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Mainframe Systems Jobs (NOW HIRING)

InstantServe LLC

Mainframe Systems Programmer

Hartford, CT · On-site

$55.50 - $70.50/hr

Mainframe Systems Programmer - Hybrid (Connecticut) Location: Hybrid - Connecticut (Local Candidates Only) Duration: Long-Term Contract Job Overview The Connecticut Department of Social Services (DSS ...

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AgreeYa Solutions

Mainframe Systems Programmer

Downey, CA

$56.75 - $72.25/hr

Mainframe Systems Programmer/DBA is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and ...

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 ...

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How much do mainframe systems jobs pay per hour?

As of Jun 19, 2026, the average hourly pay for mainframe systems 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 are Mainframe Systems?

Mainframe systems are powerful computers used primarily by large organizations for critical applications, bulk data processing, and large-scale transaction processing. They are known for their reliability, security, and ability to handle massive volumes of data and users simultaneously. Mainframes support essential functions in industries like banking, healthcare, government, and insurance, where uptime and data integrity are crucial. Unlike typical servers, mainframes are designed to operate nonstop and process thousands of transactions per second.

Is mainframe a good career option?

Mainframe systems professionals design, maintain, and operate large-scale computer systems used by many organizations for critical applications. The role requires strong technical skills, knowledge of programming languages like COBOL, and familiarity with mainframe environments such as IBM z/OS. It is considered a stable career with steady demand, especially in finance, government, and large enterprises.

Is mainframe still in demand?

Mainframe systems professionals are still in demand due to the continued reliance of large organizations on mainframe infrastructure for critical applications and data processing. Skills in COBOL, JCL, and mainframe security are valuable, and many companies seek experienced mainframe technicians for maintenance and modernization projects.

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 strong knowledge of mainframe architectures, proficiency in operating systems like z/OS, and experience with programming languages such as COBOL or Assembler, usually supported by a degree in computer science or a related field. Familiarity with tools like IBM ISPF, JCL, RACF, and monitoring systems, as well as relevant certifications (e.g., IBM Certified System Programmer), is highly valued. Analytical thinking, problem-solving, and effective communication are crucial soft skills for diagnosing issues and collaborating with cross-functional IT teams. These abilities ensure the reliability, security, and efficiency of mission-critical enterprise systems that depend on mainframe technology.

Can mainframe be replaced by AI?

Mainframe systems are critical for large-scale data processing and transaction management in many industries. While AI can automate certain tasks and improve efficiency, it is unlikely to fully replace mainframes due to their reliability, security, and ability to handle high-volume workloads; instead, AI is often integrated to enhance mainframe operations. Mainframe professionals need skills in legacy systems, automation, and modern programming languages to adapt to evolving technology environments.

What is the difference between Mainframe Systems vs Mainframe Application Developers?

AspectMainframe SystemsMainframe Application Developers
Primary RoleManage and maintain mainframe hardware and system softwareDesign, develop, and modify applications running on mainframe platforms
Required SkillsMainframe OS, hardware, system administrationProgramming languages like COBOL, JCL, DB2, and application development
Work EnvironmentData centers, system operation centersDevelopment teams, project-based settings
CertificationsIBM Certified System Administrator, Mainframe certificationsProgramming certifications, COBOL certifications

While Mainframe Systems professionals focus on maintaining and managing mainframe hardware and operating systems, Mainframe Application Developers create and modify applications that run on these systems. Both roles require knowledge of mainframe environments, but their responsibilities differ significantly, with one centered on system management and the other on application development.

What are some common challenges faced by professionals working in Mainframe Systems, and how can they be addressed?

Mainframe Systems professionals often encounter challenges such as managing legacy code, ensuring system reliability, and integrating mainframes with modern technologies. Staying updated with new tools and methodologies, such as automation and DevOps practices, can help address these issues. Additionally, strong collaboration with application developers and network teams is essential to maintain system performance and security. Regular training and knowledge sharing within the team also play a crucial role in overcoming these challenges.

What jobs pay $500,000 a year in the US?

In the field of mainframe systems, senior roles such as mainframe architects, senior systems programmers, and IT directors can reach or exceed $500,000 annually, especially with extensive experience, specialized skills in COBOL or z/OS, and leadership responsibilities. High compensation often involves managing large-scale enterprise systems, working in financial or government sectors, and holding advanced certifications or advanced degrees.
More about Mainframe Systems jobs
What states have the most Mainframe Systems jobs? States with the most job openings for Mainframe Systems jobs include:
What job categories do people searching Mainframe Systems jobs look for? The top searched job categories for Mainframe Systems jobs are:
Mainframe Systems jobs near you
Mainframe Systems Programmer

Mainframe Systems Programmer

InstantServe LLC

Hartford, CT • On-site

$55.50 - $70.50/hr

Full-time

Posted yesterday

Job description

Job Title: Mainframe Systems Programmer - Hybrid (Connecticut)
Location: Hybrid - Connecticut (Local Candidates Only)
Duration: Long-Term Contract
Job Overview
The Connecticut Department of Social Services (DSS) is seeking an experienced Mainframe Systems Programmer to support a large-scale enterprise data migration and legacy modernization initiative. This role requires a senior-level professional with extensive hands-on experience in mainframe technologies, data conversion, system analysis, and batch processing environments. The selected candidate will play a key role in analyzing legacy applications, extracting and converting data, and supporting migration efforts from IMS-based systems to modern target platforms.
Key Responsibilities
  • Analyze and document existing legacy mainframe applications and business processes.
  • Design, develop, and execute data extraction, conversion, and migration solutions.
  • Modify, maintain, and enhance COBOL programs and JCL scripts to support migration activities.
  • Work extensively with IMS databases, including data analysis, validation, and reconciliation.
  • Develop and execute batch processing solutions and troubleshoot production issues.
  • Utilize FTP/SFTP processes for secure file transfers and data movement.
  • Perform data validation, quality assurance, and reconciliation between source and target systems.
  • Support testing activities, including unit, integration, system, and user acceptance testing.
  • Create technical documentation, migration procedures, and operational support materials.
  • Collaborate with business stakeholders, technical teams, and project management throughout the migration lifecycle.
  • Identify and resolve complex system and data-related issues independently.
Required Qualifications
  • 10+ years of experience as a Mainframe Systems Programmer or Mainframe Developer.
  • Strong hands-on experience with:
    • COBOL
    • JCL (Job Control Language)
    • IMS Database
    • Mainframe Development and Support
  • Experience performing data extraction, conversion, migration, and reconciliation activities.
  • Strong knowledge of batch processing environments and scheduling.
  • Experience with FTP/SFTP file transfer processes.
  • Proven ability to analyze and troubleshoot complex legacy systems.
  • Strong documentation, communication, and problem-solving skills.
  • Ability to work independently in a fast-paced project environment.
Preferred Qualifications
  • Experience with BMC Utilities for IMS.
  • Experience using File-AID, EZtrieve, CLIST, and REXX.
  • Prior involvement in legacy modernization or large-scale data migration projects.
  • Experience in government, healthcare, insurance, or financial services environments.
  • Familiarity with enterprise data integration and modernization initiatives.
Additional Information
  • Hybrid work arrangement within Connecticut.
  • Candidates must currently reside in Connecticut.
  • Strong preference for candidates with prior state government or public sector experience.
  • Immediate interviews for qualified local candidates.
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About InstantServe

Sourced by ZipRecruiter

InstantServe provides a one-stop solution to all Healthcare, IT/Non-IT Staffing needs. Established in 2016, InstantServe is a strong workforce of over 100+ go-getters with a demonstrated background in IT/Non-IT service. We are a nationally certified SBE from the Department of Administration (State of PA). As a proud Minority Woman Owned Small Business Enterprise (M/WBE), InstantServe boasts of a strong team of professionals who have extensive experience catering to several Federal, Public, Commercial, and Healthcare Clients which includes 26 States and 46 government agencies. InstantServe is a client-centric organization that offers cost-effective and reliable solutions. Client satisfaction is sacrosanct! Our team strives to provide the best staffing and IT solutions to take your business to the next level.

Industry

Recruiting and staffing services

Company size

11 - 50 Employees

Headquarters location

Wayne, PA, US

Year founded

2016

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