Senior Embedded Firmware & IoT Engineer | Matter Certified | 12+ Years I help companies ship production-ready IoT devices faster, with confidence, and ready for certification. With 12+ years in embedded firmware and IoT, I've delivered firmware for 10+ Matter-certified products over the past 3 years: smart locks, lighting systems, smart plugs, EV chargers, energy management devices, contact sensors, and window coverings. I know the Matter certification process end-to-end from harness testing to interoperability and I've shipped on both Matter over Thread and Matter over Wi-Fi. My work covers the full product lifecycle: hardware bring-up, custom bootloaders, RTOS firmware, OTA updates, cloud connectivity (AWS IoT, Azure IoT), and large-scale deployment. I build both end devices and IoT gateways used in real commercial products. Core Expertise: ✅ Matter over Thread & Wi-Fi end devices and gateways (RGB lights, door locks, sensors, window coverings, plugs, EV chargers) ✅ IoT Gateway design with Z-Wave, Zigbee, BLE Mesh, Matter & Thread Nordic, Espressif, Silicon Labs chipsets ✅ IoT Gateway connectivity over LTE and Wi-Fi ✅ Embedded Linux firmware with Yocto, Buildroot & OpenWrt ✅ OpenThread Border Router on ESP32 and Raspberry Pi ✅ OTA firmware — Thread, Matter, Z-Wave, BLE Mesh, Zigbee, and bare metal devices ✅ Custom bootloader design for Linux and bare metal embedded devices (U-Boot, MCUboot) ✅ Secure Boot, Flash Encryption, and TrustZone-based security ✅ Real-time OSs: FreeRTOS, Zephyr, mbed OS, CMSIS ✅ Low-power optimization — nRF52, ESP32, STM32, Silicon Labs ✅ Linux device drivers development (character, platform, SPI/I2C/UART drivers) ✅ Linux kernel porting, configuration, and BSP bring-up for custom hardware ✅ Device Tree (DTS) configuration and customization ✅ Video streaming & recording with GStreamer, AWS WebRTC ✅ Cloud connectivity AWS IoT Core and Azure IoT Core ✅ MQTT, CoAP, HTTP/HTTPS, WebSocket protocol implementation ✅ Automotive CAN — keypads, displays, touch panels, switching products (ESP32, nRF52840) ✅ Embedded GUI: Qt, LVGL, uGFX ✅ Wired protocols: UART, I2C, SPI, I2S, SDIO, USB, Ethernet ✅ Wireless protocols: BLE, BLE Mesh, Wi-Fi, Thread, Zigbee, Z-Wave, LTE-M, NB-IoT, LoRa ✅ Hardware bring-up, schematic review, and debugging with JTAG/SWD/logic analyzers ✅ CI/CD pipeline setup for embedded projects (GitHub Actions, Jenkins, west, CMake) ✅ Inter-processor communication (IPC, RPMsg, shared memory) on multi-core SoCs ✅ File systems for embedded Linux: ext4, UBIFS, JFFS2, SquashFS, overlayfs ✅ Containerization on embedded Linux — Docker, balenaOS ✅ Memory management, heap optimization, and stack profiling on constrained devices ✅ Unit testing and HIL (Hardware-in-the-Loop) testing for firmware ✅ Power management subsystems — suspend/resume, tickless idle, sleep modes ✅ Modbus RTU/TCP protocol implementation for industrial IoT applications ✅ Edge computing and local inference with TensorFlow Lite on microcontrollers Platforms: nRF52840, nRF5340, nRF9151, nRF7002, ESP32, ESP32-C3/C6/S3/H2, EFR32xG24, EFR32xG22, BG95, BG22, BGM220, STM32, Z-Wave 800, Raspberry Pi, Raspberry Pi Pico W, Beaglebone, Quectel SC20/SC206E, PIC16/18, dsPIC, TM4C123 Languages & Tools: C/C++, Python, Shell scripting · ESP-IDF, nRF Connect SDK, Simplicity Studio, STM32CubeIDE, Zephyr, MPLAB, Keil, Segger, Arduino IDE, Node-RED, GDB, Wireshark, SEGGER SystemView If you're building an IoT product and need an engineer who understands real-time constraints, wireless protocols, low-power design, and certification requirements I can help you get there.

- 8+ years of experience in C++, C# - Windows services, Desktop app development - Expertise in RPC, SOCI, SQLite, MySQL, Postgres - Skilled in multithreading, IPC, and performance optimization - Development of scalable backend services and distributed systems - Proficient in CMake - Strong debugging skills with GDB, Valgrind - Unit & integration testing using GTest - Experience in industrial automation, including .NET-based systems communicating with PLCs, OPC servers, and ERP environments, as well as serialization/aggregation solutions for packaging lines - Industrial automation (PLC, OPC UA, MQTT)

I am a Senior Software Engineer with 15+ years of experience in delivering scalable, high-performance applications. My passion lies in launching world-class apps that not only meet but exceed expectations. Unlike many developers who replicate existing solutions, I craft my own approaches, streamlined, optimized, and designed for both functionality and long-term scalability. My expertise spans C#/.NET development, modern JavaScript frameworks, Microsoft 365, Power Platform, and cloud infrastructure, enabling organizations to streamline operations, improve productivity, and scale efficiently. I am an experienced full-stack developer with deep expertise in C#, ASP.NET Core, .NET Framework, REST APIs, Angular, React, and Next.js. I build secure, scalable applications backed by SQL Server, PostgreSQL, and MySQL databases while leveraging Azure and AWS cloud services for performance, reliability, and growth. Also my core specialization is designing and developing solutions within the Microsoft ecosystem, including Power Apps, Power Automate, Power BI, SharePoint Online, Microsoft Teams integrations, Dataverse, and custom Microsoft 365 applications. I help businesses replace manual processes with automated workflows, modernize legacy systems, and create intuitive business applications that drive measurable results. I have collaborated with clients ranging from startups to large enterprises, helping them achieve business goals through innovative, analytical, and dependable technology solutions. In my previous role as Project Manager, I led a team of over 10 developers for 3 years, successfully delivering more than 30 projects. I thrive on building robust, production-ready applications and excel in collaborative, team-oriented environments. Currently, I work independently, ready to respond to client requests at any time and deliver the best possible results efficiently and reliably. Don’t look for my tech stacks of all here, you’ll see my capabilities demonstrated in every proposals and results. What’s clear is this: I am a C#/.NET and full-stack software engineer and Microsoft Solution Architect committed to creating solutions that stand out. Best Regards.

Whether you plan to build an end-to-end commercial product, need a very specific industrial solution, or just want a helping hand on a personal project, I can help turn your ideas into reality. I am an Electrical Engineer with extensive experience in IoT, embedded systems, and full-stack web & mobile app development. This combination allows me to deliver complete, end-to-end solutions where hardware and software work seamlessly together. My areas of expertise: ✅ Firmware & Embedded Systems: C/C++ for NRF52, ESP32, STM32, Arduino, Raspberry Pi; IDEs and frameworks including VS Code, Segger, STM32CubeIDE, ESPHome, Nordic SDK, STM32Cube, PlatformIO. ✅ Cross-platform app development (Android, iOS, web): React Native + Expo, Flutter, Capacitor. Native development (Kotlin/Swift). Embedded/systems Rust. ✅ Databases, backend & server-side scripting: Firebase, Supabase, MySQL, PostgreSQL, MongoDB, InfluxDB; Node.js. ✅ Data Analytics & Machine Learning: MATLAB, Python. ✅ Server Management & IoT Platforms: AWS, Azure, Google Cloud. ✅ FPGA & HDL: VHDL/Verilog, Quartus, Lattice Diamond for design and simulation. ✅ Electronics & Circuit Design: PSpice, Eagle, Altium Designer, KiCad; full prototyping and testing capabilities. I have the resources to build and test prototypes in my in-house workshop and the experience of having cutsom PCBs built with manufacturers like PCBWay and JLCPCB. I've had the privilege of working with clients from all over the globe. I encourage you to explore the reviews and feedback from my previous clients to get a sense of their experiences. I value open communication and I'm dedicated to creating a collaborative and friendly working relationship where we can work together to turn your ideas into reality. I'm always eager to take on new challenges, continuously learn, and stay updated with new technologies.

I’m a software engineer with 20+ years of experience in low-level systems, reverse engineering, and performance optimization. I specialize in analyzing, decompiling, and reconstructing complex binaries across Windows, Linux, and embedded platforms. My focus is on understanding code others can’t — restoring logic, recovering algorithms, and making sense of obfuscated or legacy systems. I’m comfortable working with C/C++, .NET, and ARM codebases, using tools like IDA, Ghidra, ILSpy, and custom-built analyzers. I can help you with: - Binary or .NET decompilation and analysis - Control flow and data structure recovery - Anti-tamper and obfuscation removal for legitimate maintenance or migration - Code audits for security or compatibility - Low-level debugging and performance tracing

🥇 Technical Lead at ServReality — Ranked Top 10 in AR/VR globally by Clutch! 🚀 With 15+ years in iOS, Android, and gaming, I bring full-cycle mobile and game development experience as a 💎 Mobile Solution Architect. 🎮 Senior Unity & Unreal AR/VR Developer with 12 years in immersive game creation — this isn’t just work, it’s passion. 🎯 I specialize in crafting AR/VR-powered games and mobile apps using Unity, Unreal, and Lumberyard to build immersive, interactive experiences. Here’s what I bring to the table: ✅ Mobile App Dev: iOS (Objective-C, Swift, Xcode), Android (Java, Gradle, Android Studio) ✅ AR: ARKit, ARCore, Vuforia, Wikitude, HoloLens, Meta 2, AR.js, Moverio ✅ VR: SteamVR, Oculus, Cardboard, Windows MR, Optitrack, Dexmo ✅ Game Engines: Unity3D, Unreal Engine, Lumberyard ✅ Art: Modeling, Texturing, Visualization ✅ Core Features: Group chat, voice/video calls, file sharing, real-time messaging, backend implementation ✅ AI & ML integration ✅ UI/UX design & testing for cross-platform apps In AR/VR, I work with tools like ARKit, ARCore, SteamVR, Oculus, and HoloLens to deliver engaging environments with features like gesture control, spatial mapping, haptics, and real-time rendering. My goal is to combine technical depth with creative precision — transforming visions into standout digital experiences. #AR #VR #MR #XR #GameDevelopment #MobileDevelopment #MobileApps #iOS #Android #Unity #Unreal #Lumberyard #ARKit #ARCore #Vuforia #Wikitude #HoloLens #Meta2 #Moverio #ARJS #SteamVR #Oculus #Cardboard #WindowsMixedReality #Optitrack #Dexmo #3DModeling #GameArt #Texturing #Visualization #RealtimeMessaging #VoiceChat #VideoCalling #FileSharing #AI #ArtificialIntelligence #MachineLearning #UIUX #BackendDev #GestureRecognition #SpatialComputing #CrossPlatform #MultiplayerVR #RoomScaleVR #ARGames #VRGames #InteractiveGameplay #ImmersiveExperiences #RealTimeRendering #GamePhysics #HapticFeedback #3DUX #VRUI #ARUI #VirtualStorytelling #AugmentedReality #VirtualReality #HeadMountedDisplays #SpatialMapping ⚡️ Updated portfolio on June 24, 2026

Greetings! I'm leading to BS in Computer Engineering, having 2 years of experience in Tutoring, development of different softwares. I can help you with following technologies. ✅ C / C++ (OOP, DSA, Communication Protocol UDP/TCP, Audio, OS etc.) ✅ Python (Pandas, Web Scraping, Automation – Selenium, PyTest, Requests etc.) ✅ Java / Kotlin (Android Studio, Audio Applications, Calling Applications etc.) ✅ Scripting (Linux --.sh & Windows -- .bat Scripting etc.) ✅ SQL / MySQL (Procedures, Functions & Data Analysis etc.) Tutoring Expertise: Languages You can Learn: (Basics to Advance with Notes & Examples Solving) ✅ C / C++ ✅ Python ✅ Java / Kotlin ✅ Scripting ✅ SQL / MySQL Courses You can Learn: ✔ CFP (Computing Fundamentals and Programming) ✔ OOP (Object Oriented Programming) ✔ DSA (Data Structures and Analysis) ✔ OS (Operating Systems) ✔ MI (Micro-Controllers & Interfacing) ✔ ES (Embedded Systems) ✔ DSD (Digital System Design) Developemnt Expertise: As a developer I can help you or create ✔ Android Applications with Audio Specification ✔ Simple GUI Based Games Using C++/Python ✔ Automation of Browsers (Edge or Chrome) ✔ Data Analysis Application using Python, SQL etc. ✔ App Scripts for Emails Marketing (Automation of Emails etc.), and Much More ... If you need any kind of help in any kind of technical stuff do contact me, we will have short discussion if you agree we can also have face time / meeting and we can discuss that. I aim to provide the best experience of learning and development and I'll try my best to build your idea into real. Regards, Book a Discussion Slot for Your Projects/Concerns below. Akif Ejaz,

Recent work: - AI Automation - Document Review Product - My existing ComfyUI DiT video generation workflow (LTX-Video 2.3 I2V), which runs on H200. Optimized a native Blackwell (B200, sm_100) implementation of SageAttention specifically mirroring the SageAttention2++ architecture targetting CUDA 12.8+ - Product price analytics using data from Terapack, Pricecharting etc using NLP - Combined SAHI (Slicing Aided Hyper Inference) technique with Yolov5 to detect moving objects - A non-CNN-based motion vector estimator for image deblurring due to motion blur - Deep Learning based Document image processing solution - High Accuracy Face Tracking and face blurring solution Total Experience: +27 years Core Skills: - C/C++ - C# (Unity) - TensorFlow - Python - Flutter & Dart - NodeJS, Flask, Django - MongoDB - Git

🚀 Senior Software Engineer | Team Leader | iOS, macOS, visionOS, watchOS | Swift, Objective-C, C++ | AR, AI 🔹 11+ Years of Experience | Master's in AI & Bachelor's in CS | PhD Researcher in Applied Linguistics Passionate software engineer with 11+ years of professional experience in developing high-quality applications for iOS, macOS, visionOS, Windows, and Linux. I specialize in Swift, C, C++, Objective-C, Objective-C++, and Rust programming languages building efficient, scalable, and maintainable solutions. Holding a Master’s degree in Artificial Intelligence and currently pursuing a PhD in Applied Linguistics, where I research OCR for handwritten texts, I bring a unique combination of AI, NLP, and software engineering expertise to projects involving text recognition and automation. 🛠 Tech Stack & Expertise 🔹 Programming Languages 💻 Swift | Objective-C | Objective-C++ | C++ | C | Rust 🔹 Development Tools 🔧 Xcode | Instruments | Terminal | Qt Creator | MS Visual Studio | VS Code 🔹 Architectures & Design Patterns 📐 MVC | MVVM | MVVM+Coordinator | VIPER | TCA | UDF 🔹 iOS/macOS Frameworks & Technologies 📱 UIKit | SwiftUI | Combine | Observation | AVFoundation | CoreFoundation | CoreGraphics | CoreData | CoreBluetooth | CoreLocation | MapKit | PushKit | CallKit | WidgetKit | XCTest | SPM 🔗 Third-party: Realm | RxSwift | SQLite | Alamofire | WebRTC | Twilio | Vonage | Firebase | AWS | Stripe | Google Maps | MapBox | Cocoapods | CarPlay | SiriKit 🔹 Networking & Communication 🌐 TCP/IP | OSI | REST API | GraphQL | WebSockets | VOIP | WebRTC 🔹 Databases & Storage 🗄 MySQL | SQLite | CoreData | SwiftData | Realm 🔹 C++ Libraries ⚙ Qt | Boost | STL 🔹 Scripting & Automation 📜 Bash | Fastlane 🔹 Operating Systems 📂 iOS | macOS | visionOS | watchOS | Android | Windows | Linux (Ubuntu, CentOS) 🔹 CI/CD & Version Control 🔄 Git | GitFlow | SVN | Jenkins | TestFlight | Fastlane | CircleCI | Github actions 🔹 Project Management & Collaboration 📌 JIRA | Trello | Redmine 🔹 UML & Software Design 📊 UML diagrams for system architecture 🔹 Languages 🗣 Ukrainian (Native) | English (Fluent, C1 - CAE Certified) I’m excited to collaborate on challenging projects and build innovative software solutions. Let’s discuss how I can help bring your vision to life! 💬 Let’s Connect!

I'm an italian electronic engineer with more than 15 years of work experience. I work as HW designer; FW and SW developer. As HW designer, I work in Altium, KiCad and Orcad and I have experience in development single MCU (Microchip PIC, ARM Cortex, ESP32) boards with several digital I/O (GPIO, UART, SPI, I2C, PWM,....) and some analog I/O. I design complete board: power section, MCU section, peripheral section,.... I design also boards with battery power; so I have experience in low power PCB design. I have also experience in commercial boards (Arduino, Raspberry, Beaglebone,...) shields design. I have also experience in bluetooth (both 2.0 and 4.0) PCB design. As FW developer, usually I work in C for Eclipse + GNU ARM GCC for different ARM Cortex M0/M0+/M3/M4/M33 manufacturers (STM32Fx, NXP, EFM32/EFR32 SiLabs, Nordic nFR5x, but I'm ready to learn new frameworks). I have also good experience with ESP32 in "esp-idf" framework. I work with both single task (bare metal) and multi task environment (FreeRTOS, RTX,...). I write code for low level driver (GPIO, UART, SPI, I2C, PWM....) management, for medium level (driver for sensor, MEMS, memories, fuel gauge, display,...) and for high level/final application, for bootloader and for OTA. I work also in "C code" commercial boards Arduino/Linux embedded commercial boards (Raspberry and Beaglebone). I have also experience in bluetooth (both 2.0 and 4.0) programming. All my code is covered by unit/integration/stress tests. As SW developer, I work in C, C++, .NET, Java, and lot of others programming languages. Mainly I work for Windows O.S., but I have experience in Linux development too. I have experience in openCV library for image/video processing. I have experience in Android App development with Java (Eclipse + Android SDK + Java).