𝗠𝘆 𝗳𝗼𝗰𝘂𝘀 𝗶𝘀 𝗼𝗻 𝗿𝗲𝗮𝗹 𝘁𝗶𝗺𝗲 𝗲𝗱𝗴𝗲 𝗜𝗼𝗧 𝗱𝗲𝘃𝗶𝗰𝗲𝘀. 𝗜 𝗱𝗲𝘀𝗶𝗴𝗻 𝗰𝗶𝗿𝗰𝘂𝗶𝘁𝘀, 𝗹𝗮𝘆𝗼𝘂𝘁 𝗯𝗼𝗮𝗿𝗱𝘀, 𝗰𝗿𝗲𝗮𝘁𝗲 𝗽𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗲𝘀, 𝗮𝗻𝗱 𝘄𝗿𝗶𝘁𝗲 𝗳𝗶𝗿𝗺𝘄𝗮𝗿𝗲 𝗳𝗼𝗿 𝗘𝘀𝗽𝟯𝟮 𝗮𝗻𝗱 𝗦𝗧𝗠𝟯𝟮 𝗺𝗶𝗰𝗿𝗼𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗲𝗿𝘀 𝘄𝗶𝘁𝗵 𝗮𝗻 𝗲𝗺𝗽𝗵𝗮𝘀𝗶𝘀 𝗼𝗻 𝗻𝗲𝘁𝘄𝗼𝗿𝗸𝗶𝗻𝗴, 𝘀𝗲𝗻𝘀𝗼𝗿𝘀, 𝘃𝗶𝗱𝗲𝗼, 𝗱𝗶𝘀𝗽𝗹𝗮𝘆𝘀, 𝗮𝗻𝗱 𝗔𝗪𝗦 𝗜𝗼𝗧 𝗖𝗼𝗿𝗲 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀. The earnings you see in this account is for just myself. I do all my own work. My firmware approach is to write everything in C/C++. My components embrace the Active Object Pattern. I have found that this development technique is best for simple, extensible, and testable firmware. It takes extra time to development in this methodical style up front, but the great advantage is that you can still move at a predictable development rate when the project becomes larger and more complex. And we all know, that successful products invariably move to larger and more complex development requirements over time. I have a fondness for dual core processing and the non-blocking of tasks (threads). Additional steps are required in freeRTOS to correctly manage non-blocking dual core activity. I believe I understand those requirements. Every firmware project that I write is dual compliant even it is only runs on a single core processor. I believe that multicore processing will become more common in the future and projects should be made ready for this opportunity from the start. I am using Claude Code on all my new projects, but to be clear, AI hasn't completely taken over all design work just yet. This is progressive process where there will always be some judicious mix of machine and human interaction. Computers are really strong in seeing common mistakes and humans are very strong in seeing philosophical design strategies. I believe the best projects are going to emerge from a mix effort approach. And hopefully, these superior results will happen at a faster pace. IMPORTANT NOTE: I strongly believe that AI will not give you what you do not understand. I believe the tools look at your level of questioning and return just the level of increase that you are willing to pay for. How would I come to this conclusion? Because it talks to me in very high levels which I know the beginner would not follow. So, I suspect that only experts will get expert help or slightly beyond expert help. It is human nature to dismiss that which you do not understand. This is why I think that AI will mainly serve a supporting role. If you are firm entrenched in a low quality approach, I believe it is going to support you in that low quality approach - rather than risk losing you as a customer. As a native born American and educated in an US based ABET accredited engineering university, you might expect that I have an extremely deep understanding of the nuances in the English language. This skill is critical in writing good contextual guidance for LLMs (Large Language Models). I invite you to interview me. I look forward to meeting you. 𝗧𝗼𝗼𝗹𝘀: C/C++ freeRTOS VS Code Cadence OrCAD/Allegro KiCAD 𝗣𝗿𝗲𝘃𝗶𝗼𝘂𝘀 𝗧𝗼𝗼𝗹𝘀: Visual Studios (dot net C#, C++) MP LAB X (PIC 8-bit microcontrollers)

Professional Summary I am an electrical engineer with specialized in embedded system. I have an ability to designing embedded solution and create program for bare metal system.

With over 20 years of experience, I am a seasoned professional in embedded and IoT product development. My expertise spans sensor-based solutions, audio algorithm development, and cloud-based SaaS solutions using AWS, GCP, and Azure. I also have extensive experience with mobile applications, including BLE apps / hardware integration over BLE developed with Flutter, ReactNative, SwiftUI, Kotlin (native development ) too. I began my career as an Audio DSP firmware engineer, specializing in digital signal processing algorithms and filter design for multichannel audio decoders and encoders, building and optimizing them for multiple DSP chipsets. This foundation led me to technical leadership roles within offshore development centers and eventually into leading product development in IoT startups. Of late, I've focused on developing analytical solutions in the smart home, Industry 4.0, and health tech sectors using nRF52, STM32 and ESP32. My key contributions include solution architecting and algorithm design for these cutting-edge applications, including BLE-powered medical device solutions. I am a process-oriented professional with deep knowledge in audio compression, data encoding, DSP Filters and post-processing algorithms. My core technical skills include: - Proficiency in C, C++, Python and Assembly programming for optimizing algorithms on resource-constrained embedded platforms. I'm also well-versed in golang and node.js. - Designing and building cloud-based analytical IoT solutions for enterprise energy management, leveraging multiple services across AWS ( including AWS IoT Core, AWS Greengrass ), GCP, and IBM Cloud. - Extensive knowledge of the BLE stack, having developed mobile applications for diverse IoT solutions and BLE-based medical devices. - Hands on experience with all BLE profiles - LE Coded PHY, 1M, indoor positioning using Beacons, AoA etc. - Experience with MQTT-based solutions, including hardware - firmware integration, integration of the solution with custom cloud platforms and GCP / AWS IoT Core. - Experience building multiple medtech / healthcare solutions - involving hardware / firmware / mobile application integrated over Bluetooth ( BLE ) and cloud applications adhering to HIPAA. Also worked with FDA / 510(k) compliance processes. - Proficiency in LoRa technology, having built embedded applications for IoT solutions primarily using LoRa EU and US frequencies. My background in developing regulated medical devices and health tech solutions makes me the ideal candidate for your project. I have extensive experience architecting and implementing secure, HIPAA-compliant solutions that integrate hardware, firmware, and mobile applications over BLE. I've successfully navigated the complexities of FDA and 510(k) compliance processes, ensuring not only technical excellence but also regulatory adherence. My skills include developing robust BLE-based medical device solutions, building analytical cloud platforms, and optimizing firmware for performance and reliability. I can offer both the deep technical skills and the critical regulatory knowledge required to bring your innovative medical product to market safely and effectively. As a specialist in wireless communication protocols for IoT, I can provide the targeted expertise you need for your project. My extensive hands-on experience with the entire BLE stack—including AoA, LE Coded PHY, and indoor positioning with Beacons—allows me to tackle even the most complex integration challenges. I've developed numerous mobile applications that seamlessly integrate with BLE hardware, ensuring a smooth and reliable user experience. I am also highly proficient in LoRa technology, having built complete embedded applications for EU and US frequencies. Whether you need to optimize a high-performance BLE application or build a long-range LoRa network, I have the in-depth knowledge to deliver a top-tier solution. As you can see, I have over a decade of experience in leadership roles, having led cross-functional offshore teams, including managing groups of 20 or more engineers and QA professionals. I'm eager to take up the next Upwork project and contribute my skills / experience to a highly competitive team.

Worked with major industry leaders and proved as a creative visionary responsible for building powerful, innovative solutions through application of DSP knowledge and Embedded System expertise. • Conceived and productized SigmaStudio for SHARC - graphical programming support for SHARC processors • Architected, executed and productized 14 fixed-point Audio CODECs, 2 Image CODECs. • Designed more than 30 audio and image post processing, control system and communication algorithms. • Developed and supported software algorithm and system components for digital Radio. • Developed, integrated and participated in field trials of 4 major Automotive Amplifiers - Audio subsystem. • Proved and inventor and technologist responsible for managing high-energy development teams. • Awarded 2 US patents and 2 innovations disclosure in wide area of technologies. • Developed 12 Audio/Image CODECS, 10 Audio based systems, several audio post processing algorithms.

With over 5 years of experience delivering successful commercial projects, I specialize in bringing product ideas to life through creative and practical solutions. I develop electronic products from circuit design to firmware programming, IoT App development android/ios and system optimization, ensuring robust and efficient system performance. To transform your vision into reality, explore my services below, or connect with me to discuss your project. Services: ✅ Firmware and Hardware Development ✅ IoT Cloud Integration, APIs Integration ✅ Edge AI Development and Deployment ✅ Enabling MCU connectivity with Smart Sockets, Apps & Web-based Dashboards ✅ Sensor and Display Interfacing ✅ Smartphone App Development for seamless IoT Hardware Integration ✅ PCB Design and Prototyping ✅ Technical Documentation ✅ Troubleshooting, Upgrading and Optimizing existing Firmware/Hardware Why Hire Me? ✅ 100% Job Success Rate with 5+ years of experience ✅ Top-Rated on Upwork - Top 10% Talent ✅ 100% Client Satisfaction ✅ Affordable Pricing ✅ Long-Term Relationship ✅ Proven Track Record of Delivering High-Quality Projects ✅ Strong Problem-Solving Skills with a Focus on Reliability and Performance 🥇 Skills: • Programming: Embedded C, microPython, Verilog HDL, Java, Kotlin, Dart, C#, MATLAB • Simulation: NI Multisim, Proteus, Spice simulations, Wokwi, QEMU • Protocols: SPI, I2C, UART, CAN, Modbus, BACnet, Bluetooth (BLE), WiFi, Zigbee, HTTP & MQTT • PCB Design Tools: Altium Designer, KiCAD, EasyEDA, Autodesk Fusion 360 • Networking & Cloud Integration: AWS cloud, Arduino Cloud, Routing, Switching, Server configurations, OTA Updates, API Integration • EDGE AI: EdgeImpulse, TinyML, Tensorflow Lite • Embedded UI/Graphics Development: LVGL, Adobe Photoshop, Adobe Illustrator 🥇 Microcontrollers/Development and Controller Boards I've Worked with Extensively: • ESP32-S3, ESP32-Wroom, ESP32-CAM, ESP32-Wemos, ESP32-C3, ESP8266, NodeMCU • LILYGO and Waveshare ESP32-S3 developement boards (LVGL UI for TFT, Amoled or E-paper) • STM32 ( STM32F407VGT6, STM32F103C8, Nucleo C031, L031 ) • Nordic nrf52832, Nordic nrf52840 • Different Arduino Development boards (Arduino NANO, Arduino UNO, Arduino MEGA 2560) • RAMPS 1.4 Board for custom applications with NEMA 17 Stepper Motors • PIC16F and PIC18F series • ATmega16 and ATmega32 MCUs 🥇 Displays/Sensors/Actuators/Memory: • TFT 1.44" & 1.77" with ST7735, ST7789, TFT 2.4" with ILI9341 and touch, 1.28" Round TFT GC9A01, OLED 0.96", 16x2 LCD, Dot Matrix Displays MAX7219, 7-Segments, E-Paper display EDPiy, VFD displays and many more. • EEPROM, SDCards, USB and other storage options • MPU6050 and MPU9250 Gyroscope and Accelerometer • Different ADC, DAC, Decoders & Encoders, Rotary and Linear Encoder • Thermal Imager AMG8833 Module, Temperature Sensors • ESP8266/ESP32, NRF24L01 • Bosch BME280, BME680 sensors • HMC5883L Magnetometer, SW420 Vibration sensor • Capactive Touch Sensors, Thin-Film Pressure sensors • BMS (Battery Management Systems) for Li-Po and 18650 • Ethernet W5500 and ENC28J60 • RTC 3231, PCF8563 • RFID and NFC, PN532 and RC522 • Ultrasonic and Infrared Modules, LDR, PIR motion sensor • MQ series and MiCS 5524 Air quality monitoring sensors • Addressable RGB Led Strip (WS2812, Neopixel) • Servo, BLDC and Stepper Motors • and many more. 🎓 Academic Qualifications: • MS in Embedded Systems and IoTs • BS in Electrical (Electronics) Engineering 📚 Current Areas of Research: Embedded Linux Systems, Embedded Machine Learning, IoT Firmware Security

👋𝐇𝐢 𝐭𝐡𝐞𝐫𝐞! Looking for reliable electronics and hardware solutions? You’re in the right place. I’m a ⚡ Electrical & Electronics Engineer with 4+ years in 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐚𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 (𝐑&𝐃) at Ongshak and 1 year as a 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐫 at Modern Soft Tech. I specialize in turning innovative ideas 💡 into functional, high-quality hardware solutions 🔧 that deliver real results. 💼 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗼: 🖥 PCB Design & Layout – From schematic to manufacturing-ready designs 🤖 Embedded Systems Development – Arduino, ESP32, Raspberry Pi, and custom microcontrollers 🛠 Prototyping & Product Development – Turning concepts into working prototypes 🌐 IoT & Automation Solutions – Sensors, controllers, and smart systems 📊 Product Management & Consulting – Strategy, planning, and technical guidance throughout your project lifecycle 🚀 I combine technical precision with creative problem-solving to ensure projects are efficient, reliable, and production-ready. Communication is key, so I keep clients updated at every stage to exceed expectations. 🤝 Whether it’s a one-time project or ongoing support, I’m ready to collaborate and bring your ideas to life. 💬 Let’s create something innovative together!

🛠️ Whatever the system — I automate it, visualize it, and make it work better. No matter the scale or sector — from simple controls to complex integrated systems — I engineer and integrate intelligent solutions. From electrical and electronic schematics to PLCs, ECUs, VFDs, motion control, SCADA, MES, HMIs, dashboards, and even IoT-based systems — I turn complexity into clarity and functionality. Whether it’s controlling a process, driving a motor, building a system, monitoring performance, or enabling smarter decisions — I adapt to each project’s unique needs and can work on entire systems or individual components, including modification, programming, and troubleshooting. 1- Key Skills: - Automation Development - Process & Motion Control - PLC Programming - HMI & SCADA Systems - MES Development - Dashboards - IoT Integration - Electrical Schematics - Electronic Schematics 2- Tools & Technologies: - Siemens TIA Portal, Mitsubishi GX Works, SIMATIC Manager Step7, Schneider Unity Pro, RSLogix - WinCC, CITECT, Ignition, Node-RED - Eplan, AutoCAD - Arduino, ESP32 IDE - Matlab/Simulink, LabVIEW 3- Programming Languages: - Ladder Logic (LAD), FBD, SCL, STL, VB, Grafcet - C/C++, Python, SQL - HTML/CSS, JavaScript, Node.js If you’re looking for a dedicated engineer to automate your processes, troubleshoot complex systems, or develop custom control and visualization solutions — let’s connect!

I help companies design and deploy vision-guided robotic systems for precise industrial automation. With over four years of experience, I build complete robotic solutions that cover kinematics, CAD, ROS integration, and real-world deployment, including production-ready robotic assembly systems with sub-millimeter accuracy. My work focuses on practical and reliable automation. I have delivered robotic PCB assembly systems, vision-based motion control, compliant insertion using force sensing, and trajectory control for both industrial and custom robotic platforms. I am comfortable working from early concept and prototyping through to stable, maintainable systems that operate outside the lab. I typically work closely with clients to understand technical requirements, select appropriate sensors and hardware, design control and perception pipelines, and integrate everything into a robust ROS-based system. Clear communication, structured development, and realistic engineering decisions are central to how I work. Projects: - Vision-Based Robotic PCB Assembly Designed and deployed a vision-guided robotic assembly system for through-hole PCB components, achieving reliable insertion with ≥0.15 mm pin-to-hole clearance using stereo vision, force sensing, compliant control, and ROS. - Dual-Arm Robotic Assembly (ABB YuMi) Implemented motion planning, visual servoing, and compliant control for coordinated dual-arm assembly tasks in an industrial research environment. - Parallel Robot (Hexaglide) Kinematics and Control Developed forward and inverse kinematics, trajectory generation, and controller architecture for a 6-PUS parallel robot, including sensor fusion and CAD-based validation. - Mobile Robot for Glulam Pressing Conceptualized and designed a special-purpose mobile robot for glue laminated timber (Glulam) processing, including mechanical design and system layout using Autodesk Inventor. - Autonomous Driving with Imitation Learning Built a training environment in CARLA and implemented Generative Adversarial Imitation Learning (GAIL) to improve expert models for autonomous driving scenarios. Tech Stack: - Robotics & Control: ROS / ROS2, MoveIt, robot kinematics, trajectory planning, compliant control - Computer Vision: OpenCV, stereo vision, 3D triangulation, Intel RealSense, visual servoing - Programming: Python, C++, MATLAB - Simulation: Gazebo, CoppeliaSim, CARLA - Hardware & CAD: Autodesk Inventor, SolidWorks, sensors, load cells - Embedded & Tools: STM32, ESP32, Arduino, Linux, Docker, Git Feel free to reach out. I would be delighted to provide my insight. Thank you for your time and consideration!

I connect the embedded and desktop worlds by building reliable software that moves seamlessly between hardware, operating systems, and user‑facing applications. With 10+ years of hands‑on development, I specialize in solving complex technical problems across embedded systems, cross‑platform desktop apps, and hardware–software integration. Embedded: (C/C++ | C# | Python | Swift | Objecitve-C | JavaScript) - (Raspberry Pi | ESP32 | STM32 | Nordic nRF ) Worked on following technologies: -- Embedded / Linux: Raspberry PI (RPi), STM32, ESP32, Nordic nRF, FreeRTOS, Bluetooth LE, CMake, MQTT, OpenCAN, Modbus, RS232, SPI Desktop: (C# | C/C++ | Swift | Objective-C | Python ) - Windows Desktop Application (WinUI | AvaloniaUI | MAUI | UWP | WPF | WinForms) | MSI Installers | COM+ Excel/Word | MacOS Desktop Application (AvaloniaUI | Swift | Objective-C) Created application as scripts | command-line applications | add-ins | Windows services | Windows desktop application with or without installers. ~~ AvaloniaUI | WinUI | UWP | WPF | MAUI | WinForms ~~

I'm a Network & Embedded Systems Engineer with a degree in Computer Networks from the State University of Maranhão (UEMA). I help clients design, configure, troubleshoot, and optimize network infrastructure while also supporting embedded and IoT development projects. My expertise includes Cisco networking, Linux, EVE-NG, pfSense, Palo Alto firewalls, routing, switching, VLANs, VPNs, network security, and troubleshooting. I have built and tested enterprise-scale network labs to simulate real-world environments, allowing me to diagnose issues, validate configurations, and implement reliable solutions. I also work with Embedded Systems, including embedded Linux, microcontrollers, firmware development, and IoT solutions. I enjoy solving hardware-software integration challenges and continuously expanding my knowledge of modern embedded technologies. I can help with: Network design and implementation Cisco routing and switching VLAN, VPN, NAT, DHCP, DNS, and TCP/IP configuration Firewall deployment and security policies (pfSense, Palo Alto) Linux system administration Network troubleshooting and performance optimization Embedded systems and IoT development Technical documentation and lab validation I focus on delivering reliable, well-documented, and maintainable solutions. I communicate clearly, pay attention to detail, and keep clients informed throughout every stage of a project. Whether you need assistance with network infrastructure, security, or embedded systems, I'm committed to providing high-quality results that meet your requirements. Let's discuss how I can help with your next project.