DMS 2200 Database Administrator / DBA - Unisys OS Clearpath 2200 - Remote

Company Description

Arthur Grand is an IT services firm specializing in Digital Transformation initiatives for Federal, Commercial, State & local customers. Since 2012, Arthur Grand has been successfully supporting and delivering IT services to our customers in the areas of enterprise modernization and transformation with a core focus on emerging technologies including Cloud Solutions (AWS, Azure), Agile Development, Custom Programming, Full Stack Development, DevOps, DevSecOps, CI/CD, Web Development, Mobile APP Development, Data Visualization, Data Warehousing, Financial/ERP System Implementation and Infrastructure Management. Arthur Grand’s culture of delivery excellence, combined with a commitment to bring the best talent to provide services, has earned our company an unparalleled reputation for delivering transformative results.

Job Description

Arthur Grand Technologies is currently seeking a highly motivated and skilled DMS 2200 Database Administrator (DBA) – Full Time – Remote for one of our clients.

Position: DMS 2200 Database Administrator (DBA)

Location: Remote

Full Time

Environment: UNISYS ClearPath 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 ClearPath 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, PostgreSQL, etc.).

· Knowledge of ETL processes and data mapping between hierarchical and relational structures.

· Background in high-availability, mission-critical opera