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Mainframe Assembler Programmer Jobs (NOW HIRING)

First Soft Solutions

Mainframe Developer

New York, NY · On-site

$53.50 - $69/hr

Job Summary We are looking for an experienced Mainframe Developer with strong COBOL and mainframe ... Exposure to IBM Assembler is a plus. * Experience with batch and online processing systems.

First Soft Solutions

Mainframe Developer

New York, NY · On-site

$53.50 - $69/hr

Job Summary We are looking for an experienced Mainframe Developer with strong COBOL and mainframe ... Exposure to IBM Assembler is a plus. * Experience with batch and online processing systems.

Broadcom, Inc.

Mainframe Software Engineer

Plano, TX · On-site +1

$91K - $146K/yr

This position is concentrated on the mainframe platform, with development in Assembler language ... Engineering Excellence Initiatives: * Take the lead in engineering excellence initiatives ...

NTT DATA Services

Mainframe Systems Programmer

Buffalo, NY · On-site +1

$95K - $222K/yr

This Mainframe Systems Programmer role involves upgrading and supporting the z/OS operating system ... Assembler * Rexx * Omegamon * RMF * SMF * SAS Must reside in the US #LI-NorthAmerica #Mainframe ...

NTT DATA Services

Mainframe Systems Programmer

Buffalo, NY · On-site +1

$95K - $222K/yr

This Mainframe Systems Programmer role involves upgrading and supporting the z/OS operating system ... Assembler * Rexx * Omegamon * RMF * SMF * SAS Must reside in the US #LI-NorthAmerica #Mainframe ...

NTT DATA Services

Mainframe Systems Programmer

Buffalo, NY · On-site +1

$95K - $222K/yr

This Mainframe Systems Programmer role involves upgrading and supporting the z/OS operating system ... Assembler * Rexx * Omegamon * RMF * SMF * SAS Must reside in the US #LI-NorthAmerica #Mainframe ...

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How much do mainframe assembler programmer jobs pay per hour?

As of Jun 23, 2026, the average hourly pay for 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 are some typical day-to-day responsibilities for a Mainframe Assembler Programmer?

As a Mainframe Assembler Programmer, your daily tasks often include writing, testing, and debugging assembler code to support core business applications and system utilities. You’ll work closely with systems analysts, application developers, and operations teams to troubleshoot issues, optimize program performance, and implement software enhancements. Regular responsibilities may also involve reviewing system logs, maintaining documentation, and participating in system upgrades or migrations. The role often requires a proactive approach to problem-solving and collaboration within a structured, process-driven team environment.

What are the key skills and qualifications needed to thrive in the Mainframe Assembler Programmer position, and why are they important?

To thrive as a Mainframe Assembler Programmer, you need strong expertise in low-level programming, a deep understanding of mainframe architectures (such as IBM z/OS), and often a degree in computer science or related field. Familiarity with tools like TSO, ISPF, JCL, and debugging utilities, along with experience using source control and system monitoring software, is highly valued, and certifications in mainframe technology can be beneficial. Excellent problem-solving abilities, meticulous attention to detail, and effective communication skills help you succeed in complex, team-based environments. These technical and interpersonal abilities are critical for maintaining system reliability, ensuring performance, and supporting business operations across large-scale enterprises.

What is a Mainframe Assembler Programmer job?

A Mainframe Assembler Programmer is responsible for writing, maintaining, and optimizing assembly language programs that run on mainframe computers. They work with low-level machine instructions to develop high-performance applications, often in industries like banking, insurance, and government. Their role includes debugging, performance tuning, and integrating new or existing software with mainframe systems. Strong knowledge of IBM mainframes, z/OS, and tools like High-Level Assembler (HLASM) is essential.

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Mainframe Assembler Programmer jobs near you
Infographic showing various Mainframe Assembler Programmer job openings in the United States as of June 2026, with employment types broken down into 40% Full Time, and 60% Contract. Highlights an 80% In-person, and 20% Remote job distribution, with an average salary of $112,558 per year, or $54.1 per hour.
Mainframe Developer

Mainframe Developer

First Soft Solutions

New York, NY • On-site

$53.50 - $69/hr

Full-time

Posted 7 days ago

Job description

Job Summary
We are looking for an experienced Mainframe Developer with strong COBOL and mainframe technologies expertise. The candidate will help modernize and migrate legacy mainframe applications to distributed platforms using AI-assisted migration tools and modernization frameworks.
Key Responsibilities
  • Analyze and modernize legacy mainframe applications.
  • Develop and maintain applications using COBOL and mainframe technologies.
  • Support migration of mainframe systems to distributed environments.
  • Utilize AI-based tools to accelerate code conversion and modernization.
  • Work with business teams to gather requirements and design solutions.
  • Perform unit testing, integration testing, and defect resolution.
  • Provide production support and troubleshooting when required.
Required Skills
  • 7+ years of Mainframe Development experience.
  • Strong experience with:
    • COBOL
    • DB2
    • IMS
    • VSAM
    • CICS
  • Exposure to IBM Assembler is a plus.
  • Experience with batch and online processing systems.
  • Knowledge of AI-assisted migration or modernization tools is highly preferred.
  • Strong problem-solving and communication skills
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About First Soft Solutions

Sourced by ZipRecruiter

First Soft Solutions custom application Development and Maintenance Services are designed to enable you to lower the total cost of ownership and the required quality for your application. While all application Development Outsourcing is Technically custom, The difference is that packaged applications were designed with a general set of features to be used by a broad range of users. Custom application development is capable of producing practically any feature you may desire for your site. Time and money are virtually the only limiting factors. Our goal is to provide Clients with the Solution that fits their specific and unique needs while giving them the knowledge they need to operate and maintain the New Systems and Software. Our allegiance is to the best solution for our Clients. Our experience and knowledgeable consultants are ready to go above and beyond expectations to assist you in obtaining your goals. We can also provides expert project management throughout the entire project life cycle.

Industry

It services

Company size

11 - 50 Employees

Headquarters location

East Brunswick, NJ, US

Year founded

2006

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