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Mainframe z / OS Systems Programmer

Mainframe z / OS Systems Programmer

OrangepeopleChennai, TN, India
2 days ago
Job type
  • Quick Apply
Job description

Join a team where your expertise as a z / OS System Administrator makes a real impact! In this critical role, you'll help maintain and optimize a robust Mainframe environment, leveraging deep technical knowledge of z / OS systems. With hands-on experience in hardware refresh projects and a passion for delivering service excellence, you'll be at the forefront of keeping systems running smoothly and efficiently.

Years of experience required : +15 years.

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 :

    • Producing clear system diagrams, runbooks, and upgrade plans, while collaborating with application teams, storage, networking, and security groups.

  • 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 minimal 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.
  • Mentorship & Knowledge Sharing

    • Training junior staff on mainframe fundamentals.

  • Creating internal guides and cheat sheets for recurring tasks.
  • Participating in user groups like IBM SHARE or local meetups.

    • Benefits :

  • Health Insurance, Accident Insurance.
  • The salary will be determined based on several factors including, but not limited to, location, relevant education, qualifications, experience, technical skills, and business needs.

    • Additional Responsibilities :

  • Participate in OP monthly team meetings, and participate in team-building efforts.
  • Contribute to OP technical discussions, peer reviews, etc.
  • Contribute content and collaborate via the OP-Wiki / Knowledge Base.
  • Provide status reports to OP Account Management as requested.

    • About us :

    OP is a technology consulting and solutions company, offering advisory and managed services, innovative platforms, and staffing solutions across a wide range of fields - including AI, cyber security, enterprise architecture, and beyond. Our most valuable asset is our people : dynamic, creative thinkers, who are passionate about doing quality work. As a member of the OP team, you will have access to industry-leading consulting practices, strategies & and technologies, innovative training & education. An ideal OP team member is a technology leader with a proven track record of technical excellence and a strong focus on process and methodology.

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    Mainframe Programmer • Chennai, TN, India