I’m an experienced Electronic Engineer and Firmware Developer with a passion for building innovative IoT and Edge AI products. With a strong foundation in embedded systems, circuit design, and low-level programming, I help businesses turn their ideas into reliable, scalable hardware and firmware solutions. Over the years, I've developed end-to-end systems that integrate microcontrollers, wireless communication protocols (Wi-Fi, BLE, LoRa, Zigbee, NB-IoT, 4G/5G, RFID/NFC, GNSS), and AI/ML models for real-time edge intelligence. From concept to prototype to production, I bring deep technical expertise and a hands-on approach to every stage of development. I also help businesses like yours streamline sourcing operations, reduce costs, and ensure product quality from start to finish. With years of experience working with Chinese manufacturers and global clients, I provide end-to-end sourcing support: Supplier Research & Verification, Product Development & Customization, Negotiation & Cost Optimization, Quality Assurance, Logistics Support, and Risk Management. As a hardware and firmware engineer, My Skills include: - Embedded C/C++, Python, RTOS, embedded Linux development - Microcontrollers: Arduino, AVR, STM32, ESP32, nRF52/53, nRF91, EFR32MG24, MSP430, Raspberry Pi, TI, NXP, Rockchip - Edge AI integration using TensorFlow Lite, OpenCV, and TinyML - PCB Design (Altium, KiCAD, EasyEDA), analog/digital circuit design - Wireless protocols: BLE, Wi-Fi, LoRa, Zigbee, NB-IoT, 4G/5G, RFID/NFC, GNSS - IoT platforms: AWS IoT, Azure IoT, GCP, MQTT, RESTful APIs - Power-efficient design, battery optimization, and sensor integration What I Offer: - Full-cycle product development: from schematics to firmware - Edge AI applications: anomaly detection, predictive maintenance, voice/sensor analytics - Rapid prototyping and MVP development - Troubleshooting and optimization of existing designs - Documentation, testing, and support for certification I work closely with startups, R&D teams, and product innovators to deliver custom embedded systems that power the next generation of connected devices. If you're looking for a reliable and skilled engineer to bring your IoT or AI-driven product to life, let’s connect!

Specializing in LabVIEW, I also provide embedded and IoT solutions when projects require full system integration. I help hardware startups, industrial teams, and research labs build reliable test systems and connected IoT solutions — from data acquisition to real-time monitoring. My primary expertise is in LabVIEW-based test automation, including TestStand, DAQ systems, and hardware integration, used for validation, production testing, and R&D environments. Over the years, I’ve developed systems that: Automate complex testing workflows Improve measurement reliability and repeatability Reduce manual effort and testing time In addition to LabVIEW, I also work on embedded and IoT systems, allowing me to deliver complete, end-to-end solutions: 🔧 Core Capabilities LabVIEW & TestStand automation systems Data Acquisition (DAQ) and instrument control Embedded firmware (ESP32, STM32, Arduino) Sensor integration and real-time data processing Communication protocols (MQTT, TCP/IP, Serial) Web dashboards for device monitoring and control 🎯 What You Can Expect ✔ Clean, maintainable, and scalable solutions ✔ Stable real-time performance ✔ Clear technical documentation ✔ Strong understanding of both hardware and software Whether you need a LabVIEW automation system, embedded firmware, or a complete IoT solution with dashboard, I focus on building systems that are robust, production-ready, and easy to maintain. 📌 If your project involves hardware + software integration, I can help you design and deliver it end-to-end.

Passionate electrical engineer with my own lab. Deep knowledge of the electricity grid (I work in EV charging) and embedded systems. I have balanced the European grid by high speed (<2s response) control of 25,000 EV chargers in an operational setting with actual revenue. Could well be the largest European project to date. Highly interested (and rather skilled) in real time control by both microcontrollers and Linux based systems using either modern interface standards or legacy ones. Both a project manager as well as the developer. Very annoying tester (I noted the lab. Consists of good Keysight measurement equipment like oscilloscopes, vector signal generators, spectrum analyzer for high current grid work up to RF) Programming languages: C, C++, ARM assembly, Python, Lisp, Verilog. Embedded HW: stm32, Nordic, SiLabs, Esp32/Arduino and a bit of FPGA work. Technologies: gRPC, Bluetooth Low Energie, OCPP, Modus, ISO15118, IEEE1901, AWS, GCP Personal: I see myself in the basis as an engineer that builds things as well as an abstract mathematician. With all the positives that come with that combo, but I am still a normal communicator with a happy family. But I will only work on something that I understand up to the first principles. I enjoy people around me with the same mindset. Things can go really fast in that setting.

I have been working in the field of embedded systems for about 10 yrs. With embedded systems, i mean both Microcontrollers and application processors that are used to build Single Board Computers (SBC). I have worked with many microcontrollers like PIC, AVR, STM32F1xx, STM32F2xx, STM32F4xx, STM32F0xx, LPC1768, TIVA-C, MSP430, OMAP l138, ESP32, ESP8266 and DA1458x. Also, i depend in many projects on SBC like raspberry pi, beagle board, orange pi, nano pi and tiny rex. I can use multiple languages for programming according to the platform used in the project. I have a great experience in programming with C, C++, embedded C, python, bash and perl. In addition to the field of embedded systems, i am very curious with security in any project i work in. I have a master degree in Cryptography in broadcast encryption. I tries always to follow security mechanisms in my solutions. I can afford security solution for the projects to keep data safe from unauthorized disclosure specially in network projects or projects that requires TCP communication.

[ PCB Design • Firmware • RF • Production-Ready Hardware ] I help startups, individuals and product teams turn electronic product ideas into reliable, production-ready hardware. Most projects don’t start with a clean spec. There is usually a rough concept, an early prototype, or a design that is not behaving as expected. That’s typically where I come in. I work across the full development process, from system architecture and component selection through schematic design, PCB layout, firmware, bring-up, testing, and manufacturing handoff. The goal is not just to make something that works, but to build hardware that remains stable, repeatable, and manufacturable. A big part of my work is preventing problems early. Poor power design, RF issues, EMI, or layout decisions that cause instability later are common failure points. Fixing these after prototyping is costly, so I focus on getting the fundamentals right from the start. My work includes: * Schematic design and multi-layer PCB design (Altium Designer) * Embedded systems and firmware (C, C++, Rust, Embedded Linux) * Hardware debugging and root-cause analysis * RF design (BLE, Wi-Fi, LTE, GNSS, Sub-GHz) and antenna integration * Power electronics (DC/DC, battery systems, charging, PoE) * In-house validation, testing, and pre-compliance checks * DFM/DFT and manufacturing handoff (BOM, Gerbers, assembly documentation) I maintain a fully equipped lab for bring-up and testing, which allows issues to be identified and resolved early, before they reach production. I’ve worked on IoT devices, wearables, and industrial systems using platforms such as STM32, ESP32, nRF52/nRF53, and i.MX. I work directly with clients, keep communication clear, and stay involved until the design is stable. No handoffs, no guesswork, and no disappearing after the first prototype. If you’re building a hardware product and want it done properly from the start, or need to stabilize an existing design, feel free to get in touch.

As an Electrical/Electronics Engineering graduate and passionate IoT/AI enthusiast, I bring nearly seven years of hands-on experience in embedded systems, Arduino, ESP, and sensors. Throughout my career, I have adeptly coded microcontrollers, including Arduinos, ESP Family, STM32/GD32, and Raspberry Pi, seamlessly integrating them with various hardware modules such as RFID, GSM, Bluetooth, GPS, and LCDs. I have spearheaded core electrical engineering projects leveraging advanced machine learning algorithms like Decision Trees and Clustering for system optimization and efficient design. My proficiency extends across programming languages including C/C++, Python, and MATLAB, enabling me to tackle diverse challenges easily. Additionally, my expertise encompasses a wide array of domains ranging from probability and statistics to signal analysis, digital logic design, power system analysis, and more. I boast strong proficiency in MS Office tools, leveraging them adeptly for comprehensive project documentation. Notable projects in my portfolio include: - Disaster minimization through Home automation - Efficient islanding detection techniques - Clustering analysis for power grids - WiFi-based relay control system - Client-server message exchange utilizing the HTTPS button - MQTT pump controller implementation - Energy meter data logging solutions - Automatic flushing system design for settling basins With a blend of theoretical knowledge and practical skills, I am poised to deliver innovative solutions and drive excellence in the field of embedded systems and IoT.

IoT & Embedded Systems Developer | ESP32 · Arduino · Raspberry Pi I help founders, engineers, and product teams turn ideas into fully functional, market ready IoT products through my agency Null Labz, a specialized studio focused on embedded systems and connected device development. WHAT WE DELIVER AT NULL LABZ ? Embedded Systems Development : Custom firmware and hardware engineered for real-world deployment not just demos. Built to last in the field. IoT Infrastructure & Seamless Integration : End-to-end connectivity using MQTT, REST APIs, CoAP, LoRaWAN, GSM, and AMQP — integrated with scalable cloud systems. Rapid Prototyping & Market-Ready Deployment : We take your concept through PCB design, circuit prototyping, and firmware development to deliver a shippable product fast. ✅ ESP32 / ESP8266 & Arduino Firmware Development ✅ Web Server Development on ESP32/ESP8266 ✅ Sensor & API Integration ✅ Protocols: MQTT, HTTP, CoAP, GSM, AMQP, LoRaWAN ✅ Circuit Design & PCB Design ✅ Rapid Prototyping ✦ Full-cycle delivery — I handle the full product arc from schematic to deployed hardware. ✦ Agency-backed depth — through Null Labz, I bring a dedicated team approach to complex IoT projects. ✦ Clear communication — I keep you informed at every stage so there are no surprises at handoff. ✦ Real-world focus — every solution is built with deployment, reliability, and scalability in mind from day one. Let's connect whether you need a proof of concept prototype or a production ready connected device, Null Labz has you covered.

I deliver high performance, integrated solutions by bridging the gap between low level hardware & high level intelligence 18+ years of experience in Embedded Systems Design and Development in the field of Automotive ECU applications ,data analysis & Agentic AI projects Expertise in Automotive SW development ,Diagnostics, Bootloaders & Electric Vehicle Battery Management Systems, Experience on controller platforms like Arduino,Raspberry,STM32,Freescale,Infineon & TI controllers Embedded C : Microcontroller Driver development & Communication Protocol drivers Automotive Diagnostics : Firmware Development and Automotive Diagnostics(UDS,OBD-2,CAN) IoT Eco Systems : End to IoT architecture to connect edge devices to cloud. Data Driven Intelligence & Machine Learning : Data Analysis & Agentic AI development Well versed with Embedded C programming & Python Scripting Please see my Upwork profile reflecting the successfully completed projects reflecting the above mentioned skillsets. If you consider me suits your project requirements,Please add me to the message Room so that we can discuss in detail .My time zone (UTC+5.30) I am available at Indian time 6.30(IST + 5.30) am - 8.30 am ,and 8pm -10.00pm. Please mention your available time to have further discussion.

I am an Electrical Engineer and Embedded Systems Developer with hands-on experience in designing and coding for embedded devices, building IoT solutions, and working closely with both hardware and software. My passion lies in creating fast, secure, and efficient systems that connect devices seamlessly. My core expertise includes: Embedded Systems Development – coding for microcontrollers (ESP32, Nordic nRF) and optimizing low-power performance. Hardware Design - Designing intermediate-level boards, specialised in wearables and IoT devices, having experiences with Altium, Kicad and CircuitStudio. IoT Solutions – building connected devices with Wi-Fi, BLE, MQTT, and HTTP protocols. Embedded Linux – working with Raspberry Pi and developing custom operating systems using Buildroot. Hardware & Software Integration – bridging the gap between electronics and firmware for reliable products. System Architecture – designing scalable and secure solutions for industrial and consumer IoT applications. I am detail-oriented, enthusiastic about problem-solving, and thrive in projects that push the boundaries of innovation. Whether you need firmware development, IoT integration, or embedded Linux customization, I can deliver solutions that are robust, efficient, and tailored to your needs.

I help startups and companies transform ideas into reliable, production-ready electronic hardware. With 6+ years of experience, I specialize in schematic capture, PCB layout, embedded hardware development, and Industrial IoT solutions for commercial and industrial applications. My expertise covers everything from simple 2-layer boards to complex multilayer and HDI PCBs, always focusing on signal integrity, manufacturability, reliability, and cost-effective production. Core Expertise • Schematic Capture & Electronics Hardware Development • PCB Layout (2-layer, Multilayer & HDI) • Embedded Hardware Development • Industrial IoT Devices & Sensor Nodes • Hardware Debugging & PCB Optimization • BOM Creation & Cost Optimization (JLCPCB/LCSC Ready) • Prototype Validation & Manufacturing Support Technical Experience • ESP32, STM32, Nordic nRF52 Series • LTE / NB-IoT Modules (Quectel, Sequans, u-blox) • RS485, Modbus & CAN Bus Communication • Battery Management Systems (BMS) • Low-Power Battery & Solar-Powered Electronics • Buck, Boost & LDO Power Supplies • RF Layout & Antenna Integration Professional Highlights ✔ Top Rated Plus Freelancer (Top 3% on Upwork) ✔ 100% Job Success Score ✔ 120+ Successfully Completed Projects ✔ $100K+ Earnings on Upwork ✔ 98% 5-Star Client Reviews Development Tools • Altium Designer • KiCad • EasyEDA (Standard & Pro) What You Can Expect ✔ Production-ready PCB layouts ✔ Clean, organized schematics ✔ Complete manufacturing files (Gerber, BOM & Pick-and-Place) ✔ DFM-focused hardware for smooth manufacturing ✔ Clear communication and dependable delivery throughout the project Whether you're developing a new electronic product, upgrading existing hardware, or preparing a prototype for manufacturing, I can help turn your concept into reliable, production-ready hardware.