Hire the Best Embedded Systems Engineers

Experienced Embedded Systems & IoT Engineer Hi there! I’m a passionate Embedded Systems and IoT Developer with over 4 years of experience bringing hardware ideas to life. I specialize in building end-to-end solutions using micro controllers like Arduino, ESP32, and ESP8266 and I’m deeply involved in everything from firmware development to custom PCB design. I’ve spent years working with a wide range of technologies to create seamless user experiences: Interfaces & Displays: Designing intuitive controls using OLED, TFT, Nextion, and Matrix displays. Connectivity: Integrating GSM, GPS, Wi-Fi, and Bluetooth for smart, connected devices. Cloud & Backend: Building real-time monitoring systems using Firebase, MQTT, Blynk, and MySQL/PHP. Prototyping: Utilizing Wokwi and Tinkercad to ensure designs are flawless before they hit the bench. What I bring to your project: I don’t just provide code; I deliver a complete, functional package. You’ll receive clean C/C++ or .ino source code, detailed circuit diagrams, and simulation files where applicable. Most importantly, I provide the expert advice needed to ensure your project is reliable and scalable. I’m a firm believer in "measure twice, cut once," so please feel free to contact with me. I’d love to discuss your vision for free and make sure we’re the perfect fit for a successful collaboration! Looking forward to building something amazing with you.

I am a Senior Electrical Engineer with a Master’s degree and 16 years of experience designing embedded electronic systems from concept through production. My work includes electronics architecture, schematic design, PCB layout, firmware development, server-side system integration, and prototype bring-up for low-volume and production hardware. I have extensive experience with PCB design and manufacturing, including over 10 years using Altium Designer, along with Eagle, KiCad, and other professional tools. My designs account for signal integrity, power integrity, EMC considerations, and manufacturability. I regularly support projects through prototype builds, validation, and transition to contract manufacturing. My technical background includes a wide range of sensors and subsystems such as temperature, humidity, time-of-flight, reflective sensors, load cells, RTDs, pressure sensors, light sensors, smoke detection, IMUs, magnetic sensors, mmWave radar, GPS, and image sensors. I design complete systems that integrate sensing, processing, power management, communications, and backend connectivity. I have developed designs involving bidirectional motor control, piezo mist drivers, servos, heaters, LED drivers, PMICs, battery charging and protection, audio systems with mixing and noise cancellation, RFID and NFC, AC-powered systems, switch-mode power supplies, vision systems, and closed-loop temperature control using PID. My embedded software experience includes bare-metal and RTOS-based development across a wide range of platforms, including PIC, AVR, SAMD and SAMG, STM32, nRF52, EFM32, MSP430, PSoC, LPC, Kinetis, i.MX, Jetson, and Raspberry Pi. I work with Microchip, Atmel, Nordic, ST, Silicon Labs, and Espressif toolchains, as well as FreeRTOS, uC/OS-III, Zephyr, and FPGA-based systems. I have significant experience with IoT system integration beyond the device level. This includes server-side communication protocols for connected products, backend services, databases, and client-facing applications. I have worked with REST APIs, MQTT, WebSockets, TCP/UDP, and custom protocols, using Python and Node.js on the server side, along with SQL and PostgreSQL databases. I have also developed web-based client portals using React and Bootstrap to support device management, data visualization, and system administration. Separately, I use Python extensively as a development and engineering tool. This includes writing scripts and utilities for automation, testing, debugging, manufacturing support, data analysis, and workflow integration during hardware and firmware development. I have designed wireless and connected products using ESP32 and ESP8266, nRF52, u-blox cellular modules, LoRa, Zigbee, and Z-Wave. These systems have been deployed across consumer, industrial, automotive, marine, aviation, and agricultural applications. Industry experience includes RV systems, drones, consumer electronics, industrial equipment, automotive lighting and heating, marine wireless sensor networks, aviation seat and heater controls, and agricultural equipment. I am comfortable working with both startups and established manufacturers and understand the tradeoffs required to move a design from prototype to production. I focus on building reliable, manufacturable systems and communicating clearly throughout the project. If you need an engineer who can own the hardware, firmware, and system integration end to end, I am ready to help.

Top 5% Talent on Upwork | Embedded & Hardware Engineer | 100% Job Success | 10+ Projects Delivered | 5+ Years of Experience Are you looking for an experienced Embedded Systems & Hardware Engineer who can transform your idea into a fully working smart device? You’re in the right place. I specialize in designing and developing complete IoT products — from schematic + PCB design, to firmware programming, to wireless communication integration, testing, debugging, and final prototype support. Whether you're building a: ✔ Smart Home Device ✔ Wearable Product ✔ Industrial Sensor Node ✔ BLE Tracker ✔ WiFi Enabled Controller ✔ Battery Powered Embedded System ✔ Custom Wireless PCB Product ◆ Core Expertise ▸ Embedded Systems & Electronics ✓ Microcontrollers: STM32, ESP32/ESP8266, nRF52 ✓ Ultra-Low Power Design: sub-µA standby, long-life battery systems ✓ PCB Design: multi-layer, high-density, signal integrity optimized ✓ Embedded Firmware: UART, SPI, I2C, real-time systems ✓ Wireless: BLE, WiFi, LoRa, MQTT ✓ Motor Control: PID, stepper/servo systems ▸ System Development ✓ Hardware + Firmware integration ✓ Debugging & production validation ✓ Power profiling & optimization ✓ OTA, bootloaders, custom protocols ◆ Tools & Technologies ▸ Firmware: C, C++, Python, FreeRTOS ▸ Hardware: KiCad, Altium, JTAG, Oscilloscope ▸ Communication: UART, SPI, I2C, RS485, Modbus ▸ IoT: BLE, WiFi, LoRa, MQTT ◆ Why Work With Me ✓ Ultra-low power specialist (battery-operated systems) ✓ Full-stack embedded (hardware + firmware) ✓ Production-ready design focus ✓ Clear communication & reliable delivery ✓ Post-project support I can help you engineer it professionally, efficiently, and production-ready. I can help connect your hardware seamlessly to mobile apps, gateways, or cloud platforms.

I'm an experienced PCB Designer and Firmware developer with a strong background in Embedded Systems , PCB Design and manufacturing. With over 3 years of expertise, ✅ PCB DESIGN SERVICES: • Expertise in PCB layout/design for up to 8 layers, offering cost-effective and space-saving solutions. • Skill in creating custom schematics, footprints, symbols, and libraries from scratch. • Proficiency in board design, including the creation of 3D models of PCBs in CAD and PDF formats. • Experienced in firmware development and programming. • Preparation of Gerber files for production, with a focus on selecting components, creating a bill of materials (BOM), and preparing comprehensive manufacturing documentation. ✅ FIRMWARE DEVELOPMENT: • I develop custom firmware for various platforms such as FPGA, MCU, SoCs, ARM, NXP, PIC, Arduino, and Atmel. • I specialize in programming for Bluetooth Low Energy (BLE) and other wireless technologies. ✅ PRODUCT DEVELOPMENT: • I use SolidWorks for mechanical design, including 3D modeling and mold designs. • I also design product enclosures. ✅ SPECIALIZATIONS: FOR ELECTRIC VEHICLES: • I design Battery Management Systems . ✅ FOR INDUSTRIAL/REMOTE CONTROL APPLICATIONS: • I create microcontroller-based designs for robotics, automation, power systems, VFDs, and instrumentation. • I have expertise in communication technologies like WiFi, TX/RX, Bluetooth, BLE, GATT, and radio. ✅ SOFTWARE EXPERTISE: • I'm proficient in software like Altium Designer, Eagle PCB, KiCad, Proteus Design, and more. • I'm skilled in using SolidWorks and AutoCAD for mechanical designs. I understand and can design products to comply with UL Standards, ensuring safety and reliability. My commitment is to provide high-quality, custom PCB designs that meet the specific needs of each client, using the latest software and adhering to the highest industry standards

Hi, I'm David. I help turn complex electronic concepts into dependable, production-ready products. With over 5 years of practical experience, I support clients through the full development cycle, from initial design to functional prototypes and manufacturing handoff. My focus is on building efficient, scalable, and cost-conscious hardware systems that perform reliably in real-world conditions. 1. What I Deliver: Embedded Systems & Hardware Development - PCB Design & Hardware Engineering: Circuit design, multi-layer PCB layout, component selection, impedance tuning, compact design, and cost optimization. Emphasis on IPC standards, signal integrity, EMI/EMC mitigation, and thermal considerations. - High-Speed & Complex Systems: Hands-on work with DDR, HDMI, MIPI (CSI/DSI), PCIe Gen1/2, along with SoC and FPGA-based prototyping. - Embedded Platforms: STM32N6, STM32H7/STM32H5, STM32F7/STM32F1/F3/F4, ESP32/ESP8266, Nordic nRF52 series, ARM Cortex-A systems, Raspberry Pi (CM4/CM5), Zynq-7000. - Power & Mixed-Signal Design: Switching regulators (Buck, Boost, Flyback), LDOs, battery systems, motor control (BLDC, stepper, servo, DC), and analog/digital integration, PoE, LLC. - Manufacturing Readiness: BOM preparation, Gerber generation, and design adjustments to streamline production and reduce costs. - Tools: Altium Designer, KiCad, LTspice, Proteus, MATLAB/Simulink . 2. Firmware & Software Development - Programming: C, C++, Embedded C, Python (for automation and validation). - System Development: Linux-based platforms, MCU firmware, RTOS (FreeRTOS), power optimization, bootloaders, OTA updates, and debugging. - Connectivity & IoT: WiFi, BLE, LoRa, Zigbee, GSM/LTE/NB-IoT/5G, GPS, RFID, NFC. - Communication Interfaces: UART, I2C, SPI, I2S, RS232, RS485, CAN, Modbus RTU/TCP, USB, Ethernet. - User Interface: LVGL-driven GUIs, TFT/OLED displays, and touch interfaces. 3. Development Process & Collaboration - Product Lifecycle Support: Concept → prototyping → validation → production handover. - Workflow & Management: Organized development using Git, Jira, and structured documentation with clear milestones. - Global Collaboration: Experience working across US, EU, and Asia time zones with consistent communication. - Troubleshooting: Strong capability in diagnosing and resolving both hardware and firmware issues. 4. Why Choose Me? - Unified Skillset: Combined hardware and firmware capabilities help minimize back-and-forth and speed up delivery. - Practical Engineering Approach: Designs are built with real-world constraints in mind — not just theory. - Efficiency-Oriented: Focus on reducing unnecessary costs while maintaining performance and reliability. - Clear & Responsive Communication: Regular updates, well-documented progress, and quick feedback. Looking to bring your idea into a functional, well-engineered product? Feel free to reach out. I’d be glad to discuss your project !!!

I'm an electrical, electronic, and software engineer from Indonesia. I'm graduated my bachelor degree at Sepuluh Nopember Institut of Technology majoring Electrical Engineering. I have some experiences in engineering projects, software development, and research program. I focused on Electronics Engineering area, such as embedded system, electronic circuit and PCB design, IoT, machine learning, and computer vision. I'm also have qualification on website development, databases, automation & control system, SCADA, power electronics, etc. I'm currently working in IT company and open to the side project or freelance opportunity. You can see my portfolio in my personal website and github account.