DMS Database Administrator DBA Unisys OS Clearpath 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, Dev Ops, Dev Sec Ops , 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.

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 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.

• 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.

• 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.

• 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.

• 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.

• 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.
• 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.

• 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.

• Experience supporting modernization or migration projects from DMS 2200 to relational databases (Oracle, SQL Server, Postgre
  
  SQL, etc.).
• Knowledge of…