Systems Programmer/DBA- ADABAS/CICS/IMS

Teknita LLC; Downey (CA); Hybrid; USD 140,000 - 170,000; Full time

Job summary

Teknita LLC in Downey, CA seeks an experienced Mainframe Systems Programmer/DBA to lead and support enterprise database initiatives. Responsibilities include installation, configuration, maintenance, and optimization of IMS, DB2, and ADABAS across z/OS environments.

The ideal candidate has seven+ years in mainframe DBAs, strong skills in JCL, CICS, security (ACF2), and backup/recovery, plus leadership experience and excellent documentation.

Qualifications

• Minimum seven (7) years of experience as a Systems Programmer/DBA in a mainframe environment.
• At least three (3) years in a lead or senior technical role.
• Experience supporting enterprise legacy systems and mission-critical database environments.

Responsibilities

• Lead and support database upgrade, installation, configuration, testing, implementation, and maintenance projects.
• Manage mainframe database environments including IMS, DB2, and ADABAS.
• Plan and execute upgrades and enhancements per standards and requirements.
• Monitor database health, performance, capacity, and availability across production environments.
• Provide technical consulting to development and operations teams.
• Develop designs for database structures, storage, replication, backup, and recovery.
• Maintain documentation of architecture, procedures, and configurations.

Skills

Mainframe DBA

z/OS

DB2

IMS

ADABAS

CICS

JCL

COBOL

REXX

ACF2

SMP/E

backup/recovery

performance tuning

Education

Bachelor’s degree

Tools

NATURAL

N2O

TRIM

CA Spool

BMC Tools

Job description

Job ID# 10TEK0869-052226 – Posted 05/22/2026 – Downey, CA

Key Responsibilities

We are seeking an experienced Mainframe Systems Programmer/DBA to lead and support complex database system initiatives for legacy enterprise environments. This role is responsible for the installation, configuration, maintenance, enhancement, testing, and implementation of core database and system software products supporting enterprise database architecture and business operations. The ideal candidate will possess strong expertise in mainframe database administration, systems programming, performance tuning, and legacy platform support within large-scale enterprise environments.

• Lead and/or support complex database upgrade, installation, configuration, testing, implementation, and maintenance projects.
• Manage and maintain mainframe database environments including hierarchical, relational, and file-based database systems such as IMS, DB2, and ADABAS.
• Plan and execute database upgrades and enhancements in alignment with organizational standards and operational requirements.
• Monitor and verify database health, performance, capacity, and availability across production environments.
• Provide technical consulting and support to application development and operations teams for project planning and implementation activities.
• Perform technical reviews and evaluations of systems utilizing ADABAS, DB2, and IMS database management systems.
• Develop logical and physical database designs, including database structures, storage allocation, partitioning, compression, replication, backup, and recovery strategies.
• Conduct database reorganizations, performance tuning, and space management activities to ensure optimal system performance.
• Evaluate new database management tools and software products and recommend improvements to existing environments.
• Support database security, integrity, and disaster recovery processes.
• Maintain technical documentation related to database architecture, procedures, and system configurations.

Required Skills:

• Strong expertise with IBM mainframe technologies and database environments.
• Hands-on experience with IBM z/OS, IMS, DB2, ADABAS, SMP/E, JCL, IMS DB/DC, and CICS.
• Experience with ACF2 security administration and tools such as IBM File Manager, DELTA/IMS, NATURAL/SUPERNAT, ENTIREX, CA SPOOL, IMS & DB2 BMC Tools, and N20/TRIM.
• Knowledge of ASSEMBLER, COBOL, and REXX scripting/programming.
• Strong understanding of database administration concepts including backup/recovery, performance monitoring, capacity planning, replication, compression, and partitioning.
• Ability to troubleshoot and resolve complex database and systems-related issues.
• Strong analytical, communication, and documentation skills.

Additional Skills Required

• IMS DB/DC
• CICS
• ADABAS
• NATURAL
• N2O
• TRIM
• NATSECURITY

Experience Requirements

• Minimum seven (7) years of experience as a Systems Programmer/DBA in a mainframe environment.
• At least three (3) years of experience in a lead or senior technical role.
• Proven experience supporting enterprise legacy systems and mission-critical database environments.

Education:

Bachelor’s degree in Information Technology, Computer Science, Engineering, or a related technical field.

Additional Information:

• This position follows a hybrid work schedule. The selected candidate will be required to work on-site two (2) days per week.
• Please note: this is a Systems Programmer/DBA position focused on mainframe infrastructure and database administration. Mainframe application developer profiles will not be considered for this role.