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# Legacy Support Engineer

- **Company:** The Newberry Group, Inc.
- **Location:** Saint Charles, MO, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Legacy Database, Batch Processing, Information Systems, Databases, System Configuration, IBM DB2, Job Control Language (JCL), Job Scheduling, Mainframes, Performance Tuning, SQL Databases, Z/OS, Information Technology, Legacy Systems, Control M
- **Published:** August 20, 2026
- **Apply:** https://www.careerjet.com/jobad/us0faf90af7a931a1001342382cc411379

## About the Role

* 7+ years supporting legacy/mainframe systems in production environments.
 * Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field.
 * Strong analytical, troubleshooting, and communication skills.
 * Ability to work remotely with distributed teams and manage tasks independently.
 * Strong mainframe background, including support, troubleshooting, and performance tuning.
 * Mainframe Database Administrator experience with IDMS (DL/I-style databases, schema/subschema), including maintenance, upgrades/patching, backup/recovery, performance tuning, and resolving incidents
 * Working knowledge of Db2 z/OS, SQL, and database administration fundamentals within mainframe environments.
 * Experience supporting traditional batch systems, JCL, and production operations.
 * Occasional off-hours support may be required for production emergencies or planned maintenance.

Preferred Qualifications and Skills

 * Familiarity with Control-M workload automation (job scheduling, calendar setup, monitoring, and troubleshooting).
 * Experience with modernization initiatives or migrations of legacy platforms.
 * Exposure to federal or enterprise environments with mature change-control processes.

## Description

Newberry Groups seeks an experienced Legacy Support Engineer with strong mainframe IDMS and Db2 z/OS DBA expertise to maintain, support, and enhance enterprise legacy database systems. This position focuses on the stability, performance, and modernization support of high-visibility production environments within our Public Sector client.
Location
This is a full-time telecommuting role. The applicant must reside in the United States and be eligible to obtain a Public Trust clearance.
Responsibilities and Duties

 * Provide daily operational support for legacy mainframe applications and associated databases.
 * Diagnose, troubleshoot, and resolve issues across legacy platforms, ensuring minimal downtime.
 * Analyze system performance, identify tuning opportunities, and execute optimization tasks.
 * Support batch processing operations, job scheduling, and production workflows.
 * Collaborate with cross-functional teams to implement enhancements, patches, and updates.
 * Participate in incident management, root-cause analysis, and long-term remediation planning.
 * Assist with maintenance windows, release cycles, and environment migrations as needed.
 * Document processes, technical changes, and system configurations to support knowledge continuity.


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