DBA MainframeUnisys

Position: DBA MainframeUnisys 2200

Job Description

Position: DMS 2200 Database Administrator (DBA)-DBA
-Mainframe-Unisys
-2200

Location:
Remote

Full Time

Clearance:
Active MBI Clearance

Environment: UNISYS Clear Path OS 2200 mainframe
Database Type: DMS 2200 (Network/Hierarchical Database)

Position Summary

The DMS 2200 Database Administrator is responsible for the administration, maintenance, performance tuning, and operational support of the DMS 2200 network database system operating on a UNISYS OS 2200 mainframe. This role supports mission‑critical legacy applications, ensures data integrity and reliability, and collaborates closely with system administrators, developers, and operations teams.

Key Responsibilities
Database Administration & Maintenance

• Install, configure, and maintain DMS 2200 database structures, schemas, subschemas, and sets.
• Manage hierarchical and network database relationships, record types, and access paths.
• Perform routine database health checks, reorganization, cleanup, and optimization.
• Maintain journaling, recovery, and backup processes to ensure data integrity and system stability.

Performance Monitoring & Optimization

• Monitor database performance, identify bottlenecks, and implement tuning strategies to enhance throughput and efficiency.
• Optimize buffering, indexing, and access methods for batch and online workloads.
• Work with application teams to refine data access logic for improved performance.

Security & Compliance

• Administer user access rights, permissions, and database‑level security functions.
• Ensure compliance with organizational and federal data protection standards.
• Monitor and audit database activity for security and operational consistency.

Support for Application Development

• Provide technical guidance to developers working in COBOL, ALGOL, FORTRAN, or other OS 2200‑supported languages.
• Assist in designing efficient subschemas and data calls for transactional and batch applications.
• Troubleshoot database‑related issues in production, test, and development environments.

Data Migration & Modernization (as applicable)

• Support data conversion efforts from DMS 2200 to relational or cloud databases when modernization projects are initiated.
• Map hierarchical/network structures to relational schemas.
• Assist with ETL extraction, transformation, and integration workflows.

System Collaboration

• Work closely with OS 2200 system administrators to coordinate updates, performance tuning, and operational scheduling.
• Participate in change control processes and maintain documentation for database configurations and procedures.

Required Qualifications

• 5+ years of experience administering DMS 2200 or similar hierarchical/network database systems.
• Hands‑on experience with UNISYS Clear Path OS 2200 mainframe environments.
• Strong understanding of DMS 2200 indexing, sets, subschemas, record locking, journaling, and recovery.
• Familiarity with COBOL and other legacy languages commonly used on OS 2200.
• Experience with performance analysis, debugging, and system tuning on mainframe platforms.
• Ability to troubleshoot complex database issues in production environments.

Preferred Qualifications

• Experience supporting modernization or migration projects from DMS 2200 to relational databases (Oracle, SQL Server, Postgre
  
  SQL, etc.).
• Knowledge of ETL processes and data mapping between hierarchical and relational structures.
• Background in high‑availability, mission‑critical operational systems in government or regulated environments.
• Strong documentation, communication, and coordination skills.

Soft Skills

• Analytical problem‑solving and attention to detail.
• Ability to work independently and in cross‑functional teams.
• Strong communication with both technical and non‑technical stakeholders.
• Adaptability to legacy environments and modernization challenges.

Arthur Grand Technologies is an Equal Opportunity Employer (including disability/vets)

All your information will be kept confidential according to EEO guidelines.

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