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Mainframe Openings Jobs in California (NOW HIRING)

Broadcom

Mainframe QA Engineer

San Jose, CA · On-site

Desired Technical Skills & Experience o Experience with performance monitoring and tools. o Additional experience in one or more mainframe and open systems languages. o Experience with virtualization ...

Broadcom

R&D Software Engineer

San Jose, CA · On-site

Open to learning new technologies and languages, following new trends, and continuous innovation. Desired Mainframe Technical Skills & Experience * Experience with SQL on mainframe databases like ...

Broadcom

R&D Software Engineer

San Jose, CA

Open to learning new technologies and languages, following new trends, and continuous innovation. Desired Mainframe Technical Skills & Experience * Experience with SQL on mainframe databases like ...

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Mainframe Openings information

What are some common challenges faced by professionals working in mainframe roles, and how can they be addressed?

Professionals in mainframe roles often encounter challenges such as adapting to legacy codebases, integrating mainframe systems with modern technologies, and managing the scarcity of experienced mainframe talent. Staying current with evolving mainframe tools and languages like COBOL, JCL, and DB2 is crucial. To address these challenges, many teams invest in ongoing training, collaborative code reviews, and cross-functional projects with distributed systems teams, which help bridge the gap between traditional mainframes and newer IT environments.

What is the difference between Mainframe Openings vs Mainframe Developer?

AspectMainframe OpeningsMainframe Developer
Required CredentialsTypically requires certifications like IBM Certified SpecialistRequires similar certifications and programming skills
Work EnvironmentJob listings for various roles in mainframe environmentsHands-on coding and development in mainframe systems
Employer & Industry UsageUsed by companies seeking mainframe talentEmployers hiring for mainframe development positions
Search & Comparison IntentLooking for job openings in mainframe rolesSearching for development-specific mainframe jobs

Mainframe Openings refer to a variety of job listings in the mainframe industry, including roles like developers, analysts, and administrators. Mainframe Developer positions are specifically focused on coding and developing mainframe applications. Both involve working in mainframe environments and often require similar certifications, but Mainframe Openings encompass a broader range of roles beyond just development.

What are mainframe openings?

Mainframe openings refer to job vacancies or employment opportunities that require expertise in mainframe computing systems. These jobs typically involve working with large-scale servers and legacy systems used by banks, insurance companies, and other large organizations to process high volumes of transactions. Common roles include mainframe developer, system programmer, and mainframe administrator. Candidates are often expected to have skills in COBOL, JCL, DB2, and other mainframe technologies. Mainframe professionals are in demand because many critical business operations still rely on these robust and secure systems.

What are the key skills and qualifications needed to thrive in mainframe roles?

To thrive in Mainframe roles, you typically need a solid background in computer science or IT, with expertise in mainframe operating systems (such as z/OS) and programming languages like COBOL, JCL, or PL/I. Familiarity with mainframe tools like IBM DB2, CICS, and version control systems, as well as relevant certifications (e.g., IBM Certified System Programmer), is highly beneficial. Strong analytical thinking, problem-solving skills, and the ability to communicate technical information clearly help professionals excel and collaborate within teams. These skills ensure reliable maintenance, development, and modernization of critical enterprise systems that many organizations depend on.
What are popular job titles related to Mainframe Openings jobs in California? For Mainframe Openings jobs in California, the most frequently searched job titles are:
What job categories do people searching Mainframe Openings jobs in California look for? The top searched job categories for Mainframe Openings jobs in California are:
What cities in California are hiring for Mainframe Openings jobs? Cities in California with the most Mainframe Openings job openings:
Mainframe Openings jobs near you
Infographic showing various Mainframe Openings job openings in California as of August 2026, with employment types broken down into 2% Internship, 62% Full Time, 28% Part Time, 2% Temporary, and 6% Contract. Highlights an 96% Physical, 1% Hybrid, and 3% Remote job distribution.

Mainframe Admin

West Advanced Technologies (WATI)

Downey, CA • On-site

Full-time

Re-posted 8 days ago

Job description

Mainframe Admin
Downey, CA
12 months
Responsibilities:
Provide network architecture guidance and improvements for the design of the new z/OS 2.4 zEnterprise Communications Server infrastructure.
Design, implement and support the Communications Systems Services (CSSMTP) customization for mainframe files attachment.
Design, implement, and support communications access to the Client's cloud tertiary data site.
Enhance Williams Data Systems (WDS) enterprise monitoring/alerts.
Participate in Business Continuity exercises including testing, documentation and configuration of the z/Enterprise Communications Server environment at the Local Recovery Center.
Attend Problem and Change meetings in order to support Network Systems activities in these areas as well as resolve open Cherwell help desk incidents assigned to the IBM OS/COM Section.
Provide on-call technical support as required during outages including weekends and off hours.
Plan and schedule network software changes as required to be implemented according to Client's change policies and available maintenance windows.
Provide for knowledge transfer throughout the contract period to permanent IBM OS/COM staff.
Attend related project and design meetings and discussions directed by management; and perform special projects and initiatives as assigned.
Required Skills:
1. Five (5) years of experience within the last seven (7) years with IBM zEnterprise mainframe implementing MultiPath Channel (MPC) alternate routing links in a systems programming troubleshooting support role.
2. Five (5) years of experience within the last seven (7) years with IBM zEnterprise mainframe hardware maintenance console interface in a systems programming troubleshooting support role.
3. Five (5) years of experience within the last seven (7) years customizing the IBM zEnterprise mainframe Communications Systems Services (CSSMTP) for mainframe file attachment.
4. Three (3) years of experience within the last five (5) years installing, maintaining and upgrading the zEnterprise Communications Server mainframe TLS/SSL security, policy-based network and Digital Certificate Implementation and support.
5. Three (3) years of experience within the last five (5) years supporting IBM zEnterprise mainframe Communications Systems and Virtual Tape System storage disaster vaulting communication links.
Regards
Naresh Damagalla
West Advanced Technologies, Inc
E: naresh.d@wati.com

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