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Mainframe Systems Engineer Jobs (NOW HIRING)

nLeague

Mainframe Systems Programer

Hartford, CT · On-site

$55.50 - $70.50/hr

Mainframe Mainframe Programmer/ Developer Location: Hybrid- 55 Farmington Avenue Hartford ... Participate in migration testing, system integration testing, user acceptance testing, and ...

NTT DATA Services

Mainframe Systems Programmer

Buffalo, NY · On-site +1

$95K - $177K/yr

This Mainframe Systems Programmer role involves upgrading and supporting the z/OS operating system and ISV products, mainly from IBM and Computer Associates (CA). The successful candidate: * will ...

NTT DATA Services

Mainframe Systems Programmer

Buffalo, NY · On-site

$95K - $177K/yr

This Mainframe Systems Programmer role involves upgrading and supporting the z/OS operating system and ISV products, mainly from IBM and Computer Associates (CA). The successful candidate: * will ...

NTT DATA Services

Mainframe Systems Programmer

Buffalo, NY · On-site +1

$95K - $177K/yr

This Mainframe Systems Programmer role involves upgrading and supporting the z/OS operating system and ISV products, mainly from IBM and Computer Associates (CA). The successful candidate: * will ...

City of New York

Mainframe Systems Manager

Manhattan, NY · On-site

$150K/yr

The Mainframe Systems Manager will be responsible to: - Oversee, lead, and manage a team of system programmers, including day-to-day operations, scheduling, task delegation, performance management ...

New

Tech Mirrors

Mainframe Systems Programmer

Hartford, CT · On-site

$100 - $130/hr

Participate in migration testing, system integration testing, user acceptance testing, and ... Qualifications * 10+ years of Mainframe Development experience. * Expert-level COBOL programming ...

Highmark Health

Mainframe Systems Programmer - CICS/MQ

$56.25 - $71.75/hr

Experience in mainframe systems programmer with a focus on one or more of the following: * z/OS concepts and utilities * RACF * TSO * Plex Configurations * JES2 * SMP/e * JCL * Assembler * REXX ...

DSNSearch

CICS/MQ Systems Programmer

Chicago, IL · Remote

$56.75 - $72/hr

CICS /MQ MAINFRAME SYSTEMS PROGRAMMER CICS ~~ MQ ~~ Z/OS MAINFRAME SYSTEMS ~~ SMP/E ~~ JES 2 ~~ CICSPLEX ~~ INFRASTRUCTURE REMOTE !!~~ REMOTE!! ~~~~FULL TIME WITH BENEFITS/ANNUAL BONUS OPPORTUNITY~

NTT DATA North America

Mainframe Systems Programmer

$56.25 - $71.75/hr

NTT DATA is a trusted global innovator of business and technology services, seeking a Mainframe Systems Programmer to join their team. The role involves upgrading and supporting the z/OS operating ...

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Mainframe Systems Engineer information

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How much do mainframe systems engineer jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for mainframe systems engineer in the United States is $58.18, according to ZipRecruiter salary data. Most workers in this role earn between $52.88 and $67.31 per hour, depending on experience, location, and employer.

What is a mainframe systems engineer?

Mainframe Systems Engineers are IT professionals who design, implement, manage, and maintain mainframe computer systems used by large organizations for critical applications and data processing. They ensure the mainframe environment runs efficiently, securely, and reliably, handling tasks such as system upgrades, performance tuning, troubleshooting, and disaster recovery. Mainframe Systems Engineers often work with operating systems like IBM z/OS, manage storage and networking, and provide technical support for mainframe-based applications.

What are the key skills and qualifications needed to thrive as a mainframe systems engineer, and why are they important?

To thrive as a Mainframe Systems Engineer, you need expertise in mainframe operating systems (such as z/OS), systems programming, and performance tuning, often supported by a degree in computer science or a related field. Familiarity with IBM mainframe tools, JCL, RACF, and monitoring software, as well as relevant certifications like IBM Certified System Programmer, is typically required. Strong analytical thinking, problem-solving, and effective communication help engineers manage complex systems and collaborate with IT teams. These skills ensure the reliability, security, and efficiency of critical enterprise computing environments.

What are the common challenges faced by mainframe systems engineers when supporting legacy systems, and how can they be addressed?

Mainframe Systems Engineers often encounter challenges such as integrating legacy mainframe systems with modern technologies, managing system upgrades without disrupting business operations, and ensuring security compliance. Addressing these challenges typically involves thorough change management processes, continuous learning to stay updated on both mainframe and emerging technologies, and collaborating closely with cross-functional teams like application developers and cybersecurity experts. Building strong documentation and leveraging automation tools can also help streamline maintenance and minimize errors.

What is the difference between Mainframe Systems Engineer vs Mainframe Systems Analyst?

AspectMainframe Systems EngineerMainframe Systems Analyst
Required CredentialsTypically requires a degree in Computer Science or Information Technology, plus certifications like IBM Certified System AdministratorSimilar credentials, often with additional focus on analysis and requirements gathering
Work EnvironmentHands-on technical roles managing hardware, software, and system configurationsFocuses on analyzing system needs, user requirements, and optimizing system performance
Employer & Industry UsageUsed in banking, finance, government sectors with large mainframe infrastructuresCommon in organizations needing system analysis and process improvement for mainframe environments

The Mainframe Systems Engineer and Mainframe Systems Analyst roles share similar credentials and industry usage but differ in focus. Engineers handle technical system management, while Analysts focus on system requirements and optimization. Both roles are vital in maintaining and improving mainframe operations in large organizations.

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What job categories do people searching Mainframe Systems Engineer jobs look for?

The top searched job categories for Mainframe Systems Engineer jobs are:

Mainframe Systems Engineer jobs near you
Infographic showing various Mainframe Systems Engineer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 9% Part Time, 4% Contract, and 1% Nights. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $121,006 per year, or $58.2 per hour.

Mainframe Systems Programer

nLeague

Hartford, CT • On-site

$55.50 - $70.50/hr

Contractor

Re-posted 14 days ago

Job description

Job id: Mainframe

Mainframe Programmer/ Developer

Location: Hybrid- 55 Farmington Avenue   Hartford, Connecticut

Client: CT DSS

Duration: 06+ months

Job Description:

  • Analyse existing mainframe applications, databases, files, and batch processing workflows to support migration activities.
  • Design, develop, and execute data extraction processes from IMS databases and legacy mainframe data sources.
  • Create, modify, and support JCL required for data extracts, file transfers, conversion processing, and migration testing.
  • Perform COBOL program analysis and code modifications to support data extraction, transformation, validation, and reconciliation requirements.
  • Review and update FTP/SFTP processes to support secure transmission of migration files between source and target environments.
  • Utilize IMS utilities and BMC Utilities for IMS to unload, extract, validate, and reconcile database content.
  • Develop and execute data validation and reconciliation procedures to ensure data integrity throughout the migration lifecycle.
  • Support file mapping, field-level transformation logic, and data conversion specifications.
  • Troubleshoot batch failures, abends, data discrepancies, and performance issues related to migration processing.
  • Collaborate with database administrators, architects, business analysts, and project teams to define migration requirements and resolve technical challenges.
  • Create technical documentation, migration runbooks, implementation procedures, and production support documentation.
  • Participate in migration testing, system integration testing, user acceptance testing, and production implementation activities.
  • Provide production support during migration cutover and post-implementation stabilization periods.
  • Identify opportunities for automation using CLIST, REXX, File-AID, and other mainframe utilities.
  • Ensure compliance with enterprise change management, security, and audit requirements.
  • Required Qualifications
  • 10+ years of Mainframe Development experience.
  • Expert-level COBOL programming experience.
  • Strong JCL development and troubleshooting skills.
  • Extensive IMS Database experience.
  • Experience with BMC Utilities for IMS.
  • Experience developing large-scale data extracts and conversion processes.
  • Strong understanding of FTP/SFTP file transfer methodologies.
  • Proven experience supporting enterprise data migration or modernization initiatives.
  • Experience performing data analysis, reconciliation, and validation.
  • Ability to work independently with minimal supervision in a deadline-driven environment.
  • Preferred Qualifications
  • Experience with File-AID.
  • Experience with EZtrieve.
  • Experience with CLIST and REXX automation.
  • Prior experience with legacy modernization or cloud migration projects.
  • Experience supporting financial services, insurance, healthcare, or government mainframe environments.
  • Critical Success Factors
  • Ability to quickly assess complex legacy environments.
  • Strong problem-solving and troubleshooting capabilities.
  • Excellent communication and documentation skills.
  • Ability to meet aggressive deadlines and deliver high-quality migration solutions under tight timelines.