Main specialization – C++ (STL/MFC, QT, PostgreSQL, C# - on board). 15+ years of experience. Open to start new project on following tech stack: 1. Web: Python (any web framework), React, React-Admin, PostgreSQL, Dockers, Amazon Web Services, FreeSwitch. 2. Desktop, client/server solutions: C++, QT Framework, QML, ModBus, C#. Last few years work with C++ on Debian (PostgreSQL, ncurses, thermal printer). Recently extensively switched to QT framework (Music Score scanning software). Had a chance to use general logic experience to lead engagement projects in completely unknown for me areas like Lotus Notes/Domino, software for greenhouse heating systems construction, some projects on Delphi. Searching clients for cooperation to outsource software products development. My formula: Scope of Work – Time – Budget (W-T-B). W-T-B key principles: - establish project required development process; - define milestones; - provide “access points” for process control from a client side; - self-documented code; - quality assurance; - support.

💡 22 Years of Expertise Across Diverse Technologies, Industries & Marketing Channels 🔍 About Me I’m an accomplished Software Engineer, Developer, and Solutions Architect with extensive experience across multiple programming languages, frameworks, and industries — combining strong technical depth with strategic marketing and SEO expertise to deliver solutions that perform and grow. My career spans over two decades, giving me a rare ability to bridge technology and business — ensuring every system, app, or website I build is optimized for performance, scalability, and discoverability. 🛠 Areas of Expertise ✅ Programming Languages: C, C++, Objective-C, C#, Java, Erlang, VB, ASP, ASP.NET, Perl, Python, PHP, Rust ✅ Frameworks & Technologies: Spring Boot, Laravel, Django, React, React Native, Next.js, Node.js, Xamarin/MAUI, JHipster ✅ Specialties: 🌐 Web Development: WordPress, React/Next.js, Express.js, Laravel, Django, JHipster, Spring, .NET 📱 Mobile Development: Android, iOS, Xamarin/MAUI, React Native 🎮 Game Development: Unreal Engine, Unity, C4 Engine, CryEngine, MonoGame ⛓ Blockchain Development: Solidity/Ethereum, Solana, EOS, TRON ☁️ Cloud Services: AWS, Azure, Google Cloud, Alibaba Cloud 🌍 International Marketing: US, Canada, UK, Australia, Africa & China 📌 Specific Industries: Real Estate, Hospitality, Technology, Blockchain 🌟 Solutions Architecture & System Administration: Windows, Linux, macOS 📈 Digital Marketing Expertise: - Search Engine Optimization (SEO) – Technical SEO, On-Page, Core Web Vitals, Schema - Search Engine Marketing (SEM) – Google Ads, Bing Ads, Baidu, and Social Campaigns - Content Marketing – Strategy, Keyword Research, Content Frameworks, and Funnel Design - eCommerce & Lead Generation – Conversion Optimization, Tracking, and Analytics 🎓 Certifications: - AWS Developer Associate - AWS Solutions Architect Associate - Microsoft Certified Technology Specialist - Google Ads Search Certification 🏅 Awards: Top 5 BlackBerry Developer Award – Research in Motion (2009) 📂 Specialized Expertise 🏠 MLS/IDX Integration & RESO APIs 🔒 Application Security & Data Protection 🏖 Real Estate & Travel Websites 💼 International Business & Cross-Market Strategy ⚙ Software Experience C++, C, C#, ASP.NET, Blazor, Java, PHP, Erlang/OTP, Python, Pascal, Assembly (x86, ARM64), DynamoDB, PostgreSQL, MySQL, MSSQL, MongoDB, React, Next.js, Laravel, Moodle, WordPress, Unreal Engine, Unity, and many more. ✨ Let’s Connect Whether you’re launching a new app, improving SEO visibility, or scaling a complex system, I bring 22 years of engineering excellence and real-world marketing insight to help your project succeed from concept to completion. Let’s build something exceptional together!

Nine years of development experience in the areas of Web, Desktop, Android Apps Platform: Windows, Android, Linux Languages: C#, VB, Java, Kotlin, C++, Python Azure Cloud: App Service, VMs, AD B2C, Networks/Gateways Networking: RRAS, IPSec, LibreSwan, VNC, VPN Frameworks: .Net, Android SDK Web: ASP .Net Web Forms, MVC, APIs, Identity, Html, CSS, JavaScript, Vue, React, AngularJs, Blazor MAUI Interests: Web application security, Computer network programming, Challenging research work Others: CICD, Dockers, IIS, Payment Gateways(Stripe, Revolut, Authorize.Net), Microsoft Detours

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.

Senior Software Architect specializing in secure systems and IoT Sec solutions with 15+ years of experience. I architect and deliver end-to-end nfc solutions, from embedded firmware to cloud-based backend systems. 🎯 CORE EXPERTISE IOT Systems - NFC Solutions: Reader/Writer, HCE, Digital Wallets (Android/iOS) - Smart Cards: JavaCard, MIFARE, DESFire, NTAG,Global Platform,GP,JCOP,Secure Element - Security: PKI, FIDO, Secure Element,HSM, PCI-DSS Compliance - RFID Systems: Asset Tracking, Access Control - EMV Payment: L1/L2/L3 Kernel Development & Certification - Microcontrollers: ESP32, STM32 (WiFi/BLE, RTOS) - Firmware: Secure Bootloader, OTA Updates, Real-time Systems - Industrial Applications: POS Terminals, Vending Machines, Access Control - IoT Architecture: Sensor Integration, Remote Management Full-Stack Development - Backend: Node.js, REST APIs, Database Design (SQL/NoSQL) - Cloud Services: Firebase, AWS/Azure/GCP Deployment - Mobile: Android (NFC APIs), iOS (CoreNFC), React Native - Desktop: Qt, .NET, Cross-platform Applications - Languages: C/C++, JavaScript/TypeScript, Java, C# 💼 SIGNATURE PROJECTS ✅ ESP32 IoT Systems - Created NFC-enabled payment solution with cloud integration - Built secure firmware with OTA update capabilities - Integrated Firebase for real-time data synchronization ✅ Cross-Platform Digital Wallet - Developed mobile wallet supporting EMV contactless payments - Implemented HCE and Secure Element integration - Built Node.js backend with Firebase authentication ✅ Enterprise RFID Solutions - Designed asset tracking systems for industrial clients - Implemented access control with NFC/RFID readers - Deployed cloud-based management platform ✅ EMV Payment Terminal Solutions - Developed EMV L2 & L3 kernel for contact/contactless terminals - Achieved EMVCo certification for payment applications - Implemented secure key management and transaction processing 🔧 TECHNICAL STACK Hardware: ESP32, STM32, NFC Readers, RFID Systems Backend: Node.js, Express, Firebase, REST APIs Database: MongoDB, PostgreSQL, MySQL, Firestore Cloud: Firebase, AWS, Azure, Docker deployment Mobile: Android, iOS, React Native Desktop: Qt, .NET, Windows/Linux Security: PKI, FIDO, PCI-DSS, Secure Boot 📋 CERTIFICATIONS & STANDARDS EMVCo, PCI-DSS, PBOC, Global Platform, ISO 14443 I deliver production-ready solutions with clean code, comprehensive documentation, and ongoing support. Available for both fixed-price projects and long-term contracts.

Signal Processing Engineer specializing in real-time audio DSP and embedded systems, with expertise spanning algorithm prototyping to production deployment. I develop high-performance audio solutions using C++ and JUCE for VST3/AU plugins, and leverage Python for DSP/ML research and rapid prototyping. My work encompasses the complete signal processing pipeline: • Algorithm Research & Prototyping: Using Python (NumPy, SciPy, Librosa, TensorFlow) for AEC, noise suppression, adaptive filtering, and machine learning integration • Production Implementation: Translating algorithms to optimized C++ for real-time performance in JUCE plugins and embedded systems • Embedded Deployment: Implementing DSP algorithms on Cortex-M4 with TensorFlow Lite Micro, focusing on memory and power optimization • Cloud Infrastructure: Building scalable backends and CI/CD pipelines on Azure, AWS, and Oracle Cloud for audio applications This full-stack expertise enables me to bridge signal processing research with production-ready implementations, from Python-based algorithm development to efficient C++ deployment. Recent Project: Developed an open-source Acoustic Echo Cancellation (AEC) system, implementing adaptive filtering algorithms in Python for research and C++ for real-time performance. Core Technical Stack: • Languages: C++ (Embedded/Real-time), Python (DSP/ML), MATLAB, C#, Kotlin, Swift • Signal Processing: AEC, Noise Suppression, Beamforming, Feature Extraction, Real-time DSP • Frameworks: JUCE, FAUST, TensorFlow, PyTorch, CMSIS-DSP • Cloud & DevOps: Azure, AWS, Oracle Cloud, CI/CD, Docker, REST APIs • Embedded: TensorFlow Lite Micro, STM32, ARM Cortex-M Certifications: 1. Microsoft Certified: DevOps Engineer Expert 2. Microsoft Certified: Azure Administrator Associate 3. AWS Certified Solutions Architect 4. Microsoft Azure Fundamentals (AZ-900) 5. Oracle Cloud Infrastructure Certified Architect Associate 6. Oracle Certified DevOps Professional Open to opportunities in: Audio Signal Processing, Embedded DSP Systems, Medical Device Algorithm Development, and Real-Time Processing Applications.

I am an experienced solutions architect in embedded systems, communication protocols and desktop applications domain. Primarily focused on C++. I have contributed to projects involving vehicle bus decoding, ROS based visualization of vehicle environment in 3D, cross platform desktop application development and development of embedded linux applications (including basic kernel driver tweaking). I have also written communication protocol drivers for SCADA systems for RSMP, MQTT and BACnet protocols. I also have experience in CI/CD pipelines using Jenkins and DevOps. I have followed a TDD approach in my professional work and hence am well acquainted with unit testing using GoogleTest. My tool set includes C++, Qt, ROS, CMake, Jenkins, UML, Bash, EB ADTF, Linux, Embedded Linux, device trees, GoogleTest, Deepstream SDK. I also have extensive domain knowledge of vehicle buses like CAN, Flexray, automotive Ethernet and other communication protocols like BACnet, MQTT and RSMP.

I bring a solid foundation in C and C++, with years of experience building high performance native applications for Windows. My background includes designing and maintaining scalable desktop software using Win32 APIs, MFC, and modern C++ standards, as well as integrating with hardware, custom protocols, and real-time systems. I have deep familiarity with low-level programming concepts, memory management, multithreading, and system level debugging. Whether building UI applications, device drivers, or engines for data processing or visualization, I focus on reliability, efficiency, and maintainability. I work fluently with tools like Visual Studio, GCC/Clang, and Delphi for robust build automation, and I’m well versed in Git. I also have experience interfacing with third-party libraries, DLLs, and cross-language bindings (eg C++/CLI, COM, P/Invoke), allowing seamless integration with other platforms, such as .NET apps. Maybe you prefer simplifying the frot-end with WPF or WinForms, while keeping a rendering engine in 3D and the logic behind it pure native code such as C/C++. While I thrive in systems programming and native application development, I also collaborate effectively with UI/UX developers, scripting teams, and testers to deliver cohesive software solutions. My core strength is performance development with a focus on clean, modular, and pure maintainable code. Above all, I value clarity, consistency, and a strong engineering mindset. I aim to simplify complexity, support my team, and contribute to products that are not just functional, but exceptional! Also... I bring a strong foundation in C#, .NET Framework, .NET Core, and .NET 5+, with hands-on experience building and maintaining scalable backend systems and microservices. I've developed RESTful APIs and implemented enterprise-grade backend services using best practices for performance, maintainability, and security. I work fluently with Entity Framework to interface with relational and SQL databases such as MS SQL, MongoDB, and MySQL. My experience with authentication and authorization includes OAuth-based systems and token-based security schemes, ensuring secure communication across distributed systems. ASP.NET is my mightiest area of expertise offering I’m confident using Git and NuGet to manage source control and dependencies, and I maintain clean, modular codebases that are easy to scale. I’ve collaborated with front-end developers using JavaScript, and I’m comfortable working with front-end myself on the integration side of things, while back-end is my core focus. As a developer, I value professionalism, clear communication, and a supportive team environment. I strive to be approachable and reliable, keeping the team aligned while never hesitating to jump in and assist others. Whether it’s writing performant code or simplifying complex technical decisions, I aim to make meaningful contributions every day.

As an Electrical/Electronics Engineering graduate and passionate IoT/AI enthusiast, I bring nearly seven years of hands-on experience in embedded systems, Arduino, ESP, and sensors. Throughout my career, I have adeptly coded microcontrollers, including Arduinos, ESP Family, STM32/GD32, and Raspberry Pi, seamlessly integrating them with various hardware modules such as RFID, GSM, Bluetooth, GPS, and LCDs. I have spearheaded core electrical engineering projects leveraging advanced machine learning algorithms like Decision Trees and Clustering for system optimization and efficient design. My proficiency extends across programming languages including C/C++, Python, and MATLAB, enabling me to tackle diverse challenges easily. Additionally, my expertise encompasses a wide array of domains ranging from probability and statistics to signal analysis, digital logic design, power system analysis, and more. I boast strong proficiency in MS Office tools, leveraging them adeptly for comprehensive project documentation. Notable projects in my portfolio include: - Disaster minimization through Home automation - Efficient islanding detection techniques - Clustering analysis for power grids - WiFi-based relay control system - Client-server message exchange utilizing the HTTPS button - MQTT pump controller implementation - Energy meter data logging solutions - Automatic flushing system design for settling basins With a blend of theoretical knowledge and practical skills, I am poised to deliver innovative solutions and drive excellence in the field of embedded systems and IoT.

⭐ Microsoft Certified Developer ⚡ Senior Full-Stack .NET Core Developer 10+ years | 50+ enterprise systems | API Integration & Azure Expert | C# / ASP.NET Core / SQL Senior Full-Stack Developer with 10+ years of experience delivering 50+ enterprise-level Web Development and Web Application systems using C#, .NET Framework, ASP.NET, ASP.NET Core, ASP.NET MVC, JavaScript, React, Angular, AngularJS, TypeScript, HTML, HTML5, CSS, API, API Development, RESTful API, API Integration, Microsoft SQL Server, PostgreSQL, SQL, Microsoft Azure, Azure DevOps, CI/CD, Amazon Web Service, Node.js, PHP and Python. I build scalable Web Application platforms with clean API Integration, optimized SQL, and production deployments on Microsoft Azure using C#, .NET Core, ASP.NET Core, React, Angular and JavaScript. I also develop AI powered systems using OpenAI API, OpenAI, Claude, Claude API, LangChain, FastAPI, RAG, Artificial Intelligence, Machine Learning and Natural Language Processing. If you need a developer who can build scalable production-ready systems fast let’s talk. I have built 100+ API Integration and API Development solutions using C#, .NET Core, .NET Framework, ASP.NET, ASP.NET Core, ASP.NET MVC and RESTful API architecture, integrating systems across Microsoft Azure, Azure DevOps, CI/CD pipelines and Amazon Web Service. I have implemented 70+ automation workflows using API Integration, Node.js, Python, FastAPI and SQL-based processing across Microsoft SQL Server and PostgreSQL environments. I have delivered 50+ Web Application systems including SaaS platforms, internal tools, dashboards and integration-heavy solutions using C#, ASP.NET Core, .NET Core, JavaScript, React, Angular, AngularJS, TypeScript, SQL, Microsoft SQL Server, PostgreSQL and API Integration deployed on Microsoft Azure and Amazon Web Service. My focus is combining backend architecture with modern Web Development and Web Design for scalable systems. ⚡ What I Build 🔹 Web Application systems processing 100k+ API requests daily using C#, ASP.NET Core, RESTful API, API Development, Microsoft SQL Server, PostgreSQL and SQL optimization 🔹 Integration-heavy platforms using C#, .NET Framework, ASP.NET MVC, ASP.NET Core, API Integration, RESTful API and Node.js connected to CRMs, SaaS tools and external APIs 🔹 Cloud-based systems deployed on Microsoft Azure, Azure DevOps, CI/CD and Amazon Web Service with scalable backend architecture 🔹 Frontend interfaces using JavaScript, React, Angular, AngularJS, TypeScript, HTML, HTML5 and CSS with responsive Web Design 🔹 AI powered features using OpenAI API, OpenAI, Claude, Claude API, LangChain, FastAPI, RAG, Artificial Intelligence, Machine Learning and Natural Language Processing integrated into existing Web Application platforms ⚡ What Makes Me Different Most developers build features. I build scalable systems. As a Senior Full Stack Developer, I focus on: 🔹 API Development and RESTful API architecture using C#, .NET Core, ASP.NET Core and ASP.NET MVC 🔹 Complex API Integration across enterprise systems using Microsoft Azure and Azure DevOps 🔹 High-performance Microsoft SQL Server, PostgreSQL and SQL optimization 🔹 Cloud-native deployment using Microsoft Azure, Azure DevOps, CI/CD and Amazon Web Service 🔹 Full-stack Web Development using JavaScript, React, Angular, AngularJS, TypeScript, HTML, HTML5 and CSS 🔹 AI powered automation, ai agent workflows and AI Integration using OpenAI API, OpenAI, Claude, Claude API, LangChain and FastAPI I design systems where C#, ASP.NET Core, .NET Core, Microsoft SQL Server, PostgreSQL, SQL, React, Angular and Microsoft Azure work as a unified architecture. My focus is production-grade Web Application systems with clean API Integration, scalable infrastructure and maintainable backend architecture built with C#, .NET Framework, ASP.NET, ASP.NET Core and ASP.NET MVC. ⚡ Core Stack C#, .NET Core, .NET Framework, ASP.NET, ASP.NET Core, ASP.NET MVC, JavaScript, React, Angular, AngularJS, TypeScript, Node.js, PHP, Python, HTML, HTML5, CSS, SQL, Microsoft SQL Server, PostgreSQL, Microsoft Azure, Azure DevOps, CI/CD, Amazon Web Service, API, API Development, RESTful API, API Integration, Web Development, Web Application, Web Design, OpenAI API, OpenAI, Claude, Claude API, LangChain, FastAPI, ai agent, ai automation, ai powered systems, RAG, Artificial Intelligence, Machine Learning, Natural Language Processing. I am currently available for Web Development, API Development, API Integration, AI Integration, ai automation and enterprise .NET development using C#, ASP.NET Core, .NET Core, Microsoft SQL Server, PostgreSQL, Microsoft Azure, React and Angular.