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I'm an innovative Computer Engineer with skills in Computer, Embedded, and Electronic Design. Experienced in developing IOT systems, and programming them. Let's make your ideas come to reality. Services Offered: - Embedded Hardware (Arduino, AVR, ESP32, CH32, STM32, Nordic) - Schematic Design / Modification / Review - BOM/Component Selection - PCB Design / Modification (KiCAD, EasyEDA) - Embedded Firmware (Arduino, PlatformIO, ESP-IDF, STM32) I also offer these services: - Web App Development (Node.JS, REST, Firebase) - 3D Parametric Enclosure/Part Modeling and Design (FreeCAD, Autodesk Fusion)

I am a top rated freelancer and have been making games since 2010, mostly with C++, Game Maker, and Unity. Since 2013 I've worked for various clients here on Upwork (was called oDesk back then). The work I did for some of my clients involved having to learn new programming languages, these feature my flexibility. I recently made around 50 HTML5 games for an online school based in Australia - you can try eight of those for free I am particularly good at making rough game concepts into fully playable games, and can do that very quickly if the clients allows me to use Game Maker:Studio 1 or 2 for the job. I can also make small coding projects in programming languages I've never even used before if given enough time. I also do robotics and general automation with Arduino and C++ in my spare time. Even more recently I've started taking AI training data annotation and quality control tasks for both image generators and large language models - in particular code review for LLM training. I've also started teaching Game Maker:Studio lessons. These are the products that I have developed for my clients: *Android - games, other apps *HTML5 - games, other apps *iOS - games *Windows - games, tools, scientific simulations *Game Maker Studio 1 & 2 extensions (C++, javascript) *Apps and games in programming languages that I haven't learned prior to taking on their respective jobs *Autohotkey scripts for remapping keys and general automation *Python image processing tasks

🏆 𝗨𝗣𝗪𝗢𝗥𝗞 𝗘𝗫𝗣𝗘𝗥𝗧 𝗩𝗘𝗧𝗧𝗘𝗗 💪 Top 1% of performers | 15,000+ hours 🎖️ Top Rated Plus | 100% Job Success ✔︎ 20+ years experience in Embedded Systems, IoT & Full Stack Development I design and develop production-grade embedded and IoT systems, from firmware and hardware integration to cloud-connected platforms. Specialized in STM32, Nordic nRF52/nRF53/nRF91, ESP32, RTOS (FreeRTOS/Zephyr), and secure C/C++ firmware development. I help companies turn hardware concepts into reliable, scalable, real-world products. 🚀 𝗔𝗕𝗢𝗨𝗧 𝗠𝗘 I am a Senior Embedded Systems and IoT Engineer with over 20 years of experience delivering production-ready systems across embedded firmware, hardware design, cloud infrastructure, and full stack applications. I specialize in end-to-end system development — from low-level firmware and PCB collaboration to cloud integration and application layers — ensuring robust and scalable real-world deployments. I work with startups and engineering teams to transform complex ideas into reliable production systems. 🔧 𝗘𝗠𝗕𝗘𝗗𝗗𝗘𝗗 𝗦𝗬𝗦𝗧𝗘𝗠𝗦 & 𝗙𝗜𝗥𝗠𝗪𝗔𝗥𝗘 Extensive experience in production-grade embedded firmware development. ▸ 𝗠𝗜𝗖𝗥𝗢𝗖𝗢𝗡𝗧𝗥𝗢𝗟𝗟𝗘𝗥𝗦 & 𝗣𝗟𝗔𝗧𝗙𝗢𝗥𝗠𝗦 ▪ ARM Cortex-M ▪ STM32 ▪ Nordic nRF52 / nRF53 / nRF91 ▪ ESP32 / ESP8266 ▪ Raspberry Pi ▪ Arduino ▪ Microchip PIC ▪ Silicon Labs BGM220 ▸ 𝗥𝗧𝗢𝗦 & 𝗘𝗠𝗕𝗘𝗗𝗗𝗘𝗗 𝗔𝗥𝗖𝗛𝗜𝗧𝗘𝗖𝗧𝗨𝗥𝗘𝗦 ▪ FreeRTOS ▪ Zephyr RTOS ▪ Bare-metal firmware ▪ Multi-threaded systems ▪ Event-driven architectures ▪ OTA firmware updates ▪ Secure boot & encrypted firmware ▸ 𝗖𝗢𝗠𝗠𝗨𝗡𝗜𝗖𝗔𝗧𝗜𝗢𝗡 & 𝗪𝗜𝗥𝗘𝗟𝗘𝗦𝗦 ▪ UART, SPI, I2C, USB ▪ BLE, Bluetooth Classic ▪ LoRa / LoRaWAN ▪ Wi-Fi, LTE, NB-IoT ▪ RS232 / RS485 ▸ 𝗦𝗘𝗖𝗨𝗥𝗜𝗧𝗬 & 𝗡𝗘𝗧𝗪𝗢𝗥𝗞𝗜𝗡𝗚 ▪ TCP/IP, MQTT, HTTP/HTTPS ▪ TLS / mbedTLS ▪ ARM TrustZone ▪ Secure elements (Optiga, ST-SAFE) ▪ PKI systems ▪ JSON, XML, Protobuf ☁️ 𝗜𝗢𝗧 & 𝗖𝗟𝗢𝗨𝗗 𝗦𝗬𝗦𝗧𝗘𝗠𝗦 ▪ AWS IoT, EC2, S3, RDS ▪ MQTT-based architectures ▪ Industrial IoT platforms ▪ Telemetry & remote monitoring ▪ Cellular / NB-IoT / LTE devices ▪ Robotics & automation systems 💻 𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 ▸ 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 ▪ Java (J2SE/J2EE), Spring ▪ JSF, JSP, Servlets ▪ Hibernate, JPA ▪ Node.js ▪ PHP / CakePHP ▪ REST APIs ▸ 𝗙𝗥𝗢𝗡𝗧𝗘𝗡𝗗 ▪ ReactJS ▪ JavaScript, HTML5, CSS3, Bootstrap ▸ 𝗗𝗔𝗧𝗔𝗕𝗔𝗦𝗘𝗦 ▪ MySQL ▪ Apache Derby ▪ Database design & optimization 🛠 𝗛𝗔𝗥𝗗𝗪𝗔𝗥𝗘 & 𝗣𝗖𝗕 𝗗𝗘𝗦𝗜𝗚𝗡 ▪ PCB design (Altium Designer / KiCad) ▪ Analog & digital circuit design ▪ Hardware bring-up & debugging ▪ Sensor integration ▪ Power systems ▪ Motor control (PWM, stepper, servo, robotics) 🧠 𝗜𝗠𝗔𝗚𝗘 𝗣𝗥𝗢𝗖𝗘𝗦𝗦𝗜𝗡𝗚 & 𝗔𝗜 ▪ OCR systems ▪ Signal processing & filtering ▪ Embedded AI / ML integration ▪ Sensor data conditioning ▪ Computer vision pipelines 🧪 𝗤𝗨𝗔𝗟𝗜𝗧𝗬 & 𝗦𝗘𝗖𝗨𝗥𝗜𝗧𝗬 ▪ Secure firmware architecture ▪ Veracode static/dynamic analysis ▪ System debugging & reliability engineering ▪ Performance optimization ▪ Production-grade system hardening 🧾 𝗣𝗥𝗢𝗚𝗥𝗔𝗠𝗠𝗜𝗡𝗚 𝗟𝗔𝗡𝗚𝗨𝗔𝗚𝗘𝗦 ▪ C / C++ ▪ Embedded C ▪ Java ▪ Python ▪ JavaScript ▪ PHP ▪ MATLAB 🎯 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 𝗣𝗛𝗜𝗟𝗢𝗦𝗢𝗣𝗛𝗬 I focus on building reliable, maintainable, and production-ready systems by combining strong engineering fundamentals with real-world product experience across hardware, firmware, cloud, and software layers. If you need embedded firmware, IoT systems, cloud integration, or full stack development, I can help bring your product from concept to production.

Are you looking for a seasoned professional who can handle every facet of your embedded systems and product development projects? With over 15 years of experience, I specialize in transforming ideas into fully functional products. Core Competencies: 1. Embedded System Design: Proficient in both digital and analog circuit design, including circuit analysis and simulation. 2. PCB Design & Layout: Skilled in creating layouts from single to multilayer designs using EAGLE, Altium Designer, KiCAD and more. 3. AI & Machine Learning: Specialized in AI on the Edge, integrating AI and OpenAI models into embedded systems. Capable of designing machine learning models, performing data engineering, and training data for deployment. 4. Robotic Engineering & Connectivity: Expertise in robotic engineering using ROS and other operating systems, with extensive experience in connectivity solutions such as BLE, Bluetooth, WiFi, Zigbee, LoRa, GPS, GPRS, GSM, Wi-Fi, NFC, RFID, and mobile networks including 3G/4G/5G. 5. Firmware & Software Development: Expert in C++, Python, Embedded C, Visual Basic, C#, Python, SQL and Java, with experience in frameworks like Arduino, ESPIDF, and environments such as NXP, Atmel, PIC, Python, AVR, Microchip Microcontrollers, Nordic nRF52, Raspberry Pi 6. Mobile Development & Cloud-based IoT Solutions: Proven track record in developing mobile applications and integrating cloud-based IoT systems for seamless connectivity and management. 7. Full Development Lifecycle: Comprehensive experience from design, component selection, PCB layout, enclosure printing, final assembly, testing, and debugging the system ensuring product excellence. Notable Projects: 1. Developed a BLE-controlled drawing device using stepper motors and servos. Implemented AI on the edge sound prediction using Machine Learning Models with ESP32, predicting animal sounds with a digital microphone. 2. Designed and deployed machine learning models for real-time data processing on edge devices like ESP32. 3. Created an autonomous robot featuring Jetson computer, Lidar, microcontroller, and BLDC motors. My wide-ranging expertise in electronics design, AI integration, machine learning, firmware development, IoT, mobile development, robotic engineering, and connectivity allows me to provide end-to-end solutions tailored to your needs. I have a fully equipped electronics and assembly shop with capabilities like 3D printing, hot plate soldering, and comprehensive CAD modeling using Fusion 360. Professional Certifications: Certified in Machine Learning, ASTM Standards, Firmware Development, and Embedded Systems Design. Client Testimonials (you can view my upwork profile): Clients commend my attention to detail, innovative solutions, and commitment to delivering projects that exceed expectations. Feedback highlights my ability to transform concepts into market-ready products efficiently and effectively. Let’s bring your next project to life with precision and creativity.

I help merchants and teams launch high-converting Shopify stores, migrate legacy platforms to Shopify, and build custom Shopify apps and headless storefronts using TypeScript and React. I focus on measurable outcomes: faster page speed, smoother checkout flows, and maintainable production code. 17+ years • 50+ projects • 8000+ work hours on Upwork Services I provide: ✔ Shopify theme development & customization (Liquid, OS 2/3, responsive design) ✔ Shopify app development & integrations (Node.js, GraphQL/REST, webhooks, payments) ✔ Magento / WooCommerce → Shopify migrations (data, redirects, SEO) ✔ Headless storefronts & PWAs (React, Next.js, Hydrogen, TypeScript) ✔ Performance optimization & CRO (Lighthouse, Core Web Vitals) ✔ Dashboards & data visualizations for commerce analytics (Plotly, Chart.js) ✔ Ongoing maintenance, testing, and developer handoffs with documentation Tech highlights: TypeScript, React 18, Next.js, Vite, TailwindCSS, Shadow Elements, CDN/UI, Radix, Node.js, Express, GraphQL, Shopify Liquid & APIs, Laravel / Magento 2, Supabase, Stripe, PayPal Why hire me: ✔ Deliver production-ready stores and apps with clear milestones and tests ✔ Deep eCommerce domain knowledge: checkout, subscriptions, and payments ✔ Fast communication, documented handoffs, and reliable maintenance How I work: 1) Share your store URL or project brief. 2) I’ll send a short audit and scoped estimate (free quick audit on small fixes). 3) I deliver in milestones with clear QA and rollback plans but very much open also to hourly retainer jobs

🦄 Why HIRE this PRO? 🌟 Upwork's Top 5% since 2023 💎 3000+ hours of Upwork Excellence 🔧 Tech-Savvy with Multitude of Tools Read what clients are saying about me 👇 "𝑨𝒏𝒅𝒓𝒆 𝒉𝒂𝒔 𝒃𝒆𝒆𝒏 𝒈𝒓𝒆𝒂𝒕 𝒕𝒐 𝒘𝒐𝒓𝒌 𝒘𝒊𝒕𝒉 𝒐𝒗𝒆𝒓 𝒕𝒉𝒆 𝒑𝒂𝒔𝒕 12 𝒎𝒐𝒏𝒕𝒉𝒔, 𝒉𝒊𝒔 𝒂𝒕𝒕𝒆𝒏𝒕𝒊𝒐𝒏 𝒕𝒐 𝒅𝒆𝒕𝒂𝒊𝒍 𝒂𝒏𝒅 𝒂𝒃𝒊𝒍𝒊𝒕𝒚 𝒕𝒐 𝒑𝒊𝒄𝒌 𝒕𝒉𝒊𝒏𝒈𝒔 𝒖𝒑 𝒒𝒖𝒊𝒄𝒌𝒍𝒚 𝒉𝒂𝒔 𝒃𝒆𝒆𝒏 𝒈𝒓𝒆𝒂𝒕." "𝑨𝒏𝒅𝒓𝒆 𝒄𝒐𝒏𝒔𝒊𝒔𝒕𝒆𝒏𝒕𝒍𝒚 𝒅𝒆𝒍𝒊𝒗𝒆𝒓𝒔 𝒉𝒊𝒈𝒉-𝒒𝒖𝒂𝒍𝒊𝒕𝒚 𝒘𝒐𝒓𝒌, 𝒂𝒏𝒅 𝑰 𝒂𝒎 𝒂𝒍𝒘𝒂𝒚𝒔 𝒄𝒐𝒏𝒇𝒊𝒅𝒆𝒏𝒕 𝒊𝒏 𝒕𝒉𝒆 𝒓𝒆𝒔𝒖𝒍𝒕𝒔 𝒉𝒆 𝒑𝒓𝒐𝒅𝒖𝒄𝒆𝒔." "𝑯𝒊𝒈𝒉𝒍𝒚 𝒓𝒆𝒄𝒐𝒎𝒎𝒆𝒏𝒅𝒆𝒅! 𝑻𝒆𝒏 𝑺𝒕𝒂𝒓𝒔 𝒊𝒇 𝑰 𝒄𝒐𝒖𝒍𝒅!" Sounds like the 𝙏𝙃𝙀 𝙈𝙄𝙎𝙎𝙄𝙉𝙂 𝙋𝙄𝙀𝘾𝙀 in your business puzzle? I know YOUR TIME is important, I summarized a digestible summary of where clients fill me in to bridge their crucial business gaps 👇👇👇 📚 𝙂𝙚𝙣𝙚𝙧𝙖𝙡 𝙍𝙚𝙨𝙚𝙖𝙧𝙘𝙝 Whether it's diving deep into data, navigating the vast internet, cracking academic challenges, or deciphering market trends, I'm your go-to research wizard. ● 𝐺𝑜𝑜𝑔𝑙𝑒 𝑆𝑐ℎ𝑜𝑙𝑎𝑟 ● 𝑀𝑒𝑛𝑑𝑒𝑙𝑒𝑦 𝑎𝑛𝑑 𝑆𝑐𝑜𝑝𝑢𝑠 ● 𝐺𝑜𝑜𝑔𝑙𝑒 🤝 𝙉𝙚𝙚𝙙 𝙨𝙤𝙢𝙚 𝙋𝙚𝙧𝙨𝙤𝙣𝙖𝙡 𝘼𝙨𝙨𝙞𝙨𝙩𝙖𝙣𝙘𝙚? Look no further. From scheduling meetings to managing your social media presence, planning your travels, and keeping your calendar in shipshape, I've got your back. ● 𝐺𝑜𝑜𝑔𝑙𝑒 𝑊𝑜𝑟𝑘𝑠𝑝𝑎𝑐𝑒 𝑎𝑛𝑑 𝑀𝑖𝑐𝑟𝑜𝑠𝑜𝑓𝑡 𝑂𝑓𝑓𝑖𝑐𝑒 ● 𝑆𝑙𝑎𝑐𝑘 ● 𝐴𝑠𝑎𝑛𝑎 ● 𝐺𝑜𝑜𝑔𝑙𝑒 𝑀𝑒𝑒𝑡, 𝑍𝑜𝑜𝑚 ● 𝐶𝑎𝑙𝑒𝑛𝑑𝑙𝑦 🤖 𝙏𝙖𝙨𝙠 𝙊𝙥𝙩𝙞𝙢𝙞𝙯𝙖𝙩𝙞𝙤𝙣 AI-powered multitasking is my secret weapon. I streamline tasks, automate repetitive processes, and optimize workflows for peak efficiency. ● 𝐺𝑜𝑜𝑔𝑙𝑒 𝑆𝑐𝑟𝑖𝑝𝑡𝑠 (𝐴𝑢𝑡𝑜𝑚𝑎𝑡𝑖𝑜𝑛) ● 𝑍𝑎𝑝𝑖𝑒𝑟 ● 𝐶ℎ𝑎𝑡𝐺𝑃𝑇 ● 𝑃𝑦𝑡ℎ𝑜𝑛 📂 𝙈𝙖𝙣𝙖𝙜𝙞𝙣𝙜 𝙮𝙤𝙪𝙧 𝙙𝙤𝙘𝙪𝙢𝙚𝙣𝙩𝙨? Might come across as boring, but not to this PRO. From scanning and editing to constructing databases and crafting forms, I bring order to the paperwork chaos. ● 𝐺𝑟𝑎𝑚𝑚𝑎𝑟𝑙𝑦 ● 𝑆𝑚𝑎𝑙𝑙𝑃𝐷𝐹 ● 𝐺𝑜𝑜𝑔𝑙𝑒 𝑊𝑜𝑟𝑘𝑠𝑝𝑎𝑐𝑒 ● 𝑀𝑖𝑐𝑟𝑜𝑠𝑜𝑓𝑡 𝑂𝑓𝑓𝑖𝑐𝑒 📧 𝙀𝙢𝙖𝙞𝙡 𝙊𝙪𝙩𝙧𝙚𝙖𝙘𝙝 I'm not just an email expert; I'm your email ace. Building lists, cleaning them up, and scraping data from databases - consider it done. ● 𝐴𝑝𝑜𝑙𝑙𝑜.𝑖𝑜 ● 𝑆𝑛𝑜𝑣.𝑖𝑜 ● 𝐻𝑢𝑛𝑡𝑒𝑟 💌 𝙋𝙚𝙧𝙨𝙤𝙣𝙖𝙡𝙞𝙯𝙚𝙙 𝙀𝙢𝙖𝙞𝙡 𝙀𝙣𝙜𝙖𝙜𝙚𝙢𝙚𝙣𝙩 Personalized email content? Check. Crafting catchy one-liners for email copy? You got it. Turning CTAs into irresistible click magnets? Absolutely. Researching prospects? It's my jam. ● 𝐺𝑟𝑎𝑚𝑚𝑎𝑟𝑙𝑦 ● 𝐻𝑢𝑛𝑡𝑒𝑟.𝑖𝑜 ● 𝑆𝑛𝑜𝑣.𝑖𝑜 ● 𝐿𝑖𝑛𝑘𝑒𝑑𝑖𝑛 🔄𝙁𝙞𝙡𝙞𝙥𝙞𝙣𝙤-𝙀𝙣𝙜𝙡𝙞𝙨𝙝 𝙏𝙧𝙖𝙣𝙨𝙡𝙖𝙩𝙞𝙤𝙣? With fluency in both Filipino and English, I'm here to help you smoothly bridge language gaps for your business. Whether you need documents translated or culturally-sensitive adaptations, you can count on me. ● 𝑂𝑡𝑡𝑒𝑟.𝑎𝑖 ● 𝐷𝑒𝑠𝑐𝑟𝑖𝑝𝑡 🛠️ 𝘾𝘼𝘿 𝘿𝙧𝙖𝙛𝙩𝙞𝙣𝙜 & 𝙀𝙣𝙜𝙞𝙣𝙚𝙚𝙧𝙞𝙣𝙜 𝙎𝙚𝙧𝙫𝙞𝙘𝙚𝙨 From creating technical drawings to 2D CAD drafting, 3D CAD modeling, and structural analysis, I'll bring your engineering projects to life. ● 𝑂𝑛𝑠ℎ𝑎𝑝𝑒 ● 𝑆𝑜𝑙𝑖𝑑𝑊𝑜𝑟𝑘𝑠 ● 𝐴𝑢𝑡𝑜𝐶𝐴𝐷 📊 𝙋𝙧𝙤𝙟𝙚𝙘𝙩 𝙈𝙖𝙣𝙖𝙜𝙚𝙢𝙚𝙣𝙩 Project management, material takeoffs, cost estimation, and feasibility studies? Consider your engineering projects expertly managed. ● 𝑀𝑖𝑐𝑟𝑜𝑠𝑜𝑓𝑡 𝐸𝑥𝑐𝑒𝑙 ● 𝑅𝑎𝑛𝑓𝑎𝑏 🎨 𝙎𝙤𝙢𝙚 𝘿𝙚𝙨𝙞𝙜𝙣 𝙖𝙣𝙙 𝙑𝙞𝙙𝙚𝙤 𝙀𝙙𝙞𝙩? Whether it's removing backgrounds, creating eye-catching infographics, editing videos, or crafting compelling slides, I've got the creative touch. ● 𝐶𝑎𝑛𝑣𝑎 ● 𝐴𝑑𝑜𝑏𝑒 𝑃ℎ𝑜𝑡𝑜𝑠ℎ𝑜𝑝 Wrapped up in an 𝘼𝙇𝙇-𝙄𝙉-𝙊𝙉𝙀 Package, I'm an enthusiastic, multi-talented dynamo poised to jump in and simplify your business journey while enhancing its success. Ready to meet 𝙏𝙃𝙀 𝙈𝙄𝙎𝙎𝙄𝙉𝙂 𝙋𝙐𝙕𝙕𝙇𝙀 𝙋𝙄𝙀𝘾𝙀 that completes the 𝙥𝙞𝙘𝙩𝙪𝙧𝙚 𝙤𝙛 𝙮𝙤𝙪𝙧 𝙨𝙪𝙘𝙘𝙚𝙨𝙨? 🟢 If you're sold and think we're a good fit 💬 drop a personalized message and let me know! 📞 What time works best for you for a discovery call? "wink"