.Net Full Stack Developer C#

About

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.

Responsibilities

• 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

Requirements

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+