We are looking for an experienced Senior .NET Developer with expertise in legacy application modernization, .NET framework upgrades, system integrations, API development, and automated testing. The ideal candidate should be capable of upgrading older .NET applications, working on enterprise-scale solutions, integrating external systems, and ensuring software quality through unit testing and best coding practices.

Key Responsibilities
Upgrade and modernize legacy .NET applications to newer .NET versions.
Analyze existing applications and recommend modernization approaches.
Develop, maintain, and enhance enterprise-grade applications.
Design and integrate REST APIs and third-party services.
Refactor legacy code and improve application performance.
Implement coding standards, design patterns, and best practices.
Develop and execute unit and integration tests.
Troubleshoot production issues and perform root cause analysis.
Participate in code reviews and technical discussions.
Support CI/CD and DevOps initiatives.
Deploy and troubleshoot applications hosted on IIS.

Required Skills
Solid experience in C# and .NET Framework 4.x
Experience in .NET migration and application modernization projects




Good understanding of Life Insurance Agent Lifecycle
Ability to understand and refactor undocumented legacy code
Hands-on experience with OAuth2, JWT, RSA, and certificate management
Experience working with WCF Services
REST API integrations using HttpClient
JSON processing using Newtonsoft.Json or System.Text.Json
Experience with PayPal payment gateway integration
Experience with DocuSign e-signature platform
Robust knowledge of ASP.NET MVC
SQL Server and ADO.NET development
Unit Testing using xUnit and Moq
Version control using Git
NuGet package management
IIS deployment and troubleshooting
Experience with logging frameworks such as log4net
Excellent communication and stakeholder management skills

Preferred Candidate Profile
8+ years of experience in .NET development.
Robust experience in legacy system modernization and framework upgrades.
Hands-on experience with authentication and security integrations.
Exposure to Life Insurance domain applications.
Experience working in Agile and DevOps settings.

Education
Bachelor's or Master's Degree in Computer Science, Engineering, or a related field.

📌 Senior Net Developer Bengaluru
🏢 Maveric
📍 Bengaluru