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I work as a professional programmer, web-developer since 1998. I worked with various programming languages and various web tech, so now I have a huge experience. Now I'm focused on these directions: .NET, Delphi and PHP: #1 .NET - WinForms, WPF, WCF, ASP.NET (WebForms, Razor, Blazor), Web API, .NET remoting, Entity Framework, DBML, NHibernate, Telerik, NetMQ. (both languages C# and VB.NET) #2. Delphi 5.0 - 12 #3. PHP - PHP7/8, PHP frameworks (Laravel, Lumen, Yii2, CakePhp, CodeIgniter), PHP modules like Swoole, pthreads, etc If this is a web-development, then this will include also work with: HTML/CSS, JavaScript, AJAX, Json, RESTful API, API/SDK, Bootstrap, VueJS, ReactJS, Kendo UI, DevExpress, etc. Databases: MS SQL, MySQL, PostgreSQL, ORACLE, Interbase, etc. I have good experience working with Agile tools such as Jira, Trello

🏆 .NET Developer with 20+ years of experience building scalable, high-performance web applications and backend systems. I specialize in ASP.NET Core, C#, MVC, Web API, and SQL Server to deliver robust, secure, and user-friendly solutions. 💡 Key Competencies: 🔹 Backend Development: C# | ASP.NET Core ⚡ Building scalable and secure backend systems with ASP.NET Core and C# ⚡ Developing RESTful APIs for seamless frontend-backend communication ⚡ Implementing authentication and authorization using JWT and OAuth ⚡ Middleware development for request handling and validation 🔹 Frontend Development: 📌 Creating dynamic, responsive, and interactive user interfaces with ASP.NET MVC and Razor Pages 📌 Integration with RESTful APIs and third-party libraries 📌 Responsive web design with CSS, Bootstrap, and JavaScript 📌 Building web applications with Angular, PrimeNG, TypeScript 📌 Blazor for building interactive web applications with C# 🔹 Database Management: SQL Server and PostgreSql 🌟 Designing and optimizing databases for performance and scalability 🌟 CRUD operations and complex query implementation 🌟 Data modeling and schema design for efficient data storage 🌟 Integration with Entity Framework Core, NHibernate and Dapper for streamlined database interactions 🔹 Microservices Architecture: 🌠 Using Docker for containerization and deployment 🔹 Fullstack Development: ⭐️ End-to-end development of web applications, from concept to deployment ⭐️ Seamless integration of frontend and backend systems ⭐️ Deployment on cloud platforms like Azure and AWS ⭐️ Version control with SVN, TFS, Git and collaborative workflows 🔹 Additional Skills: ✨ Testing with xUnit and Moq ✨ Agile methodologies for project management ✨ CI/CD pipelines for automated deployment ✨ Performance optimization for faster load times 💡 Why Choose Me? 🔥 Proven Expertise: Delivered 20+ .NET projects with measurable results 🔥 Scalable Solutions: Build applications that grow with your business 🔥 Client-Centric Approach: Clear communication, timely delivery, and dedicated support 🔥 Future-Proof Development: Write clean, maintainable, and well-documented code 🔥 Continuous Learning: Always updating my skills to stay ahead in the ever-evolving tech landscape 💡 Technical Stack: 📌 Backend: ASP.NET Core, C#, RESTful APIs, SignalR, Entity Framework Core 📌 Frontend: Angular, React, ASP.NET MVC, Blazor, CSS3, Bootstrap, JavaScript 📌 Database: SQL Server, PostgreSql, Entity Framework Core, other ORMs 📌 Tools: Git, Docker, xUnit, Moq 📌 Deployment: Azure 💡 Recent Projects: 🌎 Developed web system using ASP.NET Core Web API, Angular, PrimeNG, DevExtrem 🌎 Build different integrations using Azure Functions, Azure Storage, CosmosDB 🌎 Improve security with Azure Key Vault 🌎 Bug fix and implement new features for existed systems 🌎 Support and bug fix for big legacy distributed system .NET Developer Upwork .NET Development Upwork ASP.NET Developer Upwork ASP.NET Core Developer Upwork C# Developer Upwork .NET Web Development Upwork .NET Application Development Upwork .NET Software Developer Upwork .NET API Development Upwork .NET Backend Developer Upwork .NET Full Stack Developer Upwork ASP.NET MVC Developer Upwork .NET Core Developer Upwork .NET REST API Developer Upwork .NET Web API Development Upwork .NET Enterprise Application Development Upwork .NET Database Development Upwork .NET SQL Server Developer Upwork .NET Azure Developer Upwork .NET Cloud Application Development Upwork .NET Integration Developer Upwork .NET Performance Optimization Upwork .NET Maintenance and Support Upwork .NET Migration & Upgrade Services Upwork Skill Keywords# ASP.NET Developer | Blazor | Angular | ASP.NET Core MVC Developer | .NET Backend Engineer | Senior Full-Stack C# Developer | Clean Architecture in .NET | Freelance Enterprise .NET Developer | Microsoft Azure .NET Specialist | Cloud-Native .NET Engineer | .NET Dev with CI/CD Pipelines | Dockerized .NET App Developer | Finance & Insurance .NET Systems | API Development & Documentation (Swagger, Postman) | Backend Developer (.NET Core) | SQL Server Optimization & Query Tuning | Entity Framework Core + Code-First Dev | T-SQL / Stored Procedure | RESTful API Developer | Agile & Scrum-Based Project Experience | DevOps on Azure + GitHub Actions | Secure App Developer (JWT, Role-based Auth) | Localization & Globalization in .NET Apps | PDF & Excel Report Generator in .NET | Upwork Verified .NET Expert | ASP.NET Identity & Claims-Based Authorization | Automated Unit Testing with xUnit & NUnit | Azure App Service + Azure Storage + Key Vault Setup | Legacy App Modernization - .NET Framework to .NET Core

😊 11+ years of commercial experience as Software Engineer 💻 I have a reliable team that is helping me to fill any role that is needed on a project. Any level of expertise, any budget, under my supervision SKILLS: ASP.NET & C# - 11+ years with ASP.NET MVC, ASP.NET Core, Web API, .NET Framework, .NET Core, Entity Framework Full-Stack - C#/.NET backend + Angular (2 yr), React/Redux (2 yr), jQuery (4 yr). TypeScript, JavaScript, HTML, CSS, SASS/SCSS, NgRx, Angular Material Databases -- SQL Server, MySQL, PostgreSQL, CosmosDB, Redis, MongoDB. Performance tuning, stored procedures, index optimization, database structure design Cloud & DevOps -- Azure (3 yr), AWS (1 yr), GCP (1 yr), Docker, Kubernetes, CI/CD, Azure DevOps, Bamboo, PowerShell Architecture -- Monolithic (6 yr) and Microservices (3 yr). Distributed transactions with MassTransit, RabbitMQ, database-per-service, shared database Leadership -- Scrum ceremonies, code reviews, sprint planning, backlog management, team performance evaluation Real-Time -- SignalR, WebSocket, ServiceBus for live notifications and messaging Security & Quality -- OAuth 2.0, JWT, Fortify scanning, penetration testing remediation, performance/load/stress testing Monitoring -- DataDog dashboards, AppDynamics, production metrics and performance reports PROJECTS: 1. Business Management Platform (2025 - present) Multi-location businesses and franchises: workforce scheduling, hiring, onboarding, task automation, compliance, maintenance scheduling, inventory control, analytics. Built real-time messaging with auto-scaling, hysteresis in caching, message reactions, SignalR broadcasting. Employee time clock. Advanced schedule configuration. Team: 5 devs, 1 PM. Tech: .NET Framework, .NET Core, ASP.NET MVC, SQL Server, CosmosDB, Azure, jQuery, Redis, SignalR 2. Commodity Trading Portal (2023 - 2024) -- Technical Lead SPA for South American commodity trading. Designed architecture, verified with solution architects. Wrote technical design documents and database diagrams. Managed development plan months ahead. Reviewed all PRs. Aligned cross-team dependencies. Set up MassTransit for distributed transactions across multiple databases. Built microservice for business contracts with South America-specific requirements. Team: 1 SA, 4 Full-Stack, 1 FE, 3 BAs. Tech: Angular, NgRx, TypeScript, OAuth 2.0, JWT, Docker, Azure DevOps, MassTransit 3. Healthcare Portal (2023) -- Team Lead Medical professionals: profiles, job applications, licence confirmation, patient history tracking. Improved legacy app performance by 30-80%. Built DataDog dashboards. SQL performance tuning. Fortify security scanning. Automated deployments. Identified root causes of inconsistently reproducible issues. Team: 2 TLs, 3 devs, 2 QA, 1 DBA, 1 PM, 1 SA. Tech: SQL Server, DataDog, AppDynamics, PowerShell, Fortify, Bamboo 4. Enterprise Feedback System (2022 - 2023) Built from scratch in 1 year, on time. Employee feedback: drafts, tags, aspects, receivers. Microservice architecture with shared database. Complex filtering and data warehouse reports. Performance/load/stress tests. Database index tuning. Migration tools. CRUD and filtering APIs. Penetration testing fixes. Private NuGet feed. Team: 1 TL, 3 BE, 2 FE, 1 PO, 1 BA, 3 QA, 1 DevOps, 1 SA 5. Warehouse Logistics (2019 - 2022) -- Team Lead Role-based portals: truck drivers tracking load/offload, dispatchers assigning docks, analytics. Business trips to Canada for on-site client work and production support. Managed front-end team. On-call support (red phone). Linux server management. High-performance SQL. Background workers. RabbitMQ queues. ML dataset preparation. Installed hardware on warehouse trucks for movement tracking. Team: multiple devs, 3 QA, 1 SA, 1 PM. Tech: ASP.NET MVC, Web API, React, Redux, jQuery, RabbitMQ, SQL Server 6. Social Network for Car Drivers (2017 - 2019) Posts, comments, likes, private messages, groups, organisations. User wall (Facebook-like), image/video upload and processing, real-time notifications with SignalR, ServiceBus jobs. Team: 6 devs, 1 PM, 2 QA. Tech: ASP.NET MVC, jQuery, SignalR, ServiceBus DOMAINS: Social networking, warehouse logistics/supply chain, healthcare, commodity trading, employee feedback/HR, business management/franchises, government compliance, asset/operational management CERTIFICATIONS: Azure Fundamentals, MCSD App Builder, MCSA Web Applications, Exam 487 (Azure/Web Services), Exam 486 (ASP.NET MVC), Exam 480 (HTML5/JS/CSS3) EDUCATION: Master's in Business Administration -- Ivano-Frankivsk National Technical University of Oil and Gas Have a 3+ years working with Angular and as a Full Stack Developer - Blazor Developer - .NET MAUI Developer Additionally to development, I am also a Business Manager in our team

Are you ready to start working with me? I’m not just a programmer. I take the time to understand your business domain, how your processes actually work, and what your users need. This allows me to create a strong connection between your business requirements, our collaboration, and the software we build. For 17+ years, I’ve been building software professionally, including 13+ years working on real products across multiple companies and industries — from ERP and education to monitoring, healthcare, SaaS, and enterprise systems. I’ve worked on products throughout their lifecycle — understanding business requirements, designing architecture, writing code, integrating systems, optimizing performance, fixing legacy problems, and continuously improving software used by real businesses and users. At the same time, I’ve built a strong freelance career, delivering 66+ successful software projects worldwide and maintaining a 100% Job Success Score on Upwork. My clients have consistently been satisfied with the results, and many projects have grown into long-term cooperation. This combination gives me two perspectives that are valuable to my clients: As a product engineer, I understand what it means to work on a product every day, deal with real users, business processes, technical debt, architecture, and long-term product evolution. As a freelancer, I understand that your time and money matter. I take responsibility for understanding the problem, communicating clearly, and delivering a solution that actually works for your business. How I Work With Clients ⭐ I don’t simply wait for specifications — I dive into the business domain and ask questions when something doesn’t make sense. ⭐ I provide a transparent real-time development process with active Kanban tasks, planning, progress tracking, and continuous communication. ⭐ You can always understand what I’m working on now, what is planned next, and how the product is progressing. ⭐ I use AI-powered development tools for research, coding, debugging, refactoring, documentation, and problem-solving to make development faster and more efficient. Why Clients Hire Me ⭐ 17+ years of professional software development experience ⭐ 13+ years working on real products across multiple companies and industries ⭐ 66+ successful freelance projects delivered worldwide ⭐ Top Rated Upwork Developer with a 100% Job Success Score ⭐ Senior C# / .NET Full Stack Developer experienced in SaaS, enterprise software, ERP systems, complex business logic, and legacy modernization ⭐ Experience building and maintaining software used by 250,000+ users ⭐ Led development for enterprise SaaS platforms with 20+ engineers ⭐ Reduced page load time from 30 seconds to 1 seconds ⭐ Reduced deployment time from several minutes to under one second ⭐ Optimized high-load systems and reduced infrastructure costs by 66% ⭐ Strong expertise in software architecture, backend, frontend, databases, cloud integrations, and system optimization My goal is not simply to write code that matches a specification. My goal is to understand your business, your product, and the problem we are solving — and then work with you to build the right solution. Full Stack .NET Development Services SaaS Development • Full Stack SaaS Development • Senior .NET Developer for startup MVPs and enterprise platforms • Multi-tenant SaaS architecture • REST APIs • Authentication & Authorization • Subscription systems • Admin dashboards • Cloud-ready applications Full Stack Development • Full Stack .NET Development • C# Development • ASP.NET Core • Blazor Server • Blazor WebAssembly • Razor Pages • SQL Server • Entity Framework Core • JavaScript • HTML • CSS • API integrations Software Engineering • Software Architecture • System Design • Domain-driven application design • Performance optimization • Refactoring • Code reviews • Technical leadership • Scalable software solutions Legacy Modernization • ASP.NET WebForms → ASP.NET Core • WinForms → Blazor • .NET Framework → .NET • ASP.NET MVC → Razor Pages • Database modernization • Performance optimization • Cloud migration Desktop Application Development • WinForms • Windows Services • Enterprise desktop software • Background services • Hybrid desktop/web solutions Workflow Discovery • Analyze business requirements • Review existing systems • Define scalable architecture Architecture • Design maintainable software • Define service boundaries • Choose appropriate technologies • Plan long-term scalability Development • Senior C# Development • Full Stack Engineering • Backend development • Frontend development • API integrations • Database design • Third-party integrations Optimization • Performance tuning • SQL optimization • Memory optimization • Infrastructure optimization • Cost reduction Technologies C# .NET ASP.NET Core Blazor Blazor Server Blazor WebAssembly Razor Pages Entity Framework Core SQL Server JavaScript TypeScript HTML5 CSS3 REST API Microservices Azure WinForms

🚀 Experienced .NET Developer | Microsoft Azure Certified Professional 🚀 Greetings! I am a passionate and results-driven .NET developer with over 4 years of hands-on experience in crafting robust Business Intelligence solutions for diverse companies. My expertise lies in creating seamless and efficient systems that empower businesses with actionable insights. Technical Proficiency: ✨ Microsoft Certified: Azure Administrator and Azure Solutions Architect Expert. 💻 Development Skills: Proficient in .NET technologies, especially adept in Blazor for dynamic and responsive front-end development. 🎲 Database Mastery: Experienced in designing and managing SQL databases, including MS SQL Server. Familiarity with MongoDB and Redis. ☁️ Cloud Environments: Specialized in Azure, with a focus on creating scalable and secure cloud solutions. Project Highlights: 🌐 API Development: Proficient in crafting APIs using ASP.NET Core, ensuring robust and scalable backend solutions. 🛠️ Microservices Architecture: Skilled in designing and implementing microservices for enhanced system modularity and flexibility. 🎨 Front-end Expertise: Developed engaging and user-friendly interfaces using Blazor, blending aesthetics with functionality. Why Choose Me: 🤝 Collaborative Approach: I believe in clear communication and collaboration to ensure the project meets and exceeds your expectations. 🚀 Result-Oriented: My goal is to deliver solutions that not only meet technical requirements but also contribute to the overall success of your business. 📈 Continuous Learning: In the ever-evolving tech landscape, I am committed to staying updated with the latest trends and technologies. If you're seeking a dedicated .NET developer with a proven track record in business intelligence, API development, and cloud solutions, let's connect! I am eager to bring my skills to your projects and contribute to your success.

I am a highly skilled Umbraco, ASP.NET Core, and C# expert, ranking in the Top 1% for .NET/C# skills with 21 years of C# experience. I specialize in delivering fast websites with intuitive backends and pixel-perfect markup. Over my career, I've successfully completed 100+ projects on time and within budget for both large and small companies. Key Technologies: - Umbraco (Versions 15, v7-v14), Composing, Dashboards, Custom Property Editors, Custom Trees - Umbraco migration from 7 to latest, from 8 to latest, uSync, and upgrade expertise - Migrate from Wordpress to Umbraco - ASP.NET and ASP.NET Core - eCommerce platforms: Vendr, Stripe, uCommerce, Merchello - Umbraco Cloud (UaaS) and Azure - Integration of APIs: Facebook, Linkedin, Amadeus, Expedia, Mellowood, CourseStorm - Payment gateways: Stripe, MerchantWarrior, WorldPay, PayPal API, SagePay, GlobalPay - Databases: MSSQL, MySQL, PostgreSQL, Oracle - Frontend: HTML5, video integration, AngularJS, Tailwind CSS, Sass/Scss, Bootstrap, Zurb Foundation 6 - Version control: Git, SVN, GitHub, Bitbucket - Project management tools: Trello, Asana, Jira, Figma, PSD I excel in both collaborative large-team projects and independent work on smaller projects, requiring minimal supervision. My technical versatility and adaptability make me an ideal candidate for various projects in Umbraco, ASP.NET, C#, and related technologies.