Hire the Best C++ Programmers & Developers
in Armenia

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 build high-performance C++ systems - network servers handling thousands of concurrent connections, security solutions processing millions of events, trading platforms with 5μs latency. 19 years of experience, $1M+ earned on Upwork, 100% Job Success. 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 & 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 Client-server applications, proxy servers, high-throughput data processing. I write cross-platform code that runs identically on Windows, Linux, and Unix. 𝗖𝘆𝗯𝗲𝗿𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 Privileged Access Management systems, anti-phishing email gateways, encryption and cryptography. I work extensively with OpenSSL, Botan, Crypto++, and Bouncy Castle. 𝗥𝗲𝘃𝗲𝗿𝘀𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 Binary analysis, protocol reverse engineering, and software internals research using IDA, Ghidra, and Frida. 𝗛𝗶𝗴𝗵-𝗙𝗿𝗲𝗾𝘂𝗲𝗻𝗰𝘆 𝗧𝗿𝗮𝗱𝗶𝗻𝗴 I designed and built an HKEX-certified trading system achieving 5μs round-trip latency between receiving market data, decision-making, and sending orders. Market data processing, order management, web API design. 𝗪𝗵𝗮𝘁 𝗜 𝗕𝗿𝗶𝗻𝗴 𝘁𝗼 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 ▸ Modern C++23, multithreading, networking, performance optimization ▸ Ability to build from scratch or take over and evolve complex existing codebases ▸ AI-augmented development - I use tools like Claude Code to accelerate routine implementation while maintaining full architectural control and code quality Feel free to message me - I typically respond within a few hours and I'm happy to discuss your project before you commit.

I help engineering teams and technical founders make the right system decisions before they become expensive — scoping what to build, de-risking architecture before irreversible choices are made, and owning delivery through to scale. My background spans cloud architecture, solution architecture, and database systems across AWS and Azure. The combination matters: most production failures I have seen trace back not to bad code, but to structural decisions made early in the schema, the system boundaries, or the deployment model — that compounded quietly until they could not be undone. I am based in Armenia and work async-first with clients across the US, Europe, and Australia. Architecture work — system design, technical reviews, decision documentation, governance frameworks — does not require timezone overlap. My clients do not experience geographic friction. 🔹 𝐓𝐡𝐫𝐞𝐞 𝐫𝐞𝐜𝐞𝐧𝐭 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐭𝐡𝐚𝐭 𝐜𝐚𝐩𝐭𝐮𝐫𝐞 𝐡𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤: 𝐆𝐃𝐂 𝐌𝐞𝐝𝐢𝐚 (𝐈𝐫𝐞𝐥𝐚𝐧𝐝) — built an LLM-assisted database audit engine running across 3 MySQL clusters and 15 production nodes. 13 independent checkers feed findings to the LLM, which grades each as Critical / Major / Minor / Trivial and writes a short, grounded explanation. Runs hands-off 365 times a year. 𝐇𝐑𝐒 𝐆𝐫𝐨𝐮𝐩 (𝐂𝐨𝐥𝐨𝐠𝐧𝐞, 𝐆𝐞𝐫𝐦𝐚𝐧𝐲) — designed and built financial data pipelines on AWS that bridge MS Navision (ERP) and SAP through a single canonical model. Safe to replay, with scheduled reconciliation. 𝐆𝐥𝐚𝐬𝐬𝐰𝐚𝐥𝐥 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 (𝐔𝐊) — Cloud Engineer on the Content Disarm and Reconstruction platform now trusted by NATO and U.S. and U.K. national security agencies. Helped adapt the platform for AWS EKS, Azure AKS, and K3s, and built the file ingress orchestration plugin handling terabytes of potentially infected files. 🧭 𝐇𝐨𝐰 𝐈 𝐰𝐨𝐫𝐤 I don't approach projects as feature delivery. I approach them as temporary or ongoing technical ownership — short engagements that clarify direction, longer ones that carry the system through to scale. The shape is the same in both: • Reduce MVP scope while keeping the core value loop intact • Define cloud architecture and system constraints before implementation begins • Make decisions explicit instead of accumulating quiet assumptions • Separate short-term delivery from long-term structural risk • Hand off to in-house engineers cleanly when the moment is right Some engagements take two weeks. Some turn into multi-year work. The goal in both is the same — systems that don't need heroics to keep running. 🎯 𝐖𝐡𝐞𝐫𝐞 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐮𝐬𝐮𝐚𝐥𝐥𝐲 𝐠𝐞𝐭 𝐬𝐭𝐮𝐜𝐤 In early- and growth-stage systems, the biggest problems are rarely about tooling or raw engineering skill. They are decision gaps: • Feature lists that grow faster than clarity • AI is treated as a black box instead of a constrained system • Developers hired before the success criteria are defined • Architectural decisions deferred until they're expensive to reverse • "We'll fix it later" choices that quietly become permanent That's the layer I focus on stabilizing first — so execution stays fast without becoming brittle. ⛁ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 & 𝐝𝐢𝐚𝐠𝐧𝐨𝐬𝐭𝐢𝐜𝐬 Production databases are where architectural decisions surface most visibly — slow queries, bloated indexes, configuration drift, schema choices that worked at 10K rows and break at 10M. I have extensive hands-on experience with PostgreSQL, MySQL, and MariaDB in high-load production environments. For teams that need a fast, structured assessment: I offer a fixed-price SQL database audit via my Project Catalog — a prioritized diagnostic report delivered in 1–2 days, ranked by business impact. 🧱 𝐒𝐭𝐚𝐜𝐤 • Databases — PostgreSQL, MySQL, MariaDB, OpenSearch, Elasticsearch, DynamoDB • Cloud — AWS, Azure, Kubernetes, Docker, serverless • Security — IAM, encryption, access boundaries, secure data flows • DevOps — CI/CD, GitHub actions, CloudFormation, observability • AI-adjacent — guardrails, confidence gating, deterministic vs. generative boundaries Technology serves decisions, not the other way around. 📅 𝐄𝐧𝐠𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐟𝐨𝐫𝐦𝐚𝐭𝐬 • Long-term architecture and delivery ownership • Fractional CTO or technical advisor • Short-term advisory (1–4 weeks) • Fixed-price SQL database audit (Project Catalog — from $750) Most successful collaborations start small and grow naturally once alignment is in place. 📨 𝐋𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 If you are unsure what to build, what to cut, or how to de-risk a critical phase — or if your database is showing signs of trouble — a short conversation usually makes sense. From there, we decide together on the right shape of engagement.

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

"Hands-down, one of the best devs I've worked with on Upwork." - ScreenStory Senior C++ Engineer with 18+ years building real-time and embedded systems, multimedia pipelines, and high-performance desktop applications. Top Rated Plus on Upwork - 9,900+ hours and $400K+ earned across 28+ long-term engagements. MORE FROM CLIENTS "Excellent in every regard: communication, work, making logical inferences, asking good questions. Truly the top of the top." - Skan AI "A very reliable, knowledgeable and professional developer who is a pleasure to work with." - Clickdrive WHAT I BUILD - Rich UI/UX and high performance desktop applications on C++/Qt, C# .Net Framework WPF/UWP/WinUI XAML - Multimedia & Real-Time Screen recording engines (Desktop Duplication API, Windows Graphics Capture, GDI), low-latency video/audio pipelines on FFmpeg, WebRTC streaming with custom builds and Janus SFU, DirectX GPU compositing with custom pixel shaders, audio DSP with RNNoise. - Embedded & HMI Industrial automation, locomotive on-board systems, HMI on Qt/QML, ModBus / RS-232/485 / Can. Codex industrial labeling software for ALE sas - Real-Time Backends SCADA alarm-module backend with high-throughput low-latency event handling, gRPC, multithreaded C++17/20 architecture. - Native Library Bindings C++ cores with bindings to Electron (Node-API), Flutter (FFI), Python. Cross-platform Windows and macOS. - Engineering Infrastructure CI/CD on Jenkins and Azure DevOps, self-hosted Sentry deployment, CrashRpt, automated quality gates, structured Git workflows. HIGHLIGHTS - 7 years as lead engineer on a portfolio of consumer multimedia and document-processing applications (architecture + implementation across a team of 3) - Locomotive driver HMI deployed on operational locomotives in real-world service - Automated engine test bench: reduced testing time by 40%, increased throughput from 6 to 10 engines per shift - Currently leading C++/MFC -> Qt migration on the Ham Radio Deluxe product suite (41,500+ active users) Core stack: C++ (17/20) · Qt (QML, QWidgets) · CMake · vcpkg · FFmpeg · WebRTC · Desktop Duplication API · Media Foundation · DirectX · MFC · gRPC · Multithreading · ModBus · Windows Embedded · C# .NET · Electron Node-API · Jenkins · Azure DevOps · Sentry WHAT I'M LOOKING FOR Long-term engagements (6+ months) where deep C++ expertise and architectural ownership matter. Equally comfortable in greenfield architecture and rescuing legacy codebases. Available for fixed-price projects and hourly contracts.

I am a C++ Developer with a strong command of modern C/C++, specializing in object-oriented design, template metaprogramming, and multithreaded application development. My work is guided by a deep understanding of computer architecture and performance optimization, enabling me to write software that is not only functional, but also efficient, scalable, and maintainable. My experience with Qt and QML allows me to build responsive, cross-platform desktop applications that combine performance with clean, intuitive user interfaces. I follow best practices in code structure, memory management, and debugging to ensure long-term stability and reliability. Technical Skills: 🧩 C / C++ (C++11/14/17/20) 🧩 GoLang 🧩 Java programming 🧩 Multithreading & Concurrency 🧩 Template Metaprogramming 🧩 OOP & STL 🧩 Qt / QML Desktop Application Development 🧩 Performance Profiling & Optimization 🧩 Cross-Platform Software Development 🧩SQL I am detail-oriented, analytical, and highly reliable. I take responsibility for the quality of my work and aim to deliver solutions that are not only functional, but also efficient, readable, and easy to maintain. If you are looking for a C++ developer who understands performance, architecture, and clean design, I would be glad to discuss your project and contribute to its success.