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I am applying as a freelance hardware and software engineer and offer extensive experience in the development of electronic circuits and hardware components as well as microcontroller programming. Professional Profile: Experienced hardware and software engineer with over 30 years of expertise in the development of electronic circuits, hardware components, and microcontroller programming. Extensive project experience in both national and international environments. Highly self-motivated, analytical, and able to quickly adapt to new technologies.

I'm an electronics and embedded system expert with 𝟭𝟮+ 𝘆𝗲𝗮𝗿𝘀 of experience, with focus on wearables, reliable electronics and IoT devices. I have developed (or managed development of) more than 𝟮𝟬 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀 from concept to market. With my experience you can be sure of: 1. 𝗬𝗼𝘂𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁'𝘀 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝘀𝘂𝗰𝗰𝗲𝘀𝘀 and a high quality of development. 2. 𝗥𝗲𝗱𝘂𝗰𝗲𝗱 𝘁𝗶𝗺𝗲 𝘁𝗼 𝗺𝗮𝗿𝗸𝗲𝘁 & 𝗰𝗼𝘀𝘁 𝗼𝘃𝗲𝗿𝗿𝘂𝗻𝘀 by avoiding the mistakes made by less-experienced developers. I will be your development partner from your idea to a certified and successfully selling hardware product. 𝗠𝘆 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝘁𝗶𝗲𝘀: ∙ Electronics and Embedded System Architecture ∙ Schematic Design and PCB Layout, IPC compliance, EMI/EMC , building certifiable hardware ∙ Microcontroller Programming (STM32, nRF, Zephyr, RTOS & more) ∙ Wireless Connectivity (Bluetooth, WiFi, NB-IoT, LTE & more) ∙ Sensors (GPS, IMUs, biomedical sensing, precision sensing & more) ∙ Low-Power Battery-Operated devices (optimizing for long battery life) ∙ IoT, Wearables, MedTech and Industrial Electronics 𝗬𝗼𝘂𝗿 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗢𝘂𝘁𝗰𝗼𝗺𝗲𝘀: ① Reduce Time to Market ② Unlock Revenue Faster 𝗪𝗵𝗼 𝗜 𝗛𝗲𝗹𝗽: If you are a 𝘀𝘁𝗮𝗿𝘁𝘂𝗽, an 𝗲𝗺𝗲𝗿𝗴𝗶𝗻𝗴 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗰𝗼𝗺𝗽𝗮𝗻𝘆 or a an 𝗲𝘀𝘁𝗮𝗯𝗹𝗶𝘀𝗵𝗲𝗱 𝘀𝗰𝗮𝗹𝗲-𝘂𝗽 looking to develop hardware with microcontrollers, wireless connectivity, and sensors, I am here to help. By focusing exclusively on these areas, I understand your technology, your needs, and your pain points better than others. My specialized approach allows me to standardize the development process, use advanced tools, and speed up development without sacrificing quality. I live in Berlin and have studied engineering in Germany. I am also a founder of a development agency, Oxeltech GmbH, where a team of developers helps me realize your goals.

🎯 𝗪𝗼𝗿𝗸𝗲𝗱 𝘄𝗶𝘁𝗵 𝗠𝗲𝗿𝗰𝗲𝗱𝗲𝘀-𝗕𝗲𝗻𝘇, 𝗣𝗼𝗿𝘀𝗰𝗵𝗲, 𝗧𝗼𝘆𝗼𝘁𝗮 & 𝗙𝗼𝗿𝗱. 🇩🇪 𝗚𝗲𝗿𝗺𝗮𝗻 𝘄𝗼𝗿𝗸 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝗼𝗻-𝘁𝗶𝗺𝗲 𝗲𝘃𝗲𝗿𝘆-𝘁𝗶𝗺𝗲 🤝 𝗖𝗼𝗺𝗽𝗲𝘁𝗶𝘁𝗶𝘃𝗲 𝗽𝗿𝗶𝗰𝗶𝗻𝗴. ✅ 𝟭𝟭+ 𝘆𝗲𝗮𝗿𝘀 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. 𝟮𝟬𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱. 🇺🇸 𝗨𝗦 & 🇪🇺 𝗘𝘂𝗿 𝘀𝘁𝗮𝗿𝘁𝘂𝗽 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻. ☑️ <𝟴 𝗵𝗼𝘂𝗿 𝗿𝗲𝘀𝗽𝗼𝗻𝘀𝗲 𝘁𝗶𝗺𝗲𝘀, 𝟳 𝗱𝗮𝘆𝘀 𝗮 𝘄𝗲𝗲𝗸. 🛠 𝟮-𝗺𝗼𝗻𝘁𝗵 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗯𝘂𝗴 𝘄𝗮𝗿𝗿𝗮𝗻𝘁𝘆 𝗼𝗻 𝘄𝗼𝗿𝗸. 🥋 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗟𝗲𝗮𝗻 𝗦𝗶𝘅 𝗦𝗶𝗴𝗺𝗮 𝗕𝗹𝗮𝗰𝗸 𝗕𝗲𝗹𝘁 (𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘄𝗶𝗹𝗹 𝗯𝗲 𝗺𝗮𝗻𝗮𝗴𝗲𝗱 𝗲𝘅𝗰𝗲𝗽𝘁𝗶𝗼𝗻𝗮𝗹𝗹𝘆 𝘀𝗺𝗼𝗼𝘁𝗵𝗹𝘆) Hi, I’m Muhammad! You can think of me as your go-to expert to design and develop the firmware and software for all types of hardware devices and products. I cover both on-device needs and their matching companion apps on desktop and mobile. Beyond the software, I work in person with a small, talented team that can support every aspect of hardware development and mechanical design as well. When you work with me, you get a one-stop shop for bringing your product to market. 📞 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮𝗻 𝗲𝗮𝗿𝗻𝗲𝘀𝘁𝗹𝘆 𝗵𝗲𝗹𝗽𝗳𝘂𝗹 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗰𝗵𝗮𝘁 𝗮𝗯𝗼𝘂𝘁 𝗯𝗿𝗶𝗻𝗴𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗼 𝗹𝗶𝗳𝗲. ⭐️⭐️⭐️⭐️⭐️ ❝ Muhammad and his team did an absolutely fantastic job. They are the real deal. Not only did they complete everything I asked for to build me a very complicated machine, they constantly added in their own innovations and modifications to improve the performance of the device. It was extremely easy to work with them, and they are extremely professional and true experts in their fields. I proposed many changes during the development of the product, and they were able to accommodate my requests and provide valuable insight if changes weren’t needed or were too costly. They are backed by an engineering firm with specialists in so many fields, so we never needed to outsource work to an outside firm. Their firm felt like a one-stop shop that had all the resources needed to build a complicated mechanical product. I really could not imagine that many other engineer freelancers would have access to the resources needed to build my machine, so I am very grateful I found Muhammad instead of wasting my time and money with other freelancers. Do not hesitate to hire him. ❞ 🗣𝙏𝙖𝙣𝙫𝙞𝙧 𝙆𝙖𝙗𝙞𝙧 - 𝘾𝙀𝙊 - 𝘼𝙪𝙩𝙤𝙈𝙚𝙖𝙡 𝘿𝙮𝙣𝙖𝙢𝙞𝙘𝙨 Highlights of the software skills I support my clients with include: ☑️ Hardware Device Firmware Development - ☑️ Software Development - Software Architecture Design ☑️ Desktop App Development - Desktop Software Development ☑️ Printed Circuit Boards - PCB - Circuit Design - Altium - KiCAD - Eagle ☑️ Controllers - Raspberry Pi - Nordic (NRF) - Espressif - ESP32 - ESP8266 - STM - NXP - TI - Nvidia Jetson ☑️ Programmable Circuit Boards - Microcontroller Projects - Integrated Development Environment (IDE) ☑️ Electronic Design Automation - EDA - Eagle ☑️ Mobile App Development For Hardware Devices - Flutter (Hybrid) - Swift (Apple iOS) - Java/Kotlin (Android) ☑️ IoT Development ☑️ Embedded Systems - Embedded Engineering - C - C++ - Python - Rust - RTOS - Zephyr ☑️ Web Technologies - HTML5 - JavaScript - Node.js - RESTful APIs - PyQt ☑️ Tools & IDEs - Visual Studio - STM32CubeIDE - Eclipse - Keil Product Examples I’ve Worked On Include: 🔹 Consumer Electronics - Headphones - Smartwatches 🔹 Kitchen Appliances 🔹 Medical & Health - Medical Devices 🔹 Vending Machines - Retail 🔹 Automotive Tech 🔹 IoT - Internet of Things 🔹 Gadgets 📞 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 𝗼𝗿 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝘁𝗼 𝗯𝗼𝗼𝗸 𝗮𝗻 𝗲𝗮𝗿𝗻𝗲𝘀𝘁𝗹𝘆 𝗵𝗲𝗹𝗽𝗳𝘂𝗹 𝗰𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗰𝗵𝗮𝘁 𝗮𝗯𝗼𝘂𝘁 𝗯𝗿𝗶𝗻𝗴𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗼 𝗹𝗶𝗳𝗲. Thanks for taking the time to learn a bit more about me. Look forward to supporting you with your product soon! Muhammad Usman Sardar ⭐️⭐️⭐️⭐️⭐️ ❝ Working with Muhammad has been an absolute pleasure! He is incredibly skilled, reliable, and went above and beyond to deliver high-quality work on time. He communicated clearly throughout the project, understood the requirements perfectly, and handled every challenge with professionalism and a positive attitude. The end result exceeded expectations, and I’m truly grateful for his contribution. I highly recommend Muhammad to anyone looking for a talented and trustworthy developer. ❞ 🗣 𝘾𝙝𝙡𝙤𝙚 𝙑𝙞𝙡𝙙𝙚 - 𝘾𝙀𝙊 - 𝙏𝙚𝙙 & 𝘾𝙤.

About me: Experienced in electronics and software developing. Skilled in circuit design, PCB development, FPGA. Proficient in multiple programming languages like Assembler, C, C++, C#, Java, js, Verilog, Bash. Plus, last 4 years an experience of working with AUTOSAR project. Many years of experience to develop and support cross-platform desktop SW under Windows/Linux/MacOS with using Java Spring, Groovy, MSVC, .NET (C#), Qt and bash scripting. Experience in DevOps and logging area: Amazon AWS, Ansible, Packer, Terraform, Concourse, ELK stack and oth. Team Lead experience - capable of managing and guiding developer teams. Worked in teams on projects of varying complexity in companies like Comcast (US) and Harman, Continental (Germany). Friendly, responsible, and punctual, with a collaborative mindset.

- 15+ years of experience in motion graphics, graphic design, and content creation - Helping brands stand out with bold visuals and engaging content - Expert in visual storytelling to create impactful and memorable designs I create eye-catching motion graphics, striking graphic designs, and engaging content that help brands stand out and connect with their audience. My approach blends creativity with strategy, ensuring every design is both visually compelling and highly effective. Whether you need dynamic animations, bold branding, or engaging content, I’m here to bring your ideas to life. Let’s work together to elevate your brand with powerful visuals. Ready to get started? Let’s talk!

I am an experienced Embedded Systems Engineer with strong skills in both hardware and firmware development, with over 13 years of continuous work in electronics, embedded systems, and sensors. Over the years, I have designed and developed solutions for IoT, industrial automation, and smart devices, from concept to production. My expertise includes: • Embedded software development (C/C++, Python, FreeRTOS, ESP-IDF, STM32 HAL) • PCB design and hardware development (Altium Designer, KiCad, low-power design, RF integration) • IoT and connectivity (Wi-Fi, BLE, LoRa, 868MHz RF, Ethernet, PoE) • System and sensor integration (sensors, displays, audio, power management, battery systems) I combine problem-solving skills with attention to detail to deliver reliable and optimized solutions for every project. Based in Germany, I collaborate effectively with international clients and consistently provide professional, on-time results. If you are looking for a dedicated engineer to bring your embedded ideas to life, let’s connect!