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Senior Ibm Mainframe Jobs (NOW HIRING)

System One

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Senior Mainframe/Assembler Developer - remote

Vienna, VA · Remote

$74 - $92/hr

We are currently seeking a senior Mainframe Systems Developer (Cobol/Assembler) for a long term, ... The position focuses heavily on IBM mainframe technologies and requires deep hands-on expertise in ...

JS Consulting

Sr. Mainframe Developer

Woodlawn, MD · On-site

$51 - $65.50/hr

Job Title- Sr. Mainframe Developer Project Location - Woodlawn, MD (5 days per week onsite ... Strong experience with IBM z/OS (OS/390/MVS) environment developing and maintaining JCL and COBOL ...

Citigroup, Inc.

Senior Mainframe Developer

Jacksonville, FL · On-site

$113.84K - $170.76K/yr

The Senior Mainframe Developer is a senior level position responsible for establishing and ... Experience with IBM utilities and other mainframe tools and data structures such as Fileaid, Rexx ...

Bitco Corporation

Mainframe Developer

Davenport, IA · Hybrid

$43.50 - $55.75/hr

Works with other Software Developers, Senior Software Developers and Leadership team to create ... IBM Mainframe experience in JCL, TSO, COBOL, PL/I, and Easytrieve * Systems analysis, design, and ...

BITCO Insurance Companies

Mainframe Developer

Davenport, IA · On-site +1

$43.50 - $55.75/hr

Works with other Software Developers, Senior Software Developers and Leadership team to create ... IBM Mainframe experience in JCL, TSO, COBOL, PL/I, and Easytrieve * Systems analysis, design, and ...

NAVA Software Solutions

Mainframe Developer

Morristown, NJ · On-site

$50.50 - $64.75/hr

NAVA Software solutions is looking for a Sr. Mainframe Engineer Details: Role: Sr. Mainframe ... in IBM Mainframes development * Technical expertise in Mainframes including COBOL, CICS, DB2 ...

Panha Solutions

Software Developer- Expert

Albany, NY · On-site

Sr. COBOL Developer IBM Mainframe Albany, New York, 30 Months ITS 84 months of COBOL programming experience in an IBM Mainframe Environment utilizing TSO. 84 months of MVS JCL experience. 84 months ...

Northern Trust

Mainframe Senior Developer

Chicago, IL

$99.60K - $169.20K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... IBM mainframe experience - JCL - DB2 o Strong SQL Skills o Experience in developing Stored ...

Northern Trust

Mainframe Senior Developer

Chicago, IL · On-site

$99.60K - $169.20K/yr

AND Principal Responsibilities The Mainframe Senior Developer is responsible for installing ... IBM mainframe experience - JCL - DB2 o Strong SQL Skills o Experience in developing Stored ...

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How much do senior ibm mainframe jobs pay per hour?

As of May 30, 2026, the average hourly pay for senior ibm mainframe in the United States is $57.65, according to ZipRecruiter salary data. Most workers in this role earn between $54.09 and $62.98 per hour, depending on experience, location, and employer.

What is the difference between Senior Ibm Mainframe vs Mainframe Developer?

AspectSenior Ibm MainframeMainframe Developer
CertificationsIBM Mainframe certifications, z/OS certificationsLikely similar, with focus on programming languages and tools
Work EnvironmentLarge enterprise mainframe systems, IBM environmentsDevelopment teams, coding, testing on mainframe platforms
Roles & ResponsibilitiesOversees mainframe operations, architecture, and maintenanceDevelops, codes, and tests mainframe applications
Industry UsageBanking, finance, government, insuranceSame industries, focused on application development

While both roles work within mainframe environments and may share certifications, a Senior Ibm Mainframe typically oversees system operations and architecture, whereas a Mainframe Developer focuses on coding and application development. The Senior Ibm Mainframe has a broader scope involving system management, while the Mainframe Developer concentrates on programming tasks within the mainframe ecosystem.

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Senior Ibm Mainframe jobs near you
Infographic showing various Senior Ibm Mainframe job openings in the United States as of May 2026, with employment types broken down into 32% Full Time, 62% Part Time, 5% Temporary, and 1% Contract. Highlights an 79% Physical, 7% Hybrid, and 14% Remote job distribution, with an average salary of $119,916 per year, or $57.7 per hour.
Senior Mainframe/Assembler Developer - remote

Senior Mainframe/Assembler Developer - remote

System One

Vienna, VA • Remote

$74 - $92/hr

Contractor

Medical, Dental, Vision, Life, Retirement, PTO

Posted 10 hours ago

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Job description

We are currently seeking a senior Mainframe Systems Developer (Cobol/Assembler) for a long term, remote contracting position.  Candidates must live in the United States, have at least 15 years of professional experience, and have at least 10 years of recent hands on experience with Cobol and Assembler.  Candidates will be responsible for designing, developing, testing, implementing, and supporting enterprise financial applications in a large-scale banking/credit union environment. The position focuses heavily on IBM mainframe technologies and requires deep hands-on expertise in Cobol, Assembler, DB2, CICS, JCL, and batch processing.

Responsibilities include:

  • Analyze business and technical requirements
  • Design and enhance mainframe applications
  • Develop and maintain COBOL and Assembler programs
  • Support batch and online transaction systems
  • Troubleshoot production issues and system failures
  • Conduct testing and code debugging
  • Maintain technical documentation
  • Work closely with stakeholders, vendors, operations teams, and business users
  • Support mission-critical financial systems and transaction processing environments  

This is a highly technical role for an experienced enterprise mainframe engineer with strong financial services experience.  Candidates must have a minimum of 10 years of recent hands on experience with:

Cobol

Assembler (Concept 14 macros)

DB2

CICS

JCL and batch processing

Banking systems

Troubleshooting and production support

Company Description

System One is a leading provider of specialized, highly technical services and solutions to critical infrastructure, technology, life sciences, and government sectors. We partner with large private and public organizations who trust us to execute their complex, mission-critical initiatives through our outsourced services and workforce solutions.