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Senior Embedded Systems Engineer | IoT Developer | Wearable Technology Specialist | PCB Design Expert Your Trusted Partner for End-to-End Embedded Solutions: Delivering Production-Ready Hardware and AI-Integrated Systems in Weeks, Not Months. With 5+ Years of Expertise and 50+ Successful Projects in Wearable Tech, Industrial IoT, and Custom PCB Design. **100% Job Success Score | Same-Day Response Guarantee ** My core expertise includes: - Custom PCB Design & Rapid Prototyping - Wearable Technology Development (Medical Devices, Fitness Trackers, Smart Textiles) - Low-Power Firmware Development (C/C++/Python) for ESP32, STM32, Raspberry Pi, nRF52840 - TinyML & Edge AI on Microcontrollers (TensorFlow Lite, Edge Impulse, Scikit-learn) - Industrial IoT & Wireless Connectivity (BLE, LoRa, Zigbee, Cellular) - Cloud Integration & Data Management (AWS IoT, Google Cloud, MQTT, REST APIs) I don't just code—I architect scalable, energy-efficient, intelligent embedded systems that drive real business value. 💡 What I Deliver: Comprehensive Full-Cycle Development ✅ 1. Wearable Technology & Medical Devices - FDA-Compliant Wearables (ECG Monitors, Fitness Trackers, Thermoelectric Coolers, Health Sensors) - Ultra-Low Power Optimization for 3x Extended Battery Life - Flexible PCB Designs for Comfortable, Durable, Wrist-Worn Devices - Biomedical Signal Processing with Real-Time Analytics and AI Integration ✅ 2. End-to-End IoT Solutions From Single-Node Sensors to Scalable Networks: - Firmware in C/C++/Python (Bare-Metal, RTOS, Linux-Based) - Secure Cloud Connectivity (AWS IoT, MQTT, WebSockets) - Custom Real-Time Dashboards for Data Visualization (Grafana, InfluxDB) ✅ 3. Custom PCB Design & Prototyping High-Performance, Manufacturable PCBs Tailored for: - Low-Power Wearables and Medical Devices - Industrial Sensor Nodes with IP67/IP68 Ratings - RF/Wireless Systems (BLE, LoRa, Cellular) Tools: Altium Designer, KiCad, Eagle, Fusion 360 Capabilities: - Multi-Layer Designs (4+ Layers) with Impedance Control - DFM/DFA Optimization for Seamless Mass Production - Rapid Prototyping via 3D Printing and CNC Milling ✅ 4. TinyML & Edge AI Deployment Machine Learning on Resource-Constrained Devices for: - Predictive Maintenance (Vibration, Thermal Anomaly Detection) - Smart Sensors (Voice Recognition, Motion Tracking, Environmental Monitoring, Biometrics) - AI-Enhanced Wearables for Real-Time Health and Fitness Analysis Tech Stack: TensorFlow Lite, PyTorch, Edge Impulse, Scikit-learn ✅ 5. Python for Embedded Systems Leveraging Python Beyond Firmware: - AI/ML Model Training & Deployment (TensorFlow, PyTorch) - Automated Testing Frameworks (PyTest, Robot Framework) - Data Analysis & Visualization (Pandas, Matplotlib) - Medical Device Validation and Clinical Testing Protocols 🚀 Proven Project Portfolio: From Concept to Market Launch 🏆 AI-Powered Sports Tracker (TinyML + ESP32) | $12,000 Budget Challenge: Accurate Real-Time Swing Analysis for Baseball Training Solution: Deployed CNN Model on ESP32 with 98% Accuracy and IR Beam Detection Integration Impact: Accelerated Product Launch by 3 Months, Boosting Client Competitiveness 🏆 Thermoelectric Wrist Cooler (Wearable Tech + PCB Design) Challenge: Efficient Cooling in Compact, Low-Power Form Factor Solution: nRF52840 MCU with Peltier Module, Custom Flexible PCB, and Thermal Management Impact: Extended Battery Life by 200%, Enabling All-Day Comfort for Users 🛠️ Technical Stack - Hardware: ESP32, Arduino, STM32 (U5/H7/F4), nRF52840, Raspberry Pi - Software: C/C++, Python (Embedded & ML), Rust - AI/ML: TensorFlow Lite, PyTorch, Edge Impulse, Scikit-learn - Cloud: AWS IoT Core, Google Cloud IoT, InfluxDB, Grafana - PCB Tools: Altium Designer, KiCad, Fusion 360, LTspice 🌟 Why Clients Choose Me for Embedded Systems, IoT, and Wearable Projects ⚡ One-Stop Solution Provider - Eliminate the Need for Multiple Specialists: I Handle Schematic Design, PCB Layout, Firmware, AI Integration, Cloud Setup, and Mobile Apps ⚡ Demonstrated Reliability - 100% On-Time Delivery Across 50+ Projects - Zero Failed Prototypes Through Rigorous Simulations and Testing - Clean, Documented Code with Git Version Control for Easy Maintenance ⚡ Exceptional Communication & Support - Same-Day Responses (Within 6 Hours) - Weekly Milestone Reviews with Video Demos and Progress Reports - Comprehensive Technical Documentation Included - 90-Day Post-Delivery Warranty with Ongoing Consultation 🔥 Ready to Bring Your Embedded Vision to Life? Schedule a FREE 30-Minute Strategy Session Today, Including: -Technical Feasibility and Risk Assessment -Customized Timeline with Milestone Deliverables -Tailored Technology Stack Recommendations -Cost-Saving Strategies and ROI Projections Available Now for New Projects—Guaranteed Working Prototype in 2-3 Weeks. 👉 Click "Invite to Job" or Message Me to Get Started!

I am a professional PCB Design Engineer with 6+ years of experience delivering production-ready hardware designs for commercial and industrial applications. I work on a wide range of PCB projects — from simple boards to complex multi-layer systems — with a strong focus on reliability, manufacturability, and performance. In addition to general PCB design, I have solid experience in Industrial IoT systems, including LTE/NB-IoT devices, RS485/CAN Bus communication, Battery Management Systems, RF Designs and low-power sensor nodes. 🔧 What I Can Help You With: Schematic & PCB design (2-layer to multi-layer) HDI Design as per Design Complexity and space contraints Hardware development from concept to production BOM creation & cost optimization (JLCPCB/LCSC ready) PCB redesign, debugging & performance improvement Prototyping & manufacturing support ⚡ Advanced Experience In: ESP32, STM32, Nordic (nRF52 series) LTE / NB-IoT (Quectel, Sequans, Ubox) RS485 / Modbus, CAN Bus communication Low-power design (battery & solar-based systems) Power supply design (buck/boost, LDOs) RF-aware layout & antenna considerations Track Record: Top Rated Plus Freelancer (Top 3% on Upwork) 100% Job Success Score 120+ completed projects 98% 5-star reviews $100K+ total earnings Tools I Use: Altium Designer EasyEDA (Standard & Pro) KiCad What You Can Expect: Clean, well-documented schematics Industry-standard PCB layout practices Design aligned with manufacturing requirements Clear communication and reliable delivery If you have an idea, existing design, or need improvements in your hardware, feel free to reach out I’ll be happy to discuss your project.

I’m Hamza a Biomedical Engineer with a passion for Embedded Systems, IoT, Electronics, and Robotics. I turn ideas into real, working prototypes and products. Whether it’s designing smart devices, building automation systems, or creating medical technology, I bring innovation to life. What I Do Best: Embedded Systems & IoT Experience with ESP32, NRF52, ATMEL, STM32, PSOC, PIC Work with Raspberry Pi, VisionFive (Linux Board), and Unihiker Programming Proficient in C/C++, Python, Java, MATLAB, JavaScript, and Flutter Connectivity & Communication Skilled in UART, I2C, SPI, MQTT, BLE, BLE Mesh, Sigfox, and Wi-Fi Hardware Design & Prototyping Specialize in PCB Design, 3D Modeling, and Product Prototyping GUI Development Develop Touchscreen Interfaces, E-Paper & TFT Displays, Web Dashboards, and Desktop Applications Work with LVGL, Tkinter, PyQt, and Kivy Framework IoT & Cloud Integration Experienced with AWS IoT, Firebase, ThingsBoard, and WebSocket-based real-time control Industrial IoT (IIoT) Expertise in CAN Communication, Factory Automation, and Smart Sensor Networks Remote Monitoring & OTA Updates Work with ESP-IDF OTA, BLE DFU, and Cloud-Based Device Management I’ve built industrial prototypes, smart sensors, automation systems, and medical devices, real-time data processing and device connectivity. If you need a reliable, high-quality solution, let’s make it happen! Let’s Collaborate!

✅I am a passionate, precise and results-oriented Embedded System Engineer with a focus on electronic systems with deep experience in all practical aspects of product design. I enjoy working on complex and diverse projects with different applications such as industrial, automotive, IoT, and medical sectors. ✅I have worked on projects like Autonomous Robot, Aviation Grade Projects, Gas Metering Devices, Healthcare related Devices, Industrial Grade Devices, Explosive Grade Electronics (Ex Zone, ATEX), etc. ✅Services: • Electronic/Hardware product design, including but not limited to system design, component selection, schematic drawing, PCB layout & routing, reviewing, and troubleshooting. • Prototyping, assembly and validation of boards with up to hundreds of SMD components with their tools and equipment. • Advising on project feasibility, cost estimations. • Arranging turnkey manufacturing, helping with scaling a prototype into mass manufacturing, and dealing with 3rd parties such as PCB plants, component suppliers, test laboratories, machining, and injection moulding shops. • Embedded software with C/C++, Verilog, and Firmware / Driver development. ✅In Hardware Designing I have expertise in following: • Multi-layer PCB design with up to 10 layers • Mixed signal design with high-speed interfaces such as Gigabit Ethernet, USB FS/HS, HDMI, DRAM, LVDS and others. • Analogue design with dedicated IC’s and discrete components. • Digital design with discrete logic gates, microcontrollers of any variety, and FPGA, CPLD, and System On Chip (Zynq 7010/7020) • Rendering of PCBs and assembled products for presentation purposes • Product / PCB Reverse Engineering or giving life to Obsolete Hardware ✅Hands on Experiece of Firmware development for following MCUs: • STM32 MCUs • nRF MCUs nRF52832, nRF52840, nRF9160 • Texas Instruments Wireless MCUs Sub-1 GHz and BLE • ESP32S1, ESP32S2, ESP32S3, ESP32C3 • Renesas M16/C63, Synergy S7G2 • Xilinx/Altera FPGA • Xilinx Zynq SoC • Xilinx/Altera CPLD ✅RTOS: • FreeRTOS • Zephyr • ThreadX • Micrium OS uC OS • TinyOS • RTX

Proven Embedded Systems Engineer with 4+ years in IoT and firmware development. Expert in ESP32, STM32, nRF, FreeRTOS, Zephyr. I am an enthusiastic and detail-oriented Embedded Systems & IoT Developer with hands-on experience in building low-power, real-time, and connected embedded products. I specialize in ESP32, STM32, nRF9160/nRF52, and have worked extensively with FreeRTOS, Zephyr RTOS, ESP-IDF, and embedded C/C++. My work includes designing and optimizing firmware for 𝗜𝗼𝗧 𝗱𝗲𝘃𝗶𝗰𝗲𝘀, 𝘀𝗲𝗻𝘀𝗼𝗿-𝗯𝗮𝘀𝗲𝗱 𝘀𝘆𝘀𝘁𝗲𝗺𝘀, 𝗟𝗧𝗘/𝗚𝗡𝗦𝗦 𝘁𝗿𝗮𝗰𝗸𝗲𝗿𝘀, 𝗕𝗟𝗘 𝘀𝗰𝗮𝗻𝗻𝗲𝗿𝘀, 𝘄𝗶𝗿𝗲𝗹𝗲𝘀𝘀 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗺𝗼𝗱𝘂𝗹𝗲𝘀, and 𝗶𝗻𝘁𝗲𝗿𝗿𝘂𝗽𝘁-𝗱𝗿𝗶𝘃𝗲𝗻 𝗿𝗲𝗮𝗹-𝘁𝗶𝗺𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. I have developed full embedded solutions involving 𝗽𝗲𝗿𝗶𝗽𝗵𝗲𝗿𝗮𝗹 𝗶𝗻𝘁𝗲𝗿𝗳𝗮𝗰𝗶𝗻𝗴, 𝗨𝗟𝗣 𝗮𝗻𝗱 𝗱𝗲𝗲𝗽-𝘀𝗹𝗲𝗲𝗽 𝗽𝗼𝘄𝗲𝗿 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻, 𝗠𝗤𝗧𝗧/𝗛𝗧𝗧𝗣 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻, 𝗰𝗹𝗼𝘂𝗱-𝗰𝗼𝗻𝗻𝗲𝗰𝘁𝗲𝗱 𝗱𝗲𝘃𝗶𝗰𝗲𝘀, and custom protocol handling. 𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐞𝐱𝐩𝐞𝐜𝐭 𝐟𝐫𝐨𝐦 𝐦𝐞: ✔ Clean, optimized, and well-structured firmware ✔ RTOS-based application development (tasks, queues, timers, interrupts) ✔ Professional communication and timely delivery ✔ IoT connectivity development ---------------------------------------------------------- 𝐌𝐲 𝐂𝐨𝐫𝐞 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 ---------------------------------------------------------- • Microcontrollers: 𝐄𝐒𝐏𝟑𝟐, 𝐒𝐓𝐌𝟑𝟐 (𝐒𝐓𝐌𝟑𝟐𝐋𝟒/𝐒𝐓𝐌𝟑𝟐𝐅𝟒), 𝐧𝐑𝐅𝟗𝟏𝟔𝟎, 𝐧𝐑𝐅𝟓𝟐 • Protocols: 𝐌𝐐𝐓𝐓, 𝐁𝐋𝐄, 𝐖𝐢-𝐅𝐢, 𝐋𝐓𝐄-𝐌/𝐍𝐁-𝐈𝐨𝐓, 𝐇𝐓𝐓𝐏, 𝐆𝐍𝐒𝐒, 𝐄𝐭𝐡𝐞𝐫𝐧𝐞𝐭 • Tools/SDKs: 𝐄𝐒𝐏-𝐈𝐃𝐅, 𝐒𝐓𝐌𝟑𝟐𝐂𝐮𝐛𝐞𝐈𝐃𝐄, 𝐙𝐞𝐩𝐡𝐲𝐫 𝐑𝐓𝐎𝐒, 𝐅𝐫𝐞𝐞𝐑𝐓𝐎𝐒, 𝐀𝐫𝐝𝐮𝐢𝐧𝐨 𝐈𝐃𝐄 • Build Systems: 𝐂𝐌𝐚𝐤𝐞, 𝐌𝐚𝐤𝐞𝐟𝐢𝐥𝐞 • Peripherals: 𝐔𝐀𝐑𝐓, 𝐒𝐏𝐈, 𝐈𝟐𝐂, 𝐂𝐀𝐍, 𝐑𝐒𝟐𝟑𝟐 • Languages: 𝐂, 𝐂++, 𝐄𝐦𝐛𝐞𝐝𝐝𝐞𝐝 𝐂, 𝐂#, 𝐏𝐲𝐭𝐡𝐨𝐧 If you're looking for a dependable Embedded Firmware Engineer who can turn your hardware into a robust, efficient, and production-ready embedded product — I’m here to help. Let’s work together and turn your ideas into Reality!

An experienced Embedded Systems Engineer with strong expertise in both Embedded Hardware and Software Development. With over 5 years of experience in the industry, I provide comprehensive development services ranging from hardware-level device drivers to advanced mobile/web applications, cloud, IoT solutions and end-to-end product design & development. What I Offer: 🔹 End-to-End Product Design & Development • Requirements gathering, system feasibility, architecture design, and implementation • Custom hardware & firmware solutions for IoT, industrial automation, and smart devices • System integration, optimization, and scalability 🔹 Embedded Systems & Firmware Development • Bare-metal C/C++, Driver & Application Development on platforms like STM32, NXP, ESP32, Nordic, and more • Frameworks & RTOS: FreeRTOS, Zephyr, ESP-IDF, Arduino, PlatformIO • Communication Protocols: SPI, I2C, UART, CAN, Modbus, MQTT, LoRaWAN, ZigBee, Bluetooth (BLE & Classic) • Wireless & IoT Technologies: WiFi, LoRaWAN, BLE, Ultra-Wide Band (UWB) 🔹 Embedded Linux & Single Board Computers • Linux application & driver development using Yocto, Buildroot, GStreamer, GTK, Qt • SBCs: Raspberry Pi, Beaglebone, Orange Pi, Nvidia Jetson, SiFive 🔹 Hardware Design & PCB Development • Hardware selection & analysis based on project requirements • PCB design using KiCAD 🔹 Consulting & Technical Support • Product feasibility studies, architecture reviews, technical documentation • Free initial 30-minute consultation to understand your project needs Why Choose Me? ✔ 3+ years of experience building robust and scalable embedded systems ✔ Deep expertise in embedded hardware, firmware, and real-time systems ✔ Hands-on experience across IoT, industrial automation, medical devices, and consumer electronics ✔ Focused on reliability, low-power design, and on-time delivery for production-grade solutions Let’s collaborate to turn your ideas into cutting-edge, reliable products. Feel free to reach out for a free initial consultation!