I built and design the PCB, write the firmware, model the enclosure, and build the IoT app that controls it. Products I have built are live on Google Play, the App Store, and in the hands of US/EU customers right now. I'm a 𝐒𝐞𝐧𝐢𝐨𝐫 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 & 𝐈𝐨𝐓 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 with a Master's in Embedded Systems and a Bachelor's in Computer Engineering. I take products end-to-end from PCB design, firmware, enclosure, IoT mobile app, to cloud, so you get one Partner accountable for the whole stack instead of coordinating four of them. 𝐔𝐬𝐞 𝐂𝐚𝐬𝐞𝐬 𝐈 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐈𝐧: ➙ Consumer electronics, smart home devices, connected appliances ➙ Audio and DSP products, Audio/Sound Devices, real-time processing ➙ Stepper motor, CNC Machines, 3D Printers, Stepper Motors, Driver, DC Generators, Energy Harvesting ➙ Smart RGB light control Systems, Hall Effect Systems ➙ Industrial IoT, Home automation, Modbus/CAN gateways, CAN telematics ➙ Medical devices, wearables, monitoring systems, Automotive ➙ Asset tracking, smart agriculture, LoRaWAN sensor networks 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 𝐌𝐢𝐜𝐫𝐨𝐜𝐨𝐧𝐭𝐫𝐨𝐥𝐥𝐞𝐫𝐬 & 𝐒𝐨𝐂𝐬: STM32, ESP32 (S2/S3, A1S Dual-Core, ESP8266), Arduino (Nano, Mega, Mini, Pro, Uno), Nordic nRF52840/nRF5340, AVR (ATmega, ATtiny), PIC16/PIC18/PIC32, Raspberry Pi, Cortex-M0/M0+/M3/M4/M7/M33, Cortex-A53/A72/A76, Cortex-R4/R5/R52, Teensy 4.1, FPGA 𝐅𝐢𝐫𝐦𝐰𝐚𝐫𝐞: Embedded C/C++, MicroPython, ARM Assembly, Verilog/SystemVerilog, VHDL. FreeRTOS, Azure RTOS (ThreadX). Bare-metal, HAL, and LL driver development. STM32CubeIDE, ESP-IDF, PlatformIO, Arduino, CMake, GCC Arm toolchain. 𝐏𝐂𝐁 𝐃𝐞𝐬𝐢𝐠𝐧: Expertise in 2-12 layer boards, rigid & flex, and HDI designs using Altium Designer, KiCad, and Eagle, with a focus on high-speed signal integrity, impedance matching, thermal design, high-current routing, and RF layout including Pi-network antenna tuning. 𝐌𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐚𝐥/𝐄𝐧𝐜𝐥𝐨𝐬𝐮𝐫𝐞 𝐃𝐞𝐬𝐢𝐠𝐧: Proficient in SolidWorks, Fusion 360, and AutoCAD for injection-molding-ready designs, SLA/FDM 3D printing, IP65/IP67/IP68 waterproofing, and advanced thermal management. 𝐏𝐞𝐫𝐢𝐩𝐡𝐞𝐫𝐚𝐥𝐬 & 𝐁𝐮𝐬𝐞𝐬: I2C, SPI, UART, CAN (CANOpen, J1939), USB HID, PCIe, DMA, PWM, ADC/DAC, I2S/PDM audio, EEPROM/Flash. 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐯𝐢𝐭𝐲: Wi-Fi, BLE 5.x, LoRa/LoRaWAN, NFC/RFID (MiFare, ISO14443), LTE-M, NB-IoT, 4G LTE, u-blox GNSS (M8/M10), RS485, RS232, Modbus RTU/TCP, Ethernet. 𝐈𝐨𝐓 & 𝐂𝐥𝐨𝐮𝐝: MQTT/MQTTS, HTTPS, WebSockets, TLS 1.3, JSON-RPC. AWS IoT Core, Azure IoT Hub, Google Cloud IoT, Blynk, ThingsBoard, Tuya. 𝐀𝐩𝐩𝐬 & 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞𝐬: Flutter, React Native, React.js, Vue.js, Node-RED, Firebase, PWAs. Qt for Embedded, PyQt5. OLED, TFT, IPS, E-Paper, LED Matrix, 7-Segment, rotary encoders. 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: Secure Boot, AES, ECC, OTA updates. Design-for-certification for CE, FCC, EMI/EMC, ESD (IEC 61000-4-2), UL, ISO 9001/13485. 𝐌𝐲 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡: ➙ Clear weekly progress updates, often including demo videos, schematics, firmware commits, and simulation results. ➙ Version-controlled deliverables (Git) and meticulously documented, clean code. ➙ Transparent communication regarding progress, challenges, and potential risks. ➙ Strong research-driven approach focused on solving technically difficult problems efficiently. ➙ Open to starting with a paid pilot project before committing to a larger scope. 𝐋𝐞𝐭'𝐬 𝐓𝐚𝐥𝐤 𝐈𝐟 𝐘𝐨𝐮 𝐍𝐞𝐞𝐝 A reliable partner to design a new product from scratch, rescue a stalled hardware project, and control systems, port firmware between MCU families, add IoT/cloud connectivity to an existing device, or build the mobile app and backend that makes your hardware actually useful. Invite me to your Job or send me a message with your product concept, current stage, and what's blocking you.

FPGA Design Engineer and ASIC Frontend Specialist with a track record of elegant solutions to complex problems. With a PhD in Electrical Engineering, I leverage my deep understanding of digital design to deliver innovative projects, notably in DSP systems and software-defined radios, using state-of-the-art Xilinx FPGA technology. Ready to bring expertise and precision to your venture.

Top 10% of all talent on Upwork (as per Upwork's Talent program). I help startups, product teams, and hardware innovators turn ideas into reliable, production-ready embedded systems - from schematic and PCB design to low-level firmware and SoC bring-up. On the hardware side, I bring hands-on experience in electronics design and PCB development. I specialize in embedded firmware development close to the hardware, working on ARM-based systems where timing, stability, and deep debugging matter. I’ve developed bare-metal and RTOS-based firmware, written custom peripheral drivers (SPI, UART, Timers, DMA, GPIO), and supported post-silicon bring-up and validation. What I Can Help You With PCB design & electronics engineering – schematics, board bring-up support. Embedded firmware development (C) – bare-metal & RTOS (Zephyr). Peripheral driver development with DMA and concurrency awareness. SoC / MCU bring-up and post-silicon debugging. Hardware debugging using JTAG/SWD, Segger RTT, logic analyzers, protocol traces. Firmware build & debug setup – CMake, ARM toolchains, VS Code / Eclipse. Platforms & Tools KiCAD, Altium, ARM Cortex-M, ARM GCC, VS Code, Eclipse, Code Composer Studio, J-Link, Wireshark, Zephyr RTOS, CMake, Saleae, Git, etc. Why Me? Strong hardware–software co-design mindset. Clear communication and structured problem-solving. Ability to debug complex issues at signal, register, and firmware level. Ownership from concept to bring-up to stabilization.

Hi there! I'm a Senior Electronic Engineer with advanced knowledge of digital design and experience in embedded systems with FPGA, DSP and Microcontrollers. I have 15+ years of experience, working in different industries such as Aerospace, IoT (Internet of Things), IC (Integrated Circuits) and Audio products, participating in multidisciplinary teams. Among the tasks I performed throughout these years were the following: - Team Leadership - Project Management - Digital Signal Processing - Electronic / Circuit Design - High-speed Digital Design on FPGAs (VHDL/Verilog) - Embedded Software Development (C/C++ programming) - PCB Layout - MAIT (Manufacturing, Assembly, Integration and Test) - Validation in Laboratory - Writing of Technical Documentation I love working on complex and challenging designs. You can trust that I will give my best to deliver a work that exceeds your expectations. My working hours are Monday to Friday from 8:00 am to 7:00 pm (GMT -3).

Being a professional Electrical Engineer I am here to provide my expert services to help you in following fields. #STM32 RDP1 Exploitation & Firmware Extraction • STM32 RDP1 Unlocking & Firmware Dumping – Extract firmware from locked STM32 microcontrollers. • Reverse Engineering & Code Recovery – Recover lost or inaccessible firmware. • Security Analysis & Testing – Identify vulnerabilities in STM32 protection mechanisms. • Technical Consultation – Advice on embedded security and protection strategies. • Supported STM32 Series: STM32F0, STM32F1, STM32F2, STM32F3, STM32F4, STM32F7, STM32G0, STM32G4, STM32H7, and more. # System Analysis and Design Languages (Embedded System): I have been working in the field of Embedded system by using many professional tools. Embedded C programming for micro-controllers like: • STM32 based Arm cortex projects. • ESP32 based projects. • Software define radios(SDRs) based projects. • Arduino based programming for embedded system. • Verilog/VHDL for FPGA digital design. • 8051 Micro controllers • PIC Micro controller • System Verilog for digital design and verification. • MSP430 Micro controllers • NRF Series - Nordic Semiconductor • LoRa WAN communication modules • Simulink designs • PCB design and schematic validation using Altium Designer, KiCad, OrCAD, DipTrace # Software design languages: • C/C++ for simulation / functional validation. • Embedded C for microcontroller • Python • MATLAB • Verilog and VHDL # Article/Technical Content Writing I can provide guidance and help you as per your requirements in all areas of writing including blog writing, content writing, technical writing, Article writing. I can provide guidance and give you my mentoring and tutoring services as per your requirements in all areas of writing including • Blog writing • Content writing • technical writing • Article writing.

With over a decade of experience in the tech industry, both in South Korea and Silicon Valley, I’ve established a reputation for overcoming technical challenges with innovative solutions. My passion for engineering, ignited before high school, drives me to excel in both professional and personal projects. I specialize in hardware and software design, particularly in wearable and portable bio-signal instrumentation, including Brain-Imaging devices utilizing fNIRS, EEG, and Ultrasound for medical and research purposes. What I Can Offer: Project Management & Research: - Expertise in high-level project management and research with a strong foundation in hardware and firmware integration for efficient project execution. - Successfully managed and completed projects for various clients, ensuring timely delivery and high-quality results. Hardware Design: - Proficient in circuit design, component selection, electrical schematics, and PCB layout using Altium Designer. - Deliverables include comprehensive manufacturing files (Gerber files, NC drill, pick and place, assembly diagrams, 3D prints, 3D STEP models, and electrical schematics). - Experienced in analog and digital design, RF, high-speed design, and microcontrollers. - Knowledgeable in various technologies and protocols: SPI, I2C, UART, USB, CAN, RS-485, Ethernet, Bluetooth, WiFi, etc. - Designed hardware for over 20 successful projects, many of which are currently being sold in the market. - Developed wearable and portable bio-signal instrumentation for brain-imaging devices, contributing to advancements in medical and research fields. Prototyping: - Cost-effective prototype manufacturing through established relationships with manufacturers in China, Europe, and the US. - Equipped with extensive tools: multimeters, oscilloscopes, logic analyzers, vector network analyzers, USB protocol analyzers, power supplies, digital electronic loads, and soldering equipment. - Produced high-quality prototypes for clients, leading to successful product launches. Firmware Development: - Over 10 years of coding experience in C/C++ and extensive firmware development. - Proficient in ARM Cortex microcontrollers (STM32, Nordic, Ambiq Apollo), ESP32, Raspberry Pi, Arduino ARM, TI, NXP, Atmel, PIC, FPGA firmware (VHDL, Verilog), and production-quality firmware delivery. - Specialized in ST and Nordic microcontrollers for efficient and quick firmware development. - Developed firmware for a wide range of applications, including medical devices, consumer electronics, and industrial automation. AI/Machine Learning: - Expertise in computer vision and machine learning project architecture/design (Tensorflow, Keras, PyTorch). - Skilled in embedded image processing solutions (Jetson Orin, Raspberry Pi, Intel Movidius, OpenVINO). - Capable of training models for specific purposes, managing dataset collection/preparation, and deploying applications on GCP (Google Cloud Platform) with NVIDIA GPU experience. - Developed and deployed machine learning models for object detection, shape recognition, and action recognition, enhancing product functionality and user experience. Software Development: - Competent in developing software tools for debugging, testing, and manufacturing across Linux/Windows/Mac platforms. - Created user-friendly GUIs and tools to streamline development and testing processes. Wireless Technologies: - Proficient in Bluetooth and BLE-enabled devices, 2.4GHz radio transmitters, and custom analog and digital radio systems. - Developed wireless communication systems for various applications, ensuring reliable and efficient data transmission. Manufacturing Services: - Offering contract manufacturing services to deliver finished products ready for market, ensuring high quality and reliability. - Collaborated with manufacturers to optimize production processes and reduce costs. Professional Integrity: - My rates reflect my extensive experience and knowledge, and I only bill for meaningful project advancement, ensuring transparency and value for my clients. - Committed to delivering high-quality results and providing ongoing support to clients after project completion.

Seeking an expert to transform your idea into a market-ready product? Clients hire me for turnkey hardware and firmware solutions. Beyond PCB design, I handle sourcing, PCBA, and rigorous testing. I don't just send files; I build, debug, and deliver high-quality proven prototypes. I help startups, entrepreneurs, and engineering teams take products from concept → prototype → production. I support the full process, including product research, circuit design, schematic capture, PCB design, firmware development, prototype manufacturing, assembly, testing, debugging, validation, and production handoff. ---- Why clients hire me ---- ✅ I turn complex ideas into working products I take rough concepts, difficult requirements, or incomplete designs and turn them into practical, tested hardware. ✅ I stay involved until the design works I do not stop at schematics or PCB layout. I support bring-up, debugging, rework, firmware, validation, and design improvements so clients are not left with non-working prototypes. ✅ I handle compact and difficult PCB designs I am often brought in for very compact PCBs, custom PCB shapes, high-density layouts, RF boards, high-speed boards, analog signal chains, and power electronics, where careful design choices are critical. ✅ I reduce the client’s workload My team and I can support PCB manufacturing, component sourcing, assembly, firmware, testing, and small-batch production, so clients do not need to coordinate multiple vendors. ✅ I work well with technical teams I can join ongoing projects quickly, support existing hardware and firmware teams, and help move development forward without slowing things down. ---- Services I offer ---- 🔹 Complete product development — idea to prototype to manufacturing 🔹 PCB design — professional, compact, production-ready layouts 🔹 PCB review and verification — schematic review, layout review, design improvements 🔹 Circuit design and simulation 🔹 Firmware development — microcontrollers, processors, and Linux-based systems 🔹 Hardware bring-up, debugging, testing, and validation 🔹 Fixing boards that do not work properly 🔹 Prototype assembly and small-batch manufacturing 🔹 3D CAD support / enclosure coordination ---- PCB design expertise ---- I design PCBs across a wide range of domains, including: ▪ High-speed PCB design ▪ High-density / compact PCB design ▪ RF PCB design ▪ Analog PCB design ▪ Power electronics PCB design ▪ IoT hardware design ▪ Custom-shape and space-constrained PCB layout ▪ Multi-board systems and interconnect design I focus on clean layout, manufacturability, reliability, and real-world performance. ---- Firmware and embedded systems ---- I provide professional firmware development as a standalone service or as part of a full product build. Platforms and families I work with include: ▪ STM32, ESP32 / ESP-IDF, Arduino ▪ TI C2000 / Code Composer Studio ▪ PIC / Atmel / SAMD ▪ FPGA / SoC systems ▪ Linux-based embedded systems ▪ Single-board computers, microprocessors, and controllers Languages: ▪ C / C++ ▪ MicroPython ▪ JavaScript / embedded scripting ▪ Assembly when needed ---- Tools and software ---- PCB Design: ▪ Altium Designer ▪ KiCad ▪ EasyEDA Embedded / Firmware: ▪ STM32CubeIDE ▪ ESP-IDF ▪ Arduino IDE ▪ Code Composer Studio Simulation / Engineering Tools: ▪ LTspice ▪ Proteus ▪ HFSS ▪ Multisim ▪ LabVIEW GUI / Display Frameworks: ▪ LVGL ▪ TouchGFX ---- Interfaces, protocols, and technologies ---- Interfaces: ▪ SPI ▪ I2C ▪ UART ▪ CAN ▪ I2S ▪ USB ▪ Ethernet ▪ MIPI-CSI / MIPI-DSI ▪ LVDS ▪ FMC ▪ Memory interfaces Wireless / Connectivity: ▪ WiFi ▪ BLE ▪ LoRa ▪ GPS / GNSS ▪ LTE / GSM ▪ NFC ▪ UWB Protocols: ▪ MQTT ▪ HTTP ▪ FTP ▪ TCP/IP ▪ UDP ▪ SSL/TLS Operating Systems: ▪ FreeRTOS ▪ TI-RTOS ▪ Embedded Linux ---- Specializations ---- 🔸 Power Electronics — DC-DC converters, MPPT, motor control, BMS, power supplies 🔸 RF Design — 2.4 GHz to 77 GHz, radar systems, filters, mixers, antennas 🔸 High-Speed Design — USB, LVDS, FMC, memory and fast digital interfaces 🔸 Analog Design — signal conditioning, ADC interfacing, filtering, measurement circuits 🔸 Embedded Product Development — concept to tested prototype to production 🔸 Testing and Debugging — hardware issues, prototype failures, bring-up and validation ---- Testing, validation, and manufacturing support ---- One of the biggest advantages I offer is hands-on validation. My team and I support: ▪ In-house bring-up and testing ▪ Prototype debugging and rework ▪ Small-batch PCB assembly ▪ Automatic pick-and-place assembly ▪ Reflow soldering ▪ Component sourcing and fabrication coordination Let’s talk If you need help with PCB design, embedded systems, firmware development, RF design, power electronics, debugging, prototype testing, or taking a product to production, I’d be glad to discuss your project.

I've developed and deployed 20+ production embedded & IoT products across healthcare, agriculture, wearables, security, automotive, and industrial devices. I design connected products end-to-end including firmware, multi-layer PCB, enclosure, and IoT dashboards, from concept to MVP to mass production. As a Senior Embedded Systems Engineer with a background in Electrical Engineering, I help startups, entrepreneurs, and engineering teams design, develop, and launch connected products and stay accountable for the result from the first schematic to the production line. 𝐖𝐇𝐀𝐓 𝐈 𝐎𝐅𝐅𝐄𝐑: ➛ Firmware Development: Secure, optimized C/C++ firmware for various Microcontrollers and SBCs. ➛ Hardware Development & Integration: Multi-layer PCB designs in Altium/KiCad with driver integration. ➛ Enclosure Design: 3D-printable prototypes through production-ready CAD. ➛ IoT Web & Mobile Dashboards + Cloud Integration: Web dashboards and mobile apps integrated with BLE/Wi-Fi/LoRa IoT devices. 𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐒 𝐈'𝐕𝐄 𝐒𝐇𝐈𝐏𝐏𝐄𝐃 • Frostmed: Vaccine Transport Cooler (ESP32) - safe transit with live temperature visibility. Mass production. • SmartBolt: Smart Door Lock (nRF52840) - NFC tap-to-unlock, BLE app control, months on one battery. • Palm: Smart Thermal Waste Bin (ESP32) - Firmware, PCB, App & cloud fleet management. • NAPL: Groundwater Oil Filtration System (ESP32) - extracts oil from contaminated sites, solar-powered, unattended. • LoRaWAN Smart Call Device: emergency call button that works where cellular and Wi-Fi don't. 𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄: • MCUs & SBCs: ESP32, STM32, nRF51/52/53/91, PIC, Raspberry Pi, Jetson Nano, Linux-based edge devices • Real-Time Operating Systems: FreeRTOS, Zephyr for deterministic, multi-threaded applications • ARM Processors & SoCs: Cortex-M & Cortex-A - bare-metal & RTOS firmware, Linux kernel porting, board support and driver development • Programming Languages: C, Embedded C, C++, MicroPython, Python, TinyML, Shell scripting, TCL • PCB Design: Altium Designer, KiCad, EasyEDA - schematic capture, multi-layer layout, high-speed design, 3D modeling, and prototyping • Networking & Communication Protocols: UART, SPI, I2C, CAN, Modbus, RS-485, BLE, MQTT, LoRaWAN, LoRa, HTTP/HTTPS, TCP/IP, WebSockets for sensor networks and cloud/device communication • Driver Development: Custom low-level drivers for GPIO, ADC, DAC, PWM, Timers, RTC, AC metering ICs, Watchdog, DMA, and memory-mapped IO • Sensor Integration: Environmental (BME280, SHT31), IMU/Motion (MPU6050, BMA400, ADXL345), Biosignals (ECG/bioimpedance, heart rate), Power Monitoring (INA219, ACS712), GPS/GNSS (u-blox), Time-of-Flight, Hall Effect • Cellular & GNSS Modules: SIM7600X (4G LTE), SIM800/900 series, Quectel, u-blox - AT command stacks, GNSS parsing, SMS/Call/HTTP, and fallback logic • Display & HMI: TFT (ILI9341, ST7789), OLED (SSD1306), E-Ink, Addressable LEDs (WS2812B, SK6812 RGBW) - LVGL, Qt, SquareLine Studio • IoT Web Dashboard & Mobile App Development: Flutter-based and custom web/mobile dashboards for remote monitoring and data sharing across devices • IoT Platforms & Cloud Services: AWS IoT Core, Azure IoT Hub, ThingsBoard, Blynk, EMQX, Mosquitto • Embedded Toolchains & IDEs: PlatformIO, ESP-IDF, STM32CubeIDE, nRF Connect SDK, VS Code - version control with Git & GitHub • Security & Updates: TLS/SSL, AES-encrypted OTA with rollback, secure bootloaders, CRC integrity 𝐔𝐒𝐄 𝐂𝐀𝐒𝐄𝐒 𝐈 𝐒𝐏𝐄𝐂𝐈𝐀𝐋𝐈𝐙𝐄 𝐈𝐍: 🔹 Medical & Consumer Devices: wearables, health monitors, smart appliances 🔹 Industrial Automation: sensor/actuator control, live system monitoring 🔹 Smart Agriculture: environmental sensing, LoRa field networks 🔹 Automotive & Energy: CAN systems, GPS tracking, smart metering, BMS 🔹 IoT Connectivity: secure cloud gateways, OTA update pipelines 🔹 Prototyping: POC development, research kits, lab platforms 𝐖𝐇𝐘 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 𝐌𝐄? ➛ Proven production experience - shipped products, not just prototypes. ➛ Milestone-driven development with clear planning and documentation. ➛ You own everything: schematics, firmware repo, Gerbers, STEP files. ➛ Straight answers - I flag requirements that will bite you at certification or manufacturing before you pay for them. ➛ Available post-launch for scaling, upgrades, and long-term support. Send me your product idea, spec, or half-finished prototype, and I'll reply with a concrete assessment of what it takes to ship it.

An 𝗘𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰𝘀 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 (𝟮𝟬𝟭𝟭), I develop 𝗵𝗶𝗴𝗵-𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗺𝘂𝗹𝘁𝗶-𝘁𝗵𝗿𝗲𝗮𝗱𝗲𝗱 𝗵𝗮𝗿𝗱𝘄𝗮𝗿𝗲-𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 (𝗖, 𝗖++, 𝗩𝗲𝗿𝗶𝗹𝗼𝗴) for 𝗪𝗶𝗻𝗱𝗼𝘄𝘀 and 𝗟𝗶𝗻𝘂𝘅 across the 𝗗𝗲𝘀𝗸𝘁𝗼𝗽, 𝗙𝗶𝗿𝗺𝘄𝗮𝗿𝗲, 𝗛𝗮𝗿𝗱𝘄𝗮𝗿𝗲 and 𝗪𝗲𝗯 domains. I also design 0.6u to 0.18u CMOS Integrated Circuits. I contributed to 𝗕𝗠𝗪 𝗔𝗗𝗖𝗔𝗠, 𝗠𝗮𝗴𝗻𝗮 𝗠𝗙𝗞𝟱 and vehicle bus encoding/ decoding pipeline projects for 𝗔𝗨𝗗𝗜 and 𝗖𝗔𝗥𝗜𝗔𝗗. I have worked with multiple 𝘀𝗲𝗻𝘀𝗼𝗿 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 (vision), 𝗱𝗮𝘁𝗮 𝗯𝘂𝘀𝗲𝘀 (UART, SPI/DSPI/QSPI, I2C, USB, Ethernet, TFT-LCD, LPDDR-2), 𝗺𝗶𝗰𝗿𝗼𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗲𝗿𝘀 (8051-based, RISC-V) and 𝗽𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 𝗲𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁𝘀 (FreeRTOS, QEMU). I've also programmed 𝗦𝗽𝗮𝗿𝘁𝗮𝗻-𝟲 𝗙𝗣𝗚𝗔𝘀 in 𝗩𝗲𝗿𝗶𝗹𝗼𝗴 and designed 𝗮𝗻𝗮𝗹𝗼𝗴, 𝗺𝗶𝘅𝗲𝗱-𝘀𝗶𝗴𝗻𝗮𝗹, 𝗱𝗶𝗴𝗶𝘁𝗮𝗹 and 𝗻𝗲𝗮𝗿-𝗥𝗙 𝗰𝗶𝗿𝗰𝘂𝗶𝘁𝘀 (800 MHz) in 𝟬.𝟲𝘂-𝟬.𝟮𝟱𝘂 𝗖𝗠𝗢𝗦 technologies. 𝗖𝗮𝗿𝗲𝗲𝗿 𝘀𝘂𝗺𝗺𝗮𝗿𝘆 - 𝟮𝟬𝟬𝟱-𝟮𝟬𝟬𝟴: Web development (classic ASP, PHP, JS, Flash, SQL, HTML5, CSS3) - 𝟮𝟬𝟭𝟭-𝟮𝟬𝟭𝟵: Mixed-signal Semiconductor IC design (0.6u - 0.25u CMOS) - 𝟮𝟬𝟮𝟬-𝗽𝗿𝗲𝘀𝗲𝗻𝘁: Multi-platform Desktop applications: C, C++ (multi-threaded), wxWidgets, Qt, ROS For desktop applications, I use the tech stack: C, C++, Qt5-6, wxWidgets, GTest/ GMock and CMake. On a previous full-time job, extended C++, ROS and ADTF based AUTOSAR (ARXML) software components for ADAS analysis in the automotive industry. (SOME/IP, TAPI DBC, CAN(FD)). Have hands-on experience with LiDAR point cloud data. Currently working on a Semiconductor EDA tool in C++ and wxWidgets as a personal project. My recent professional work includes open source browser customization in C++ (Firefox, Palemoon, CEF) and the development of custom windows credential providers. 𝗗𝗲𝘀𝗸𝘁𝗼𝗽: - C - C++ - C# - Python - wxWidgets - Qt(5, 6) - Win32 - ROS (1, 2) - Identity (and Access) Management (IAM/ IdM) - Single Sign On (SSO) - OAuth - OpenID Connect - JWT/ JWKS - Chromium Embedded Framework (CEF) - Firefox browser customization - Palemoon browser customization - Custom Windows Credential Provider development - Multi-threading - WinUSB-based USB driver - Raw data packets manipulation - Hardware communication -- Serial -- USB -- GSM Modem -- PLC via ABNet API -- Basler GigE LineScan camera using Pylon 5 SDK 𝗪𝗲𝗯: - ASP 3.0/ classic - PHP core/ pure (4, 5, 7, 8) - Javascript core/ pure/ vanilla - (X)HTML 4/5 (W3C Validated, Section 508/ VPAT) - CSS 2/3 - Macromedia Flash (4, 5, 8) Actionscript (1.0, 1.1, 2.0) - MS Access, My SQL, MS SQL Server (custom queries and stored procedures) - cURL - SMS gateways - cHTTP (PHP-based auto login/ navigator to a website) - mPDF, tcPDF 𝗛𝗮𝗿𝗱𝘄𝗮𝗿𝗲: - 0.25u CMOS (Analog design): -- Logic gates -- JK-type Phase Detector -- Charge Pump -- Delay Locked Loop (DLL) - Verilog: -- DDR-2 SDRAM controller -- SPI controller -- I2C controller -- Ethernet MAC -- USB 2.0 Full speed device controller -- Custom ISA 8-bit microprocessor core - QEMU (custom device emulation) 𝗙𝗶𝗿𝗺𝘄𝗮𝗿𝗲: - FreeRTOS 𝗖𝗼𝗺𝗽𝗹𝗲𝘁𝗲𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 (𝗺𝗮𝗷𝗼𝗿): - Authentik Windows Credential Provider (CEF) - High-frequency (~2400 fps) quad sensor data plotter (Win32 API, C) - Barton Chart scan processor and barcode reader for data extraction (C#, image processing) - Document upload and processing platform (medical) using PHP, javascript and LibreOffice - SMS-based Poll/ Quiz website (PHP, two-way SMS gateway) - Job portal (ASP classic/ 3.0)

A versatile Embedded Systems & IoT Expert I bring a unique blend of expertise in Embedded systems, PCB High Speed designs and IoT app development. - Embedded Systems Expert (C/C++) - STM32, Arduino, ESP32 boards and Raspberry PIs - PCB Mixed Signal and High Speed Design - FPGAs, Verilog/VHDL - Assembly Language (x86, MIPS, Arm/Thumb) - ROS Robotics, Drones, IMUs applications - Native and Cross platform BLE/IoT Mobile App development With hands-on experience in creating advanced projects like drones, robotic arms, IMU gloves and developing path planning and navigation systems utilizing depth cameras for autonomous robots, I excel at integrating cutting-edge technology to solve complex problems. My skills extend to app development for Android, iOS, and web platforms, IoT apps and Sensor Integration ensuring comprehensive solutions for diverse needs. Let's collaborate to transform your ideas into a Reality!