Mainframe Support Engineer ensuring stability and performance of enterprise mainframe systems. Troubleshooting complex issues and collaborating with development, operations, and security teams for optimal system management.
Responsibilities
Monitor and support enterprise mainframe applications, ensuring high availability, optimal performance, and system security
Troubleshoot technical issues, diagnose root causes, and implement timely resolutions to prevent or minimize outages
Support system upgrades, patches, and deployment activities in coordination with development and operations teams
Analyze system performance metrics, conduct tuning, and recommend improvements for system stability and scalability
Manage incident logs, coordinate resolution efforts, and communicate issues and resolutions effectively to stakeholders
Develop and maintain operational documentation, runbooks, and best practice procedures
Collaborate on system enhancements, security updates, and compliance activities
Support off-hours on-call rotation for critical system incidents and performance issues
Requirements
5+ years of experience supporting and troubleshooting mainframe applications in large enterprise environments
Strong proficiency in COBOL, JCL, DB2, and VSAM for mainframe application support and troubleshooting
Hands-on experience with mainframe operating environments, including system monitoring and performance tuning tools
Experience with scripting languages such as Shell, Python, or Perl for automation and operational scripting
Familiarity with ticketing and incident management tools such as ServiceNow and Jira
Knowledge of security standards and compliance frameworks relevant to mainframe environments
Bachelor's or Master's degree in Computer Science, Information Technology, or related discipline
Experience with COBOL, JCL, DB2, VSAM, and mainframe system management tools
Certifications in security or mainframe support (e.g., IBM Mainframe certifications, ITIL) are advantageous
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