Mainframe IMS Engineer

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward‑thinking organization, apply now. We are currently seeking a Mainframe IMS Engineer to join our team in GDL, MX, Jalisco (MX-JAL), Mexico (MX). Comprehensive responsibility breakdown, skills matrix and soft skills for Mainframe IMS Engineer. Years of experience required: +15 years Responsibilities Product Install/Upgrade Product install/upgrades/maintenance and customization with usermods. Supporting Product Support Managing supporting software products. CICS Configuration Configuration of CICS and setting up subsystem connectivity. Plan, test, and implement IMS software upgrades, RSU, and feature enhancements. Deep understanding of IMS/TM and IMS/DB subsystems, message processing regions, and how IMS fits within a z/OS Sysplex. Database Management Proficient in defining and maintaining IMS databases using DBDs and PSBs, controls for segmentation, and executing DL/I utilities. Programming Skills Hands‑on experience developing and maintaining IMS applications in COBOL, writing exits in Assembler, and automating tasks with REXX. System Administration Skills in installing, configuring, and patching IMS regions; managing control blocks; and orchestrating deployments via SMP/E or z/OSMF. SYSGEN and subsystem connectivity management for MQ, CICS and DB2. Also LU6.2 and NJE connectivity. Performance Tuning Ability to monitor IMS transaction and database performance, adjust IMS buffer pools, and optimize logging and threading for SLAs. Troubleshooting Strong analytical skills for diagnosing transaction failures, database lock contention, and communication errors using trace tools and dumps. Backup and Recovery Knowledge of IMS restart strategies (cold, warm, and concurrent restarts) and integration with DFSMShsm for log retention and recovery. Integration Skills Familiarity with linking IMS to CICS, DB2, MQ, web services, and leveraging IMS Connect or GATEWAY for cross‑platform transactions. Documentation and Communication Ability to produce clear runbooks, architecture diagrams, change‑control records, and coordinate with developers, DBAs, and operations teams. Commitment to staying current Commitment to staying current with IBM Redbooks, IMS enhancements, vendor training, and industry best practices. Skills Matrix Designing IMS/TM regions, IMS/DB structure setup Proficiency Level: Advanced Tools / Technologies: IMS/TM, IMS/DB, IMS Connect, GATEWAY Mainframe OS & Utilities Proficiency Level: Advanced Tools / Technologies: z/OS, SMP/E, JES2, JCL, TSO/ISPF, DFSMS Database Management (DBD/PSB design, database utility operations) Proficiency Level: Advanced Tools / Technologies: DL/I, DBDGEN, PSBGEN, IEBGENER, File‑AID, RECON Programming Skills (COBOL, HLASM, REXX, ISPF) Proficiency Level: Intermediate Tools / Technologies: COBOL, HLASM, REXX, ISPF System Administration (Region installs, PTF deployments, SMP/E and z/OSMF use) Proficiency Level: Intermediate Tools / Technologies: Region installs, PTF deployments, SMP/E, z/OSMF Performance Tuning (Buffer tuning, logging optimization, workload balancing) Proficiency Level: Intermediate Tools / Technologies: RMF, SMF, OMEGAMON, IMS Performance Analyzer Troubleshooting (Dump analysis, trace capture, log interpretation) Proficiency Level: Advanced Tools / Technologies: IPCS, SLIP, IMS logs, dump analyzers Backup & Recovery (DFSMShsm, FDR, ABARS) Proficiency Level: Intermediate Tools / Technologies: DFSMShsm, FDR, ABARS Integration Skills (Connecting IMS with middleware and enterprise systems) Proficiency Level: Intermediate Tools / Technologies: IMS Connect, MQSeries, JDBC, web services Documentation & Communication (Tracking product updates, certifications, community) Proficiency Level: Advanced Tools / Technologies: Ongoing (no specific tools listed) Soft Skills Communication Clearly conveys technical concepts and status updates to both technical and non‑technical stakeholders, ensuring alignment and shared understanding. Works effectively with application developers, DBAs, operations teams, and vendors, fostering a team mindset and driving joint problem resolution. Analytical Thinking breaks down complex system behaviors into root causes, leveraging structured reasoning to guide troubleshooting and design decisions. Quickly adjusts to new IMS releases, changing project priorities, and evolving operational challenges without disruption to service delivery. Attention to Detail Meticulously reviews configuration parameters, job streams, and change‑control documentation to prevent errors in highly sensitive production environments. Time Management Prioritizes tasks—such as system maintenance, incident response, and project work—to meet tight SLAs and minimize business impact. Customer Focus Anticipates and responds to the needs of internal customers by delivering reliable IMS services and clear guidance on usage or recovery procedures. Resilience Maintains composure under pressure—during outage scenarios or high‑volume support windows—and works methodically toward resolution. Mentoring & Coaching Shares expertise with junior engineers through peer reviews, knowledge‑transfer sessions, and documentation, strengthening overall team capability. Job Segment Testing, Database, Mainframe, Middleware, Sharepoint, Technology About NTT DATA NTT DATA is a $30 billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long‑term success. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start‑up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure and connectivity. We are one of the leading providers of digital and AI infrastructure in the world. NTT DATA is a part of NTT Group, which invests over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. Visit us at us.nttdata.com Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in‑office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. 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