**Req ID**: ******
We are currently seeking a Mainframe OS Systems Programmer to join our team in Guadalajara, Jalisco (MX-JAL), Mexico (MX).
Comprehensive responsibility breakdown, skills matrix and soft skills for a **Mainframe z/OS Systems Programmer** specializing in **hardware refresh, product upgrades, and software lifecycle management** using advanced tools like **SMP/E, z/OSMF, Broadcom, IBM, and BMC utilities.
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**Years of experience required**: +15 yrs
**Responsibilities**:
**Operating System Knowledge**
Deep mastery of z/OS architecture, including IPL procedures, JES2/JES3 configurations, Sysplex management, SMF data collection, and parmlib customization.
**Programming Skills**
Proficient in writing and debugging system-level routines and automation:
- Assembler for exits and control blocks
- REXX for scripting and batch utilities
- JCL for job submission, parameterization, and workflow control
**System Administration**
Managing hardware and logical resources across LPARs:
- DASD and tape allocation via HCD/HCM
- LPAR configuration in HMC
- Security administration using RACF or equivalent
**Problem-Solving Skills**
Analytical troubleshooting of abends, storage hangs, and performance anomalies using:
- Dump analysis with IPCS
- SLIP and trace tools
- System logs and console messages
**Backup and Recovery**
Ensuring data integrity and swift recovery with:
- DFSMShsm policies and recall management
- FDR/ABR for high-speed backups
- FlashCopy or virtual tape replication for near-instant restores
**Performance Monitoring**
Optimizing system throughput and response times utilizing:
- RMF and SMF report analysis
- OMEGAMON or BMC MainView dashboards
- WLM classification and tuning
**Networking Knowledge**
Configuring and supporting mainframe connectivity:
- VTAM and SNA definitions
- TCP/IP stack on z/OS




- OSA adapter and Coupling Facility communication
**Documentation and Communication**
**Continuous Learning**
Staying current on IBM Redbooks, z/OS release notes, firmware updates, and attending vendor training (IBM, Broadcom, BMC) or industry conferences.
**Software Maintenance & Upgrade Tools**
Executing OS and product upgrades with industry-standard utilities:
- SMP/E for PTF, APAR, and deliverable management
- z/OSMF workflows for streamlined maintenance
- Broadcom (e.g., Topaz), IBM, and BMC tooling for fix management and compliance reporting
**Project Management & Hardware Refresh**
Planning and leading hardware refreshes, feature activations, and migrations with mínimal downtime, including IPL scheduling, vendor coordination, and change-control governance.
Soft Skills:
Communication & Collaboration
- Clear documentation of system changes, configurations, and procedures
- Cross-functional teamwork with developers, DBAs, and network engineers
- Stakeholder engagement to explain technical issues in business terms
Analytical Thinking & Problem Solving
- Root cause analysis for system outages and performance issues
- Pattern recognition across logs, dumps, and metrics
- Decision-making under pressure, especially during incident response
Adaptability & Continuous Learning
- Staying current with z/OS updates, SMP/E practices, and IBM tools
- Embracing modernization trends like Zowe, z/OSMF, and hybrid cloud integration
- Learning new scripting languages (REXX, CLIST) and automation tools
Patience & Resilience
- Handling legacy systems with limited documentation
- Managing long upgrade cycles and complex migrations
- Remaining calm during critical system failures or audits
Attention to Detail
- Precision in JCL scripting, IPL procedures, and system configurations
- Vigilance in security settings, RACF profiles, and access controls
- Thoroughness in change management and rollback planning
**About NTT DATA

📌 Mainframe Os Systems Programmer (Guadalajara)
🏢 Ntt Data
📍 Guadalajara