Linux developer: from kernel drivers till own browsers, firmwares and linux distros! Creating software for people. github: repu1sion

With 20+ years of industry experience (10+ years in embedded systems), I build high-performance real-time video and computer vision solutions. I specialize in: RTSP, WebRTC, and low-latency streaming GStreamer, FFmpeg, OpenCV pipelines Embedded Linux development (Raspberry Pi, Orange Pi, Jetson) Multi-camera systems, video recording, and synchronization AI-based video analytics (YOLO, RKNN, edge AI) I have delivered production-grade systems including: Real-time multi-camera streaming and recording platforms AI-powered video analytics solutions Embedded vision systems with hardware acceleration End-to-end video pipelines (capture → process → encode → stream) My focus is always on performance, reliability, and scalability — especially in resource-constrained embedded environments. If you need a practical expert who can bridge camera hardware, video pipelines, and real-world deployment, I can help.

Hello, With 12+ years of experience in Computer Vision and software development, I have worked with global companies to build high-performance applications. My expertise spans modern C++ development, AI-driven solutions, and full-stack application design, delivering scalable and efficient software. ✅ Computer Vision & AI Proficient in OpenCV, ONNX Runtime, TensorRT, OpenVINO, MVTec HALCON, YOLO, RF-DETR, DeepSORT, PaddleOCR, Tesseract OCR, EasyOCR, DINO, GroundingDINO, CLIP, SAM, Hugging Face Transformers, Milvus, Albumentations, Scikit-learn, and AWS SageMaker. I develop AI-driven applications for object detection, classification, segmentation, tracking, features extraction, image retrieval, and anomaly detection. I also work with ONNX to optimize AI models for deployment. ✅ 3D Point Clouds Processing Processing Point Clouds using PCL (C++) and Open3D (Python). Train custom models on spatial unorganized point clouds for 3D object detection and segmentation using PointNet++ and RandLaNet. Develop viewer applications for displaying 3D point clouds using VTK. ✅ UI/UX & Application Development I specialize in Modern C++ with Qt (Widgets & QML) and C++Builder, crafting intuitive and high-performance user interfaces. ✅ Web Application Development: Develop Web Applications for SCADA, HMI and Control Systems with using Qt QML & WebAssembly ✅ Cloud & AWS Integration I leverage AWS services (SageMaker, S3, Lambda) to deploy and scale AI/ML applications efficiently. I also integrate AWS with C++ SDK for seamless cloud communication. ✅ Networking & Web Communication Experienced in TCP/IP, REST APIs, WebSockets, and Web Services, ensuring robust connectivity and real-time communication in applications. ✅ Embedded & Industrial Communication I work with UART, RS-232/485, OPC UA, CAN Bus, Modbus, Bluetooth, and NFC, enabling seamless integration with embedded systems and industrial devices. ✅ Build, CI/CD & Version Control Proficient in CMake, Conan, Docker, Jenkins for build automation and Git, Mercurial for efficient version control and collaboration. Whether you need a high-performance application, AI-powered computer vision solution, or cloud-integrated system, I bring efficiency, scalability, and reliability to your projects. Let's build something exceptional together! Yours Sincerely, Mahmut Veli

I am an ACM-ICPC World Finalist and software engineer. I have been developing backend and DevOps solutions using C++, Java, and Python since 2016. I have experience in multiple domains that include fintech, agrotech, health tech, IoT, and Saas. I have been working as a remote developer with globally distributed teams since 2019. I am a quick learner, good with communication, proactive and punctual human being. Nothing excites more me than a challenge that is necessary but difficult to solve. I am also a competitive programmer and expert in data structures and algorithms. I have a decent understanding of UNIX systems especially how different types of data structures are blended to solve complex problems of operating systems. I am a team player and can work as solo as well. I never compromise the quality of my work doesn't matter how the pressure is. And, I believe in requirement analysis as the most crucial part of engagement.

With over 8 years of industry experience, I am a highly skilled C++ engineer with extended experience in Desktop Software/Architecture development. Have created and extended both: console and GUI applications. The applications I create are developed using best practices and design patterns, including GoF, GRASP, and SOLID. Technical Expertise: - Programming Languages: C++ (11, 14, 17, 20), Assembly, SQL, Python; - Technologies: STL, Qt 4.x – 6.x, WinAPI, MFC, ATL, Boost, WebView2; - Development Tools: Microsoft Visual Studio (2003 - 2022), MSBuild, vcpkg, GitHub, VS Code, CMake, QtCreator, GCC, WSL2, Keil 5, AVR Studio, Atmel Studio; - Database Systems: SQLite, MS-SQL; - Version Control: Git, Perforce, SVN; - UML: Any GUI UML editor, PlantUML; Core Competencies: - High-performance GUI applications using Qt Framework (QtWidgets, QML); - Multithreading; - Console applications, pure WinAPI applications, Windows Services, and system applications Interprocess communication; - Serial communication, hardware integration, and custom protocol design; Let’s connect and explore how I can contribute to your next project!

25+ years in Software Development Available for 40-60 hrs./wk. Excellent references from CEOs of the companies. Bringing products to market: inception, spec, architecture, implementation, testing. Seeking for software development projects in the following areas on Windows Platforms: - Recent successful GPT-3/3.5/4 API experience with C#, DALL-E interface, and OpenAI Whisper. - Experience of developing RAG Web Service enabling chatting with private corpus of documents, based on Azure Cognitive Search SDK, Azure OpenAI API and Azure Cosmos Vector DB for vector, hybrid, and semantic search. Segmenting Word/PDF/Excel/CSV/Text documents, embeddings, and ingestion. - Worked with ML.NET in VSTO Outlook Add-In environment for email classification. - Experience with Text-To-Speech and Speech-To-Text using AWS, Azure, Google, Eleven Labs, and other vendors. Experience with Google Voice Services, including Diarization (recognition of different speakers and designation in the transcript), and Medical Transcription. Able to produce STS (Speech-to-Speech) application - interacting with ChatGPT over microphone and speakers. Recent Development Experience of TTS with OpenAI. - AI Training of basic GPT models using fine-tuning, and embedding techniques with vector databases, such as Pinecone, Qdrant, and Milvus APIs. - OpenAI Completion and Embeddings API, GPT-3/3.5/4, Whisper API for Transcribing and Translation - Azure Semantic Kernel, Azure Data Explorer (ADX), Azure Blob Storage, Azure Analytical Services. - AWS Text-To-Speech, AWS Storage - Web Services: REST-API, ASP.NET Framework and Core, WCF Web Services, Microservices - Azure Active Directory Authentication from Desktop Applications in C# - Desktop applications with C#/.NET Framework/.NET Core, WinForms, WPF, DevExpress - Microsoft Office VSTO/COM Add-Ins for Outlook, Excel, Word, and PowerPoint - Client/Server Systems: Sockets and high-level protocols, such as HTTP, FTP, MQTT - Windows Services - Microsoft Dynamics 365 - Hardware Interface: USB/RS232/RS485 Technologies and Frameworks: - Languages: C#, C/C++, Python, MicroPython, XML, JSON - Databases: SQL, SQLite, MySQL, Entity Framework 6/Core and LINQ. - Networking: Sockets (.NET and Winsock), REST API, WCF, HTTP, FTP, MQTT, packet-level TCP/IP, - Serial (RS232/RS485), MODBUS. - IDE: Visual Studio 2010 through 2022 - Office Add-Ins: VSTO Add-ins for Outlook, Excel, Word, PowerPoint. Add-In Express Framework. - VOIP: PJ SIP Stack with DBUS, Asterisk, Open Phone Abstract Library (OPAL) - Active Directory/LDAP/ADSI - Monte Carlo Simulations in C# - Linux: C/C++ and Python with MQTT Development on Ubuntu and Raspbian. - AES256 Encryption, Monte-Carlo Simulations, SHA256, PGP/GnuPG PKI (Public Key Infrastructure) Application binaries signing (Authenticode), Security Certificate generation in code based on CA. - Installers with Advanced Installer, Deployment strategies. - Product Licensing

Top 1pct Expert-Vetted Software Developer with 25 years of experience across various platforms: embedded, desktop, web and mobile. Specialising in C++, Python, C#, PHP, TypeScript and JavaScript. Databases MSSQL, MySQL, PostgreSQL. I'm experienced in code development, software architecture design and project management. I have worked on a wide range of desktop applications for Windows, OS X, and Linux. Participated in the massive commercial projects. Developed numerous web, desktop and mobile apps according to the clients' requirements.

Welcome to my Upwork profile! I'm Hassan Ahmad, a dedicated and results-driven Full Stack developer with 10 years of hands-on experience in crafting robust and high-performance software solutions. I'm passionate about writing clean, efficient, and maintainable code that powers the backbone of micro services based applications and services. **What I Bring to the Table**: 🚀 **Expertise**: I specialize in C/C++ development, and I have a proven track record of building scalable and reliable backend systems for a diverse range of projects. 🔧 **Problem Solver**: I thrive on tackling complex challenges. Whether it's optimizing algorithms, improving database performance, or troubleshooting critical issues, I'm up for the task. 🌐 **Web Development**: I'm well-versed in developing backend APIs, microservices, and server-side applications for web and mobile platforms. I can seamlessly integrate your front-end with the backend, ensuring a smooth user experience. 🔒 **Security**: Security is paramount in today's digital landscape. I implement robust security measures to protect your data and applications from threats and vulnerabilities. 📈 **Scalability**: As your project grows, I ensure that the backend can handle increased traffic and data volumes. I design scalable architectures that evolve with your business needs. 🤝 **Collaboration**: Effective communication and collaboration are key to a successful project. I'm responsive, easy to work with, and committed to meeting deadlines. **My Skills**: - C/C++/Python/JavaScript/NodeJS/ReactJS/ Programming Languages - API Development - Database Design (SQL/NoSQL/MongoDB/Postgres/Redis) - Performance Optimization - Shared Memory based containerization of multi-threaded, concurrent synchronized micro services - Docker / Kubernetes Containerization - Linux/Unix System Administration - Version Control (Git) - RESTful Web Services - Protocols I worked on SSL | TLS | SIP | RTP | VoIP | HTTPS | WebSockets | MQTT | SNMP | MODBUS | I2C | RS232 | RS485 | TTL | SPI | SDIO | USART | UART | Opensip | OpenVPN - Test-Driven Development (TDD) **Why Choose Me**: When you hire me, you're not just getting a developer; you're getting a partner who is genuinely invested in the success of your project. I take pride in delivering high-quality code on time and within budget. I'm always eager to learn and adapt to new technologies, ensuring that I stay at the forefront of development trends. If you're looking for a skilled Full Stack developer who can turn your vision into a reality, let's chat. I'd love to hear about your project and how I can contribute to its success. Let's build something great together !

Top 1% Upwork specialist in AI & Embedded Systems. I architect and build solutions using LLMs, CV, and C++/Qt on Nvidia Jetson. My focus is turning your ambitious vision into a reliable, high-performance product. As a Georgia Tech graduate with over 10 years of hands-on experience, including foundational work in the autonomous driving sector of German automotive industry, I partner directly with clients to solve their toughest technological challenges. I am committed to writing clean, efficient, and test-driven code, ensuring your project is built for scalability and long-term success. Here's where my expertise lies: ✅ Intelligent AI, LLM & Agentic Systems Generative AI & LLMs: I architect advanced solutions using the OpenAI API, Gemini, Llama 3, and custom models, specializing in Retrieval-Augmented Generation (RAG) for powerful, context-aware applications. Agentic AI: I build autonomous AI agents that can reason, plan, and execute complex tasks. Full-Stack ML: I manage the entire machine learning lifecycle, from data processing and model training (YOLO, TensorFlow, PyTorch) to robust deployment. ✅ High-Performance Computer Vision (CV) Algorithm Optimization: I have proven experience in optimizing state-of-the-art detection, tracking, and stereo vision algorithms for maximum performance on edge devices. OpenCV, NVIDIA Jetson & DeepStream: My expertise includes deploying real-time vision applications using the complete NVIDIA toolkit, including FFMPEG, GStreamer, TensorRT and DeepStream. ✅ Robust Embedded Systems & Software C++ & Qt Development: I craft high-performance, cross-platform applications with clean C++ and the Qt framework. Embedded Linux & Hardware: I am highly adept at developing for a wide range of platforms, including ROS, Nvidia Jetson, STM32/STM32MP1, Raspberry Pi, and BeagleBone. Protocol Specialist: I have worked on numerous communication protocols like CAN, CANFD, SomeIP, TAPI, Flexray, RSMP, BACnet, OPCUA, MQTT, TCP/IP, UDP/IP, RSTP, ONVIF and many others. When you hire me, you are partnering with a dedicated, top-rated expert who is personally invested in delivering results.

I specialize in performance-critical C++ code, focusing on optimizing hot paths — the parts of your application where execution time actually matters. I go beyond Big-O complexity to analyze real runtime cost, including memory access patterns, allocations, and hidden overhead in abstractions. I identify bottlenecks quickly and refactor code to improve cache efficiency and eliminate unnecessary work. I build cross-platform desktop applications with a strong foundation in Object-Oriented Programming, Data-Oriented Design, and advanced data structures — resulting in code that is efficient, maintainable, and built with performance in mind. I can also support your project with: - containerization [Docker] - scripting and automation [Python / Go] - testing and reliability improvements Additional strengths: - deep understanding of real computational cost (beyond theoretical complexity) - identifying hidden performance costs in STL and abstractions - refactoring from polymorphic designs to data-oriented, cache-friendly structures - explaining complex C++/STL concepts in a clear and practical way