I’m an embedded firmware engineer with hands-on experience in C/C++ firmware development, device communication, and hardware-level programming for connected products and industrial systems. I also have a strong hardware background, including PCB design, power and protection circuits, embedded electronics development, and prototype testing, which allows me to understand both the firmware and the hardware side of a product. Whether you are building a connected device, industrial controller, communication gateway, or custom embedded product, I can help turn your idea into reliable working firmware.

Thank you for visiting my profile. My name is Ta Duy Long, I have extensive experience in electronic hardware and firmware development over 6 years. My expertise and skills: 1. Electronic Schematic and PCB Design - Mastering for vavious design tools such as Altium Designer, Kicad, Eagle and EasyEDA - Qualfied design for complex digital and analog circuits - EMC/EMI compatible PCB design and ceritifications 2. Firmware development for various MCUs and Embedded System - Robust Firmware programming using C, C++, Python - Familar with various Wire/Wireless communication protocols - AI embedded system firmware development 3. Strong problem solving skills and keen eye for technical details - Solving skills for cutting edge technologies - Fixing issues and optimiztion for existing design I always provide the qualified working result and kind support to 100% project success.

As an experienced Avionics/Electronics Engineer, I bring a diverse skill set and 4+ years of expertise in electronics and circuit verification, hardware implementation using Verilog, Digital Signal Processing. My proficiency extends to LabVIEW, MATLAB, VIVADO, and various other engineering tools, with a particular focus on FPGA programming. I have honed my skills in working with Software Defined Radios and Direct RF generation using Xilinx (RFSOCs, Zynq paired with AD9361) and NI hardware (FlexRIO, CRIO, USRP, myRIO). Over the past three years, I have developed my capabilities as a LabVIEW/MATLAB developer, working with High Speed Data acquisition, and implementing Digital Signal Processing (DSP) chains and algorithms. In addition to my technical skills, I am committed to ensuring timely delivery of projects and maintaining open and clear communication with clients throughout the project tenure. My goal is to provide innovative solutions that meet the needs of my clients and contribute to the advancement of the industry. I am always open to new challenges and learning opportunities. I look forward to bringing my unique blend of skills and passion to your project. Please feel free to contact me to discuss how we can collaborate on your next project.

I am an Electrical and Computer Engineer with expertise in end-to-end product development, bringing extensive experience in R&D, embedded systems, FPGA programming, and PCB design. I specialize in turning concepts into market-ready solutions, with a proven history of delivering efficient, innovative designs and leading projects from schematic development to manufacturing. My strengths include prototyping, firmware development, and interdisciplinary problem-solving, making me a reliable partner for building cutting-edge technology that integrates hardware and software seamlessly. In addition, I focus on hardware-based embedded software design for AVR and ARM platforms, including Arduino, ESP8266, ESP32, and other Espressif boards, as well as Raspberry Pi models such as CMIO and standard boards. I am skilled in engineering design and CAD illustration using AutoCAD and related environments, alongside extensive experience in circuit simulation with NI MultiSim, LTspice, Proteus (for analog/digital), DSCH, and Microwind (for chip design). My PCB design expertise covers Proteus, EasyEDA, Altium, KiCad, and embedded hardware development with ORCAD Allegro. I also bring strong capabilities in MATLAB/Simulink interfacing and app development using MATLAB App Designer and MIT App Inventor. Beyond design, I provide real-time problem-solving consultation and full project development services for analog, digital, and mixed-signal systems, with specialization in electronic design, power distribution, and digital interfacing.

Embedded hardware and firmware engineer with 25+ years of experience developing electronic devices from idea to production. I design schematics, PCBs, embedded firmware and help clients bring prototypes to manufacturable products. Experience includes industrial electronics, battery-powered devices, IoT, sensors, communications interfaces and microcontroller firmware.

👋 Hi, I’m Matt - a senior C/C++ developer and reverse engineer with 15+ years of experience working across Windows internals, low-level systems, and complex software analysis. My core expertise is understanding how software works under the hood. I specialise in reverse engineering applications, analysing Windows internals, debugging complex behaviour, and modifying or extending software at both user-mode and kernel level. Over the years I’ve developed more than 500 desktop applications in C# and C++, built large-scale production systems used by millions of users, and led development teams delivering reliable, robust software for enterprise and financial organisations. I operate comfortably at every layer of the stack - from kernel-mode drivers and memory analysis through to desktop applications, systems development, and backend platforms. 🔒 Windows Systems, C/C++ & Reverse Engineering - Reverse engineering complex applications and software systems - Understanding internal logic and reconstructing application behaviour - Adding or modifying functionality in existing software - Windows kernel driver development (WDM / KMDF) - Static and dynamic analysis (IDA, Ghidra, x64dbg) - Encryption / decryption analysis and algorithm reconstruction - Anti-tampering and protection bypass analysis - Driver debugging, crash dump analysis, BSOD investigation - Syscalls, Windows exceptions, hooks and internal APIs - Virtual / physical memory inspection and manipulation - Assembly, pseudocode and binary analysis - Researching undocumented Windows behaviour - Performance optimisation at system level If it runs on Windows, I can reverse engineer its logic, understand how it processes data, extract or reconstruct functionality, debug system-level issues, and alter behaviour where required - from user-mode applications down to kernel drivers. 🎮 Game Reverse Engineering, Cheats & Anti-Cheat Research I have extensive experience reverse engineering games and building internal and external cheats, mods, and tooling. - Internal and external game cheat development - Reverse engineering game engines and client logic - Working with major anti-cheat systems and protections - Bypassing anti-tamper and protection mechanisms - Game modding and functionality extensions - Memory inspection, injection and runtime analysis This experience requires deep understanding of low-level systems, memory, and complex software protections. ⚙️ Systems Development, Emulation & Embedded Work Alongside Windows systems work, I also work with lower-level system development and emulation. - Systems-level C/C++ development - Emulator and virtualised environment development - Hardware and device communication - Embedded systems development - DSP and signal processing related software - Performance-critical low-level systems 🖥 High-Performance Desktop Applications - High-performance Windows applications in C# and C++ - Real-time data processing systems - Custom internal tooling and automation platforms - Enterprise-grade desktop software supporting large user bases Having built hundreds of desktop systems and applications - from simple console tools to enterprise-grade platforms supporting millions of users - I understand performance, optimisation, maintainability, and long-term stability. 🏗 Backend Systems & Platform Architecture - Scalable backend systems and APIs - Client/server architecture and communication pipelines - Authentication, licensing and secure system design - Database architecture and performance optimisation - Refactoring and stabilising legacy systems I design systems for long-term stability and scale - not fragile MVPs. 👥 Technical Leadership & End-to-End Ownership - Led and managed teams of 3–20 engineers - Architecture ownership from concept to release - Code reviews, mentoring and engineering standards - Direct stakeholder and founder collaboration - Delivery planning and execution I don’t just write code - I take ownership of the outcome. Having worked with major financial institutions and enterprise organisations, I understand what works at scale, how to communicate complex technical decisions clearly, and how to deliver reliable, production-ready systems that stand up to scrutiny. 💡 Commercial & Technical Experience Combined I bring both deep low-level technical expertise and real commercial product experience. I’ve built profitable software businesses, worked with enterprise organisations, and understand the balance between engineering excellence and practical delivery. 🤝 Let’s Connect If you need help reverse engineering an application, analysing complex Windows behaviour, developing C/C++ systems, debugging difficult problems, or extending existing software - I would love to hear from you. I’m always happy to chat through ideas, provide honest technical advice, or take ownership of a project and see it through properly. Hopefully speak soon. Matt

I am a skilled electrical engineer with a diverse range of experience in embedded systems, microcontrollers interfacing, computer programming, PCB development, and product design. I am well-equipped to produce high-quality work. Key Services: *PCB Schematic and Layout Development. *Embedded and IoT Systems Design. *Internet of Medical Things (IoMT) Services. *Embedded System Consultancy. *Quick Response Time. *Quality Work Guarantee. Building a long term relationship is the highest priority. Skills: *PCB Development: Altium, KiCad, EasyEDA. *Languages: C, C++, Python, MATLAB, HTML, CSS. *Operating Systems: Windows, Linux, Embedded OS. *Hardware Interfaces: I2C, SPI, BLE, UART, Ethernet, GSM, Wifi, Arduino, STM32, ESP32. *Networking: TCP, HTTP, MQTT, Modbus. *Software: CubeIDE, Arduino, PlatformIO, Espressif-IDF. Whether you're looking to design a new product or optimize an existing one, I'm here to help you achieve your goals. I pride myself on my ability to understand your needs and deliver results that exceed expectations. Let's work together to make your project a success.

I am an Electronics Engineer with excellent experience in industrial and automotive embedded systems. On top of my main expertise I have been helping clients with customer support, data collection, and virtual assistance. I specialize in web scraping, AI-powered data processing, and lead generation to provide businesses with accurate and actionable insights. As an electronics engineer I have excellent experience in embedded systems design on and off Upwork platform. I have not only worked with individual as well as industrial and automotive clients. I have skills in 1- Embedded System Design 2- Circuit Design 3- Microcontroller Programming 5- PLCs and Control Systems 4- Electrical Systems Design Apart from my main degree and expertise I have been working as a virtual assitant and social media manager for more than 3 years on different freelancing platforms. My area of expertise are as below: 1- Virtual assistance tasks 2- Social Media Marketing and Management 3- Proof reading and content writing - German Language 4- Ecomerce store management 5- Web Research I am well familiar with Altium, Matlab, Visual Studio, Microsoft Word, Excel, Semrush, Jungle scout, Buffer, Canva and a number of other tools. Other then these tools I extensively use Agentic framworks to automate business processes and accomplish day to day tasks. I would be pleased to assist you in accomplishing your projects. I value elegant and high quality work and if you are looking for something similar with a fast and efficient delivery then you would love working with me. Thank you.

If your product design looks perfect in CAD but you're not sure it will actually survive the factory floor, that uncertainty is going to cost you. I'm a Product Design Engineer and Mechanical Design Engineer with 8+ years of experience in industrial design and manufacturing-ready CAD, and my job is to make sure your product gets built right the first time, not redesigned after a costly manufacturing mistake. From concept to product, I handle the full product development cycle so nothing gets lost between your idea and what actually ships. Recent work, and what it actually does: A. Sump Tube Alert System. Designed an automated water level control mechanism for swimming pools that detects rising water and shuts it off before overflow, with zero manual monitoring needed. Full industrial enclosure design integrated around the embedded electronics, delivered as a complete prototype ready product. B. Animal Feeding Chute, 500+ part SolidWorks assembly. Engineered a large scale mechanical assembly that feeds 6 animals at once instead of one at a time, cutting manual labor significantly. Full structural steel framing, gates, hinges, latches, and gate operation mechanisms modeled and managed as one complex parametric assembly. C. Topology optimized mouthguard. Applied topology optimization to reduce weight in a high impact mouthguard design, without compromising the structural strength it needs to protect against impact, keeping it light enough and comfortable enough for real use. What I deliver: Product, Mechanical & Industrial Design Concept to production ready CAD in SolidWorks, covering machine design, enclosure design, and snap fit design for plastic components. DFM/DFA for Manufacturing Design for injection molding, CNC, sheet metal, and 3D printing, so parts work correctly the first time they hit the factory floor. Engineering Drawings & GD&T Manufacturing drawings with complete tolerance stack ups and supplier ready documentation. FEA & Structural Simulation Validating designs before they're built, catching failure points before they cost you money. Reverse Engineering Converting existing parts or physical products into accurate, editable CAD. Prototyping & Rendering 3D printed prototypes and photorealistic renderings for testing, investor decks, or marketing. Tech Stack: SolidWorks, CAD Design, DFM/DFA, GD&T, FEA, CNC Machining, Injection Molding, Sheet Metal Design, 3D Printing, Reverse Engineering Message me before you commit to manufacturing. A short conversation now can save you months of rework and thousands in tooling costs later.

Home Automation, Industrial Automation, IOT System Design, Embedded System Design Mentor Graphics PADS Power PCB with Simulink and impedance simulation to calculated the microwave guidance, Altium included 365 ,Orcad Cadence Allegro 17x, Design Spark, Eagle 7.0 , Proteus Simulation, Vision System Matlab. Expertise in Technologies : ISA/RISC/PSoC/SoC/I2C/LINUX/SQL C./I2A/JTAG/S2C/MCLK/Fsync/ADC/DAC/AVR/PIC/ARM/x86-x64 Architecture/MCU/PIC/CPU/GPU/APU/ARM Based Processors and more hardware designing and development. That can be used in automation, signal processing, security, industry, home, offices and education purposes. Mentor Graphics Pads Power PCB Orcad/Allegero/Capture/PCB Viewer Altium Designer KiCAD Circuit Studio Autodesk Fusion Included Eagle Design Spark Proteus For Demonstration Of Simulation MCAD-ECAD Unification Component Library Management SPICE Simulation PCB Layout PCB Manufacturing (CAM) Design For Manufacturability / DRC Electronics Cooling MCAD-ECAD Unification