Hai, I am Chandradurga , I have been working as a Full Stack developer with great efficiency. I am familiar with Networking protocols like SMTP , PO3 , ModbusTCP , HTTP , Web Services , WebAPI .I have excellent skills in developing the front end and back end using C#.NET | ASP.NET | ASP.NET Core | WebAPI | HTML | CSS| Bootstrap | Java | Python | LLM |OpenAI API|MS Access | SQL Server | MySQL | Esp32 | STM32 |OCR | Tesseract , | PlatformIO. I also have developed Desktop applications using C++ | Visual C++ |QT C++| C#.NET | Java |Python OpenCV |FFMPEG AI

I am a software developer with 16 years of experience in C++ and Java programming and over 11 years of expertise in Android Open Source Project (AOSP) development. I have a deep understanding of Android architecture, system component modifications, and creating custom AOSP-based solutions including secure hardened ROMs and deniable encryption solustions such as mobiflage I have experience in Android application development, building scalable, user-friendly apps with a focus on performance and reliability. Experience with background in FFmpeg and GStreamer, leveraging these technologies for multimedia processing and streaming solutions. My work with Sunshine and Moonlight-qt, open-source streaming platforms, highlights my ability to deliver high-quality remote desktop and game streaming solutions.

Hello! I am expert Backend Developer with almost 20 years of experience in backend, Android mobile, desktop apps, apps for embedded devices, ERP apps and web development. Proficient in developing applications in wide range of areas, including business applications and database management. Have high attitude expertise in Linux OS management, including building automated servers with set of services/tools for different purposes, virtualization tehcnologies like KVM/libvirt, containerization technologies like LXC, Docker, Kubernetes. What I can do: - Planning and implementing the app’s architecture and features. - Writing apps from the very scratch and further support. - Code Review, Fixing and supporting the apps written by others. - Working with a team of developers or solo. Technical Skills: * Languages and Frameworks: Java (Spring, Quarkus, Dropwizard....), Kotlin, C, C++, Qt, Rust, Go, Python (Django), JavaScript, PHP * Platforms: Backend, Android, Linux (Fedora, RedHat, CentOS, Ubuntu) * Technologies: Docker, Kubernetes, CI/CD, Mobile Development, Docker, KVM, libvirt, IT infrastructure monitoring tools, AWS services, GCP * Database Management: PostgreSQL, SQLite, MySQL.... - I'm open to working with big and small companies and individual clients. - I'm comfortable signing an NDA. - Prefer long-term collaboration. - Ready to work 30-60 hours per week I'm open to various projects and would love to show you my creative side too. My commitment to continuous learning keeps me updated with the latest trends and technologies, allowing me to bring cutting-edge solutions to your projects and better expreince. I am giving high attention to details, ready to resolve complicated and complex challenges, always tend to offer most efficient solution. Thanks for your time Regards Rafael S.

I help companies turn electronics ideas into real, production-ready products. I am an Embedded Systems Engineer with 10+ years of experience designing hardware, developing firmware, and building connected IoT and Edge AI devices from concept to mass production. I have worked with startups, research labs, and global organizations, including collaborations with Fortune 500 companies, The University of Bristol, and PGA of America. I don’t just build circuits I build complete products that are reliable, scalable, and ready for manufacturing. What I do end-to-end • System architecture and product definition • PCB design and hardware engineering • Firmware development and optimization • Edge AI integration (TinyML, on-device inference) • Wireless connectivity and IoT cloud integration • Mechanical design (enclosure + DFM-ready CAD) • Prototype development and production support I regularly take products from idea to prototype to production-ready hardware. --- Core expertise Embedded hardware development • ESP32 • Nordic (nRF51, nRF52, nRF91) • STM32, STM8 • Raspberry Pi platforms • NXP, Snapdragon, BeagleBone • NVIDIA Jetson AGX Orin • Google Coral Edge TPU • Axelera Metis AI Platform • EdgeCortix SAKURA • ARM Cortex controllers • Texas Instruments MSP and CC series • Atmel AVR and Arduino I design reliable embedded systems used in IoT devices, industrial equipment, wireless products, and research hardware. --- PCB design and hardware engineering Tools • Altium Designer • KiCad • EagleCAD • OrCAD Services • Schematic design • Multilayer PCB layout • High-speed PCB design • RF and wireless board design • Design for manufacturing (DFM, DFA) • BOM optimization and cost reduction • Production-ready manufacturing files --- Firmware development • Embedded C and C++ • FreeRTOS • Embedded Linux • Driver and low-level development • Low-power firmware optimization --- Edge AI • TinyML and on-device AI models • Sensor data processing and inference at the edge • ESP32 / ARM-based AI deployment • Reducing cloud dependency with real-time intelligence • AI-enabled IoT product design --- Communication and connectivity • Bluetooth, BLE, BLE 5 • WiFi • LoRa, LoRaWAN • NB-IoT • Thread, Zigbee • NFC, RFID • CAN • UART, SPI, I2C, USB, Ethernet Cloud and protocols • MQTT • HTTP • AWS IoT, AWS Lambda and cloud integration --- Mechanical design • Enclosure design for embedded products • 3D CAD modeling (production-ready) • Thermal and space optimization • Design aligned with PCB and manufacturing constraints • Support for injection molding and prototyping --- IoT product experience • EdgeAI Device for ATM • High-Speed Autonomous Surveillance Drone (350–400 km/h) • AI Personal Assistant • Smart Home Automation Systems • Wireless IoT Sensors • Industrial Monitoring Systems • GPS and Tracking Devices • Medical and Research Hardware • Automation Controllers • Cloud-connected Embedded Devices --- What I deliver • Production-ready PCB designs • Stable, optimized firmware • Functional hardware prototypes • Edge AI-enabled intelligent devices • Hardware debugging and performance optimization • Complete manufacturing support and documentation --- Client feedback “Bhavin is such a fantastic developer to work with. He was professional and handled all modifications seamlessly. He also immersed himself in the problem and provided unique solutions to the hardware and software challenges.” “I would happily employ Bhavin again. He is extremely efficient, works very fast, and communicates very well. The product was delivered on time and worked perfectly.” --- If you are building a new hardware product, IoT device, or Edge AI system, feel free to reach out to discuss your project. Best regards Bhavin Vaghela

I was or still am involved in many projects : - vending machines firmware development for major Italian coffee machines producer, using Qt and STM, - MMORPG game server development from ground up for upcoming new game, - big MES (Manufacturing Execution System) project. The system was designed by our team and is constantly expanded to meet customers' needs. I enjoy gamedev, UI, programming daemons, servers and communications programs. I find it easy to write in any environment.

I am a senior software developer with broad expertise in programming languages, application development, and embedded systems. I thrive in environments that challenge me to grow while contributing to innovative projects. I aim to create solutions that promote continual growth and collaboration while delivering high-quality results. I bring a blend of problem-solving skills, strong programming fundamentals, and a passion for clean, well-documented code. My commitment to client satisfaction ensures that every project I undertake meets expectations in both performance and reliability. My Experience and Skills: Desktop Application Development (prototype POC or refined final) Gstreamer, Nvidia Deepstream and Nvidia Jetson Embedded Systems & Sensor Integration C, C++, C#, Java, and Python Programming Git & Version Control CMake Build System Why Work With Me? 100% Quality Assurance: Every project is delivered with attention to detail and high standards. Timely Delivery: I respect deadlines and always aim to deliver on time. Readable & Well-Commented Code: Clean, maintainable code with proper documentation for easy understanding. Excellent Communication: I listen carefully to your requirements and keep you updated throughout the project. Unlimited Revisions: I work until you’re completely satisfied with the outcome. Client satisfaction is my top priority. Let’s collaborate to bring your project to life!

I have developed a wide range of desktop products, using C, C++, STL, Win32, Visual C++, MFC, COM, QT and C#, and Office Addin development. During my work in five Product Engineering teams, I have also created functional requirements, defining the scope of work , proof of concept, software design, software development, and client interfacing. Besides being an Individual Contributor, I have also played Techno Managerial roles - requirement gathering, software design, work breakdown, and end to end implementation of projects within the scheduled time . I also have experience on UML, Software Architecture and creating software roadmaps.

Hi, my name is Arsen. I’m a Senior C++ and Python developer with 5+ years of experience building software for Linux, Windows, and embedded systems. I focus on clean, efficient, and reliable solutions for low level, backend, and performance critical tasks. What I bring to projects: • C/C++ development: STL, Boost, Boost ASIO, Qt, WinAPI, OCCI, V8, POSIX, multithreading • Python development: automation tools, data pipelines, backend logic, Django • Database engineering: Oracle, SQLite, MongoDB, data export tools, batch processing, custom type conversion • Linux systems programming: networking utilities, driver level interaction, Linux kernel headers, OpenWRT, desktop and CLI tools • Wireless and low level networking: Generic Netlink, nl80211, libnl/libmnl, Wi Fi scanning tools, protocol and frame parsing • Reliability and performance: profiling, transactional workflows, data integrity focused design, Dockerized builds, CI/CD with TeamCity • Cross platform delivery: Linux and Windows applications, Make, CMake, Conan, Git/SVN, GDB, Valgrind, Doxygen, Bash I have built tools ranging from high performance Wi Fi scanners in C that interact directly with the Linux wireless stack, to cross platform C++ command line utilities that export Oracle data into SQLite with transactional safety and performance profiling. I am comfortable working close to the system, optimizing throughput, handling large datasets, and designing software that is maintainable and stable in production. Clients usually trust me with complex backend, systems, and infrastructure related tasks where performance, correctness, and long term reliability matter. If you are looking for a developer who can work on C++, Python, Linux internals, networking, or data heavy applications, let’s talk. 🙂

Software & Hardware generalist with experience in Computer Graphics, Computational Geometry, Image Processing, Hardware prototyping, Scripting & Automation I'm good at Developing Software/Hardware Systems from scratch. Technical skills: 1. Desktop Application Development: ✓ Qt application ✓ C++ ✓ PyQt ✓ Solid Principles ✓ Software architecture ✓ GoogleTest 2. Computer Graphics: ✓ OpenGL ✓ CGAL ✓ Compute Shaders ✓ three.js ✓ pyntcloud 3. Embedded Development: ✓ PCB design ✓ Communication Protocols ✓ Arduino ✓ Hardware Prototyping 4. Others: ✓ Blender Addon/Scripts Development ✓ OpenCV ✓ CAD modeling / 3D printing ✓ Performance Optimization ✓ Reinforcement Learning ✓ Git ✓ Django ✓ GIS & maps ✓ javascript/typescript ✓ webpack ✓ REST API ✓ AWS Lambda and API Gateway ✓ CI/CD ✓ Airtable ✓ Softr Looking forward to building long-term business relation with clients

Real-time Computer Vision & Edge AI engineer with a deep C/C++ systems and embedded background. I build AI that runs live on real hardware - not just in notebooks. My focus is real-time video analytics on the edge: object detection, tracking, recognition, and TensorRT/CUDA optimization deployed on devices like NVIDIA Jetson. A strong C/C++, embedded, and Linux systems foundation means I care about the whole system - latency, memory movement, post-processing, UI smoothness, deployment, and failure cases - not just model accuracy. I also build LLM-powered applications that connect models to tools, documents, APIs, and business workflows (RAG, tool calling, automation). Recent work - VisionGuard AI: real-time retail shelf recognition on Jetson Orin NX - Live RTSP video analytics on edge hardware - Dense product detection with GPU-side post-processing - Stable object tracking across frames - Embedding-based SKU recognition - Unknown-product rejection instead of forced labels - Runtime recognition updates without restarting the camera stream - Smooth UI overlay under dense shelf conditions I can help with: - Real-time computer vision systems - YOLO / custom detection pipelines - TensorRT, CUDA, Jetson optimization - Multi-camera RTSP video analytics - Edge AI deployment and debugging - LLM apps with RAG, tool calling, and workflow automation - Python/C++ AI backend integration Core stack: C++ - Python - Qt6 - TensorRT - CUDA - YOLO - OpenCV - RTSP - NVIDIA Jetson - Linux