Offer summary

Qualifications:

Proficiency in C# and .NET Core/.NET 6+ technologies., Experience with legacy ASP or ASP.NET Web Forms applications., Knowledge of CI/CD pipelines using tools like GitHub Actions or Azure DevOps., Strong understanding of Microsoft IIS administration and troubleshooting..

Key responsibilities:

Maintain and enhance existing ASP applications with a focus on quality and security.

Modernize application components using Blazor WebAssembly and .NET Core.

Integrate ValPay payment solutions into workflows, ensuring PCI compliance.

Manage and troubleshoot IIS-hosted applications and CI/CD pipelines.

Job description

Keystone, a division of Valsoft, is seeking a highly motivated Fullstack Developer to support and modernize our Microsoftbased application stack. This role involves maintaining and enhancing an existing legacy ASP application, assisting in the transition to modern technologies (e.g., Blazor, .NET Core), integrating with ValPay, and managing CICD pipelines and IIShosted infrastructure.

We are open to junior candidates with high learning capacity and strong technical fundamentals who are eager to take ownership and grow within a fastpaced, pragmatic development environment.

Key Responsibilities

Maintain and extend a production ASP (ClassicASP.NET Web Forms) application with high attention to quality, security, and performance.

Modernize components of the application using Blazor WebAssembly, C#, and .NET Core as part of a longterm migration strategy.

Integrate ValPay (Valsoft’s preferred payment solution) into the existing payment workflows, ensuring PCIcompliant implementation and smooth user experience.

Manage and troubleshoot Windows Server environments, particularly IIShosted applications, ensuring reliability and minimal downtime.

Design, implement, and improve CICD pipelines, leveraging GitHub Actions, Azure DevOps, or comparable tools.

Document systems, processes, and technical decisions clearly and thoroughly

Requirements

Proficiency in C# and .NET Core.NET 6+ (ASP.NET, Blazor WebAssembly, Razor Components).

Familiarity with legacy ASP or ASP.NET Web Forms applications.

Experience with CICD pipelines (e.g., GitHub Actions, Azure DevOps, Jenkins).

Solid understanding of Microsoft IIS administration, including deployment, troubleshooting, and log analysis.

Working knowledge of HTMLCSSJavaScript, particularly in the context of Blazor or WebAssembly.

Comfort with Gitbased workflows and branch strategies.

Strong analytical and problemsolving skills.

Excellent verbal and written communication.

Preferred Qualifications

Familiarity with payment integration libraries (e.g., Adyen, Stripe).

Exposure to multivalue databases.

Understanding of DevOps practices and the software development lifecycle (SDLC).

Experience with automated testing and testdriven development (TDD).

Ability to thrive in a hybrid legacymodern codebase and help reduce technical debt incrementally.