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Entry Level Mainframe Assembler Programmer Jobs (NOW HIRING)

Mainframe Assembler

Wilmington, DE · On-site

$60 - $65/hr

They must keep themselves updated with the latest mainframe technologies and assembler programming techniques to ensure the continuous functionality and reliability of mainframe systems.

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Mainframe Technician

Anderson, SC · On-site

$44.75 - $57.75/hr

REQUIRED SKILLS (RANK IN ORDER OF IMPORTANCE): ENTRY LEVEL MAINFRAME EXPERIENCE, BASIC PC SKILLS, MS OFFICE; SOFT SKILLS REQUIRED: EFFECTIVE COMMUNICATION SKILLS (WRITTEN AND ORAL), CUSTOMER FOCUSED ...

Proficiency in COBOL, JCL, and Assembler programming languages for mainframe application development and sustainment. * Experience with mainframe database administration, including database structure ...

COBOL Programmer

Leesburg, VA · Remote

$86K - $97K/yr

Experience maintaining and enhancing applications using COBOL, MANTIS, JCL, and Assembler programming languages. * Familiarity with mainframe utilities and applications such as File Master, Test-rite ...

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Entry Level Mainframe Assembler Programmer information

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How much do entry level mainframe assembler programmer jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for entry level mainframe assembler programmer in the United States is $54.11, according to ZipRecruiter salary data. Most workers in this role earn between $47.12 and $63.22 per hour, depending on experience, location, and employer.

What is the difference between Entry Level Mainframe Assembler Programmer vs Entry Level COBOL Developer?

AspectEntry Level Mainframe Assembler ProgrammerEntry Level COBOL Developer
Required CredentialsBasic knowledge of assembler language, mainframe environmentBasic knowledge of COBOL language, mainframe environment
Work EnvironmentMainframe systems, legacy IT infrastructureMainframe systems, legacy IT infrastructure
Employer & Industry UsageFinancial institutions, government agencies, large corporationsFinancial institutions, government agencies, large corporations
Common Search & ComparisonYesYes

Both roles involve working with mainframe systems in similar industries and require knowledge of legacy programming languages. The main difference lies in the programming language focus: assembler versus COBOL. Entry Level Mainframe Assembler Programmers work with low-level assembler code, while Entry Level COBOL Developers focus on business applications using COBOL. Both roles are essential for maintaining legacy systems in large organizations.

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Infographic showing various Entry Level Mainframe Assembler Programmer 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 $112,558 per year, or $54.1 per hour.

Mainframe Assembler

Maintec Technologies

Wilmington, DE • On-site

$60 - $65/hr

Contractor

This job post has expired 1 day ago. Applications are no longer accepted.


Job description

Job Description:


Design, coding, and testing: Mainframe assemblers are responsible for designing, coding, and testing application programs using the IBM Assembler language. They should also be familiar with the entire Software Development Life Cycle (SDLC) and have a solid understanding of mainframe operating systems, such as z/OS. 


Debugging and troubleshooting: They perform debugging and troubleshooting of mainframe applications to ensure they function correctly and efficiently. 


Documentation: Mainframe assemblers may also be responsible for documenting the design of the assembler programs, explaining how they work, and providing guidelines for their use. 

Technical support: They provide technical support for mainframe systems, optimizing performance, and ensuring compliance with coding standards and technical design. 

These assemblers work closely with system architects and analysts to understand the requirements and specifications of a system, and then translate these into efficient, low-level machine code. They must keep themselves updated with the latest mainframe technologies and assembler programming techniques to ensure the continuous functionality and reliability of mainframe systems.