Senior Mainframe Developer

Computer AidTrenton, NJ
32d$85 - $92Hybrid

About The Position

We are looking for a motivated Senior Mainframe Developer ready to take us to the next level! If you have 5+ years mainframe development, strong knowledge of IBM z/OS, and are looking for your next career move, apply now. We are seeking an experienced Senior Mainframe Developer with deep expertise in I/O configuration management to support our IBM Z environment. This hands-on role focuses on configuration delivery, ensuring environment stability, and implementing project-based infrastructure changes. This will be a full-time contract opportunity and be hybrid onsite in Trenton, NJ.

Requirements

  • Minimum of 5 years of experience defining and maintaining I/O configurations for IBM z/OS systems
  • Proficient in building and managing IOCDS datasets using HCD and IOCP tools
  • Strong knowledge of IBM z/OS operating system internals
  • Hands-on experience with POR (Power-On Reset) configuration activations and system startups
  • Expertise in troubleshooting and resolving complex I/O configuration issues
  • Familiarity with channel paths, control units, and device definitions
  • Excellent documentation and communication skills
  • Knowledge of Sysplex configurations and dynamic I/O reconfiguration
  • Experience in capacity planning and hardware upgrades
  • Familiarity with disaster recovery planning for I/O configurations

Responsibilities

  • Configure and manage mainframe I/O definitions using Hardware Configuration Definition (HCD)
  • Generate and implement IOCDS images and coordinate activations across logical partitions
  • Analyze and update existing configurations to support hardware changes, migrations, and upgrades
  • Troubleshoot I/O pathing, device connectivity, and configuration discrepancies
  • Collaborate with internal teams (z/OS systems, storage, network, hardware engineering) to ensure alignment between logical and physical configurations
  • Maintain accurate configuration documentation and provide knowledge transfer to permanent staff

Benefits

  • medical
  • dental
  • vision insurance
  • 401k retirement account access
  • paid sick leave
  • paid time off

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What This Job Offers

Job Type

Full-time

Career Level

Mid Level

Industry

Professional, Scientific, and Technical Services

Education Level

No Education Listed

Number of Employees

1,001-5,000 employees

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