐘𝐨𝐮 𝐀𝐫𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐑𝐢𝐠𝐡𝐭 𝐏𝐥𝐚𝐜𝐞 𝐈𝐟 𝐘𝐨𝐮 𝐀𝐫𝐞: 🏢 An agency that needs both the product built and the operations automated 🏠 A real estate, healthcare, ecommerce, or finance business ready to scale 🚀 A SaaS founder who needs a full platform built and the workflows behind it automated 🔧 A service business where your team is still doing manually what a system could handle 💡 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐨𝐦𝐞 𝐁𝐚𝐜𝐤 I do not build something and disappear. Whether it is a React dashboard or an n8n workflow, I build it to hold up under real conditions, document everything so your team can operate it independently, and stay available when the business grows and needs something new. No broken handoffs. No mystery logic. No vanishing acts. Clean code. Clean automations. Both still running six months after delivery.

As a Senior Full-Stack and AI Engineer with 14+ years of experience, I specialize in designing and building scalable web applications, cloud platforms, AI-powered automation systems, and high-performance APIs. I have extensive experience developing enterprise SaaS platforms, CRM/ERP systems, fintech applications, and AI-driven automation solutions using modern technologies such as Python, Node.js, Golang, Java, .NET, Ruby on Rails, React.js, and Next.js. I also work extensively with AI and automation frameworks, building intelligent workflows and LLM-powered applications using tools like LangChain, LangGraph, HuggingFace models, and n8n automation pipelines. Core Technical Expertise AI & Automation LLM integrations (OpenAI, Claude, HuggingFace) LangChain & LangGraph AI workflows Automation pipelines using n8n AI-powered SaaS platforms and content automation systems AI chatbots and intelligent agents Backend Development Python (FastAPI, Flask, Django) Node.js (REST APIs & microservices) Golang microservices Java (Spring Boot) .NET / ASP.NET Core Ruby on Rails Frontend Development React.js and Next.js TypeScript and modern JavaScript frameworks Angular Responsive UI development using Tailwind and Bootstrap Mobile Development React Native cross-platform mobile applications Blockchain Development Solidity smart contracts Ethereum and Web3.js integrations NFT and decentralized applications Cloud & DevOps AWS, Azure, and Google Cloud Docker, CI/CD pipelines Scalable microservices architecture Why Clients Hire Me ✔ 14+ years of professional development experience ✔ Expertise across AI, cloud, full-stack, and blockchain technologies ✔ Proven track record building enterprise SaaS platforms and scalable systems ✔ Strong focus on clean architecture, performance, and maintainable code ✔ Clear communication and reliable project delivery If you are looking for a senior engineer who can build scalable applications, AI-powered solutions, or modern SaaS platforms, I would be happy to discuss your project. Let's connect and bring your idea to life. Thanks, Hitesh Kanwar

Is your AI system slow, unreliable, or breaking in production? You've likely built something that works in demos but fails at scale. I've spent 10+ years solving exactly this, first at Microsoft, then at Cambridge, and now for clients who need AI systems that actually work. I am an AI Engineer specializing in LLM integration, RAG pipelines, and multi-agent systems. Demonstrated expertise through key projects like developing a dynamic AI agent using LangChain for LLMs, building an AI platform querying multiple engines, and formal verification systems for AI reasoning. Proficient in Python, NLP, Machine Learning, and ML Security, ML Models, applying these skills to create robust, scalable AI solutions and clean backends for production-grade deployments. I am a PhD in Computer Science from the University of Cambridge and a former Microsoft engineer with 10+ years of experience building high-performance, secure, and reliable systems. 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗼 𝗯𝗲𝘀𝘁: • High-performance C++ systems (compilers, runtime) • AI systems (LLMs, RAG, agentic workflows) designed for real-world deployment • ML performance optimization (Triton, CUDA, PyTorch, TVM) 3x–5x speedups • Formal verification & program analysis (model checking, SMT) • Secure and trustworthy AI systems (LLM reasoning, validation, safety) • Blockchain & smart contract analysis (Ethereum, storage-level reasoning) 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗰𝗵𝗼𝗼𝘀𝗲 𝗺𝗲: ① Cambridge PhD (Computer Science) + 10 years at Microsoft (security & systems) ② 5 US patents in security and cryptography ③ 100% Job Success Score on Upwork, every project delivered ④ Production-grade AI systems, not just prototypes that demo well ⑤ Deep expertise across correctness, performance, and system design 𝗥𝗲𝗰𝗲𝗻𝘁 𝗰𝗹𝗶𝗲𝗻𝘁 𝗿𝗲𝘀𝘂𝗹𝘁𝘀: • Built an LLM agent over SQL with millions of records, delivered • Designed a formal verification pipeline for LLM reasoning using SMT solving, shipped in under a week • Optimized ML inference pipelines achieving 3x–5x throughput improvements • Built a RAG-based blockchain analysis system for smart contract vulnerability detection 𝗜𝗱𝗲𝗮𝗹 𝗰𝗹𝗶𝗲𝗻𝘁𝘀: • AI startups hitting scaling or reliability limits in production • Teams struggling with LLM output correctness or consistency • Web3 companies needing secure, formally verifiable systems • Engineers building serious backend or AI infrastructure If your system isn't performing the way you need it to, message me and let's fix it.