Senior .NET Developer

This is a fully remote position, open to applicants in North Carolina.

📋 Description

• Oversee the transition of the Volunteer Impact backend from VB.NET/.NET Framework to C#/.NET 10, establishing the migration strategy and implementing it incrementally on a live production system.

• Revamp a custom security framework (70+ custom attributes) to function effectively on the new stack, ensuring zero authorization bypasses.

• Enhance the current CI/CD pipeline and collaborate with our quality engineering team to integrate checks that detect functional and performance regressions prior to reaching production.

• Deploy migrated components to production in a standalone and incremental manner while the legacy application continues to operate.

• Serve as the second engineer capable of independently creating, validating, and releasing a production deployment.

• Identify, assess, and substitute outdated dependencies lacking a transition path to modern .NET, ensuring no functional or performance regressions are introduced.

• Make informed technical decisions regarding the order of migrations, timing of dependency replacements, and the feasibility of automated conversion versus manual rewrites.

• Establish a solid foundation for team growth by modernizing the stack to one that is accessible for any C# developer.

⛳️ Requirements

• A minimum of 8 years of professional experience with C#/.NET, demonstrating substantial expertise in the framework beyond just the latest version.

• Proven experience in leading or serving as the technical anchor on a migration from .NET Framework to .NET Core (or newer) of a substantial production monolith catering to paying customers.

• Experience in incrementally migrating a production system with minimal downtime, along with the ability to articulate the methodology you would employ in this scenario.

• Strong NHibernate expertise is highly preferred, as we intend to retain NHibernate to mitigate migration risks. Understanding a mature data access layer and knowing where modernization can be beneficial without unnecessary disruption is valuable.

• Demonstrated experience in replacing legacy dependencies in production environments, including DI containers, bundling frameworks, service hosting, and unsupported third-party libraries. Ability to swap essential components without halting operations is crucial.

• Practical experience with legacy .NET ecosystem components, including ASP.NET MVC-to-Core routing, custom security frameworks, and dependencies lacking a straightforward upgrade path.

• Familiarity with the migration of SSRS reports to a modern reporting platform is advantageous. Given our extensive reporting footprint, preserving report functionality during this transition would be beneficial.

• Experience in enhancing CI/CD pipelines for .NET applications and collaborating with a quality function to establish gates that catch functional and performance regressions early in the process.

• Comfortable working within a small core team with shared DevOps and DBA support, alongside a dedicated quality engineering partner responsible for the regression gate across our platforms. Ability to make sound technical decisions, debug issues hands-on, and know when to seek appropriate assistance is necessary.

• Familiarity with VB.NET is a plus, but not a requirement, as the focus of the role is on conversion rather than maintenance of VB.NET.

🏝️ Benefits

• Medical, dental & vision insurance (available after 90 days).

• 401(k) plan (available after 90 days).

• Unlimited vacation along with 9 paid holidays.

• Paid parental leave.

• Competitive compensation package.