Infra. Architect

2 weeks ago

Coimbatore Tamil Nadu, India Cognizant Full time

**Job Description:

- **
- Excellent understanding of System z architecture
- Excellent experience with IBM z/OS operating system
- Experience in building Mainframe LPAR and OS Upgrades
- Knowledge Catalog management, IBM system utilities
- Knowledge on VTAM, TCPIP, ACF2 and GDPS
- Experience on z/VM, zVSE and z/Linux
- Installation of patches and fixes
- Installation and maintenance of ISV products, REXX, RMF, SMF
- Administration and configuration of z/VM Operating Systems running SuSE or RedHat Linux
- Installation and customization of z/VM and related IBM or other ISV software;
- Extensive experience with providing performance and tuning using monitoring tools (f. ex. z/VM Performance Monitor or other tools);
- DIRMAINT administration - RACF/Top secret administration;
- REXX knowledge - SSI knowledge;
- Ability to support network configuration and maintenance (Real TCP/IP stack, VSWITCH, TCPIP tools in z/VM, etc.);
- Solid skills in z/Linux system cloning and configuration including memory and file system allocation;
- System parameters/parmlib maintenance
- Managing incidents on z/OS related issues
- z/OS performance monitoring and reporting
- Knowledge on DFSMS, DFSMShsm, Flashcopy, ICF Catalogs, HCD
- Capable of planning and supporting Disaster recovery exercises
- Performance tuning & Development of operational procedures
- Experience with system indicators (logs, dumps, error) logs for pro-active management of system problems
- Installation and maintenance of ISV products (For zVM, ZVSE and zOS)
- Ability to work with Developers in fixing issues

Key Responsibilities:

- Incident Management / Problem Management by performing problem analysis and resolution implementation
- Support maintenance release and major OS upgrades.
- Process client requests for system software modifications
- Review system indicators (logs, dumps, error) logs for pro-active management of system problems
- Work with operations to monitor, maintain and IPL systems to improve consistency and availability
- Monitor / Tune system performance and work with performance engineering and capacity teams
- Ensure availability and performance objectives, as required by clients and management, are maintained for operating systems and for system software components
- Implement appropriate tools and processes to automate repeated tasks
- Manage various license codes for infrastructure software.
- Capable of planning and supporting Disaster recovery exercises
- Performance tuning & Development of operational procedures
- Implement changes as needed to support other towers and day-to-day operations.
- Work with IBM and other Independent Software Vendors on a regular basis
- Provide regular management reports / analysis to senior management team regarding Incidents, Changes and requests

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