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Mainframe Administration Jobs in California (NOW HIRING)

DXC Technology

Mainframe/ITOM

Los Angeles, CA

$115K - $213K/yr

... platform administration and configuration Experience with report scheduling, output formatting, and automated distribution pipelines Familiarity with ITSM ticket management workflows and change ...

VIRTUAL CLARITY LIMITED

Mainframe/ITOM

Los Angeles, CA · On-site

$115K - $213K/yr

... platform administration and configuration Experience with report scheduling, output formatting, and automated distribution pipelines Familiarity with ITSM ticket management workflows and change ...

US Bank

z/OS Systems Engineer

Cupertino, CA · On-site

Hands-on experience supporting critical mainframe subsystems including CICS, IMS, JES2, IBM MQ, and Db2 for z/OS . * Advanced knowledge of RACF security administration , access controls, and ...

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Mainframe Administration information

What is mainframe administration?

Mainframe Administration involves managing and maintaining mainframe computer systems, which are powerful servers used by large organizations for critical applications and bulk data processing. Mainframe Administrators are responsible for installing, configuring, monitoring, and securing mainframe hardware and software. They ensure system performance, troubleshoot technical issues, handle backup and recovery, and apply updates or patches to keep systems running smoothly and securely. This role often requires strong technical skills, attention to detail, and the ability to work with legacy systems.

What are the key skills and qualifications needed to thrive as a mainframe administrator, and why are they important?

To thrive as a Mainframe Administrator, you need a solid understanding of mainframe operating systems (such as z/OS), system configuration, and troubleshooting, typically supported by a degree in computer science or related IT experience. Familiarity with tools like IBM System Automation, JCL, RACF, and monitoring solutions, as well as certifications such as IBM Certified System Administrator, is highly valued. Strong analytical thinking, attention to detail, and effective communication skills help administrators efficiently resolve issues and collaborate with IT teams. These skills and qualifications are essential to ensure the reliability, security, and optimal performance of critical enterprise computing environments.

What are some common challenges faced by mainframe administrators and how can they be addressed?

Mainframe Administrators often encounter challenges such as managing legacy systems, ensuring system uptime, and balancing security with accessibility. Keeping up with evolving technologies and integrating mainframes with modern applications can require continuous learning and adaptation. Effective communication with development and operations teams is vital to ensure seamless updates and minimize downtime. Proactively monitoring system performance and applying best practices for disaster recovery can also help mitigate risks and maintain reliability.

What is the difference between Mainframe Administration vs Mainframe Support?

AspectMainframe AdministrationMainframe Support
CertificationsIBM Certified System Administrator, z/OS certificationsSimilar certifications, often including z/OS support certifications
Work EnvironmentData centers, enterprise IT departments managing mainframe systemsHelp desks, support teams assisting users and troubleshooting issues
ResponsibilitiesSystem setup, configuration, maintenance, performance tuningIssue resolution, user support, incident management
Industry UsageFinancial institutions, government agencies, large corporationsSame industries, focusing on user support and problem resolution

Mainframe Administration involves managing and maintaining mainframe systems, ensuring optimal performance and security. Mainframe Support focuses on assisting users, troubleshooting issues, and resolving incidents. Both roles require similar certifications and are vital in industries relying on mainframe technology, but they differ in daily responsibilities and focus areas.

Is it hard to become a mainframe administrator?

Becoming a mainframe administrator requires a strong understanding of mainframe systems like IBM z/OS, proficiency in scripting and automation, and often a relevant certification. The role can be technically challenging due to the complexity of mainframe environments, but with proper training and experience, it is achievable for those with a background in IT or computer science.

Is mainframe administration a good career option?

Mainframe administration is a stable and well-paying career that involves managing large-scale computer systems used by many organizations. It requires knowledge of mainframe operating systems like z/OS, skills in system maintenance, and often certifications such as IBM Certified System Administrator. The role offers opportunities for specialization and long-term job security due to the continued reliance on mainframes in industries like finance and government.

What does a mainframe administrator do?

A mainframe administrator manages and maintains large-scale computer systems known as mainframes, ensuring their security, performance, and availability. They configure hardware and software, monitor system operations, troubleshoot issues, and implement updates, often using tools like z/OS and requiring knowledge of system security and backup procedures.

What are popular job titles related to Mainframe Administration jobs in California?

For Mainframe Administration jobs in California, the most frequently searched job titles are:

What job categories do people searching Mainframe Administration jobs in California look for?

The top searched job categories for Mainframe Administration jobs in California are:

What cities in California are hiring for Mainframe Administration jobs?

Cities in California with the most Mainframe Administration job openings:

Mainframe Administration jobs near you
Infographic showing various Mainframe Administration job openings in California as of August 2026, with employment types broken down into 1% As Needed, 89% Full Time, 8% Part Time, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Sr Mainframe Systems Programmer/DBA / Downey, CA, (Onsite),12+ Months Contract

Suncap Technology

Downey, CA • On-site

Full-time

Re-posted 14 days ago

Job description

Job Summary:
Suncap Technology is seeking a Senior Mainframe Systems Programmer/DBA to lead complex database upgrade projects and manage core database products. The role involves planning, installing, and maintaining database environments to support the County's database architecture.
Responsibilities:
• A Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and enhancements of new or existing system software products.
• This classification must plan, install, configure, test, implement and manage core database products, software products in support of the County's database architecture and business needs.
• The Mainframe Systems Programmer/DBA for Legacy Systems manages different types of databases, such as hierarchical (IMS), relational (DB2), and file-based (ADABAS), and is responsible for planning and upgrading the database environments on a County-established basis; verifying the health of all the databases;
• database administration technical consulting for application and operations teams for the purpose of project planning/development;
• maintenance on production database systems; performance of technical reviews for existing systems that utilize one of the following database management systems (DBMS): ADABAS, DB2 or IMS; performance of evaluations for the purposes of selecting new or fine-tuning existing DBMS software; consultation with project development teams to provide recommendations on database design;
• development of logical and physical database designs; creation of overviews of logical database designs; creation of physical databases;
• database capacity planning; development and use of backup and recovery procedures for databases; database performance monitoring;
• database space monitoring; database reorganizations; database replication; database compression and database partitioning.
Qualifications:
Required:
• A minimum of seven (7) years of experience as a Systems Programming/ DBA
• At least three (3) years of that experience in a lead role
• Possession of a bachelor's degree in an IT-related or engineering field
• The Mainframe Systems Programmer/DBA for Legacy Systems manages different types of databases, such as hierarchical (IMS), relational (DB2), and file-based (ADABAS)
• Responsible for planning and upgrading the database environments on a County-established basis
• Verifying the health of all the databases
• Database administration technical consulting for application and operations teams for the purpose of project planning/development
• Maintenance on production database systems
• Performance of technical reviews for existing systems that utilize one of the following database management systems (DBMS): ADABAS, DB2 or IMS
• Performance of evaluations for the purposes of selecting new or fine-tuning existing DBMS software
• Consultation with project development teams to provide recommendations on database design
• Development of logical and physical database designs
• Creation of overviews of logical database designs
• Creation of physical databases
• Database capacity planning
• Development and use of backup and recovery procedures for databases
• Database performance monitoring
• Database space monitoring
• Database reorganizations
• Database replication
• Database compression
• Database partitioning
• The following technology skill sets are required to perform in this classification: IBM: Z/OS, IMS, DB2, ADABAS, SMP/E, JCL, IMS DB/DC, CICS, ACF2, ASSEMBLER/COBOL/REXX, IBM FILE MANAGER, DELTA/IMS, NATURAL/ SUPERNAT, ENTIREX, CA SPOOL, IMS & DB2 BMC Tools, N20/TRIM
Preferred:
• DB2, ADABAS and MQ Systems programming skills
• Mainframe DBA Skills
• SMP/E
• 7 Years of Experience in ADABAS/NATURAL systems programming
• 12 Years of Experience in DB2 Systems programming
• 5 Years of experience in ADABAS/DB2/MQ Database Administration
• 5 Years of experience in BMC DB2 Admin tools
Company:
Suncap Technology is a staffing firm that provides recruiting and financial staffing services. Founded in , the company is headquartered in Davie, USA, with a team of 51-200 employees. The company is currently Growth Stage.
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About Suncap Technology Executive and Financial Staffing

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Suncap Technology Executive and Financial Staffing is a unique staffing firm specializing in creating custom-matched connections between professionals and companies in temporary, contract-to-hire, direct hire and retained positions. We provide staffing & industry-specific solutions for hiring with confidence.

Industry

Recruiting and staffing services

Company size

51 - 200 Employees

Headquarters location

Davie, FL, US

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