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Executive Summary Results-driven AI Engineer, Senior ADAS Developer, and Technical Team Lead with over 4 years of experience delivering high-performance AI models, embedded automotive systems, and end-to-end AI automation pipelines. Holds a Master’s degree in Control and Automation Engineering from Ho Chi Minh City University of Technology. Combines expertise in Computer Vision, Embedded ADAS (C++), and AI Agents to build enterprise-grade, high-speed AI solutions and scale brand ecosystems for global clients. Core Competencies 🔹 Artificial Intelligence & Computer Vision: Object Detection, Image Segmentation (Semantic & Instance), OCR, Pose Estimation, Re-ID, Action Recognition, Generative AI (Text-to-Image, Image-to-Image, Super-Resolution), Model Quantization (CPU, GPU, TPU). 🔹 AI Agents & Workflow Automation: Autonomous AI Agents (OpenClaw), Multi-Agent Orchestration, Workflow Automation (n8n, Make, Zapier, GoHighLevel), AI Inbox & CRM Triaging. 🔹 Automotive & Embedded Systems: ADAS Features (LKA, TSR, Towaway Alert, Emergency Call), Sensor Fusion (Camera + LiDAR), Embedded C++, Hardware Deployment (Jetson Nano, Edge Devices). 🔹 Generative Media & AI Pipelines: AI Image & Video Synthesis (Kling, HeyGen, Veo, Nano Banana), Prompt Engineering, Automated Content Pipelines. 🔹 Modern AI-Native Tooling: Cursor, Claude Code, Claude API, Automated Dev Environment Optimization. 🔹 Cloud & Infrastructure: Amazon Web Services (AWS), VPS Deployment & Management, Docker, CI/CD, Google Tag Manager. Technical Skills Languages: Python, C++, MATLAB AI Frameworks & Libraries: PyTorch, TensorFlow, Keras, OpenCV, SciPy, Pandas, Scikit-learn, NumPy Object Detection & Vision Models: YOLOv5, YOLOv8, YOLOv9, YOLOv11, SAM, SAMv2, Mask R-CNN, DeepLabV3, U-Net, EfficientNet, FaceNet, ArcFace Tracking & Landmark Detection: ByteTrack, DeepSort, MediaPipe OCR Engines: PaddleOCR, Tesseract AI Agents & Automation Tools: Claude API, OpenClaw, n8n, GoHighLevel (GHL), Make, Zapier Generative Media Tools: Kling, HeyGen, Veo, Nano Banana GUI & Web Development: PyQt, Tkinter, Flask, Full-stack Python Key Achievements & Impact 🔹 AI Agent Deployment: Architected and deployed production-ready OpenClaw AI agents on VPS infrastructure for e-commerce, real estate, and agency clients—automating customer onboarding, lead qualification, and inbox triaging. 🔹 Automated Audience Growth: Built an automated content synthesis pipeline using n8n + Python, scaling an organic audience to 350,000+ followers in 7 months. 🔹 Enterprise Data Pipelines: Engineered high-throughput, secure data and AI pipelines for enterprise clients (including brands like Whirlpool), adhering to strict data integrity and cybersecurity protocols. 🔹 Generative Media Systems: Created custom AI image and video generation pipelines for e-commerce brands utilizing Kling, HeyGen, Veo, and Nano Banana to automate product marketing asset creation. Professional Experience & Key Projects Senior AI Developer & ADAS Team Lead 🔹 Automotive Embedded ADAS Features (C++ / MATLAB): Lead the design, implementation, and low-level/high-level architectural documentation for key ADAS functions including Lane Keeping Assist (LKA), Traffic Sign Recognition (TSR), Towaway Alert, and Emergency Call systems. 🔹 Perception & Sensor Fusion Projects: Developed multi-sensor perception pipelines combining LiDAR and camera inputs for urban street understanding; optimized YOLO architectures for real-time edge processing on Jetson Nano modules. 🔹 Model Quantization & Edge Optimization: Quantized heavy vision networks (YOLOv8/v11, SAM) for deployment across CPU, GPU, and TPU setups, ensuring real-time performance without compromising precision. AI Automation & Systems Engineer 🔹 AI-Native Development: Leveraged modern AI tooling (Cursor, Claude Code) to build and deploy full-stack Python applications and automation workflows at 3x development velocity. 🔹 CRM & Marketing Automation: Integrated GoHighLevel (GHL), Zapier, and Make with custom Python backend services and LLM agents to deliver automated CRM lead routing, AI email responders, and analytics tracking via Google Tag Manager. Why Work With Me 🔹 Enterprise Rigor: Extensive experience building scalable pipelines for enterprise brands. Every project includes comprehensive high-level design (HLD) and low-level design (LLD) documentation, unit testing, and security checks. 🔹 AI-Native Speed: By integrating state-of-the-art coding workflows (Cursor, Claude Code, modern LLM APIs), solutions are shipped significantly faster than traditional development lifecycles. 🔹 Outcome-Oriented Commitment: Complete ownership of results from initial concept to production deployment. Thank you for taking the time to review my profile. Some of my notable projects are showcased in my personal portfolio — feel free to browse through it to understand better the quality of work I deliver.

• AI Native SDLC (BMAD) - Claude Code, Cursor, Github Copilot • 10 years of experience with Node.js • 10 years of experience with modern JavaScript • 9 years of experience with TypeScript • 7 years of experience with Java core • Integration with the third-party library, Javascript library. • Have a strong experience with a gulp, browserify, webpack, ESlint, Prettier • Unit test: Karma, Jasmine, Protractor, Mocha, Jest... • Have 7 years of exp with ReactJS, Redux, Redux-Saga, Redux-Thunk • Have 7 years of exp with Angular, NgRx, Angular material • Have strong experience with React Native (Expo) • Have strong experience with Node PKG, build executable file for cross platform (window, macOS, linux) • Have strong experience in build configuration for Ionic/Cordova • Have strong experience with Express, Hapi, Polka • Have strong experience with Firebase, FileStore, MongoDB, MongoDB Atlas, PostgreSQL, MySQL, Redis, Mongo-connector, Elastic Search, Yoeman Generators, Google ReCaptcha v2, v3 • Have strong experience with Lerna, monorepo, git workflow, ci/cd, published NPM • Have strong experience with AWS S3, AWS EC2, AWS SES, AWS SDK • Have a good experience with Google Cloud Platform, deploy a new site to GCP • Deploy to EC2, GCP, Heroku, Firestore • Have strong experience in system building using MEAN stack, MERN stack, and LAMP stack • OOP, MVC, MVVM, Singleton, Factory design pattern, algorithm, and data structure. • English reading, writing and speaking well

In early 2023, right after ChatGPT launched, a tech founder hired me with an idea and no product. He wanted his own personalized AI chat platform, with image generation built in from day one. 3.5 months later, it was live. Django backend, React UI, OpenAI API, third-party image generation. Some of the best features weren't in his spec. I proposed preset chatbot roles so users could switch personas in one click instead of typing prompts from scratch. He loved it. I also walked him through everything outside the code: which VPS to pick, how to manage API keys, UX trade-offs. His review is still on my profile: "Tremendously talented, respectful and responsible!! The developer we would all want in our teams." Since then I've spent three years building backend systems for banks, where a silent failure costs real money. Recent results: - Optimized an automated debt collection system for a major bank: throughput 209 → 802 accounts/min (+282%), processing time down 74% - Cut interbank transaction failure rate from 30% to 2.5%. Processing time went from 120 seconds to about 1.5 - Led a team of 8 engineers as Technical Lead/Founder: architecture, code standards, CI/CD (Jenkins, Docker, Kubernetes), payment gateway integrations - Deployed a generative AI model for real-time image processing in a production consumer app Now I'm back on Upwork, doing one thing: AI integration and automation built like production software. Not demos that break the week after delivery. WHAT I BUILD AI Integration LLM features inside your product: OpenAI and Claude APIs, function calling, custom chat interfaces, document processing. I've been shipping with GPT APIs since they launched. Backend Automation & APIs Python (Django, FastAPI) systems that connect your tools. REST APIs, webhooks, scheduled jobs, payment gateways, messaging (Telegram, WhatsApp, Zalo). Workflow Automation n8n when no-code fits. Custom code when it doesn't. Either way you get documentation, so your team can maintain it without me. Web Scraping & Data Pipelines Selenium and API-based collection, cleaning, storage. A past client put it simply: "One of the best freelancers I worked with. I will hire him again." WHO HIRES ME Founders and teams tired of: - AI features that demo well and fall apart in production - Automations that fail silently until a customer complains - Freelancers who build exactly what's in the ticket, nothing more - Undocumented systems nobody can maintain HOW I WORK Written-first. You get a clear plan before I write code, then structured progress updates through chat and email. No chasing me for status. Every system ships with docs your team can actually use. Any timezone works. My clients have been in the US, Europe, and Asia. TECH STACK Languages: Python (primary), Go, JavaScript/TypeScript Backend: Django, FastAPI, Flask, Celery AI/LLM: OpenAI API, Claude API, function calling, prompt engineering, n8n Data: PostgreSQL, MySQL, MongoDB, Redis, Kafka Infra: Docker, Kubernetes, Jenkins, Nginx, AWS, GCP, DigitalOcean Scraping: Selenium, REST API automation Send me a short description of what you're trying to automate or build. I'll reply with a concrete plan: what I'd build, how long it takes, what it costs.

📱 Mobile Developer(Flutter/iOS) | Building Mobile Solutions That Scale ⭐⭐⭐⭐⭐ Whether you're a startup founder launching your first app, a business owner scaling your mobile presence, or a team building the next big platform, I bring the technical expertise to transform your vision into a high-performance, user-loved mobile application ready for the App Store. With over 10 years of hands-on Mobile development, I've delivered 20+ successful projects that don't just work—they drive real business results. I combine deep technical knowledge with exceptional communication skills, ensuring seamless collaboration from concept to launch. I'm committed to solving your toughest mobile challenges efficiently in these areas: 📱 𝐂𝐎𝐑𝐄 𝐅𝐋𝐔𝐓𝐓𝐄𝐑 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄 • Flutter 3.x & Dart • Objective-C, Swift, SwiftUI • Cross-platform iOS & Android development • Responsive web applications • Material Design & Cupertino widgets • Custom UI/UX implementation • Pixel-perfect designs 🏗️ 𝐒𝐓𝐀𝐓𝐄 𝐌𝐀𝐍𝐀𝐆𝐄𝐌𝐄𝐍𝐓 & 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄 • BLoC Pattern • Provider • Riverpod • GetX • Clean Architecture • MVVM • Repository Pattern • Scalable app structure for long-term maintainability 🔗 𝐁𝐀𝐂𝐊𝐄𝐍𝐃 & 𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍 • Firebase (Auth, Firestore, Cloud Functions, FCM, Analytics) • REST APIs • GraphQL • WebSocket for real-time features • Third-party SDK integration • API design & implementation 💳 𝐏𝐀𝐘𝐌𝐄𝐍𝐓 & 𝐌𝐎𝐍𝐄𝐓𝐈𝐙𝐀𝐓𝐈𝐎𝐍 • Stripe • PayPal • In-App Purchases (iOS & Android) • Subscription models • Payment gateway integration • Secure transaction handling ⚡ 𝐏𝐄𝐑𝐅𝐎𝐑𝐌𝐀𝐍𝐂𝐄 𝐎𝐏𝐓𝐈𝐌𝐈𝐙𝐀𝐓𝐈𝐎𝐍 • App performance profiling & optimization • Memory management • Lazy loading & caching strategies • Reducing app size • Smooth 60fps animations • Offline-first architecture with local storage 💾 𝐃𝐀𝐓𝐀𝐁𝐀𝐒𝐄 & 𝐒𝐓𝐎𝐑𝐀𝐆𝐄 • SQLite • Hive • Drift (Moor) • SharedPreferences • Secure storage • Cloud Firestore • Realm • Data encryption & security best practices 🔔 𝐑𝐄𝐀𝐋-𝐓𝐈𝐌𝐄 𝐅𝐄𝐀𝐓𝐔𝐑𝐄𝐒 • Push notifications (FCM, OneSignal) • Live chat & messaging • Real-time data sync • WebSocket connections • Socket.io integration 🧪 𝐓𝐄𝐒𝐓𝐈𝐍𝐆 & 𝐐𝐔𝐀𝐋𝐈𝐓𝐘 𝐀𝐒𝐒𝐔𝐑𝐀𝐍𝐂𝐄 • Unit testing • Widget testing • Integration testing • Automated testing with CI/CD • Code coverage • Comprehensive testing before deployment 🚀 𝐃𝐄𝐏𝐋𝐎𝐘𝐌𝐄𝐍𝐓 & 𝐃𝐄𝐕𝐎𝐏𝐒 • App Store & Play Store submission • TestFlight & Firebase App Distribution • CI/CD with GitHub Actions, Codemagic, Bitrise • Version management • Beta testing coordination 🎯 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄 Successfully delivered apps across: • E-commerce & Retail • Fintech & Banking • Healthcare & Telemedicine • Food Delivery • Social Networking • On-Demand Services • Enterprise Solutions • Educational Platforms 💼 𝐏𝐑𝐎𝐕𝐄𝐍 𝐑𝐄𝐒𝐔𝐋𝐓𝐒 • 98% client satisfaction with zero missed deadlines • Apps generating $2M+ combined revenue for clients • 40-60% cost savings through efficient cross-platform development • Average 4.8+ app store ratings on delivered projects • 15+ successful projects across iOS and Android 🤝 𝐌𝐘 𝐀𝐏𝐏𝐑𝐎𝐀𝐂𝐇 I don't just code I collaborate. From initial concept to App Store launch, I work closely with clients to ensure their vision becomes a polished, scalable product. Clean code, thorough testing, and clear communication are non-negotiable in my process. I bring not only technical depth but also Agile methodology expertise, delivering projects on time while maintaining the highest quality standards. 📌 Available for hourly, fixed-rate, and ongoing B2B, B2C, and SaaS engagements. 🎯 Ready to transform your app idea into a profitable reality today. 🌍 Countries Collaborated With: 🇺🇸 United States | 🇨🇦 Canada | 🇬🇧 United Kingdom | 🇦🇪 United Arab Emirates | 🇩🇪 Germany | 🇫🇷 France | 🇦🇺 Australia | 🇸🇬 Singapore | 🇻🇳 Vietnam...

Hi, I'm Paul. Transforming complex tech ideas into market-ready products is my forte. With 8 years of hands-on experience, I offer end-to-end expertise in advanced PCB design, rapid prototyping, and robust firmware development for IoT, robotics, and ultra-low power applications. My background as a startup team leader ensures a product-centric vision and accelerated project/ MVP delivery. 1. What I Offer: End-to-End Embedded & Hardware Solutions - Advanced PCB Design & Hardware Development: Multi-layer PCBs for complex applications, focusing on reliability and performance. - High-Speed Design: Expertise in USB 2.0, HDMI 2.0, DDR3/DDR4/LDDR4, PCIe, NAND Flash, 10/100/1000/10Gbase-T1 Ethernet, PoE++. - Microcontrollers & SoMs: ARM Cortex-M3/M4 (STM32WL, ESP32, Nordic nRF52/53/91 series); custom boards for Raspberry Pi CM4, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126, TI AM6254. - Power & Analog: DC-DC (Flyback, Boost, Buck, LDOs), motor control (BLDC, AC/DC servo via I/O, ADC, CAN), high-resolution ADC/DAC, Audio circuits. DFM/DFA & Compliance: Strong knowledge of manufacturing, assembly processes, and layout techniques for EMC/EMI compliance. - Tools: Altium Designer (Altium365/CircuitMarker), KiCAD, Eagle, EasyEDA; OrCAD, PSpice, CAM350. - Prototyping: Experience with BOM creation (Digikey/Mouser/JLCPCB) and combining dimensional drawings into precise Gerber formats. - CAD/3D design tool: SolidWorks, Inventor... 2. Robust Firmware Development: - Languages: C, C++, Python, Qt. IoT & Wireless: MQTT, Thingsboard, AWS IoT, Blynk; experience with RF, Wi-Fi, BLE, GSM (3G/4G/LTE), LoRaWAN. - Robotics: Expertise in ROS/ROS2 for applications like AGV, AMR, 6-axis robots. Low-level Interaction: Proficient in designing custom drivers, managing communication protocols (QSPI, I2C, RS485, RS232, CAN, Modbus TCP/IP/RTU). - UI/UX for Embedded: Figma, TouchGFX, LVGL for STM32, ESP32, Raspberry Pi. 3. Product & Project Leadership: - Startup Leadership: Proven ability to lead and manage cross-functional teams in startup environments. - Project Management: Expertise in managing design, fabrication, and procurement for cost-efficient and timely PCB acquisition. - Problem-Solving & Research: Strong initiative, research capabilities, and excellent troubleshooting skills for electrical evaluation, testing, and PCB issues. 4. Why Partner with Me? - End-to-End Product Vision: My background in leading startup projects provides a holistic view, ensuring your solution is not just technically sound but also viable and market-ready. - Deep Technical Mastery: From complex high-speed routing and power supply design to robust firmware for robotics and IoT, I handle intricate challenges with precision. - Cost & Time Efficiency: My knowledge of DFM/DFA and experience in optimizing BOMs, coupled with efficient procurement management, helps streamline your project and reduce overall development costs and time. Ready to turn your innovative idea into a high-quality product? Let's connect to discuss how my expertise can drive your project's success.

I build production ready mobile applications using React Native and Flutter for businesses that need reliable, scalable, and high performance products. My expertise is focused on Fintech, Logistics, and B2B SaaS applications, where stability, real time communication, secure data handling, and long term maintainability matter far more than simply shipping features. I enjoy working on products that people depend on every day. Whether it is processing payments, tracking deliveries, managing business operations, or connecting teams in real time, I focus on building applications that continue performing reliably as users and business requirements grow. I have worked on mobile applications that involve much more than UI implementation. My experience includes payment processing, real time synchronization, background services, offline functionality, push notifications, location tracking, API integration, authentication, and performance optimization under real world conditions. I mainly work with startups and growing businesses from the United States, United Kingdom, Canada, Australia, and Germany, and I can easily align with your timezone to keep communication fast and development moving efficiently. 💰 Fintech Applications Financial applications demand accuracy, security, and consistency. Small technical issues can quickly become business problems. I help clients solve challenges such as: 🔹 Preventing duplicate transactions during unstable network conditions 🔹 Building reliable wallet and balance synchronization 🔹 Integrating Stripe and secure payment gateways 🔹 Implementing secure authentication and role based permissions 🔹 Creating financial dashboards with real time updates 🔹 Improving API reliability for payment processing The result is stable financial applications that users can trust while remaining easy to maintain as the platform grows. 🚚 Logistics and Mobility Applications Logistics platforms require constant synchronization between users, drivers, dispatchers, and backend systems. I build applications capable of handling real operational environments by solving challenges including: 🔹 Live GPS tracking with optimized battery consumption 🔹 Real time driver and delivery status synchronization 🔹 Offline functionality with automatic background synchronization 🔹 Route visualization using Google Maps SDK 🔹 Background location updates without affecting performance 🔹 Push notifications for deliveries and operational events The result is dependable logistics applications that continue working even under unstable network conditions. 🏢 B2B SaaS and Business Applications Many business applications become difficult to maintain as teams and workflows grow. I build scalable mobile applications that improve business operations while remaining simple for end users. Typical challenges I solve include: 🔹 Multi role authentication and permission systems 🔹 Real time synchronization across multiple users 🔹 Offline data collection with automatic syncing 🔹 CRM, ERP, payment platform, and third party API integration 🔹 Dashboard optimization for large business datasets 🔹 Secure cloud based architecture for business applications The result is mobile platforms that help businesses improve productivity without sacrificing reliability or performance. ⚙️ Technical Skills • React Native • Flutter • JavaScript • TypeScript • Node.js • Express • FastAPI • Firebase Authentication • Firebase Firestore • Firebase Cloud Messaging • Supabase • PostgreSQL • Supabase Edge Functions • Stripe • Google Maps SDK • REST APIs • GraphQL • WebSockets • Redux • Zustand • Git • GitHub Actions • CI/CD • App Store Deployment • Google Play Store Deployment 🧠 My Development Approach ✔ Designing scalable application architecture before development ✔ Building reliable API integration with proper error handling ✔ Planning offline functionality from the beginning ✔ Optimizing application performance throughout development ✔ Writing clean, maintainable, and reusable code ✔ Testing edge cases before release ✔ Delivering applications ready for production deployment 🌍 Clients I Work With I primarily work with startups, SaaS companies, and growing businesses building long term digital products. Industries I commonly work with include: • Fintech • Logistics • Fleet Management • Transportation • B2B SaaS • Business Operations • Field Service Management • Delivery Platforms • Internal Business Tools ⏰ Timezone I can align with your timezone to ensure efficient communication, quick feedback cycles, and smooth collaboration throughout the project. If you're building a mobile product and need someone who focuses on reliability, scalability, and long term success instead of simply delivering screens, feel free to click the Message button. I'd be happy to discuss your project and explore how we can build a mobile application that is ready for real users from day one.