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Mainframe Assembler Jobs (NOW HIRING)

Photon

Sr Developer (FIS Systematics) - Texas

Dallas, TX · On-site

$54 - $71.25/hr

* Expert knowledge and hands-on experience in Mainframe z/OS CICS, COBOL, VSAM, JCL, MQ, XML/MLI, Change-man and various tools on the mainframe. Assembler Knowledge is a plus * Expertise in Systematics ...

SolGenie

Senior Mainframe Analyst / Developer

Senior Mainframe Analyst / Developer Duration: 1 yr Location Remote Domain: Mainframe / Legacy ... Experience translating COBOL/Assembler logic into BRDs, User Stories, functional requirements, and ...

Noblesoft Technologies

Mainframe support

Weehawken, NJ · On-site

$53.25 - $68.50/hr

Preferred expertise in languages like COBOL, JCL, Assembler. * Knowledge of database management systems like DB2 and VSAM. * Understanding of mainframe security protocols, such as RACF, and best ...

Triunity Software, Inc.

Mainframe Developer

Austin, TX · On-site

$90 - $130/hr

Write, test, and debug code using mainframe languages such as COBOL, JCL, or Assembler * Analyze and resolve mainframe system issues, ensuring high availability and performance * Collaborate with ...

Georgia IT, Inc.

Lead Mainframe Developer

O Fallon, MO · On-site

$45.75 - $59/hr

... Assembler Language, MVS, z/OS and mainframe environment • Good analytical and problem-solving ... skills. • Experience in Agile project delivery and DEVOPS tools. • Ability to prioritise and ...

Syntricate Technologies

Assembler

Atlanta, GA · On-site

$15.50 - $19/hr

The role involves writing, testing, and maintaining high-quality assembler code for mainframe applications, ensuring compliance with organizational standards and collaborating with other developers ...

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 ...

Georgia IT, Inc.

Lead Mainframe Developer

O Fallon, MO · On-site

$45.75 - $59/hr

... Assembler Language, MVS, z/OS and mainframe environment • Good analytical and problem-solving ... skills. • Experience in Agile project delivery and DEVOPS tools. • Ability to prioritise and ...

RIT Solutions, Inc.

: MAINFRAME DEVELOPER

$50.25 - $64.50/hr

RIT Solutions, Inc. is seeking a Mainframe Developer for a contract position. The role requires ... Assembler experience • 4+ years of Endevor experience • 4+ years of Virtual Storage Access ...

ClinDCast LLC

Mainframe Z/OS Architect

Delray Beach, FL · Remote

... I, Assembler & z/OS ✅ Experience with system performance tuning, high availability & security ✅ Modernization & integration with cloud, microservices & APIs ✅ Hands-on with DevOps, Jenkins ...

Accenture

Mainframe Specialist

Kirkland, WA · On-site

$70K - $196K/yr

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

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

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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How much do mainframe assembler jobs pay per hour?

As of Sep 5, 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 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.

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 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.

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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 82% Full Time, 4% Part Time, 1% Temporary, 7% Contract, and 6% Nights. Highlights an 99% Physical, and 1% Remote job distribution, with an average salary of $111,026 per year, or $53.4 per hour.

Mainframe Developer with ASSEMBLER: Onsite Role

SOFTHQ INC

Omaha, NE • On-site

$46.75 - $60.25/hr

Contractor

Re-posted 13 days ago

Job description

Role: Mainframe Developer with Assembler

Location: Omaha, NE , Onsite

Duration: 6+ months

Description

Need Mainframe Developer with Assembler experience