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Mainframe Assembler Jobs (NOW HIRING)

Staffingine LLC

Mainframe Architect

Erlanger, KY · On-site

Develop maintain and enhance Mainframe based applications and systems using languages like COBOL PLI Assembler or REXX * Manage Mainframe databases such as DB2 IMS DB or IDMS ensuring data integrity ...

WATI

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

Mainframe Operator Location: Downey, CA Duration: 12 months Description: The Information Technology ... IBM, Z/OS, CICS, NATURAL/SUPERNAT, IMS, DB2, ADABAS, ACF2, ENTIREX, SMP/E, ASSEMBLER/COBOL/REXX, CA ...

Accenture

Mainframe Specialist

Seattle, WA · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Cleveland, OH · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Houston, TX

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

West Advanced Technologies (WATI)

Mainframe Operator

Downey, CA · On-site

$50.75 - $65/hr

Mainframe Operator Location: Downey, CA Duration: 12 months Description: The Information Technology ... IBM, Z/OS, CICS, NATURAL/SUPERNAT, IMS, DB2, ADABAS, ACF2, ENTIREX, SMP/E, ASSEMBLER/COBOL/REXX, CA ...

Accenture

Mainframe Specialist

Herndon, VA · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Chicago, IL

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Austin, TX · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Morristown, TN · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Kirkland, WA

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Carmel, NY · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

Minneapolis, MN · On-site

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

Accenture

Mainframe Specialist

San Francisco, CA

$70K - $196K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

COBOL, JCL, VSAM, CICS, DB2, Assembler, REXX, SPUFI, TSO/ISPF, or RACF. * Minimum 3+ years leading or executing mainframe modernization initiatives with a demonstrable track record of delivery.

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Mainframe Assembler information

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$10

$53

$72

How much do mainframe assembler jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for mainframe assembler in the United States is $53.38, according to ZipRecruiter salary data. Most workers in this role earn between $47.12 and $60.58 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a mainframe assembler?

To thrive as a Mainframe Assembler, you need a strong background in assembly language programming, mainframe operations, and a solid understanding of systems architecture—often backed by a degree in computer science or related field. Experience with IBM z/OS, JCL (Job Control Language), and tools such as ISPF, along with certifications like IBM Certified System Programmer, is highly beneficial. Attention to detail, problem-solving abilities, and effective communication skills help distinguish top performers in this position. These skills are crucial to ensure accurate and efficient program development, system stability, and smooth collaboration within complex mainframe environments.

What are the typical daily responsibilities of a mainframe assembler?

Mainframe Assemblers are typically responsible for writing, testing, and maintaining assembler language programs that run on enterprise mainframe systems. Their day-to-day tasks often include analyzing system requirements, coding program logic, debugging complex routines, and optimizing performance for high-volume processing. They frequently collaborate with systems analysts, application developers, and operations teams to ensure seamless integration and reliability of mainframe applications. Staying current with system updates and responding quickly to troubleshooting requests is also an important part of the job.

What is a mainframe assembler?

A Mainframe Assembler job involves programming in assembly language on IBM mainframe systems. Assemblers write low-level code to optimize system performance, handle critical processes, and interact with hardware directly. These professionals work with legacy systems, maintaining and enhancing core applications used in industries like banking, insurance, and government. Strong knowledge of IBM z/OS, JCL, and debugging tools is essential.

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Mainframe Assembler jobs near you
Infographic showing various Mainframe Assembler job openings in the United States as of August 2026, with employment types broken down into 80% Full Time, 9% Part Time, 1% Temporary, 6% Contract, and 4% Nights. Highlights an 100% Physical job distribution, with an average salary of $111,026 per year, or $53.4 per hour.

Mainframe Systems Programmer/Mainframe DBA

West Advanced Technologies (WATI)

Downey, CA • On-site

$56.25 - $71.75/hr

Full-time

Re-posted 14 days ago

Job description

Mainframe Systems Programmer/Mainframe Database Administrator (DBA)
Downey, CA
12+ months
Required Skills:
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. 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.
This classification must have a minimum of seven (7) years of experience as a Systems Programming/ DBA, with at least three (3) years of that experience in a lead role.
This classification requires the possession of a bachelor's degree in an IT-related or engineering field.
Desired Skills:
Z/OS 2.4,HCD/IODEF , Z13S,Z15,SMP/E, ASSEMBLER, JCL, COBOL,ACF2,SYSPLEX coupling facility,, HMC (Processor Interface), OSA (Networking Interface), ICC (Integrated Console Controller), FICON (Fiber connectivity to peripheral devices),z/OS Open System and Unix Systems Services (USS) on the Mainframe. ,CLIST, REXX,, FICON switch configuration and definition in HCD, Server Time Protocol (STP) configuration.
15 Years of experience with Z/OS operating system upgrade, 10 Years of experience with Mainframe hardware upgrade projects. 6 Years of experience with HCD & HMC. 4 Years of experience with DB2 or IMS or IBM Tools installation. 2 Years of Experience with mainframe storage.
Additional Information: This is not Mainframe application developer role. This is strictly Z/OS System programmer role.
Regards
Sunil Damagalla
West Advanced Technologies, Inc
E: sunil.d@wati.com D: 279-666-5837

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