🚀 Expert Full Stack Web & Mobile App Developer | Next.js, React Native, & AI Integration Hi there! I’m Moiz Khan, an Expert Full Stack Web App Developer and Mobile App Expert with over 3 years of experience crafting robust, scalable, and intelligent applications. I hold a Bachelor's in Computer Science from COMSATS University Islamabad. I specialize in the modern JavaScript ecosystem, building high-performance Web Applications using Next.js/React and native-quality Mobile Apps with React Native. I deliver end-to-end, intelligent solutions—from cutting-edge frontends to secure, scalable backends—often powered by custom AI/LLM integration. 💡 My Core Expertise & Results: I’ve successfully delivered projects across diverse industries, including fitness platforms, real-time chat apps, and advanced AI-integrated systems (like the AI Health Scan App and AI-Powered Gym App). Whether you're looking to launch a sleek mobile app, scale a web platform, or add smart AI functionality—I ensure your product is built with clean, scalable code and a keen eye for user experience. 🛠️ Key Technologies & Skills: Frontend Web App Development: React.js, Next.js (Web Expert), Vue.js, TailwindCSS, Bootstrap, Material UI Focus: High-performance UIs and intuitive design systems for modern web applications. Mobile App Development: React Native (Mobile App Expert), Android (Java) Focus: Smooth, cross-platform mobile apps for both iOS and Android. Backend for Web & Mobile: Node.js, Django, Loopback 4 Focus: Secure, scalable backend APIs with REST and GraphQL integrations. AI Integration & Prompt Engineering: OpenAI API, Custom LLM Integration Focus: Building intelligent app features like personalized recommendations and chat automation. Databases & Cloud: PostgreSQL, MySQL, AWS, Azure DevOps Focus: Reliable cloud hosting, database design, and deployment. ✅ Why Work with Me? You'll work with a developer who is detail-oriented, design-conscious, and committed to building long-term partnerships. I focus on performance, user experience, and long-term maintainability—not just quick fixes. What You Can Expect: Full-stack web and mobile applications built for scalability. Secure GraphQL/REST APIs. AI-enhanced features that drive user engagement. Clean, maintainable, and well-documented code. Clear communication and timely project delivery. 🔑 Let’s Build Something Amazing Together! Whether you need a robust MVP or optimization for an existing product, I'm ready to turn your vision into reality. 📬 Let’s connect—your next successful product starts here!

22+ products built end-to-end. 6 running at enterprise scale. Clients include Odiggo (YC S21), Time Health (piloted by the largest healthcare network in the US) and Cravta (#1 women-led startup in MENA). I specialise in building full-stack applications with AI and Web3 at the core; using Python, Next.js, FastAPI, Node.js, React Native, MERN, and AWS. From RAG pipelines and AI voice agents to blockchain escrow systems, I build the full product, not just the feature layer. 𝐓𝐡𝐞 𝐦𝐨𝐬𝐭 𝐫𝐞𝐜𝐞𝐧𝐭: an AI voice receptionist built on Retell with Sonic 3 TTS, running sub-500ms latency over WebRTC, powered by LLM agents, Twilio, and WhatsApp; recovered $81K in annual revenue for a dental practice in 30 days. Before that, an on-prem Whisper + RAG system with Python and machine learning that cut clinical workload by 60% for 𝐓𝐢𝐦𝐞 𝐇𝐞𝐚𝐥𝐭𝐡. Before that, a computer vision pipeline for 𝐀𝐠𝐫𝐢𝐓𝐞𝐜𝐡 that closed a $2.1M seed round as the lead technical differentiator. 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝: ▸ Full-stack applications: Next.js, FastAPI, Node.js, React Native, GoLang, PostgreSQL, MongoDB, Redis. End-to-end product builds from architecture to deployment. ▸ AI voice & LLM agents: AI receptionists, AI tutors, AI companions, clinical assistants (Retell, LiveKit, Sonic 3, Twilio, WhatsApp, Whisper, LangChain, EMR/PMS integrations, sub-500ms WebRTC latency) ▸ RAG pipelines: semantic search + BM25 hybrid retrieval, multilingual & multimodal document AI, real-time compliance systems (Qdrant, Pinecone, ChromaDB) ▸ LLM fine-tuning & prompt engineering: LoRA/PEFT on GPT, LLaMA, Mistral, Gemini for domain-specific use cases, not just API wrappers ▸ Computer vision: face recognition, liveness & deepfake detection, biometric KYC (1:1, 1:N), medical imaging, satellite imagery, multilingual OCR (YOLO, Transformers, PyTorch) ▸ Classical ML: XGBoost, time series forecasting, yield prediction on IoT and sensor data ▸ Web3 & blockchain: smart contracts, NFT minting, escrow systems, Polygon chain, wallet integrations, crowdfunding platforms ▸ Automation & workflows: N8N, Zapier, Claude Code, custom pipeline orchestration 𝐖𝐡𝐞𝐫𝐞 𝐈 𝐚𝐝𝐝 𝐭𝐡𝐞 𝐦𝐨𝐬𝐭 𝐯𝐚𝐥𝐮𝐞: ▸ You have an idea or a vision and need someone who can architect it, build it, and ship it, not just write code to a spec. ▸ You have a working MVP and need to take it to an enterprise-grade, scalable product without rebuilding from scratch. I have done both, multiple times. I led Cravta, Khurli, Sawie, AgromAi, and Odiggo (YC S21) from ideation or early stage through to enterprise-grade products. I work the way a technical co-founder would: I'll flag problems before they get expensive, communicate without being chased, and build systems I'd be comfortable owning long-term. 𝐑𝐞𝐜𝐞𝐧𝐭 𝐰𝐨𝐫𝐤: ▸Khurli: AI voice dental receptionist built on Retell with Sonic 3 TTS, sub-500ms end-to-end voice latency over WebRTC, Twilio & WhatsApp integration, and Dentrix EMR sync. 41 new patients captured in 30 days. $81K annual revenue recovered. 6.1x ROI in month one. ▸Time DRH: On-prem Whisper + RAG agents for clinical workflows. EMR-optimized transcriptions with AI-assisted diagnosis and prognosis. 60% reduction in manual workload. Piloted by Time Health across the US. ▸Cravta & Huda: Multilingual computer vision EdTech platform with gamified learning, in-product marketplace, multi-tenant architecture, and white-label support. Includes Huda, a real-time conversational AI tutor built on LiveKit. Led from ideation to enterprise. 1,000+ users. 40% performance gain. 30% cloud cost reduction. Ranked #1 Women-Led Startup in MENA. ▸Sawie: Computer vision + crop health classification for AgriTech. $2.1M seed round closed with this as the lead technical differentiator. ▸AgromAi: Soybean yield prediction in Brazil using XGBoost trained on IoT sensor data, weather, and soil inputs. Piloted by Bank of Brazil. ▸Vasael: Real estate & commodities crowdfunding platform processing $2M+ in annual transactions. Blockchain-powered escrow with NFT minting on Polygon, payment gateways, MFA, and biometric authentication. ▸Crypto Compliance RAG: Real-time multilingual, multimodal RAG system for GCC crypto compliance with live regulatory document ingestion. ▸Additional portfolio: Odiggo (YC S21), ColorsofRiyadh, RDP-KSA, Oliva-SA, in2o, and more. If any of this sounds like what you're trying to build, send me a message. I'd love to hear what you're working on and show you how I'd approach it.

🌟 𝐈𝐬 𝐲𝐨𝐮𝐫 𝐰𝐞𝐛 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐟𝐚𝐜𝐢𝐧𝐠 𝐬𝐥𝐨𝐰 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞, 𝐜𝐨𝐝𝐞 𝐢𝐬𝐬𝐮𝐞𝐬, 𝐨𝐫 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐥𝐢𝐦𝐢𝐭𝐚𝐭𝐢𝐨𝐧𝐬? 𝐋𝐞𝐭 𝐦𝐞 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝 𝐟𝐚𝐬𝐭, 𝐬𝐞𝐜𝐮𝐫𝐞, 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 — 𝐟𝐫𝐨𝐦 𝐩𝐨𝐰𝐞𝐫𝐟𝐮𝐥 𝐀𝐏𝐈𝐬 𝐭𝐨 𝐬𝐦𝐨𝐨𝐭𝐡 𝐔𝐈𝐬 𝐮𝐬𝐢𝐧𝐠 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐑𝐞𝐚𝐜𝐭, 𝐆𝐨𝐥𝐚𝐧𝐠, 𝐚𝐧𝐝 𝐜𝐥𝐨𝐮𝐝 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐥𝐢𝐤𝐞 𝐀𝐖𝐒 🌟 I’m 𝐊𝐢𝐫𝐚𝐧, a 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 & 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 𝟕+ 𝐲𝐞𝐚𝐫𝐬 of experience building high-performance 𝐰𝐞𝐛 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐜𝐮𝐬𝐭𝐨𝐦 𝐀𝐏𝐈𝐬, 𝐜𝐥𝐨𝐮𝐝-𝐧𝐚𝐭𝐢𝐯𝐞 𝐚𝐩𝐩𝐬,and 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞𝐬. From intuitive frontends to powerful server-side systems, I handle the entire stack — so you can focus on growth. 🧰 𝐖𝐡𝐚𝐭 𝐈 𝐎𝐟𝐟𝐞𝐫: 🟢 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 ✔ React, Next.js, Vue, Angular ✔ Tailwind, Bootstrap, Material UI ✔ TypeScript, Redux, Zustand ✔ Next.js SSR optimization ✔ Server-side rendering for SEO ✔ Next.js performance tuning 🟢 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 & 𝐀𝐏𝐈𝐬 ✔ Node.js, Express.js, NestJS, Golang, Ruby on Rails ✔ PostgreSQL, MongoDB, MySQL, Firebase ✔ REST APIs, GraphQL, WebSockets ✔ JWT Auth, OAuth2, Role-Based Access ✔ Microservices, Monolith Refactoring 🟢 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐂𝐥𝐨𝐮𝐝 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 ✔ AWS (EC2, S3, Lambda, CloudWatch) ✔ Docker, Kubernetes, DigitalOcean, Vercel ✔ CI/CD: GitHub Actions, GitLab, Jenkins ✔ Load Balancing, Auto Scaling, Domain Setup 🟢 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 ✔ Flutter, Swift, Kotlin integration ✔ Real-time Database APIs (Firestore, Supabase) ✔ App Store-ready APIs and Authentication ✔ Firebase Cloud Messaging & Push Notifications 🟢 𝐄-𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐂𝐌𝐒 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 ✔ Shopify Theme Integration & Storefront APIs ✔ WordPress + WooCommerce Custom Plugins ✔ CMS: Webflow, Duda, Bubble ✔ Stripe, PayPal, Braintree API integrations 🟢 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 ✔Node.js, React.js, Vue.js, Angular, TypeScript, ✔Tailwind, Golang, Ruby on Rails, PostgreSQL, ✔MongoDB, MySQL, Firebase, AWS, Docker, ✔Vercel, Kubernetes, GitHub Actions, CI/CD, ✔Redis, GraphQL, REST APIs, Stripe, Twilio, Figma, WebSockets 💡 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? ✔ Full Stack Expertise — frontend, backend, cloud ✔ Strong communication & clear timelines ✔ Top Rated with 100% Job Success ✔ Detail-oriented & scalable architecture ✔ Clean, well-documented, testable code ✔ On-time delivery, reliable collaboration 🧩 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐓𝐲𝐩𝐞𝐬 𝐈 𝐖𝐨𝐫𝐤 𝐎𝐧: 🔸 SaaS platforms 🔸 Admin dashboards 🔸 Multi-user web apps 🔸 E-commerce integrations 🔸 CMS customizations 🔸 DevOps deployments 🔸 API integrations 🔸 MVP to Enterprise scaling 📬 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐁𝐮𝐢𝐥𝐝 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐏𝐨𝐰𝐞𝐫𝐟𝐮𝐥? If you need a reliable 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 who can ship fast, communicate clearly, and build systems that scale — let's connect! I’m always ready to jump into meaningful projects. ✅ 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: Next.js SSR Optimization, SaaS Microservices Architecture, Realtime Dashboard Developer, GraphQL Subscriptions, Node.js Performance Optimization, Serverless AWS Lambda, Headless CMS Integration, Shopify Storefront API, Next.js i18n Developer, Monolith to Microservices Migration, CI/CD Pipeline Optimization, Cloud-native API Development, MVP Prototyping for Startups, PostgreSQL Optimization, WebSocket Engineer, Dockerized Deployment

AI Engineer at a US-based software agency, building prompt-driven automation, LLM workflows, and data pipelines that actually run in production. Most AI projects stall because they're built as experiments. I focus on turning AI into reliable systems that integrate with real workflows, reduce manual work, and hold up at scale. What I do: I combine LLMs (Claude, GPT, Gemini), Python, and modern automation tools to build end-to-end solutions, from intelligent document processing to fully automated data pipelines. Recently, I've built ETL pipelines processing multi-million row datasets from Shopify and ShipHero into SQL Server, designed prompt-based extraction workflows for unstructured data, and developed a browser automation system that pulled structured analytics from a React/ECharts dashboard with no public API access. Where I add the most value: - AI & LLM Integration — Claude, OpenAI, and Gemini API work with structured outputs, prompt engineering for accuracy and consistency, RAG-style workflows, and AI agents - Prompt Engineering & Document Processing — designing and testing prompts for data extraction, classification, and summarization across PDFs, spreadsheets, and databases - Automation & Workflow Design — Makecom, n8n, Zapier, APScheduler, and custom Python automations with proper monitoring, error handling, and alerting - Data Pipelines & Backend — Python ETL pipelines, SQL Server, API integrations, AWS S3, and validation logic for high-volume data - Reporting & Analytics Support — preparing clean, validated datasets for Power BI dashboards and stakeholder reporting Background that informs the work: I'm a Computer Science graduate, recently completed Google's AI Professional Certificate (7 courses covering AI fundamentals, prompting, research, data analysis, content creation, and app building), and previously interned at SUPARCO building geospatial AI tools. I currently also work with AfterQuery designing ML benchmark evaluation pipelines. Beyond building, I've spent years explaining technical concepts to non-technical audiences, as Tech Content Lead for Microsoft Learn Student Ambassadors and Advisory Lead for ACM-W. So if your project involves training a team or documenting workflows so others can use them, that's something I genuinely enjoy. How I work: I think in systems, not one-off scripts. I design for reliability, write clear documentation as I go, communicate proactively, and take ownership of outcomes. I prefer longer engagements where the impact compounds over time, but I'm equally focused on smaller projects when they're a strong fit. If you're looking to: → Build prompt-engineered workflows that actually produce reliable outputs → Automate data extraction, processing, or reporting → Integrate Claude, GPT, or Gemini into your business operations → Train internal teams on practical AI use I'd love to talk.

Backend Developer with a strong focus on building MVPs and POCs in AI, healthcare, and cybersecurity domains. Experienced in Django, Python, RESTful APIs, PostgreSQL, and system integrations like LDAP/AD and VirtualBox. Delivered solutions for geospatial analysis, medical imaging, and secure infrastructure tools. Passionate about clean, scalable code and exploring bioinformatics applications. Open to new opportunities and collaborative challenges.

As a passionate data visualization expert, I bring a wealth of experience in harnessing the power of Tableau, Google Looker, and Python to transform complex data into actionable insights. My expertise is firmly rooted in data-driven decision-making, complemented by a collection of accomplished certifications and training. Additionally, I specialize in data scraping and developing Apps Script to automate data collection and processing, further enhancing the visualization process. Are you seeking to drive informed, impactful decisions but find yourself lacking the time or specialized skills to craft compelling visualizations? Allow me to assist you. I specialize in creating data visualizations that empower you to focus on the core of your decision-making process. By collaborating with me, you'll gain access to visually stunning, well-crafted data representations that transcend aesthetics to offer real strategic value. These visualizations are designed to facilitate rapid, insightful decisions, whether for your business, professional endeavours, or personal projects. Moreover, my proficiency in Python allows for advanced data manipulation, ensuring that your visualizations are based on the most accurate and relevant data. If this aligns with your needs, I encourage you to reach out. Share a brief overview of your work or project, and we can schedule a conversation to explore how I can best support your journey towards effective, data-informed decision-making. Let's harness the potential of data visualization together!

I deliver implementation-ready architecture and delivery plans for SaaS platforms in regulated industries. My most recent engagement produced a 100+ page technical blueprint for a German energy comparison platform covering multi-tenant architecture, RBAC, GDPR compliance, API contracts, database schemas, and a phased delivery roadmap. The client described the outcome as "very detailed and on point." My regulated industry experience spans energy, space and defence (Satellite Applications Catapult, Innovate UK), aviation (MyAirOps), healthcare, medical research, and fintech. What you get: Architecture and delivery plans: system designs, data models, API contracts, security frameworks, and phased roadmaps. Not theoretical frameworks. Specifications your developers can build from on day one. Rapid prototyping and validation: I use AI-augmented development daily through MVP Foundry, my own methodology for compressing MVP timelines. I can validate architectural decisions with working code, not just documents. 25 years across CTO, solutions architect, and delivery roles. BCS Certified in Enterprise & Solution Architecture. 100% Job Success. Expert-Vetted (top 1%). Typical engagements: - Fixed-price architecture and delivery plans (2-3 weeks, from $3,600) - MVP build using AI-augmented development (from $5,000) - Fractional technical advisor (ongoing, part-time) - Technology selection and vendor evaluation

I've shipped 𝟏𝟎𝟎+ 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 over 𝟖 𝐲𝐞𝐚𝐫𝐬, including 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 scaled to 𝟏𝟎𝟎𝐤+ 𝐦𝐨𝐧𝐭𝐡𝐥𝐲 𝐮𝐬𝐞𝐫𝐬, 𝐌𝐕𝐏𝐬 backed by 𝐆𝐨𝐨𝐠𝐥𝐞 & 𝐌𝐚𝐬𝐭𝐞𝐫𝐂𝐚𝐫𝐝 and 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐭𝐨𝐨𝐥𝐬 used by 𝟓𝟎𝟎,𝟎𝟎𝟎+ 𝐩𝐫𝐚𝐜𝐭𝐢𝐭𝐢𝐨𝐧𝐞𝐫𝐬. I work end-to-end: architecture, frontend, backend, integrations, and deployment. If your product needs to scale, perform, and ship, that's where I come in. "𝐃𝐫𝐨𝐩 𝐞𝐯𝐞𝐫𝐲𝐭𝐡𝐢𝐧𝐠 𝐚𝐧𝐝 𝐡𝐢𝐫𝐞 𝐭𝐡𝐢𝐬 𝐦𝐚𝐧. 𝐇𝐞 𝐭𝐮𝐫𝐧𝐞𝐝 𝐦𝐲 𝐦𝐚𝐫𝐤𝐞𝐭𝐩𝐥𝐚𝐜𝐞 𝐒𝐚𝐚𝐒 𝐚𝐫𝐨𝐮𝐧𝐝 𝐰𝐢𝐭𝐡𝐢𝐧 𝐚 𝐰𝐞𝐞𝐤. 𝐀 𝐭𝐫𝐮𝐞 𝐩𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥." "𝐇𝐞 𝐢𝐬 𝐦𝐲 𝐟𝐚𝐯𝐨𝐫𝐢𝐭𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐨𝐟 𝐚𝐥𝐥 𝐭𝐢𝐦𝐞 𝐨𝐮𝐭 𝐨𝐟 𝐝𝐨𝐳𝐞𝐧𝐬 𝐈'𝐯𝐞 𝐡𝐢𝐫𝐞𝐝 𝐨𝐯𝐞𝐫 𝟏𝟎+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤. 𝐇𝐢𝐠𝐡𝐥𝐲 𝐫𝐞𝐠𝐚𝐫𝐝𝐞𝐝 𝐩𝐫𝐨𝐟𝐞𝐬𝐬𝐢𝐨𝐧𝐚𝐥." 𝐖𝐡𝐚𝐭 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐬𝐡𝐢𝐩: ➜ 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 React, Next.js, Node.js, NestJS, Python, Django, TypeScript → 60+ apps launched, 10+ SaaS products scaled from 0 to 100k+ users a month ➜ 𝐒𝐚𝐚𝐒 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐌𝐮𝐥𝐭𝐢-𝐓𝐞𝐧𝐚𝐧𝐭 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 → role-based access, isolated environments, subscription billing, and scalable data models built for growth ➜ 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐑𝐀𝐆 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 OpenAI, Claude, LangChain, Pinecone, vector search → production-grade AI features, not demos ➜ 𝐏𝐢𝐱𝐞𝐥-𝐏𝐞𝐫𝐟𝐞𝐜𝐭 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Figma to code, responsive, WCAG-compliant → 95+ Lighthouse scores, sub-1-second load times, cross-browser verified ➜ 𝐆𝐞𝐨𝐬𝐩𝐚𝐭𝐢𝐚𝐥 𝐚𝐧𝐝 𝐃𝐚𝐭𝐚-𝐇𝐞𝐚𝐯𝐲 𝐃𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬 Mapbox, DeckGL, Google Maps → tested on 300k+ feature datasets with real-time interaction ➜ 𝐑𝐄𝐒𝐓𝐟𝐮𝐥 𝐚𝐧𝐝 𝐆𝐫𝐚𝐩𝐡𝐐𝐋 𝐀𝐏𝐈𝐬 → 150+ endpoints with caching, rate-limiting, and webhook support ➜ 𝐓𝐡𝐢𝐫𝐝-𝐏𝐚𝐫𝐭𝐲 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 → 50+ APIs including Stripe, Twilio, OpenAI, Google Calendar, Office 365, Shopify, Slack, DocuSign, SendGrid, and more ➜ 𝐌𝐕𝐏 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐲 → 20+ MVPs launched in 6-12 weeks from scratch to production 𝐂𝐚𝐬𝐞 𝐒𝐭𝐮𝐝𝐢𝐞𝐬: 𝟏. 𝐆𝐨𝐓𝐚𝐜𝐤𝐥𝐞 (𝐆𝐨𝐨𝐠𝐥𝐞-𝐁𝐚𝐜𝐤𝐞𝐝 𝐒𝐚𝐚𝐒 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦): Built a platform connecting business owners with expert advisors, serving 100k+ users a month. ⛁ 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, 𝐆𝐫𝐚𝐩𝐡𝐐𝐋, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐀𝐖𝐒 𝐋𝐚𝐦𝐛𝐝𝐚, 𝐀𝐦𝐚𝐳𝐨𝐧 𝐂𝐨𝐠𝐧𝐢𝐭𝐨 Integrated Stripe, Google Calendar, Office 365, and Squarespace for real-time scheduling and payments. AI-assisted advisor matching improved match relevance by 42%. Booking friction dropped by 40% after redesigning the scheduling workflow. Multi-tenant architecture with fully isolated environments for admins, advisors, and business owners. 𝟐. 𝐌𝟏𝐧𝐞𝐫𝐚𝐥 (𝐎𝐢𝐥 𝐚𝐧𝐝 𝐆𝐚𝐬 𝐃𝐚𝐭𝐚 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦): Built a geospatial property and mineral rights platform serving 100k+ users a month. ⛁ 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐌𝐚𝐩𝐛𝐨𝐱, 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥 𝐔𝐈, 𝐒𝐐𝐋 Rendered millions of spatial records with viewport-based lazy loading and an optimized rendering pipeline. Reduced map interaction latency by 55%. Real-time polygon interaction at city-scale data volumes with no UI freezes. 𝟑. 𝐏𝐚𝐭𝐢𝐞𝐧𝐭 𝐉𝐨𝐮𝐫𝐧𝐞𝐲 (𝐀𝐈 𝐂𝐥𝐢𝐧𝐢𝐜𝐚𝐥 𝐀𝐬𝐬𝐢𝐬𝐭𝐚𝐧𝐭): Built an AI-powered diagnostic assistant now used by 500,000+ practitioners in Brazil. ⛁ 𝐑𝐞𝐚𝐜𝐭, 𝐋𝐚𝐧𝐠𝐂𝐡𝐚𝐢𝐧, 𝐑𝐀𝐆, 𝐏𝐢𝐧𝐞𝐜𝐨𝐧𝐞, 𝐎𝐩𝐞𝐧𝐀𝐈, 𝐆𝐏𝐓-𝟒 Enabled AI-driven diagnostic insights from structured and unstructured clinical data. Built scalable vector search for rapid medical context retrieval. Privacy-first architecture compliant with local health data regulations. I treat every project like a product decision, not a ticket queue. I ask the questions most developers skip, flag scope issues before they become delays, and bring architectural thinking from the first conversation. I integrate AI throughout the development process, from prototyping and code generation to performance audits and QA, which means faster delivery without lowering the quality bar. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐡𝐚𝐯𝐞 𝐰𝐨𝐫𝐤𝐞𝐝 𝐚𝐜𝐫𝐨𝐬𝐬: ➤ SaaS ➤ Fintech ➤ Healthcare ➤ Oil and Gas ➤ Real Estate ➤ E-commerce ➤ EdTech ➤ HR ➤ Marketplace ➤ Marketing. 𝟏𝟎𝟎% 𝐫𝐞𝐟𝐮𝐧𝐝 𝐢𝐟 𝐈 𝐝𝐨𝐧'𝐭 𝐦𝐞𝐞𝐭 𝐲𝐨𝐮𝐫 𝐞𝐱𝐩𝐞𝐜𝐭𝐚𝐭𝐢𝐨𝐧𝐬. 𝐍𝐨 𝐡𝐚𝐬𝐬𝐥𝐞, 𝐧𝐨 𝐜𝐨𝐧𝐝𝐢𝐭𝐢𝐨𝐧𝐬. Message me with your project details and I'll respond with a clear plan, no sales pitch, just a direct read on what your build actually needs!

✅ Top-Rated Full-Stack Web Developer. ✅ Microsoft Certified. ✅ 100% Job Success Score ✅ 5-Star Streak ✅ 20+ production apps (100K+ users). ✅ 6+ years Experience. ✅ Get 3X faster high-performance web apps. ✅ 20K+ tech followers ✅ 1M+ Daily API Systems ✅ Pay only if satisfied. As a Top-Rated Full-Stack Developer with 6+ years of experience building high-performance web apps for startups and enterprises. With 20+ apps deployed (handling 100K+ users), 1M+ daily API systems, and a 100% Job Success Score on Upwork, I bring speed, reliability, and cutting-edge tech to your project. Think your project is too complex? As a Full-Stack Web Developer, I build scalable, market-ready solutions—3X faster than average—without compromising quality. My expertise includes React.js, Next.js, and modern full-stack architectures to tackle any challenge.Beyond code, I actively share knowledge with 20K+ tech followers, ensuring my work stays ahead of industry trends. Technical Skills: ➡️ Frontend: React.js | Next.js | TypeScript | Redux | Tailwind CSS ➡️ Backend: Node.js | Python | PostgreSQL | MongoDB | WebSockets | Graphql | AWS ➡️ AI Integration: OpenAI API | LLM Prompt Engineering | AI Chatbots | AWS Bedrock | Gen AI ➡️ DevOps & Cloud: AWS (Amplify, Route 53, SES) | Docker | Git/GitHub | Serverless Architecture ➡️ Payments/Auth: Stripe API | JWT | OAuth | Sumsub KYC What You’ll Get Working With Me ➡️Dependable Partner for High-Stakes Projects ➡️Quick Response during work hours ➡️Clean, Scalable Code: Full documentation + AWS-optimized architecture. ➡️Production-Ready Apps: 20+ delivered (fintech, NFT marketplaces, SaaS). ➡️Zero Payment Headaches: Stripe integrations processing $500K+ with no fraud. ➡️Weekly Demos: See progress every Friday—no "where’s the code?" surprises. ➡️Time-Zone Respect: Scheduled updates that fit your working hours. ➡️Risk-Free Start: Free project audit to map out pitfalls before you commit. Featured Clients & Projects: ✅Built: Grid connection analysis platform with 1M+ daily geospatial requests (MapLibre/AWS). ✅Delivered: Scalable NFT platform with Sumsub KYC integration. ✅Built Fine-tuned GPT models for 40% faster response times. ✅Developed: Custom Stripe payment gateway with zero fraud incidents. ✅Architected: High-traffic job board (100K+ users) with AWS-optimized backend. ✅Engineered: AI-driven resume parsing with OpenAI API. My approach to development is focused on delivering high-quality, maintainable code that meets the needs of my clients. Thank you for considering my profile, and I look forward to working with you! ____________________________________________________________________ #FullStackDeveloper #WebDevelopment #APIDevelopment #ReactDeveloper #JavaScript #TypeScript #PaymentIntegration #StripePayments #FrontendDevelopment #BackendDevelopment #NodeJS #AWS #Azure #CloudComputing #Microservices #GraphQL #CI/CD #Serverless #NextJS #Redux #MongoDB #PostgreSQL #AgileDevelopment #SoftwareArchitecture #Auth0 #Gleap #Hotjar #GoogleAnalytics #Docker #LLM #AI #WebSocket #Socket.io #Express #Firebase #Bootstrap4 #HTML5 #CSS3 #TailwindCSS #Clicky #Hubspot

Hi, I’m Kaleb, a senior Full-Stack Developer specializing web applications, SaaS platforms, and intelligent automation. I help businesses design and build scalable applications that combine modern software engineering with AI capabilities. With experience across both frontend and backend development, I can take a product from idea to deployment. What I can help you build ✅ Full-stack web applications (frontend and backend) ✅ GIS and geospatial software solutions ✅ AI-powered products and intelligent applications, AI agents ✅ Custom APIs, integrations, and workflow automation ✅ Scalable cloud-ready platforms and backend systems Core Technologies Backend & APIs Python Django FastAPI REST APIs PostgreSQL Authentication & third-party integrations Background jobs and asynchronous workflows Frontend React Next.js JavaScript / TypeScript HTML, CSS, Tailwind CSS Responsive UI development AI & Automation OpenAI API Integration LLM Applications Retrieval-Augmented Generation (RAG) LangChain LangGraph Multi-Agents AI Agents & Workflow Automation AI Chatbots Prompt Engineering Vector database integrations Dev & Deployment Docker Git / GitHub / GitLab CI/CD workflows Cloud deployment and scalable architectures Tools & Collaboration I’m comfortable working in collaborative product environments using tools such as Jira, Trello, ClickUp, Figma, GitHub, and GitLab, and I communicate clearly throughout the development process. Why work with me? Full-stack ownership: from architecture to deployment Strong focus on scalable, maintainable systems Clear communication and reliable delivery User-focused engineering with attention to performance and experience Whether you need an AI-powered product, a modern SaaS platform, API integrations, or a scalable backend/frontend system, I’m here to help turn your idea into a reliable product. Let’s build something great together.