Hire the Best C++ Programmers & Developers
in Armenia

Software engineer with 10+ years of experience and a 100% Job Success Score on Upwork. I build games, full-stack web applications, and AI-powered solutions — and I’m always honest about what I can deliver. I’m David Galstyan, from Armenia. Programming has been my passion since my early teens, and I’ve worked professionally as a software engineer since 2015. I believe people should do what they’re good at — and this is mine. What I can help you with: • C/C++ & STL — high-performance, clean, well-structured code • C# & Python — application development, automation, and backend logic • Game development — Unity and Unreal Engine • Full-stack web — building complete, responsive web applications front to back • AI engineering & computer vision — object detection, image recognition, and AI-powered features Strengths: • Strong foundation in OOP, data structures, and algorithms (including their complexities) • Detail-oriented team player who works well with cross-functional teams • Fluent English, both conversational and technical • Strong desire to learn new technologies, with solid analysis and problem-solving skills Send me a message and let’s talk about your project.

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 help companies build reliable, high-performance C++ software — from multithreaded systems and performance optimization to AI-powered features that scale in production. I specialize in modern C++, system design, concurrency, Qt, networking, and performance-critical applications. I help teams solve complex engineering challenges such as improving application speed, designing robust architectures, debugging difficult issues, and building maintainable software. With 10+ years of software development experience, I have worked on challenging projects across desktop applications, embedded systems, cross-platform software, and backend technologies. My experience includes C++, Qt, Linux, Windows, macOS, gRPC, Protocol Buffers, multithreading, debugging, and optimization of complex systems. My approach: • Understand the business and technical problem before writing code • Design solutions that are reliable, maintainable, and scalable • Write clean, efficient C++ following modern best practices • Communicate clearly with regular updates and transparent progress I focus on delivering production-quality software, not just completing tasks. Whether you need performance improvements, a new C++ feature, architecture guidance, or help solving a difficult technical problem, I can help. If you have a challenging C++ project and need an experienced engineer who can work independently and deliver high-quality results, feel free to send me a message.

Passionate Unity Developer | C# I'm a dedicated Unity developer with a profound understanding of C#. With over five years of experience in Unity development, I've been crafting immersive experiences and bringing ideas to life since 2018. Currently, I’m working as a Unity Developer in a mobile games development company, where I’ve been contributing for more than two years. During this time, I’ve gained invaluable experience working in teams and delivering successful projects. Now, I’m excited to start my freelance career and offer my skills to bring your ideas to life. My expertise includes: * Developing stunning 2D games that stand out and feel alive. * Creating engaging gameplay mechanics and ensuring polished user experiences. * Collaborating effectively within teams to deliver high-quality projects on time. * Making structured and readable code and a workable build. Let’s work together to make your vision a reality!

I bridge the gap between low-level system efficiency and cutting-edge decentralized technologies. With a deep focus on Modern C++ optimization, I build robust, scalable applications where every millisecond and every byte of memory counts. My expertise spans from professional Audio Plugin development to high-stakes Smart Contract security analysis and Generative AI infrastructure. Proprietary Cryptographic Engines: Architecting and developing custom Cryptographic Engines from scratch, tailored for specific security requirements and hardware constraints. Implementing high-speed encryption/decryption algorithms (AES, RSA, ECC) with optimized assembly or SIMD instructions. Ensuring mathematical rigor and resistance to side-channel attacks for private networks and decentralized protocols. System-Level Optimization & Security: Bare-metal programming and firmware development for embedded systems and specialized computational units. Performing deep-level code audits to eliminate memory leaks, race conditions, and security vulnerabilities at the binary level. Developing secure boot protocols and encrypted data-at-rest solutions for sensitive industrial and medical environments. Systems & Desktop Development (C++ / Qt / JUCE) Developing high-performance, cross-platform desktop applications using the Qt Framework and QML. Expertise in Modern C++ (17/20/23) standards, focusing on memory safety, multi-threading, and low-latency execution. Specializing in Audio Engineering: Designing custom VST/AU plugins and Digital Signal Processing (DSP) algorithms. Medical Device Control & Automation: Developing robust, real-time control software for diagnostic equipment and laboratory automation. Crafting mission-critical User Interfaces (UI) using Modern Qt/QML for medical monitors and device consoles. Seamless hardware-software integration for automated laboratory workflows. Blockchain & Web3 Security: Comprehensive Smart Contract Auditing (Solidity/EVM) to identify critical vulnerabilities and logic flaws. Advanced Gas Optimization: Reducing execution costs through deep bytecode analysis and efficient data structures. Developing automated tools for blockchain security assessment and formal verification. AI, Machine Learning & Automation: Architecting Generative AI workflows using ComfyUI, Stable Diffusion, and custom node development. Integrating computer vision models like YOLOv8, SAM, and LivePortrait into production environments. Managing high-load computational tasks on Cloud GPU infrastructure for seamless model inference and training.

Hello, everyone! My name is Sergey, and I have worked in the production of commercial electronics for many years. What I do best: 🛠 Embedded Systems Expertise: ✅ Low-level programming (C/C++), Python ✅ Skilled in real-time systems (FREERTOS) and OTA updates ✅ Expertise in communication protocols: I2C, SPI, UART, RS485, CAN, USB, Ethernet, MODBUS ✅ Expertise in peripheral integration: sensors, displays, motor drivers, EEPROMs ✅ Wireless IoT: WiFi, BLE, LoRa, FSK, 4G modules ✅ Hardware debugging with tools like JTAG, oscilloscopes, and logic analyzers ✅ PCB Design & Layout ✅ Electrical Engineering 🛠 Power Optimization: ✅ Low Power Design: Achieved <15µA sleep current in battery-powered IoT devices 🛠 Tools & Technologies: ✅ IDEs: STM32CubeIDE, VSCode+Platformio, ESP-IDF, Arduino IDE ✅ Platforms: STM32, ESP32, Raspberry Pi ✅ Web/Mobile: Flutter, Node-Red ✅ Version Control: Git, GitHub ✅ Protocols: TCP/IP, MQTT, MODBUS 💬 Let’s discuss how I can accelerate your embedded project