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I am a .NET full stack developer and software architect with 8+ years of experience building scalable web applications using ASP.NET Core, Angular, C#, TypeScript, Microsoft SQL Server, Azure, and modern cloud technologies. Across 35+ projects in defence, renewable energy, fintech, e-commerce, and enterprise SaaS development I have delivered systems that handle real production load, not just demo traffic. What I build as a .NET full stack developer My deepest work is in ASP.NET Core back-end development. I spent years as the lead .NET full stack developer on a platform managing thousands of wind and solar energy installations globally, processing massive volumes of real-time data, building microservices on .NET Core and Azure, and reducing critical downtime incidents by over 40% through improved monitoring and analytics. On another project I built a Loan Origination System in ASP.NET Core that automated the entire loan lifecycle from lead capture to loan issuance, integrating with HubSpot, external CRMs, and RESTful APIs on Microsoft Azure. The client went from manual processing to a fully automated fintech pipeline handling 550+ active applications, cutting processing time by 60%. ASP.NET developer work across enterprise and defence Some of my most complex work as an ASP.NET developer has been in defence and industrial sectors. I modernized a legacy web platform for a company managing 36 high-uptime naval fleet assets, warships that cannot afford downtime. The ASP.NET MVC rebuild reduced manual reporting time by 70% and enabled real-time asset tracking, secure document storage, and streamlined access to sensitive operational data. On another engagement I took over a large workplace management SaaS development project built by a single developer who had left, no documentation, weekly outages, daily hotfixes. I stabilized the ASP.NET Core back-end, eliminated the performance bottlenecks, and reduced unplanned incidents from weekly to zero within two months. ASP.NET Zero and enterprise acceleration ASP.NET Zero is my go-to when enterprise clients need multi-tenancy, role-based permissions, and audit logging without spending the first three sprints on boilerplate. I have used it to accelerate SaaS development on projects in pharma automation, workplace management software, and industrial IoT, cutting initial setup time by 3+ weeks and letting the team focus on actual business logic from day one. On average my clients ship their first production release 30% faster on ASP.NET Zero compared to building from scratch. Full-stack web development across the whole system As a .NET full stack developer I own the entire delivery, ASP.NET Core back-end, Angular or React front-end with clean web design, Microsoft SQL Server and PostgreSQL database design, and Azure infrastructure. I built a Shopify fulfillment tool in ASP.NET Core and React that reduced packing mistakes to zero and cut order processing time by 35%, integrating barcode scanning, inventory management, and connections to 8+ shipping providers. I delivered a fleet management system in .NET Core and Angular handling 1,250+ assets and 845 active rentals simultaneously, with automated reporting that saved operations teams 10+ hours per week. On the front end I work with Angular, React, TypeScript, JavaScript, Next.js, HTML, CSS, Bootstrap, and RESTful API integration, connecting them cleanly to .NET back-ends without creating maintenance nightmares six months later. C# and .NET developer engineering that goes deep Back-end development across 8 years as a .NET developer means I have seen what breaks under real load. I cut a US e-commerce platform's page load time from 8 seconds to 2, directly contributing to a 2x increase in sales. I optimize Microsoft SQL Server and PostgreSQL queries, regularly reducing query execution times by 60-80%, design database schemas that support complex reporting, and build API integration layers connecting .NET systems to CRMs, ERPs, payment gateways, and third-party platforms. I work with Node.js for event-driven services, TypeScript to keep large codebases maintainable, and Python or PHP when projects need scripting layers alongside the core .NET stack. For web development infrastructure I use Microsoft Azure and Amazon Web Services, Docker containers, microservices architecture, and CI/CD pipelines that reduced deployment time by 50% for several enterprise clients. Why clients come back I have worked with clients in Germany, the USA, Australia, the UK, Norway, Denmark, and the Netherlands across renewable energy, defence, fintech, e-commerce, and industrial IoT. What stays the same: I ask the right questions before writing the first line of code, flag problems early, and deliver .NET full stack applications that work in production, not just in development. If you are scaling a SaaS product, modernizing a legacy system, or need a .NET full stack developer your team can build on, let us talk.

𝗦𝗲𝗻𝗶𝗼𝗿 .𝗡𝗘𝗧 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗖# | 𝗔𝗦𝗣.𝗡𝗘𝗧 𝗖𝗼𝗿𝗲 | 𝗔𝗦𝗣.𝗡𝗘𝗧 𝗠𝗩𝗖 I am a Senior .NET Developer with extensive experience building enterprise applications, SaaS platforms, Web APIs, business systems, and scalable backend solutions using C#, ASP.NET Core, ASP.NET MVC, ASP.NET Web API, SQL Server, React, Angular, JavaScript, Node.js, and .NET Framework. 𝗖# 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 * C# Developer * C# Development * C# Backend Development * C# Software Development * C# Enterprise Applications * C# REST APIs * C# Business Applications * C# Architecture * C# API Development * C# Database Integration 𝗔𝗦𝗣.𝗡𝗘𝗧 𝗖𝗼𝗿𝗲 * ASP.NET Core Developer * ASP.NET Core Development * ASP.NET Core APIs * ASP.NET Core Web Applications * ASP.NET Core Microservices * ASP.NET Core Backend Development * ASP.NET Core REST APIs * ASP.NET Core Enterprise Systems * ASP.NET Core SaaS Platforms * ASP.NET Core Architecture 𝗔𝗦𝗣.𝗡𝗘𝗧 𝗠𝗩𝗖 * ASP.NET MVC Developer * ASP.NET MVC Development * ASP.NET MVC Applications * ASP.NET MVC Solutions * ASP.NET MVC Enterprise Development * ASP.NET MVC Web Applications * ASP.NET MVC Architecture * ASP.NET MVC Business Systems * ASP.NET MVC Backend Development * ASP.NET MVC Maintenance 𝗔𝗦𝗣.𝗡𝗘𝗧 𝗪𝗲𝗯 𝗔𝗣𝗜 * ASP.NET Web API Development * ASP.NET Web API Services * ASP.NET Web API Integration * ASP.NET Web API Architecture * ASP.NET Web API Backend Systems * ASP.NET Web API Development * ASP.NET Web API Development * ASP.NET Web API Development * ASP.NET Web API Development * ASP.NET Web API Development .𝗡𝗘𝗧 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸 * .NET Framework Development * .NET Framework Applications * .NET Framework Maintenance * .NET Framework Integration * .NET Framework Modernization * .NET Framework Enterprise Systems * .NET Framework Architecture * .NET Framework APIs * .NET Framework Backend Development * .NET Framework Solutions 𝗦𝗤𝗟 * SQL Development * SQL Database Design * SQL Optimization * SQL Queries * SQL Performance Tuning * SQL Stored Procedures * SQL Data Modeling * SQL Reporting * SQL Integration * SQL Architecture 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗦𝗤𝗟 𝗦𝗲𝗿𝘃𝗲𝗿 * Microsoft SQL Server Development * Microsoft SQL Server Database Design * Microsoft SQL Server Optimization * Microsoft SQL Server Administration * Microsoft SQL Server Performance Tuning * Microsoft SQL Server Reporting * Microsoft SQL Server Integration * Microsoft SQL Server Data Management * Microsoft SQL Server Enterprise Applications * Microsoft SQL Server Architecture 𝗥𝗲𝗮𝗰𝘁 * React Developer * React Development * React Applications * React Frontend Development * React UI Development * React SPA Development * React Integration * React Dashboard Development * React Enterprise Applications * React Web Applications 𝗔𝗻𝗴𝘂𝗹𝗮𝗿 * Angular Developer * Angular Development * Angular Applications * Angular Frontend Development * Angular Enterprise Applications * Angular UI Development * Angular Integration * Angular SPA Development * Angular Web Applications * Angular Dashboard Development 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 * JavaScript Developer * JavaScript Development * JavaScript Applications * JavaScript Frontend Development * JavaScript Backend Development * JavaScript APIs * JavaScript Integration * JavaScript Web Applications * JavaScript Architecture * JavaScript Development Services 𝗡𝗼𝗱𝗲.𝗷𝘀 * Node.js Developer * Node.js Development * Node.js APIs * Node.js Backend Development * Node.js Services * Node.js Integration * Node.js Applications * Node.js REST APIs * Node.js Enterprise Development * Node.js Architecture 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗗𝗲𝘀𝗶𝗴𝗻 * Software Design * Software Design Architecture * Software Design Patterns * Software Design for Enterprise Applications * Software Design and Development * Software Design and Integration * Software Design Best Practices * Software Design for SaaS Platforms * Software Design for APIs * Software Design for Scalable Systems 𝗢𝘁𝗵𝗲𝗿 𝗦𝗸𝗶𝗹𝗹𝘀 Desktop Application Development, Desktop Application Architecture, Desktop Software Development, Git, Git Workflow Management, Git Version Control, HTML Development, HTML Responsive Design, Bootstrap Development, Bootstrap Responsive UI, Bootstrap Frontend Development. I build scalable SaaS platforms, enterprise software, ASP.NET Core applications, ASP.NET MVC systems, ASP.NET Web APIs, SQL Server databases, React applications, Angular applications, Node.js backends, and high-performance business solutions using C#, .NET Framework, SQL, JavaScript, and modern software architecture principles.

Senior ASP.NET / C# Full-Stack Developer with 11 years of professional experience. Technical Lead and Team Lead on enterprise projects across 7 business domains SKILLS: ASP.NET & C# -- 9+ 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 WORKING STYLE: Experienced with Scrum and Kanban. Strong technical documentation skills. Skilled in communicating directly with product owners and customers. Work well both independently and in teams. Full SDLC participation. Prioritize writing efficient, maintainable code with focus on privacy and security.

🌟I’m a Full Stack Developer, .NET developer, .NET Core developer, ASP.NET developer, ASP.NET Core developer, C# developer, and C# .NET developer with 8+ years of experience in full stack development, .NET full stack engineering, backend development, frontend development, and custom software development. I build reliable web applications, enterprise systems, SaaS platforms, APIs, and business software that are designed to scale, perform, and stay maintainable over time. My focus is not only on writing code, but on building systems that are stable, clean, and ready for real-world use. As a Full Stack developer and .NET developer, I work across .NET, .NET Core, ASP.NET, ASP.NET MVC, ASP.NET Core, and C# to build production-ready systems with solid backend architecture and modern frontend interfaces. I regularly handle ASP.NET developer work, ASP.NET Core developer projects, ASP.NET MVC applications, .NET Core developer tasks, and C# developer builds where stability, structure, and clean code matter from day one. That includes everything from application design and business logic to integration, testing, and deployment support. A big part of my work as a full stack developer react and React developer involves connecting frontend and backend layers into one smooth product. I build React frontends, support Angular applications, and deliver Angular C# solutions where UI and backend logic need to stay tightly aligned. When clients need a full-stack developer who can own both sides of the application, I step in as the full stack developer who can manage the frontend, backend, and APIs together without splitting the job across multiple people. I also work on C# WPF desktop applications, .NET Core backend systems, API integration, third-party services, authentication, permissions, database design, and application modernization. My experience includes full stack development for SaaS platforms, internal tools, customer portals, enterprise dashboards, and workflow-heavy business systems. Whether the project is a new MVP, a platform rebuild, or a legacy upgrade, I focus on clean architecture, maintainability, and long-term support. I’m especially comfortable with projects that need both speed and depth. Some clients need a .NET developer to fix a specific issue or add a feature. Others need a full stack developer who can take ownership of the entire product layer, including backend services, frontend implementation, and API-driven workflows. In both cases, I bring a practical approach that keeps the codebase manageable and the delivery consistent. 💡 What I specialize in - Full stack development for web applications, SaaS platforms, portals, and business systems. - Full stack developer and full-stack developer work across frontend and backend layers. - .NET developer and .NET Core developer work for scalable backend systems. - ASP.NET developer, ASP.NET Core developer, ASP.NET MVC, and ASP.NET Core application development. - C# developer work using C#, C# .NET, and .NET backend architecture. - Full stack developer react work with React frontends and .NET backends. - React development for modern responsive user interfaces. - Angular development for structured frontend applications. - Angular C# applications with clean frontend-backend integration. - C# WPF desktop applications for internal tools and enterprise workflows. - .NET full stack engineering for data-driven systems and business logic. - API integration, external services, and data flow automation. - MVP development, feature expansion, and product scaling. - Legacy modernization, refactoring, and performance optimization. In my day-to-day work as a Full Stack Developer, I design systems that support real business goals, not just polished screens. That means secure authentication, permissions, APIs, background jobs, database structure, and application logic that can handle growth. As a .NET full stack engineer, I also focus on clean code, maintainability, and practical architecture so teams can keep moving without creating unnecessary technical debt. I care about how software behaves after launch, not just how it looks during development. My core stack includes .NET, .NET Core, ASP.NET, ASP.NET MVC, ASP.NET Core, C#, C# .NET, React, Angular, SQL databases, REST APIs, and modern deployment practices. I’m comfortable working as a full stack developer, .NET developer, ASP.NET developer, ASP.NET Core developer, C# developer, or full-stack developer on both greenfield products and existing systems that need improvement. I can also step into legacy codebases, clean up technical debt, and rebuild critical parts without disrupting the rest of the product. 🌟 Clients usually choose me when they need a full-stack developer who can move fast, stay organized, and build software that holds up over time. If you need a .NET developer .NET Core developer, ASP.NET Core developer, C# developer, React developer, or Angular developer, let’s talk about your project. Message me!

Still looking for a reliable .NET developer who can actually move your project forward? I’m a .NET developer with 13+ years of experience in software development, full stack web development, legacy modernization, system architecture, API integrations, and enterprise-grade business applications. Throughout my career as a .NET developer, I’ve delivered hundreds of successful projects that helped clients improve operations, scale platforms, modernize outdated systems, and generate millions in business value. And now, I’m excited to help take your project to a new level 🔥 As a .NET developer, I don’t just write code. I help build stable, scalable, and maintainable software that solves real business problems. ✅ Wide and deep experience in full stack web development as a .NET developer ✅ Strong ability to build self-sustainable web projects from scratch ✅ Deep knowledge of .NET-compatible technologies and architecture approaches ✅ Strong experience as a full stack developer across frontend, backend, databases, integrations, and cloud ✅ Hands-on experience as an Angular developer building modern, responsive, and scalable frontend applications ✅ Ability to modernize legacy ASP.NET systems and move them toward newer, cleaner architecture My work as a .NET developer usually includes building backend systems, APIs, admin panels, CRM platforms, SaaS applications, enterprise portals, internal tools, and complex business workflows. As a full stack developer, I can handle the full product cycle: database structure, backend logic, API development, frontend implementation, third-party integrations, deployment support, and long-term optimization. As an Angular developer, I build clean frontend interfaces using Angular, TypeScript, HTML, CSS, JavaScript, and modern UI practices. I can create responsive dashboards, admin systems, user portals, CRM interfaces, and complex frontend workflows connected to .NET backend systems. My tech stack as a .NET developer includes: 🔧 C#, .NET Core, .NET Framework 🔧 ASP.NET MVC, Web API, WebForms 🔧 ASP.NET Framework 4.5, 4.7, 4.8 upgrades and conversion to ASP.NET Core 🔧 Angular, AngularJS, TypeScript, JavaScript, HTML, CSS, jQuery 🔧 Entity Framework, ADO.NET 🔧 Databases: MS SQL Server, MySQL 🔧 Dynamics CRM API, callout and workflow plugins 🔧 Microsoft Graph API 🔧 Microsoft Azure / Windows Live OAuth 🔧 Azure services and APIs 🔧 AWS 🔧 HubSpot CRM, HubSpot API, Webhooks, HubSpot CMS, HubL 🔧 IMAP / SMTP, XOAuth2 🔧 Logging libraries: NLog, Log4Net 🔧 Google Shopping API and Google Merchant Center integrations 🔧 Figma-based frontend implementation As a .NET developer, I can help you with: ✔ Building a new web application from scratch ✔ Modernizing an old ASP.NET / WebForms system ✔ Upgrading .NET Framework projects to ASP.NET Core ✔ Creating scalable APIs and backend architecture ✔ Building CRM, ERP, SaaS, and internal business systems ✔ Developing Angular-based frontend applications ✔ Integrating third-party APIs, CRMs, payments, email systems, and cloud services ✔ Improving performance, stability, and maintainability ✔ Refactoring legacy code without breaking existing functionality ✔ Supporting long-term product growth A good .NET developer should understand more than just syntax. A good .NET developer should understand architecture, business logic, integrations, performance, security, maintainability, and how real users interact with the product. That’s exactly how I work. I approach every project as a .NET developer and full stack developer who cares about the final product, not just the task list. I write clean code, think through edge cases, communicate clearly, and focus on building software that can grow with your business. Whether you need a .NET developer for a platform, an Angular developer for a complex frontend, or a full stack developer who can take ownership of the whole system, I can help. Tell me about your project or plans, and I’ll help turn them into a strong, scalable business solution 🔥

🏆 .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