Full Stack Developer (ASP.NET Web Forms)

We are looking for a resilient, detail\-oriented F **ull 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. **What You’ll Do** * Application Development \& Maintenance: Develop, maintain, and enhance a large‑scale ASP.NET WebForms application, ensuring stability, performance, and long‑term reliability across the full stack. * Background Processing \& Automation: Design, develop, and support .NET console applications used for background processing, automation tasks, and system‑level workflows. * Production Support \& Troubleshooting: Troubleshoot and resolve complex production issues through log analysis, debugging, and thorough root‑cause investigation. * Database Development \& Optimization: Write and optimize advanced SQL queries, stored procedures, and views that support critical functionality and improve database performance. * API Development \& Integration: Build and maintain simple .NET APIs and background jobs that enable system integrations and automated internal processes. * Cross‑Team Collaboration: Collaborate with QA and Customer Success to reproduce issues, communicate technical findings, and ensure smooth deployment of fixes and enhancements. * Documentation \& Continuous Improvement: Document legacy logic, clarify system behavior, and contribute to ongoing improvements that increase maintainability and reduce technical debt. **Required** ***Skills You’ll Need*** * ASP.NET WebForms Experience: 3\+ years of hands‑on experience developing and supporting applications built with ASP.NET WebForms. * .NET Framework Expertise: 3\+ years of experience working with C\#/VB.NET and the .NET Framework, including versions 4\.6\.1, 4\.7\.2, and 4\.8\+. * Console Application Development: Experienced in creating and maintaining .NET console applications used for automation, background processing, and internal tooling. * Advanced SQL Development: 4\+ years of advanced SQL experience, including writing complex queries, performance tuning, and supporting production environments. * Front‑End Skills: Strong foundation in HTML, CSS, JavaScript, and jQuery with the ability to build and troubleshoot WebForms front‑end components. * Troubleshooting \& Problem‑Solving: Demonstrates strong debugging skills with a patient, methodical approach to identifying and resolving issues. * Stakeholder Communication: Able to clearly explain technical concepts, constraints, and solutions to non‑technical team members and stakeholders. * Quality \& Modernization Mindset: Committed to writing maintainable code, improving system reliability, and contributing to gradual modernization initiatives. *Nice to Have* * Modern Front‑End Frameworks: Experience with React or Next.js. * DevOps \& Automation: Familiarity with Azure DevOps and CI/CD pipelines. * Cloud Technologies: Exposure to cloud platforms, especially Azure. * Legacy Modernization: Experience modernizing older .NET / WebForms systems. * Application Logging: Knowledge of logging frameworks and Windows‑based .NET applications. * Background Processing: Experience with Hangfire, background jobs, and email templating. * Modern .NET: Exposure to .NET Core / .NET 6\+ development. **What You’ll Get** * Leadership \& Growth: Work directly with senior leadership, reporting to the CTO, in an autonomous and entrepreneurial culture with zero bureaucracy. * Remote Work \& Flexibility: Frontline is a fully distributed organization. * Competitive Compensation