> Markdown version of [/jobs/ext/4571767-sr-mainframe-database-systems-engineer](https://www.wearedevelopers.com/jobs/ext/4571767-sr-mainframe-database-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Mainframe Database Systems Engineer - **Company:** Ssv Technologies Inc - **Location:** East Hartford, CT, United States - **Experience:** Expert - **Contract:** Contract - **Skills:** Databases, System Configuration, Data Sharing, IBM DB2, DB2 SQL, IBM Parallel Sysplex, Job Control Language (JCL), Rexx (Programming Language), Mainframes, Performance Tuning, IBM Resource Access Control Facility, Broadcom, Subsystems, System Programming, Z/OS, Data Logging, Tso/ispf, Information Technology - **Published:** November 4, 2026 - **Apply:** https://www.dice.com/job-detail/3e80b84d-7ed3-4b88-a155-5793a67c1914 ## About the Role What is a Must Have? * Bachelor's degree in computer science, related STEM field, or its equivalent in work experience * 8 or more years of hands-on Db2 for z/OS systems programming experience, including installation, maintenance and version migration. * Strong working knowledge of SMP/E, z/OS, JCL, TSO/ISPF, SDSF/IOF and REXX. * Demonstrated experience with subsystem-level problem determination and recovery, including working cases with IBM support. * Experience configuring and tuning Db2 subsystems: DSNZPARMs, buffer pools, logging and memory. * Working knowledge of RACF as it applies to Db2 and IMS. * Willingness to work weekends, overnights and holidays on occassion for maintenance windows and production issues. * Willingness to provide occassional advanced support to those participating in an on-call rotation. What Will Our Ideal Candidate Have? * Technical Expertise & Education: * IMS systems programming experience: DB/DC, DBRC, HALDB, managed ACBs and the IMS catalog. * Db2 data sharing, Parallel Sysplex and coupling facility experience. * Experience with BMC AMI and Broadcom (CA) tools such as File Master, and IBM tools such as Db2 SQL Tuning Services and QMF. * Experience with Informatica PowerExchange listeners on z/OS. * Experience with Db2 LUW and distributed Db2 connectivity. * 3 or more years as a technical lead, ideally including oversight of vendor or managed service teams. * Experience planning and running DR exercises for Db2 and IMS. * IBM Db2 for z/OS certification.