Barad A.
Expert .NET Developer | C# | ASP.NET Core | Web API | Entity Framework
15+ Years of Experience | .NET | C# | ASP.NET Core | Web API | REST API | Entity Framework Core | SQL Server | Backend Development Are you looking for a Senior .NET Developer who can understand your business requirements, solve complex technical problems, and take ownership of your project from development to delivery? I’m Ajay, a Senior .NET Developer with 15+ years of hands-on experience building reliable, scalable, secure, and maintainable software solutions for startups, agencies, and businesses. My core expertise includes C#, .NET, ASP.NET Core, Web API, REST APIs, Entity Framework Core, LINQ, SQL Server, MySQL, database development, and enterprise backend systems. I don’t just write code from specifications. I understand the business problem, evaluate the existing system, design practical solutions, write clean code, troubleshoot issues, optimize performance, and help deliver production-ready software. 🚀 What I Can Help You With - Senior .NET and C# development - ASP.NET Core application development - Modern .NET development - Enterprise software development - Business applications and workflows - Backend systems and services - Custom software development - Legacy application modernization - Code refactoring and optimization - New feature development - Bug fixing and ongoing maintenance ⚙️ ASP.NET Core & Web API - ASP.NET Core Web API - RESTful API development - Scalable backend architecture - API design and integration - Third-party API integration - JWT authentication - Authorization and role-based access control - Secure API development - API performance optimization - Logging and exception handling - API documentation and testing 🗄️ Database & Data Development - SQL Server - MySQL - SQLite - Entity Framework Core - LINQ - Database design - Stored procedures - Query optimization - Database migrations - Data modeling - Transactions and concurrency - Performance tuning I focus on building efficient data access layers and optimized database solutions that remain reliable as your application and data grow. 🏗️ Architecture & Best Practices Good software architecture is essential for applications that need to grow. I follow proven engineering practices such as: - Clean Architecture - SOLID principles - Object-Oriented Programming - Design Patterns - Dependency Injection - Separation of Concerns - Repository and Service patterns - Modular architecture - API-first development - Reusable components - Secure coding practices - Error handling and logging - Unit and integration testing - Performance optimization - Git-based development My goal is to deliver clean, scalable, secure, testable, and maintainable software, not just code that works today. 🔄 Have an Existing .NET Application? If you already have a .NET application, ASP.NET Core API, C# codebase, or SQL database, I can help you improve, maintain, and extend it. I can help with: 🐛 Difficult bugs and production issues ⚡ Slow APIs and application performance 🔧 Code refactoring and technical debt 🏗️ Architecture improvements 🔄 .NET application modernization 🔌 Third-party API integrations 🔐 Authentication and authorization 🗄️ Database and query optimization 🚀 New features and modules 🧪 Testing and debugging 📈 Scalability improvements 🛠️ Long-term development and maintenance I’m comfortable joining an existing project, understanding an unfamiliar codebase, identifying root causes, and making improvements without unnecessarily disrupting existing functionality. 📊 Business Applications & Systems I can develop and enhance solutions for: - Booking and scheduling systems - Order management - eCommerce platforms - Inventory management - Customer management - Vendor and partner management - Reporting systems - Workforce management - Business process automation - Enterprise workflows - Data management systems - Custom internal business applications ⭐ Why Work With Me? You’re not just hiring a developer to complete tickets. You’re hiring a senior technical partner who can understand the bigger picture, make practical technical decisions, and take ownership of the solution. With 13+ years of experience, I bring strong problem-solving skills, hands-on .NET expertise, and a business-focused approach to development. I value: Clean Code • Clear Communication • Practical Architecture • Reliable Delivery • Long-Term Maintainability Whether you need to build a new .NET application, develop a high-performance Web API, modernize an existing system, optimize SQL queries, fix critical bugs, integrate third-party services, or add new functionality, I can help. 💼 Let's Discuss Your .NET Project Looking for a Senior .NET / C# Developer for your next project? Send me your requirements, existing codebase, or project details. I’ll quickly understand your needs and recommend the right technical approach. Let’s build a reliable, scalable .NET solution together.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $25
Billed in all: $17,584$18k
$2 in the last 6 months
Across 142 contracts
Earnings, last 30 days
Skill rankings: Top 25% in Xamarin
Ranked by MRR among everyone on Upwork with the skill.
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