Sr. Dot Net Developer

About us:
Nyros is a Web & Mobile apps development agency with a global team of designers, developers and managers. Our goal is to expand opportunities for anyone to imagine, design, and make a better world.

Position Summary:
We are seeking an experienced .NET Developer to lead the migration of a large-scale ASP.NET C# 4.0 Web Forms application into a modern ASP.NET Core MVC architecture. The ideal candidate should have a strong background in legacy .NET Framework applications, deep knowledge of modern .NET Core, and experience in designing scalable, maintainable, and secure enterprise applications with a modern user interface.

Key Responsibilities:

• Analyze the existing ASP.NET Web Forms application (C# 4.0) to understand functionality, dependencies, and architecture.
• Plan and execute the migration strategy from Web Forms to ASP.NET Core MVC.
• Redesign application components following modern software design patterns (MVC, Repository, Dependency Injection, etc.).
• Migrate data access layer from ADO.NET/legacy ORM to Entity Framework Core or another modern ORM.
• Modernize the UI/UX using Razor Pages, Blazor, or integration with front-end frameworks (React/Angular/Vue) as required.
• Ensure cross-platform compatibility and deployment readiness on Windows/Linux cloud environments (Azure, AWS, or on-premises).
• Optimize application performance, security, and scalability during migration.
• Write unit tests, integration tests, and automated deployment scripts to ensure code quality.
• Collaborate with QA, DevOps, and design teams to deliver a seamless migration.
• Provide documentation and training to internal teams for post-migration maintenance.

Required Skills & Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 3+ years of experience in .NET development.
• Strong knowledge of C#, ASP.NET Web Forms (4.0/4.5), and legacy .NET Framework applications.
• Proven experience in ASP.NET Core (5/6/7/8) MVC and related technologies.
• Proficiency with Entity Framework Core, LINQ, SQL Server, and database migration strategies.
• Experience with front-end frameworks (Bootstrap, jQuery, React, Angular, or Vue) for modern UI design.
• Hands-on experience with REST APIs, JSON, Web API migration, and microservices architecture.
• Knowledge of dependency injection, middleware, logging, and configuration management in ASP.NET Core.
• Familiarity with Azure DevOps, Git, CI/CD pipelines, Docker, and Kubernetes.
• Strong understanding of application security best practices (OWASP, identity management, OAuth, JWT, etc.).
• Excellent problem-solving skills, attention to detail, and ability to work independently.

Nice-to-Have Skills:

• Experience in Blazor or MAUI for modernizing UI further.
• Knowledge of cloud-native application design (Azure/AWS).
• Familiarity with message queues (RabbitMQ, Kafka).
• Prior experience in application modernization projects.

Job Type: Full-time

Work Location: In person