Mainframe Application Support Engineer

Location: Hyderabad, India

Experience Required: 6+ Years

Employment Type: Full-time

We are seeking an experienced Mainframe/Unix Production Application Support Engineer to join our Production Support team. The ideal candidate will have a strong background in Mainframe systems (JCL, COBOL, DB2, CICS) and/or Unix/Linux environments (Shell scripting, Oracle/SQL, Autosys/Control-M). You will be responsible for ensuring the stability, availability, and performance of business-critical applications in a 24x7 production environment.

• Provide L2/L3 production support for mainframe and Unix-based applications.
• Monitor batch jobs, handle job failures, and perform timely incident resolution.
• Perform root cause analysis (RCA) for recurring incidents and propose permanent fixes.
• Collaborate with development, infrastructure, and QA teams for issue resolution and enhancements.
• Maintain and support automation scripts, cron jobs, and production deployment activities.
• Manage incident, problem, and change management processes using ITIL practices.
• Work in 24x7 rotational shifts or on-call support as required.
• Participate in disaster recovery planning and environment health checks.
• Prepare and maintain support documentation, SOPs, and runbooks.

• Strong knowledge of JCL, COBOL, DB2, CICS, VSAM.
• Experience with job scheduling tools (e.g., Control-M, CA-7, Autosys).
• Familiarity with file transfers (NDM, FTP, SFTP).
• Hands-on experience in incident debugging and log analysis.

• Expertise in Unix shell scripting (Bash/Korn).
• Experience with Oracle/SQL or PL/SQL for data validation and issue analysis.
• Knowledge of job automation tools (Autosys, Control-M).
• Understanding of networking, file systems, and performance tuning.

• Experience in production monitoring tools (e.g., Splunk, AppDynamics, Dynatrace, BMC Patrol).
• Familiar with ITIL processes (Incident, Problem, Change Management).
• Strong analytical, troubleshooting, and communication skills.
• Exposure to Agile or DevOps environments is a plus.