Embedded Systems Engineer | IoT | PCB Design | Firmware Development | Product Prototyping Embedded Systems Engineer with over 10 years of hands-on experience developing IoT products, industrial automation systems, and custom embedded electronics from concept to working prototypes. I help startups and companies transform ideas into reliable products by combining hardware design, embedded firmware development, and system integration with a strong focus on manufacturability and real-world deployment. Hardware Design Analog & Digital Circuit Design Schematic Capture & PCB Layout ESP32, STM32, AVR, PIC, ARM Cortex-M Power Management & Battery Systems Sensor Integration Industrial Interfaces RF & Wireless Integration Design for Manufacturing (DFM) Tools: Altium Designer KiCad EasyEDA Embedded Firmware Embedded C / C++ ESP-IDF Arduino Framework STM32CubeIDE FreeRTOS Experience with: Wi-Fi Bluetooth Low Energy (BLE) MQTT TCP/IP HTTP/HTTPS OTA Updates UART SPI I2C CAN RS485 Modbus I build modular firmware architectures that simplify maintenance and future product expansion. IoT & Product Development IoT Device Development Smart Home Systems Industrial Automation Remote Monitoring Data Logging Cloud Connectivity Sensor Networks Prototype Development Product Validation What I Can Help You Build Custom IoT Devices Industrial Controllers Smart Sensors Data Acquisition Systems Embedded Monitoring Systems Robotics Electronics Wireless Embedded Products Proof of Concept (PoC) Production-Ready Prototypes Recent Project Experience Commercial IoT Controller with BLE Wi-Fi Provisioning Central HVAC Embedded Controller Industrial Monitoring & Automation Systems ESP32 & STM32 Based Products RFID & Wireless Communication Systems Power Monitoring Solutions Embedded Sensor Platforms Custom PCB & Firmware Development My Engineering Approach I don't just write firmware or design PCBs. I help define the right architecture from the beginning to reduce redesign, simplify manufacturing, and build products that are reliable, maintainable, and ready for future expansion. Whether you're starting from an idea or improving an existing design, my goal is to deliver practical engineering solutions, not just code.

With over 5 years of experience in the industry, I provide comprehensive end-to-end product design & development services ranging from hardware-level device drivers to advanced mobile/web applications, cloud, IoT solutions and . 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) (positioning/localization) 🔹 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? ✔ 5+ 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!

I develop embedded electronic systems that combine Digital Signal Processing, power electronics, circuit and PCB design, firmware, motor control, and machine learning—from low-frequency audio and vibration analysis, digital filters, FFT, feature extraction, and pattern recognition to inverters, converters, motor drivers, and real-time microcontroller implementation. My expertise includes: • Embedded systems development using STM32, ESP32, AVR, nRF52, and Arduino-compatible platforms • Low-frequency audio and vibration signal processing • IIR/FIR digital filter design, FFT analysis, cross-correlation, feature extraction, and noise reduction • Pattern recognition, anomaly detection, condition monitoring, and predictive maintenance • Machine-learning model development using neural networks and support vector machines • Power electronics, including inverters, DC-DC converters, battery and supercapacitor chargers, and BMS • BLDC, stepper, servo, and closed-loop motor-control systems • Analog circuit design, sensor interfacing, data acquisition, schematic design, and PCB layout I focus on delivering reliable, practical, and manufacturable solutions with clear communication and thorough documentation.

I’m a highly skilled and detail-oriented PCB Design Engineer with over 3 years of experience in designing robust, efficient, and cost-effective printed circuit boards for various industries including consumer electronics, automotive, medical devices, and industrial automation. I specialize in converting complex circuit ideas into manufacturable and reliable PCB layouts. From schematic capture to final Gerber generation and fabrication-ready documentation, I ensure every step is precise and optimized for performance and manufacturability. 🔹My Expertise Includes: * PCB Design (2 to 16+ Layers) * Schematic Capture & Hardware Architecture * Embedded Hardware Design (STM32, ESP32, Nordic nRF, AVR, PIC) * Analog, Digital & Mixed-Signal Circuit Design * High-Speed PCB Design (USB, Ethernet, HDMI, DDR, PCIe) * RF PCB Design & Impedance Controlled Routing * Power Supply Design (Buck, Boost, LDO, Battery Management) * AC-DC & DC-DC Power Electronics * IoT Device Development * Sensor Interface Design * Industrial Control Electronics * Signal Integrity & Power Integrity * EMI/EMC Optimization * Thermal Management * High Current PCB Design * Differential Pair Routing * Controlled Impedance Design * Design for Manufacturing (DFM) * Design for Assembly (DFA) * Component Selection & Lifecycle Management * Prototype Development & Manufacturing Support 🔹PCB Design Services *Electronic Product Development *Circuit Design & Schematic Capture *PCB Layout & Routing *Hardware Design Review *Existing PCB Modification *Reverse Engineering *PCB Migration Between CAD Tools *Cost Optimization & BOM Engineering *Manufacturing Documentation *Prototype Validation Support 🔹Tools I Use: * Altium Designer * KiCad * Eagle * OrCAD / Cadence Allegro * EasyEDA * LTspice / PSpice / Multisim (for simulation) * AutoDesk Fusion 360 (for 3D enclosure fit checks) 🔹Deliverables You Can Expect: * Complete schematic and PCB layout files * BOM (Bill of Materials) * Gerber, drill, and pick-and-place files * 3D PCB renders * Assembly drawings and fabrication documentation * Technical support during prototype and production phases 🔹Industries *Industrial Automation *Consumer Electronics *IoT Products *Medical Electronics *Automotive Electronics *Smart Home Devices *Wearable Electronics *Power Electronics *Robotics *Communication Systems 🔹Why Choose Me? ✅ 100% custom and tailored designs ✅ Fast turnaround and clear communication ✅ Focus on reliability, quality, and cost optimization ✅ NDA-friendly and IP protection guaranteed Whether you're developing a new electronic product, improving an existing design, or preparing hardware for manufacturing, I can help transform your concept into a reliable, high-quality, production-ready PCB solution.

I am an Embedded IoT Engineer specializing in delivering complete end-to-end solutions—from custom firmware and PCB design to mobile app integration and cloud connectivity. I’ve worked across a wide range of microcontrollers including ESP32, STM32, and nRF52, and have hands-on experience with BLE, Wi-Fi, LoRa, NB-IoT, and 4G/5G technologies. My expertise spans applications in smart healthcare, industrial automation, asset tracking, and consumer electronics. Whether it's rapid prototyping or scaling to production, I bring a practical, full-stack approach to building reliable and connected systems.

* Expert-level Embedded C/C++ development for MCU and Embedded Linux platforms. * Strong expertise in Embedded System Architecture, system design, and technical leadership. * Extensive experience with ARM Cortex-M/A, STM32, NXP i.MX, Nordic, ESP32, TI, and Qualcomm platforms. * Advanced knowledge of RTOS and Embedded Linux: FreeRTOS, Zephyr, Yocto, Buildroot, Linux Kernel, Device Drivers. * Experienced in BSP bring-up, bootloader development, OTA/FOTA, secure boot, and system optimization. * Strong experience in Automotive and Industrial Embedded Systems development. * Deep understanding of CAN/CAN FD, LIN, UART, SPI, I2C, Modbus, Ethernet, TCP/IP , BLE, and MQTT. * Hands-on experience with IoT, Edge AI, connected devices, and cloud-integrated embedded systems. * Experienced in debugging, hardware-software integration, and system optimization. * Experience leading engineering teams and managing embedded projects from concept to production.

I am an Engineer specializing in Embedded Systems Design, Firmware Development and IoT product development. I work from concept to final prototype, covering circuit design, firmware programming, hardware integration, testing and performance optimization. I have practical experience working with STM32, ESP32, Raspberry Pi and custom boards. My focus is always on building systems that are reliable, efficient and ready for real-world use. What I Do • Firmware development in C, C++ and Python for real-time and low-power embedded applications • Microcontroller programming for STM32 (HAL and LL), ESP32 (ESP-IDF and Arduino), AVR and Raspberry Pi • IoT and wireless communication setup using Wi-Fi, BLE, LoRa, Z-Wave and cloud APIs such as MQTT and REST • Debugging using logic analyzers, oscilloscopes and JTAG/SWD to solve hardware and firmware issues • Reverse engineering and performance optimization for improving stability and reducing power consumption • Prototype development, board bring-up and functional validation before scaling to production Technical Skillset MCUs: STM32, ESP32/ESP-IDF, AVR, RP2040, Raspberry Pi Languages: C, C++, Embedded C, Python Protocols: I2C, SPI, UART, CAN, Modbus, RS485 Wireless: Wi-Fi, BLE, LoRa (SX126x and LLCC68), Z-Wave Tools: PlatformIO, STM32CubeIDE, ESP-IDF, KiCad, Logic Analyzer, JTAG/SWD Debug Why Work With Me I build embedded products that work, not just code that compiles.

⭐ I am an Embedded Systems Engineer with 5+ years of experience designing embedded hardware, production-ready PCBs, firmware, and IoT devices for industrial, wireless, sensor, and battery-powered applications. I support projects from system architecture and component selection through schematic design, PCB layout, firmware development, prototyping, testing, and manufacturing handoff. ➤ 𝗘𝗫𝗣𝗘𝗥𝗧𝗜𝗦𝗘 ✔ Embedded systems architecture ✔ PCB design and electronic hardware development ✔ Embedded firmware in C and C++ ✔ IoT and wireless device development ✔ Low-power and battery-powered systems ✔ Industrial controllers and sensor nodes ✔ Hardware debugging, testing, and optimisation ➤ 𝗣𝗖𝗕 & 𝗛𝗔𝗥𝗗𝗪𝗔𝗥𝗘 𝗗𝗘𝗦𝗜𝗚𝗡 ✔ Schematic capture and circuit design ✔ Single-layer, double-layer, and multilayer PCB layout ✔ Analog, digital, mixed-signal, RF, and power electronics ✔ Component selection and BOM optimisation ✔ Signal integrity, grounding, thermal, and EMI/EMC considerations ✔ DFM, DFA, and DFT review ✔ Gerber, BOM, CPL, fabrication, and assembly files ➤ 𝗘𝗠𝗕𝗘𝗗𝗗𝗘𝗗 𝗙𝗜𝗥𝗠𝗪𝗔𝗥𝗘 ✔ ESP32, STM32, Nordic nRF52 and nRF53 ✔ Embedded C and C++ ✔ FreeRTOS and Zephyr ✔ UART, SPI, I²C, CAN, RS-485, USB, and Modbus ✔ Sensor, display, motor, and communication integration ✔ Low-power modes, debugging, and hardware bring-up ✔ Real-time control and data-acquisition systems ➤ 𝗜𝗢𝗧 & 𝗪𝗜𝗥𝗘𝗟𝗘𝗦𝗦 ✔ Bluetooth Low Energy and Wi-Fi ✔ LoRa and LoRaWAN ✔ LTE-M and cellular IoT ✔ MQTT, HTTP, and HTTPS ✔ Remote monitoring and wireless sensor systems ✔ IoT gateways and connected industrial devices ➤ 𝗧𝗢𝗢𝗟𝗦 ✔ Altium Designer ✔ KiCad ✔ EasyEDA ✔ STM32CubeIDE ✔ ESP-IDF ✔ nRF Connect SDK ✔ PlatformIO ➤ 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 / 𝗗𝗢𝗠𝗔𝗜𝗡 ✔ IoT & Smart Devices ✔ Wearables Devices ✔ Industrial Automation ✔ RF & Wireless Systems ✔ Embedded Control Systems ✔ Sensor & Monitoring Systems ➤ 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗥𝗘𝗖𝗘𝗜𝗩𝗘 ✔ Complete hardware and firmware source files ✔ Organised schematics and PCB layouts ✔ Manufacturing-ready PCB documentation ✔ Clear technical documentation ✔ Prototype testing and debugging support ✔ Support from concept through production handoff ⭐ Share your requirements, block diagram, schematic, PCB files, firmware, or prototype details. I will review the project, identify the main technical risks, and recommend a practical development approach. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 Embedded Systems, PCB Design, Firmware Development, Embedded Firmware, Hardware Design, Circuit Design, ESP32, STM32, Nordic nRF52, Altium Designer, KiCad, EasyEDA, Embedded C, C++, FreeRTOS, Zephyr, IoT Hardware, BLE, Wi-Fi, LoRaWAN, LTE-M, MQTT, Power Electronics, Multilayer PCB, Signal Integrity, DFM, Industrial Automation, Sensor Systems, Hardware Prototyping 𝗛𝗮𝘀𝗵𝘁𝗮𝗴𝘀 #EmbeddedSystems #PCBDesign #FirmwareDevelopment #EmbeddedFirmware #HardwareDesign #ESP32 #STM32 #NordicnRF #AltiumDesigner #KiCad #IoTHardware #PowerElectronics #IndustrialAutomation #EmbeddedC #ProductDevelopment

I help startups and engineers turn electronic ideas into working, production-ready prototypes, not just schematics or code. With 10+ years of experience in embedded systems and PCB design, I build hardware that manufactures correctly, assembles cleanly, and works the first time. I work across the full hardware stack from firmware and embedded systems to PCB layout, mechanical integration, and real-world prototyping. I also have extensive experience with PCB fabrication workflows through manufacturers like JLCPCB, allowing me to design with manufacturing and assembly constraints in mind from the start. What I Can Help You With Embedded Systems and Firmware Development I develop reliable embedded systems using STM32, ESP32, Arduino, Microchip, and similar platforms. • Firmware development in C/C++ and Python • Sensor integration and hardware interfacing • UART, SPI, I2C, CAN communication • System bring-up and debugging I focus on stable, production-ready behavior rather than demo code. PCB Design and Manufacturing Ready Layouts I design PCBs with manufacturing and assembly in mind. • Schematic design and PCB layout • Design for Manufacturing (DFM) and Assembly (DFA) • BOM optimization for cost and availability • Fabrication-ready outputs (Gerbers, BOM, CPL) I prioritize first-pass manufacturing success and minimal revisions. Prototype Development and Hardware Integration I turn concepts into working hardware prototypes. • Full prototype builds from concept to working device • Hardware and firmware integration • Debugging and iteration of first prototypes • System testing and validation I focus on getting from idea to functional hardware efficiently. Mechanical and Cross Discipline Integration I support mechanical integration where electronics meet physical design. • Enclosure design using Fusion 360 • 3D printing, CNC, and laser cutting • Mechanical and electrical fit validation • Assembly and integration planning I ensure hardware works reliably in real-world physical conditions. Why Work With Me • 10+ years of hands-on experience in embedded systems, PCB design, and hardware prototyping • Strong focus on manufacturable, testable, and reliable real-world designs • Full-stack capability across electronics, firmware, and mechanical integration • Practical engineering approach that reduces prototype iterations and redesigns • Clear communication, fast iteration cycles, and dependable delivery I prioritize working systems over theoretical designs, focusing on getting from concept to functional hardware efficiently.

Hi, I'm Muzammil — Turning Electronic Ideas into Reliable, Production-Ready Systems With years of hands-on experience in PCB design and embedded development, I specialize in creating efficient, compact, and cost-effective solutions for IoT, automation, and consumer electronics. I’ve successfully delivered everything from simple sensor modules to complex, multi-layer PCB systems with integrated firmware, always focusing on quality, performance, and long-term reliability. 1. What I Offer: Complete Embedded Systems & PCB Design Services -Custom PCB Design & Development: Expertise in schematic design, manual PCB routing, and component placement using tools like EasyEDA, Altium, KiCad,Cadance and Proteus. Capable of designing single-layer, double-layer, and multi-layer PCBs optimized for space, thermal, and electrical performance. -Firmware Development & Microcontroller Programming: Skilled in C/C++ for developing firmware on microcontrollers such as ATTiny, ESP32, STM32, and AVR. Includes integration with sensors, displays, actuators, Neopixels, and real-time control using timers, interrupts, and power modes. -IoT System Integration & Wireless Communication: Development of Wi-Fi, Bluetooth, GSM, and LoRa-based solutions using MQTT, Blynk, and custom cloud platforms. Ideal for smart home devices, wireless monitoring, remote control systems, and low-power connected applications. 2. Tools, Platforms & Prototyping Skills -Design Tools: EasyEDA, Altium Designer, KiCad, Proteus -Firmware & Languages: C, C++, Arduino IDE, PlatformIO,Espressif -Prototyping & Testing: BOM creation, Gerber file preparation, breadboard testing, soldering, and hardware debugging -Simulation: Circuit simulation for pre-production logic and waveform validation -Interface Development: Basic HMI and control feedback using OLED/TFT displays, capacitive touch sensors, and haptic actuators 3. Why Work with Me? -End-to-End Development: I deliver complete embedded systems, from concept to production-ready design. -Reliable Circuit Design: My manual routing and structured component placement help ensure signal integrity, noise immunity, and thermal efficiency. -Efficient and Detail-Oriented: My work is grounded in precision, clear documentation, and readiness for manufacturing and scaling.