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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 an Electronics Engineer with over 10 years experience in designing circuits and PCB for embedded systems from conception to realization. Systems prototyping is both my hobby and profession. I have helped clients in realizing the system they have conceived to their full satisfaction. In addition to designing the system, we can build the PCB in-house, design and print the enclosure, test and debug the system, and deliver them to you as a working prototype. Looking forward to working with you. Experienced with: - Nordic nRF52 devices (SEGGER Embedded) - BLE - Arduino(Atmel)/Microchip Microcontrollers, Flyport, Kinect - GPRS, GSM, Wi-Fi, Bluetooth, NFC, RFID, Zigbee, RF, RTC, Various Sensors (Accelerometer, Humidity, Temperature, etc.) - I2C, SPI, UART, USB, ADC, PWM, DAC, RS232 - EEPROM, Program Flash, External memory - Cryptographic Engine - Embedded C, Visual Basic, C#, C++, Python, SQL - Raspberry Pi - MatLab - Visual Studio - USB Systems - IOT Systems - OTA Firmware Upgrades - Android Applications for IOT and BLE - react-native - PC Programs and UI for Embedded Systems - Digital Signal Processing - Custom Encryption - Library Creation - Fusion360 PCB Design and Layout tools: - Altium Designer - Ultiboard - KiCad - Eagle In-house PCB Prototyping and Debugging: - 2-layer - Down to QFN Package Capable - 10mil Annular Ring - Min 7mil Trace Width - Tin Plated - Solder Masked - Plugged Vias

I am a Hardware & FPGA Engineer with 6+ years of industry experience, working hands‑on across the entire product development cycle—from schematic design and PCB layout to FPGA implementation, board bring‑up, and system‑level debugging. I help startups and engineering teams build reliable, manufacturable, and testable hardware—not just designs that work in simulation or temporarily on a lab bench. My focus is on creating hardware that integrates cleanly, scales well to production, and minimizes costly board re-spins and long debug cycles. **Core Expertise** ✅ Schematic Design (KiCad / Altium Designer) a. Digital circuits, power supplies, clocks, and high‑speed interfaces b. FPGA support circuitry (configuration, IO banks, JTAG, external memory, regulators) c. Microcontroller and single‑board computer (SBC) interfacing ✅ PCB Layout (Altium Designer) a. Signal integrity, power distribution networks (PDN), and clock routing b. Mixed FPGA + MCU designs c. Manufacturability, assembly, and test considerations ✅ Component Selection & BOM Support a. Availability, lifecycle status, and cost vs. performance trade‑offs b. Design decisions informed by supply chain realities **FPGA & Embedded Systems** ✅ FPGA Design & Bring‑Up a. Verilog / VHDL development b. RTL integration with custom hardware c. FPGA bring‑up, validation, and debugging d. Experience with Xilinx (Vivado), Intel/Altera (Quartus), and Lattice FPGA platforms ✅ Microcontroller & SBC Integration a. Arduino‑based systems for control, automation, and prototyping b. Raspberry Pi integration for higher‑level control, testing, and data handling c. FPGA‑to‑MCU and FPGA‑to‑SBC interfaces ✅ Interfaces & Protocols a. SPI, I²C, UART, PWM, GPIO b. Custom digital interfaces tailored to system requirements **Bring‑Up, Debug, & Production Support** ✔ Board bring‑up and validation ✔ Design revisions, ECOs, and production support ✔ Root‑cause analysis across hardware, FPGA logic, and firmware boundaries **My Engineering Approach** ✔ Clean, well‑structured schematics with clear signal naming and hierarchy ✔ PCB layouts optimized for power integrity, clock stability, and I/O reliability ✔ Logical partitioning between FPGA, MCU, and SBC domains ✔ Well‑documented RTL and hardware design decisions ✔ Practical trade‑offs based on cost, component availability, and production constraints I design PCBs that are easy to assemble, easy to debug, and easy to revise, while ensuring FPGA, microcontroller, and Raspberry Pi systems integrate predictably and robustly—helping teams move from prototype to production with confidence. If you need one engineer who understands PCBs, FPGAs, and embedded control systems, I can help bridge the gap between hardware, logic, and system‑level integration.

I'm a Registered Electronics Engineer. Has work experience in CEBU MITSUMI INC. a Japanese Semi-Conductor Company base in MRI Special Economic Zone Sabang, Danao City Cebu, Philippines as a Design Engineer for Process Automation. I have been in this profession for almost 10 years. Has experience in using pneumatic and electro-mechanical actuators and cylinders. Has used AC/DC motors and Stepper motors. Used EAGLE Cadsoft, TARGET3001, and other CAD for PCB design. Used and familiar with Arduino, Microchip,ESP8266 chips and platform. For about 3 years as a freelance in and out of Upwork(formerly Elance), have been satisfying more than 30 clients (more than 70 projects). Currently working as Operation Engineer in a broadcasting company in the Philippines and looking to improve my skills through applying on various job opportunities here in UPwork.

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.

Full-Stack Embedded Systems and Product Development Engineer Electronics Engineer with extensive experience in embedded systems, integration, and product development. Passionate about designing and implementing efficient hardware-firmware solutions, with a strong foundation in electrical design, real-time systems, and integration. Highly adaptable and fast-learning, with a proven ability to deliver innovative, scalable, and reliable engineering solutions. Core Competencies: HARDWARE DESIGN: -Schematic capture: Digital, Analog, and Power Electronics -PCB Layout: 1–10 layers (Signal, Power, Mixed-signal) -Component selection, BOM generation, and manufacturing documentation -Microcontroller Platforms: Arduino, AVR, PIC, ARM Cortex-M3/M4 (32-bit), NodeMCU -Control Algorithm FIRMWARE & EMBEDDED SYSTEMS: -Embedded C/C++ firmware for ESP32, ARM (STM32), TI, NXP, Atmel, Microchip PIC, and Arduino -RTOS: FreeRTOS on ESP32 and STM32 (Modular firmware development, Task scheduling, Inter-task communication) -Wireless communication: Bluetooth Low Energy (BLE), WiFi modules -Python scripting: Data Science, Machine Learning, and IoT (ESP32/ESP8266) ELECTRICAL DESIGN SOFTWARE: -PCB & Circuit Design: Altium Designer, Eagle CAD, KiCad -Simulation: NI Multisim, PSpice, TINA-TI, Proteus, Electronics Workbench -IDEs & Tools: Atmel Studio, MPLAB X IDE, CCS C Compiler, PICkit™ 3, Code Composer Studio, Arduino IDE, LabVIEW -PLC Software: LogixPro, GX Developer, Keyence KV Studio MECHANICAL & DOCUMENTATION TOOLS: -3D & 2D CAD: Siemens NX CAD, AutoCAD, SketchUp -Technical Illustration: Arbortext IsoDraw, Adobe FrameMaker PROJECT & RESOURCE MANAGEMENT: -Tools: JIRA, Trello, GitHub, Primavera P6 -Procurement & Sourcing: Digi-Key, Mouser, RS Components -Part Lifecycle & Compliance: Silicon Expert, Teamcenter PLM ENGINEERING SERVICES OFFERED -Technical Reports: Feasibility Studies, Obsolescence Reviews, Research & Investigation -BOM Optimization: Alternate sourcing, cost-effective component selection -Product Development: -PCB & Schematic Design -Embedded Systems & Automation -2D Drafting & 3D CAD Modeling -Internet of Things (IoT) Solutions -RTOS-based Modular Firmware (ESP32, STM32 using FreeRTOS) -Cost Analysis & Component Research INTERESTS: -Real-Time Operating Systems (RTOS) and Embedded Firmware Architecture -Electric Vehicles and Smart Charging -PCB Layout and High-Speed Design -Automation Systems -Embedded AI: Machine Learning on Edge Devices -Data Science for Engineering Applications -CAD Design and Product Development My goal is to provide : • Best effort and quality for every project at a reasonable rate ($). • Free servicing facility even after completing the project. • Finish the project with the best quality within the shortest possible time.