Position Title - Senior Application Programmer - Mainframe Systems Location: Los Angeles, CA, 90063 (Onsite) Duration: 12+ Months Background ChecksYesPosition DescriptionA Senior Application ...
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Position Title - Senior Application Programmer - Mainframe Systems Location: Los Angeles, CA, 90063 (Onsite) Duration: 12+ Months Background ChecksYesPosition DescriptionA Senior Application ...
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Senior Application Programmer for Mainframe Systems Location: Downey, CA Background Checks: Yes Position Description : * A Senior Application Programmer for Mainframe Systems is responsible for ...
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Senior Application Programmer for Mainframe Systems Location: Downey, CA Background Checks: Yes Position Description : * A Senior Application Programmer for Mainframe Systems is responsible for ...
Job Summary : Confidential company is a staffing and recruiting firm, and they are seeking a Senior Application Programmer - Mainframe Systems to lead and contribute to complex application ...
Job Summary : Confidential company is a staffing and recruiting firm, and they are seeking a Senior Application Programmer - Mainframe Systems to lead and contribute to complex application ...
Mainframe Systems Analyst
Newport Beach, CA · On-site
Experience working with the financial services industry (preferably with mainframe) The Sr. Systems ... Works with Quality Assurance analysts and programmers to analyze data and coordinate problem ...
Mainframe Systems Analyst
Newport Beach, CA · On-site
Experience working with the financial services industry (preferably with mainframe) The Sr. Systems ... Works with Quality Assurance analysts and programmers to analyze data and coordinate problem ...
ADABAS/CICS/IMS Systems Programmer/DBA
Downey, CA · On-site
$56.75 - $72.25/hr
... Mainframe Systems Programmer and/or Database Administrator. • Minimum 3 years of experience in a lead or senior technical role. • Strong experience with enterprise database administration and ...
ADABAS/CICS/IMS Systems Programmer/DBA
Downey, CA · On-site
$56.75 - $72.25/hr
... Mainframe Systems Programmer and/or Database Administrator. • Minimum 3 years of experience in a lead or senior technical role. • Strong experience with enterprise database administration and ...
The Senior Application Programmer for Mainframe Systems is responsible for analyzing and refining systems requirements; translating systems requirements into applications prototypes; planning and ...
The Senior Application Programmer for Mainframe Systems is responsible for analyzing and refining systems requirements; translating systems requirements into applications prototypes; planning and ...
Python Developer
$59.25 - $81.50/hr
THIS WAS CREATED BY AI, REVIEW BEFORE POSTING Senior Software Engineer - Python / PySpark (Mainframe Modernization) Location: San Francisco, CA Duration: 12 months Job ID: 176553 Team Objective * The ...
Python Developer
$59.25 - $81.50/hr
THIS WAS CREATED BY AI, REVIEW BEFORE POSTING Senior Software Engineer - Python / PySpark (Mainframe Modernization) Location: San Francisco, CA Duration: 12 months Job ID: 176553 Team Objective * The ...
Systems Operations Engineer
$61 - $66/hr
Senior Systems Operations Engineer (Mainframe Production Support) We are not accepting C2C or 1099 arrangements. Location: Chandler, AZ (preferred); Des Moines, IA (secondary) Schedule: Flexible 8 ...
Systems Operations Engineer
$61 - $66/hr
Senior Systems Operations Engineer (Mainframe Production Support) We are not accepting C2C or 1099 arrangements. Location: Chandler, AZ (preferred); Des Moines, IA (secondary) Schedule: Flexible 8 ...
Sr. Programmer/Analyst
$48.50 - $65.75/hr
Sr. Programmer/Analyst Sacramento, CA 12+ months Required Skills: Need qualified programmer/analyst ... IBM mainframe utilities (e.g., IDCAMS, IEBGENER, SYNCSORT, FTP, etc.) TSO/ISPF and JCL. Flat file ...
Sr. Programmer/Analyst
$48.50 - $65.75/hr
Sr. Programmer/Analyst Sacramento, CA 12+ months Required Skills: Need qualified programmer/analyst ... IBM mainframe utilities (e.g., IDCAMS, IEBGENER, SYNCSORT, FTP, etc.) TSO/ISPF and JCL. Flat file ...
Senior C#.NET Software Developer West Sacramento, CA 36+ months Mandatory Qualifications: At least ... mainframe legacy systems. At least two (2) years of experience using LINQ and Entity Framework. At ...
Senior C#.NET Software Developer West Sacramento, CA 36+ months Mandatory Qualifications: At least ... mainframe legacy systems. At least two (2) years of experience using LINQ and Entity Framework. At ...
Sr. Programmer/Analyst
Sacramento, CA · On-site
$41.25 - $55.75/hr
Sr. Programmer/Analyst Sacramento, CA 12+ months Required Skills: Need qualified programmer/analyst ... IBM mainframe utilities (e.g., IDCAMS, IEBGENER, SYNCSORT, FTP, etc.) TSO/ISPF and JCL. Flat file ...
Sr. Programmer/Analyst
Sacramento, CA · On-site
$41.25 - $55.75/hr
Sr. Programmer/Analyst Sacramento, CA 12+ months Required Skills: Need qualified programmer/analyst ... IBM mainframe utilities (e.g., IDCAMS, IEBGENER, SYNCSORT, FTP, etc.) TSO/ISPF and JCL. Flat file ...
Software Engineer
San Francisco, CA · Hybrid
$79 - $85/hr
Senior Software Engineer - Python / PySpark (Mainframe Modernization) Location: San Francisco, CA (333 Market St) Work Model: Hybrid - 3 days per week in office (required) Contract Duration: 24-month ...
Software Engineer
San Francisco, CA · Hybrid
$79 - $85/hr
Senior Software Engineer - Python / PySpark (Mainframe Modernization) Location: San Francisco, CA (333 Market St) Work Model: Hybrid - 3 days per week in office (required) Contract Duration: 24-month ...
Senior Software Engineer
Los Angeles, CA · On-site +1
$132K - $174K/yr
Role Overview We're seeking a Senior Software Engineer with deep backend expertise and enterprise ... Lead the modernization of legacy systems (AS400/mainframe) into cloud-native, domain-driven ...
Senior Software Engineer
Los Angeles, CA · On-site +1
$132K - $174K/yr
Role Overview We're seeking a Senior Software Engineer with deep backend expertise and enterprise ... Lead the modernization of legacy systems (AS400/mainframe) into cloud-native, domain-driven ...
Senior Software Engineer
Los Angeles, CA · On-site +1
$132K - $174K/yr
Role Overview We're seeking a Senior Software Engineer with deep backend expertise and enterprise ... Lead the modernization of legacy systems (AS400/mainframe) into cloud-native, domain-driven ...
Senior Software Engineer
Los Angeles, CA · On-site +1
$132K - $174K/yr
Role Overview We're seeking a Senior Software Engineer with deep backend expertise and enterprise ... Lead the modernization of legacy systems (AS400/mainframe) into cloud-native, domain-driven ...
... a CICS mainframe environment - desired CICS COBOL API in a SQL DB environment - Desired VB6 ... Nagesh Sr.Technical Recruiter Integrated Resources, Inc. IT Life Sciences Allied Healthcare CRO ...
... a CICS mainframe environment - desired CICS COBOL API in a SQL DB environment - Desired VB6 ... Nagesh Sr.Technical Recruiter Integrated Resources, Inc. IT Life Sciences Allied Healthcare CRO ...
Senior Natural/ADABAS Administrator
West Sacramento, CA · On-site
$53.25 - $73.25/hr
At least ten (10) years of experience in ADABAS Database Administration support of mainframe (Z/OS ... Bachelor's Degree in an IT-related or Engineering field. Desirable Qualifications: Experience with ...
Senior Natural/ADABAS Administrator
West Sacramento, CA · On-site
$53.25 - $73.25/hr
At least ten (10) years of experience in ADABAS Database Administration support of mainframe (Z/OS ... Bachelor's Degree in an IT-related or Engineering field. Desirable Qualifications: Experience with ...
Mainframes Business Analyst
Torrance, CA · Hybrid
... Senior Business Analyst to serve as a Mainframe Systems SME and assist the Project Manager and/or ... Working knowledge of software engineering, software development, solution architecture.
Mainframes Business Analyst
Torrance, CA · Hybrid
... Senior Business Analyst to serve as a Mainframe Systems SME and assist the Project Manager and/or ... Working knowledge of software engineering, software development, solution architecture.
Senior Test Analyst
West Sacramento, CA · On-site
... mainframe, MS SQL Server, MS Access databases, csv files, text files. At least eight (8) years of ... A Bachelor's Degree in computer science, Computer Engineering, Management Information Systems or ...
Senior Test Analyst
West Sacramento, CA · On-site
... mainframe, MS SQL Server, MS Access databases, csv files, text files. At least eight (8) years of ... A Bachelor's Degree in computer science, Computer Engineering, Management Information Systems or ...
Senior Software Engineer
$137K - $181K/yr
The main function of a Software Engineer is to design, develop, implement, test, and maintain business and computer applications software or specialized utility programs including mainframe and ...
Senior Software Engineer
$137K - $181K/yr
The main function of a Software Engineer is to design, develop, implement, test, and maintain business and computer applications software or specialized utility programs including mainframe and ...
Senior Engineer - LLMOps & MLOps
Los Angeles, CA · On-site +1
$112K - $154K/yr
... Services & Insurance Senior Engineer - LLMOps & MLOps Role Overview This is a high-stakes ... Build the engineering "pipes" to securely ingest and move data from legacy systems (Mainframes, SQL ...
Senior Engineer - LLMOps & MLOps
Los Angeles, CA · On-site +1
$112K - $154K/yr
... Services & Insurance Senior Engineer - LLMOps & MLOps Role Overview This is a high-stakes ... Build the engineering "pipes" to securely ingest and move data from legacy systems (Mainframes, SQL ...
Senior Mainframe Developer information
See California salary details
$37.96 - $40.48
7% of jobs
$40.48 - $43
1% of jobs
$43 - $45.53
0% of jobs
$45.53 - $48.05
8% of jobs
$48.05 - $50.57
0% of jobs
$50.57 - $53.10
6% of jobs
$53.49 is the 25th percentile. Wages below this are outliers.
$53.10 - $55.62
14% of jobs
The median wage is $57.96 / hr.
$55.62 - $58.14
15% of jobs
$58.14 - $60.67
16% of jobs
$61.68 is the 75th percentile. Wages above this are outliers.
$60.67 - $63.19
21% of jobs
$63.19 - $65.71
13% of jobs
$37
$56
$65
How much do senior mainframe developer jobs pay per hour?
As of Jun 10, 2026, the average hourly pay for senior mainframe developer in California is $56.90, according to ZipRecruiter salary data. Most workers in this role earn between $53.37 and $62.16 per hour, depending on experience, location, and employer.
What are the key skills and qualifications needed to thrive as a Senior Mainframe Developer, and why are they important?
To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.
What are some common challenges faced by Senior Mainframe Developers when integrating legacy systems with modern technologies?
Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.
What are Senior Mainframe Developers?
Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.
What are the most commonly searched types of Mainframe Developer jobs in California? The most popular types of Mainframe Developer jobs in California are:
What are popular job titles related to Senior Mainframe Developer jobs in California? For Senior Mainframe Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Senior Mainframe Developer jobs in California look for? The top searched job categories for Senior Mainframe Developer jobs in California are:
What cities in California are hiring for Senior Mainframe Developer jobs? Cities in California with the most Senior Mainframe Developer job openings:
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Job description
HonorVet Technologies. We''re a veteran-owned IT staffing firm, ISO 9001 and ISO 27001 certified, working with federal agencies, state governments, and Fortune 500 enterprise clients across the US. What makes us different isn''t a tagline; it''s the way we work. We don''t forward resumes and hope for the best. We take the time to understand where a professional like you is headed and only reach out when we genuinely believe there''s a fit worth exploring.
Position Title - Senior Application Programmer – Mainframe Systems
Location: Los Angeles, CA, 90063 (Onsite)Â
Duration: 12+ MonthsÂ
Job Description: Background ChecksYesPosition DescriptionA Senior Application Programmer for Mainframe Systems is responsible for leading and/or working on the most complex IT applications design, documentation, development, modification, testing, installation, implementation, and support of new or existing applications software. The Senior Application Programmer for Mainframe Systems is responsible for analyzing and refining systems requirements; translating systems requirements into applications prototypes; planning and designing systems architecture; writing, debugging and maintaining code; determining and designing applications architecture; determining output media/formats; designing user interfaces; working with customers to test applications; assuring software and systems quality and functionality; integrating hardware and software components; writing and maintaining program documentation; evaluating new applications software technologies; and/or ensuring the rigorous application of information security/information assurance policies, principles and practices to the delivery of application software services. Skills RequiredThe Senior Application Programmer for Mainframe Systems will possess knowledge and experience in applications software development principles and methods sufficient to participate in the design, development, testing and implementation of new or modified applications software; organization''s operational environment; software design principles, methods and approaches; principles, methods and procedures for designing, developing, optimizing and integrating new and/or reusable systems components; pertinent government regulations; infrastructure requirements, database management principles and methodologies, including data structures, data modeling, data warehousing and transaction processing; functionality and operability of the current operating environment; systems engineering concepts and factors such as structured design, supportability, reliability, scalability and maintainability; optimization concepts and methods; establish and maintain cooperative working relationships with those contacted in the course of the work; and speak and write effectively and prepare effective reports. Additional Skills RequiredStrong background using IMS, JCL, CICS, and SPUFI via COBOL and DB2. Experience RequiredThis classification must have a minimum of seven (7) years of experience in electronic data processing systems design and programming with one or more of the software set forth below. LANGUAGES: COBOL, Natural/ SuperNatural, IMS/DB/DC, DB2/SQL, Assembler, SAS, CICS; MF FOCUS; TOOLS/UTILITIES: MVS JCL, MVS TSO/ISPF, IBM OPTIM, FILE Manager, SPUFI, ICEMAN/ICETOOLS, SORT, VSAM, CLIST, FTP, DYL260/280, CA Gen (CoolGen), CA Endevor, CA Spool, CA OM Web Viewer, IBM Websphere, Debugger, N2O; DATABASES: DB2, IMS, ADABAS, FOCUS; OS: z/OS; OTHER: EntireX, ASP, HTML, Cloverleaf. Additional Experience RequiredMinimum of five (5) years of experience with IMS/DB2/COBOL/CICS programming in a mainframe environment. Education RequiredThis classification requires the possession of a bachelor''s degree in an IT-related or Computer Science field. Additional qualifying experience may be substituted for the required education on a year-for-year basis. Additional Education Required  Additional InformationThis assignment will require onsite work 5 days (M-F) per week initially and gradually allowing up to 2 days telework depending on the current project requirements. Job site is in located at 12750 Center Court Drive, Suite 500 Cerritos, CA 90703Â
Position Title - Senior Application Programmer – Mainframe Systems
Location: Los Angeles, CA, 90063 (Onsite)Â
Duration: 12+ MonthsÂ
Job Description: Background ChecksYesPosition DescriptionA Senior Application Programmer for Mainframe Systems is responsible for leading and/or working on the most complex IT applications design, documentation, development, modification, testing, installation, implementation, and support of new or existing applications software. The Senior Application Programmer for Mainframe Systems is responsible for analyzing and refining systems requirements; translating systems requirements into applications prototypes; planning and designing systems architecture; writing, debugging and maintaining code; determining and designing applications architecture; determining output media/formats; designing user interfaces; working with customers to test applications; assuring software and systems quality and functionality; integrating hardware and software components; writing and maintaining program documentation; evaluating new applications software technologies; and/or ensuring the rigorous application of information security/information assurance policies, principles and practices to the delivery of application software services. Skills RequiredThe Senior Application Programmer for Mainframe Systems will possess knowledge and experience in applications software development principles and methods sufficient to participate in the design, development, testing and implementation of new or modified applications software; organization''s operational environment; software design principles, methods and approaches; principles, methods and procedures for designing, developing, optimizing and integrating new and/or reusable systems components; pertinent government regulations; infrastructure requirements, database management principles and methodologies, including data structures, data modeling, data warehousing and transaction processing; functionality and operability of the current operating environment; systems engineering concepts and factors such as structured design, supportability, reliability, scalability and maintainability; optimization concepts and methods; establish and maintain cooperative working relationships with those contacted in the course of the work; and speak and write effectively and prepare effective reports. Additional Skills RequiredStrong background using IMS, JCL, CICS, and SPUFI via COBOL and DB2. Experience RequiredThis classification must have a minimum of seven (7) years of experience in electronic data processing systems design and programming with one or more of the software set forth below. LANGUAGES: COBOL, Natural/ SuperNatural, IMS/DB/DC, DB2/SQL, Assembler, SAS, CICS; MF FOCUS; TOOLS/UTILITIES: MVS JCL, MVS TSO/ISPF, IBM OPTIM, FILE Manager, SPUFI, ICEMAN/ICETOOLS, SORT, VSAM, CLIST, FTP, DYL260/280, CA Gen (CoolGen), CA Endevor, CA Spool, CA OM Web Viewer, IBM Websphere, Debugger, N2O; DATABASES: DB2, IMS, ADABAS, FOCUS; OS: z/OS; OTHER: EntireX, ASP, HTML, Cloverleaf. Additional Experience RequiredMinimum of five (5) years of experience with IMS/DB2/COBOL/CICS programming in a mainframe environment. Education RequiredThis classification requires the possession of a bachelor''s degree in an IT-related or Computer Science field. Additional qualifying experience may be substituted for the required education on a year-for-year basis. Additional Education Required  Additional InformationThis assignment will require onsite work 5 days (M-F) per week initially and gradually allowing up to 2 days telework depending on the current project requirements. Job site is in located at 12750 Center Court Drive, Suite 500 Cerritos, CA 90703Â
About HonorVet Technologies
Sourced by ZipRecruiter
HonorVet Technologies, located in Fairfield, NJ, US, is a technology-driven company with a unique dimension - enhancing veteran engagement in the workforce. Founded with the goal of supporting and preserving professional veterans while satisfying the IT and professional needs of businesses, HonorVet Technologies brings a particular focus to diversity and veteran hiring, making it a standout player in the IT and Staffing industries. Functioning as a veteran-driven community entity, the firm offers IT staffing, bespoke development, and consulting services, with the aim of connecting talents with IT-related job opportunities.
Industry
Recruiting and staffing services
Company size
201 - 500 Employees
Headquarters location
Fairfield , NJ, US
Year founded
2015