Job Title

Senior Mainframe DeveloperReq number:R6672Employment type:Full timeWorksite flexibility:HybridWho we areCAI is a global technology services firm with over 8,500 associates worldwide and a yearly revenue of $1 billion+. We have over 40 years of excellence in uniting talent and technology to power the possible for our clients, colleagues, and communities. As a privately held company, we have the freedom and focus to do what is right—whatever it takes. Our tailor-made solutions create lasting results across the public and commercial sectors, and we are trailblazers in bringing neurodiversity to the enterprise.Job SummaryWe 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.Job DescriptionWe 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.What You'll DoConfigure and manage mainframe I/O definitions using Hardware Configuration Definition (HCD)Generate and implement IOCDS images and coordinate activations across logical partitionsAnalyze and update existing configurations to support hardware changes, migrations, and upgradesTroubleshoot I/O pathing, device connectivity, and configuration discrepanciesCollaborate with internal teams (z/OS systems, storage, network, hardware engineering) to ensure alignment between logical and physical configurationsMaintain accurate configuration documentation and provide knowledge transfer to permanent staffWhat You'll NeedRequired:Minimum of 5 years of experience defining and maintaining I/O configurations for IBM z/OS systemsProficient in building and managing IOCDS datasets using HCD and IOCP toolsStrong knowledge of IBM z/OS operating system internalsHands-on experience with POR (Power-On Reset) configuration activations and system startupsExpertise in troubleshooting and resolving complex I/O configuration issuesFamiliarity with channel paths, control units, and device definitionsExcellent documentation and communication skillsKnowledge of Sysplex configurations and dynamic I/O reconfigurationExperience in capacity planning and hardware upgradesFamiliarity with disaster recovery planning for I/O configurationsPhysical DemandsAbility to safely and successfully perform the essential job functions consistent with the ADA and other federal, state, and local standardsSedentary work that involves sitting or remaining stationary most of the time with occasional need to move around the office to attend meetings, etc.Ability to conduct repetitive tasks on a computer, utilizing a mouse, keyboard, and monitor#LI-KW1Reasonable accommodation statementIf you require a reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employment selection process, please direct your inquiries to or (888) 824 – 8111.$85p/h - $92p/hThe pay range for this position is listed above. Exact compensation may vary based on several factors, including location, experience, and education. Benefit packages include medical, dental, and vision insurance, as well as 401k retirement account access. Employees in this role may also be entitled to paid sick leave and/or other paid time off as provided by applicable law.