**Job Description:** We are seeking a Specialist for Application Support with a strong background in .NET, C#, and Windows/IIS environments to lead the maintenance and enhancement of enterprise applications. The ideal candidate will have 5–8 years of experience and demonstrate leadership in troubleshooting and mentoring. **Key Responsibilities** + Provide advanced support, troubleshooting, and enhancement of .NET and C# enterprise applications. + Analyze complex issues in codebases and collaborate with other teams to plan and implement upgrades and enhancements. + Lead all phases of the SDLC for maintenance and post-production support. + Manage and tune IIS and Windows Server environments for optimal performance. + Develop and maintain PowerShell and shell scripts for automation. + Mentor junior team members and document best practices and troubleshooting steps. + Coordinate with middleware teams for cross-platform integration and support. + Support CI/CD pipeline automation for efficient deployment. **Required Skills & Experience** + 5 to 8 years of experience supporting enterprise .NET/C# applications. + Expert in .NET Framework/Core, C#, ASP, IIS, and Windows Server. + Advanced scripting with PowerShell and shell. + Strong troubleshooting and root cause analysis skills. + Experience with CI/CD tools and version control. + Excellent leadership, documentation, and communication skills. **Good-to-Have Skills** + Azure cloud administration or migration. + Familiarity with Java middleware for integration. **Qualifications** Bachelor’s or master’s degree in computer science, Information Technology, or a related field. **Weekly Hours:** 40 **Time Type:** Regular **Location:** Hyderabad, Andhra Pradesh, India It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made. AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status