ASP.NET WebForms Full Stack Developer

We are looking for a resilient, detail-oriented Full Stack Developer to join our Technical Support Engineering team. This role focuses on actively developing, supporting, and evolving a mission-critical ASP.NET WebForms platform. You will work hands-on in a large legacy codebase, delivering bug fixes, performance improvements, and new features—while helping document and guide its future modernization.

This is a high-impact role for someone who enjoys deep technical problem-solving and taking ownership of complex systems.

What You’ll Do

• Develop, maintain, and support a large-scale ASP.NET WebForms application

• Design, develop, and support .NET console applications for background processing and automation

• Troubleshoot and resolve complex production issues using logs, debugging, and root-cause analysis

• Write and optimize advanced SQL queries, stored procedures, and views

• Build and maintain simple .NET APIs and background jobs

• Collaborate with QA and Customer Success to reproduce issues and explain technical causes

• Document legacy logic and contribute to ongoing system improvements

What You Bring

Required

• 3+ years of hands-on experience developing with ASP.NET WebForms

• 4+ years of experience with C#/VB.NET and .NET Framework (4.6.1, 4.7.2, 4.8+)

• Experience developing and maintaining .NET console applications

• 4+ years of advanced SQL development, including performance tuning and production support

• Strong front-end fundamentals: HTML, CSS, JavaScript, jQuery

• Solid understanding of ASP.NET WebForms state management and page lifecycle

• Strong troubleshooting skills and a patient, methodical problem-solving approach

• Ability to clearly explain technical issues to non-technical stakeholders

• A mindset oriented toward quality, maintainability, and gradual modernization

Nice to Have

• React or Next.js experience

• Azure DevOps and CI/CD pipelines

• Cloud exposure (especially Azure)

• Experience modernizing legacy .NET applications

• Familiarity with logging frameworks and Windows-based .NET applications

• Experience with Hangfire, background processing, and email templating

• Experience with .NET Core / .NET 6+