L3 Application Support Engineer (AS400)
Confirmed on the employer's own hiring board on Nov 6, 2026. First seen by Alion on Nov 2, 2026.
We're Hiring: L3 Application Support Engineer (AS400 / .NET)
Location: Bangalore (Whitefield)
Experience Levels & Vacancies:
- Senior (9+ years): 1 Position
- Mid-Level (79 years): 1 Position
About the Role:
Were seeking experienced L3 Application Support Engineers to join our enterprise IT team, with a focus on AS400-based systems and .NET/Windows environments. This is a high-impact role where youll be responsible for advanced incident resolution, root cause analysis, and ensuring application stability for critical business systems.
Key Responsibilities:
- Troubleshoot and resolve complex issues in production environments.
- Perform root cause analysis (RCA) on recurring incidents and proactively monitor applications using Dynatrace, IBM monitoring, and system logs.
- Understand how applications are built, deployed, and managedincluding batch jobs
and real-time integrations.
- Debug issues in RPG, COBOL, DB2, .NET, and Java
applications.
- Collaborate with development and infra teams to escalate, resolve, and document issues.
- Create and maintain SOP documents, training materials, and knowledge bases.
- Conduct user training and communicate updates effectively across teams.
Must-Have Skills:
Senior Role (AS400-focused):
- Deep understanding of AS400, RPG, COBOL, DB2 SQL, and CL (Command Line).
- Strong SQL skills and log reading/interpretation.
- Ability to debug legacy code and support complex application integrations.
Mid-Level Role (.NET-focused):
- Strong expertise in Windows OS, .NET, Java, APIs, and SQL.
- Familiarity with application architecture, trend analysis, and proactive monitoring.
Common Requirements:
- High-end troubleshooting, reasoning, and problem-solving
skills.
- Strong verbal and written communication skills.
- Experience with Dynatrace, IBM application monitoring tools, and real-time system support.
Preferred Skills (Should Have):
- Hands-on experience in API, Java, and .NET
development/support.
- Knowledge of networking fundamentals.
- Experience in user training, SOP creation, and knowledge management.
Nice to Have (Secondary):
- Scripting experience (any language).
- Exposure to cloud-hosted applications (MPI/POD).
WhatsApp: +91 7013663419
Email: [email protected]
Apply now and become a key contributor in supporting mission-critical enterprise applications in a fast-paced, tech-driven environment.
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