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🏆 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.

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

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)

Expert Executive Virtual Assistant | Tech, Admin & Automation Specialist Are you looking for a highly skilled and tech-savvy Executive Virtual Assistant who can handle administrative tasks, data analysis, financial tracking, project management, and tech solutions? Look no further! As a Computer Engineer with a Master’s in IT and a 3rd-year PhD student in Technology Management, I bring a unique combination of technology, automation, and management expertise to optimize your business operations efficiently. My background includes developing embedded systems, automating workflows, managing databases, and handling financial and data-driven projects. 🔹 My Expertise: ✅ Administrative & Executive Support: Email & calendar management, document preparation, CRM handling. ✅ Data Analysis & Financial Management: Spreadsheet automation, financial tracking, reporting, and budgeting. ✅ Embedded Systems & IoT Development: Projects using Arduino, ESP8266/ESP32, and Raspberry Pi for automation, smart systems, and real-time data collection. ✅ Web & App Development: Developing secure web applications, dashboards, and automation tools for businesses. ✅ Project Management & Research: Organizing workflows, streamlining operations, and supporting academic & technical research. ✅ Microsoft & Google Suite Expert: Proficient in Excel automation, Google Sheets scripting, data visualization, and cloud-based collaboration tools. 🔹 Why Work With Me? ✔ Tech-Savvy & Innovative: I develop cutting-edge solutions for process optimization and automation. ✔ Highly Efficient & Detail-Oriented: Ensuring accurate and timely task execution. ✔ Problem-Solver & Critical Thinker: Experienced in handling complex projects with strategic solutions. ✔ Strong Communication & Confidentiality: A professional who values integrity, discretion, and seamless collaboration. Let’s work together to automate, optimize, and elevate your projects or business operations! 🚀 🔹 Available for short-term or long-term projects. Ready to assist you today! 💬 Let’s discuss your project! Message me now. 😊