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’m a software engineer with more than 7 years of experience building reliable, high-performance software. I specialize in creating custom desktop applications, AI-powered tools and automation systems that help businesses save time, reduce manual work, and improve productivity. I can design and develop complete solutions from concept to deployment. Whether you need a powerful desktop application, task automation, data processing tools, or a custom AI-enhanced system, I can build software tailored to your business needs. What I can help you with: - Custom desktop application development. - AI-powered desktop tools for business workflows. - Task automation and process optimization - Data processing and scripting. - Custom software for specific business needs. - Web application development. Technologies I work with: C / C++ Python Rust Neural Network, Pytorch, ONNX, Transformers, HuggingFace, AWS. Web technologies for full web applications I focus on writing clean, efficient, and maintainable code and delivering solutions that are practical, scalable, and easy to use. My goal is to help clients turn ideas into working software that solves real problems. If you’re looking for a developer who can build custom software, automate complex tasks, or create AI-powered applications, I’d be happy to help.

8+ years of professional experience delivering production software across Desktop, Android, Web, and Embedded/IoT - for industrial, research, and hobbyist clients. Top Rated Plus with $300K+ earned and 11,000+ hours on Upwork. I work as a generalist who ships end-to-end: from PCB and firmware up to dashboards, mobile apps, and cloud integrations. I also leverage modern AI-assisted development (Cursor, Claude, Copilot) to ship faster without compromising quality - pairing it with strong fundamentals in C/C++, debugging, and architecture. What I can build for you: - Cross-platform Desktop apps - Qt, .NET (C#/VB.NET), C++ - Android apps - Java/Kotlin, BLE, GPS, hardware integration - Web apps & dashboards - JS/TS, REST APIs, IoT dashboards, Webflow CMS - Embedded & IoT - AVR, ARM, ESP32/ESP8266, Arduino, Embedded Linux - PCB Design - KiCAD, Eagle, EasyEDA - Connectivity - MQTT, BLE, LoRa, GPRS, RF, TCP/IP, RabbitMQ Languages & tools: C, C++, C#, VB.NET, Java, Python, Go, Swift, JS - Qt, .NET, Android Studio, PlatformIO, Xcode - MySQL, SQLite, JSON - Linux, Windows, macOS, Embedded Linux, Android. Long-term collaborations welcome - I'm currently supporting multiple clients on monthly retainers (sensor monitoring, IoT dashboards, embedded device support). Let's talk about what you're building.

Professional Software Developer: Embedded Systems, Machine Learning, and AI-based system development Core Competencies - Embedded Systems Development - Machine Learning and AI - Image Processing - IoT and Industrial Automation - Cross-platform Application Development Technical Skills - Languages: C/C++, Python, JavaScript - Frameworks: Qt, ESP-IDF, STM32 HAL, TouchGFX, Avalonia UI, Arduino, Circuit Python, Zephyr RTOS - ML/AI: TensorFlow, PyTorch, Keras, scikit-learn - Image Processing: OpenCV - Web Development: Flask, Django, FastAPI, Node.js - Microcontrollers: STM32, Espressif, nRF52, RP2040 - SBCs: Raspberry Pi, NVIDIA Jetson, Radxa, Orange Pi - Communication Protocols: RS232, RS422, RS485, SPI, I2C, Modbus, CAN-Bus, Bluetooth, WiFi - IoT & Industrial: PLC automation, Hawkbit (OTA updates) - Mobile: Android and iOS app development for embedded devices Specialized Knowledge - Embedded Linux (device drivers, root file systems, video streaming) - Zephyr RTOS development - ROS - Engineering system design - IoT gateway development - Scripting

I'm a full-stack developer with 8+ years of industry experience in building web (backend + frontend) applications, ETL jobs, microservices, REST APIs and desktop applications. I also specialize in developing 2D / 3D CAD software, and geometry related algorithms. I have strong problem-solving skills and a deep foundation in algorithms and data structures — experience that comes from years of competitive programming and later training students at a national level. I work with, - Algorithms      :      Big O, Time Complexity, Graph theory, DP, Greedy, Data Structures, Geometry, etc. - Languages     :      Java,    JavaScript,    Python,    C++,    C# - Backend        :      Spring Boot,   Node.js / Express.js,    .NET, Flask - Frontend           :      React,   Vue.js,    HTML,    CSS - Desktop         :      Qt,    .NET,   Unity,    OpenGL - Mobile          :      Android SDK - Databases             :      PostgreSQL,    MySQL,    MongoDB,    Firebase - DevOps / Cloud     :      Kubernetes,    Docker,    AWS,    GCP,    nginx,    Jenkins,    Argo, Cron Jobs - Data / Distributed    :      Kafka,    Spark,    Elasticsearch - AI             :      Classical ML algorithms,    Neural Networks,    LLMs,    OpenAI API, Google Vertex AI - Testing         :      Jest,    JUnit,    Functional / Unit / Integration / E2E testing (willing to try out new technologies, depending on the requirements & project size)

Dear Viewer, “Without big data analytics, companies are blind and deaf, wandering out onto the web like deer on a freeway.” (Geoffrey Moore, author and consultant) I'll help you getting High Quality, Accurate Data that'll add value to your business. I'm well verse in Python and C/C++. My area of expertise are web scraping/crawling, data interpretation, data scraping, data analysis and data structures. I am a freelancer on full-time so you can expect results within few hours depending on the project. I have developed software solutions to crawl and extract different types of data from various websites, e.g. social networking sites, e-commerce, business listings and other related data sources. If you decide to work with me you can expect a high level of dedication and passion in the project we do together. I will try hard to adapt my knowledge and experience to your needs and I will always put a special emphasis on a creative solution. I have scraped data from websites that require parsing JavaScript/AJAX and Login Secured. I've rich experience in avoiding IP blocking with Proxy server and have scraped big data on a server like AWS, DigitalOcean. I can provide scraped data in whatever format is required: csv, json, MySQL, PostgreSQL, NoSQL (mongoDB), txt. Looking forward to working with you soon. Thanks

🌟 Top-Rated Mobile App Developer | Android • iOS • VPN • IoT Hello! I'm Shahzain Ali, a Mobile & Desktop App Developer with 8+ years of experience building high-quality Android, iOS, desktop, wearable, and VPN applications. I specialize in Kotlin, Swift, Java, Python, and C++ (Qt) — delivering fast, reliable, and scalable solutions for clients worldwide. 💼 What I Do ✔ Android Development: Kotlin, Java, Jetpack, Room, Maps, Sensors ✔ iOS Development: Swift, SwiftUI, Authentication, In-App Purchases ✔ Desktop Apps: Python (Tkinter), C++ with Qt Framework ✔ Watch Apps: WearOS, watchOS, Samsung Tizen ✔ VPN Expert: OpenVPN & WireGuard integrations for Android, iOS & Desktop ✔ IoT & Embedded: BLE, Arduino, ESP32, NodeMCU, sensor integrations ✔ Cloud & Serverless: Firebase Auth, Storage, Realtime DB 🛠️ Tech Stack Languages & Tools: Swift, Kotlin, Java, Python, C++, SwiftUI, CMake, Android Studio, Xcode, Qt, Tkinter Databases: SQLite, Room, Realm APIs & Integrations: Google, Facebook, Stripe, PayTabs, Maps, Biometric Auth 🌍 Why Clients Choose Me 70+ mobile apps delivered for clients in the USA, Germany, UK, UAE, and beyond Strong knowledge of MVC, MVVM, clean architecture Deep expertise in payment systems, authentication, and geolocation Excellent communication, fast delivery, and clean, maintainable code Developer community contributor with 200K+ reach on StackOverflow ✨ Client Testimonials “Perfect developer, adheres to schedule, highly motivated specialist for any complex task. Will hire again for sure.” “Good experience working with Ali. He has a great attitude and does his best to help.” If you're looking for a reliable, experienced developer who understands both mobile and system-level technologies, let's work together to build something amazing.

💼 Profile Overview 🚀 Top Rated | $1M+ Earned | 20K+ Hours | 160+ Successful Projects I’m a Senior Software Engineer & AR/VR Developer with over a decade of experience delivering high-performance, technically complex applications across multiple domains — from computer vision and deep learning to 3D simulation and cross-platform development. My clients include startups, research institutions, and enterprise teams looking for reliable, scalable, and innovative software solutions built with precision and performance in mind. 🧠 Core Expertise 💻 C / C++ / Python / Qt / Unity Highly optimized C++ development (TBB, MKL, BLAS, LAPACK, IPP) Multithreaded, performance-critical applications Complex algorithms and data structures Desktop apps using Qt (Windows, macOS, Linux) 🧩 Computer Vision & Deep Learning OpenCV, OpenGL, ITK, VTK, MKL DICOM image processing & medical imaging (ITK) YOLO, Detectron, TensorFlow, PyTorch, Caffe Automated data annotation pipelines 🕶️ AR / VR / XR Development Unity3D for mobile, desktop, and enterprise AR & VR apps for HoloLens 2, Oculus, and Mixed Reality platforms Integration of advanced vision models into immersive environments 📱 Cross-Platform & Mobile Integration Android & iOS development with native C++ plugin integration Video/Audio streaming using FFmpeg, GStreamer, LibVLC Real-time communication & networked systems ⚙️ Additional Skills SQA & UI Automation (Selenium) Scientific software & algorithm development Custom tools for data visualization, annotation, and analytics 🏆 What Clients Say ✅ “Delivered exactly what we needed — top-notch technical depth.” ✅ “One of the most professional developers we’ve ever worked with.” ✅ “Understood complex vision algorithms better than our in-house team.” 🔍 Why Choose Me? Proven Top Rated track record on Upwork Over $1M earned with 100% job success Trusted by clients for technical excellence and reliability Strong communication, fast delivery, and long-term project support 📩 Let’s Build Something Extraordinary Whether you need a vision-powered AR app, a high-performance C++ engine, or a deep learning-based system, I can help you take your idea from prototype to production with precision and performance. Let’s connect and discuss how I can bring your project to life.

I was working in many projects. Some things which I was programming - Messengers, Trading Bots, Notepads, IDE, Design Software, Mods to Games, Automatization of Oil Company (modbus, opc, etc...) and many others. I am open to new and ready to join your startup! My key skills: Strong c++: - multi-threading, - networking, - boost Key Qt skills: - QML, - QSS, - Qt WebEngine, - Qt Installer Framework Databases: - MySQL, - Postgres, - SQLite Linux/Unix: - system programming, - bash scripting Strong lua: - work with nginx, - dynamic libraries Skills in mathematics: - numerical methods, - higher mathematics

I have been programming in C/C++ for 20+ years developing embedded/flight, high-performance computing, and graphical interface software in Windows and Linux. My specific areas of experience include Real-time embedded software for robots and drones in C and CUDA High performance computing and simulations Lidar sensor systems and point cloud processing User Interfaces, particularly in OpenGL and Qt