Criticalriver Technologies - Senior.Net Developer - System Design

About the Role :

We are seeking a Senior .NET Developer with strong hands-on experience in .NET Framework 4.7.2 and a forward-looking mindset to eventually support the migration to .NET 8 / Core. The ideal candidate will play a crucial role in the development and enhancement of enterprise-level applications with a focus on clean code, scalable architecture, and maintainability.

This role is highly suited for someone with deep expertise in .NET ecosystems, proven experience in large-scale system migrations, and familiarity with complex business domains such as fleet management, logistics, public transportation, and equipment-based services.

Key Responsibilities :

• Design, develop, and maintain high-quality, reusable, and reliable code using .NET Framework 4.7.2, ensuring high performance and responsiveness.
• Develop backend components, web services, and APIs to support application functionality.
• Participate in system design and technical discussions to deliver efficient solutions aligned with business objectives.
• Strategize and contribute to the migration from .NET Framework 4.7.2 to .NET 8 / .NET Core.
• Support refactoring of legacy code, including architecture upgrades, dependency management, and environment configurations.
• Identify migration challenges and propose efficient, maintainable paths forward.
• Mentor team members on migration best practices, potential pitfalls, and performance optimization.
• Perform code reviews, enforce coding standards, and ensure adherence to best practices in performance, scalability, and maintainability.
• Debug and resolve complex technical issues across application layers.
• Collaborate in writing unit tests, integration tests, and automated test cases to ensure code reliability.
• Work closely with QA, DevOps, UI / UX, and Product teams to ensure seamless delivery of features.
• Collaborate with cross-functional teams to analyze user requirements and translate them into technical tasks.
• Contribute to maintaining technical documentation, system design documents, and operational procedures.
• Provide post-deployment support and troubleshoot live issues as needed.

Required Technical Skills :

Experience in migrating large monolithic applications to .NET 8 / .NET Core, including :

1. Code restructuring and architectural changes

2. Dependency replacement strategies

3. CI / CD compatibility

(ref : hirist.tech)