Application DBA - Mainframe Modernization

Position: Application DBA - Mainframe Modernization
Location: REMOTE
Duration: 12+ Months Contract

on W2

Application DBA – Mainframe Modernization (DB2 z/OS, Datacom/DB, VSAM, Data Migration)

Role Overview

We are seeking a hands-on Application DBA to support a mainframe modernization initiative involving legacy data structures and both relational and network-style/mainframe database technologies (IBM Db2 for z/OS and Datacom/DB). This role emphasizes data extraction, transformation, performance tuning, and schema/data model evolution rather than traditional DBA administration.

The candidate will collaborate closely with application developers and modernization teams to enable efficient data migration and optimize database interactions.

Key Responsibilities

• Analyze and interpret legacy data structures including VSAM files, Db2 z/OS, and Datacom/DB objects.
• Design and optimize data models/schemas aligned with modern application requirements.
• Develop and tune SQL queries (Db2) and support Datacom access patterns for scalability and performance.
• Identify and resolve inefficient data access patterns (e.g., full table scans, poor indexing strategies).
• Partner with modernization teams to ensure smooth data extraction, migration, and integration.

Required Skills & Experience

• Strong expertise in Db2 for z/OS, Datacom/DB, and VSAM.
• Proven experience in data migration, schema evolution, and performance tuning.
• Hands-on SQL development and optimization skills.
• Familiarity with mainframe modernization initiatives and hybrid cloud integration.
• Excellent problem-solving and collaboration skills.

Preferred Qualifications

• Experience with data migration tools and ETL frameworks.
• Exposure to cloud-native environments (AWS, Azure, Google Cloud Platform).
• Knowledge of enterprise modernization strategies and governance.