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Mainframe Administration Jobs in Connecticut (NOW HIRING)

Mainframe IT Project Manager

Hartford, CT · On-site

$99K - $117K/yr

... Have Administration and Management Employee management Report Compiling Arts and Humanities ... Mainframe background leveraging Cobol and Endeavor, partners with GSO team that is scaled based on ...

Experience with UKG Ready Mainframe is required; experience with ADP Workforce Now is an added plus. Responsibilities include but are not limited to: System Administration & Configuration Perform ...

Payroll Specialist

Hartford, CT · On-site

$55K - $65K/yr

Experience with UKG Ready Mainframe is required; experience with ADP Workforce Now is an added plus. Responsibilities include but are not limited to: System Administration & Configuration • Perform ...

Experience with UKG Ready Mainframe is required; experience with ADP Workforce Now is an added plus. Responsibilities include but are not limited to: System Administration & Configuration · Perform ...

Payroll Specialist

Hartford, CT · On-site

$55K - $65K/yr

Experience with UKG Ready Mainframe is required; experience with ADP Workforce Now is an added plus. Responsibilities include but are not limited to: System Administration & Configuration · Perform ...

Experience with UKG Ready Mainframe is required; experience with ADP Workforce Now is an added plus. Responsibilities include but are not limited to: System Administration & Configuration · Perform ...

Lead RPA Developer

New Haven, CT

$116K - $146K/yr

UiPath Orchestrator - enterprise administration, Unattended and Attended robot management, queue ... Strong experience in automating SAP, legacy, and mainframe applications, including SAP GUI ...

Lead RPA Developer

New Haven, CT · On-site

$116K - $146K/yr

UiPath Orchestrator - enterprise administration, Unattended and Attended robot management, queue ... Strong experience in automating SAP, legacy, and mainframe applications, including SAP GUI ...

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Mainframe Administration information

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

To thrive as a Mainframe Administrator, you need a solid understanding of mainframe operating systems (such as z/OS), system configuration, and troubleshooting, typically supported by a degree in computer science or related IT experience. Familiarity with tools like IBM System Automation, JCL, RACF, and monitoring solutions, as well as certifications such as IBM Certified System Administrator, is highly valued. Strong analytical thinking, attention to detail, and effective communication skills help administrators efficiently resolve issues and collaborate with IT teams. These skills and qualifications are essential to ensure the reliability, security, and optimal performance of critical enterprise computing environments.

What are some common challenges faced by mainframe administrators and how can they be addressed?

Mainframe Administrators often encounter challenges such as managing legacy systems, ensuring system uptime, and balancing security with accessibility. Keeping up with evolving technologies and integrating mainframes with modern applications can require continuous learning and adaptation. Effective communication with development and operations teams is vital to ensure seamless updates and minimize downtime. Proactively monitoring system performance and applying best practices for disaster recovery can also help mitigate risks and maintain reliability.

What is the difference between Mainframe Administration vs Mainframe Support?

AspectMainframe AdministrationMainframe Support
CertificationsIBM Certified System Administrator, z/OS certificationsSimilar certifications, often including z/OS support certifications
Work EnvironmentData centers, enterprise IT departments managing mainframe systemsHelp desks, support teams assisting users and troubleshooting issues
ResponsibilitiesSystem setup, configuration, maintenance, performance tuningIssue resolution, user support, incident management
Industry UsageFinancial institutions, government agencies, large corporationsSame industries, focusing on user support and problem resolution

Mainframe Administration involves managing and maintaining mainframe systems, ensuring optimal performance and security. Mainframe Support focuses on assisting users, troubleshooting issues, and resolving incidents. Both roles require similar certifications and are vital in industries relying on mainframe technology, but they differ in daily responsibilities and focus areas.

What is mainframe administration?

Mainframe Administration involves managing and maintaining mainframe computer systems, which are powerful servers used by large organizations for critical applications and bulk data processing. Mainframe Administrators are responsible for installing, configuring, monitoring, and securing mainframe hardware and software. They ensure system performance, troubleshoot technical issues, handle backup and recovery, and apply updates or patches to keep systems running smoothly and securely. This role often requires strong technical skills, attention to detail, and the ability to work with legacy systems.
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What cities in Connecticut are hiring for Mainframe Administration jobs? Cities in Connecticut with the most Mainframe Administration job openings:
Infographic showing various Mainframe Administration job openings in Connecticut as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, 1% Temporary, and 3% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Mainframe System Administrator

TecTammina

Trumbull, CT

Full-time

Re-posted 3 days ago


Job description

Company Description

Tech Tammina LLC

Job Description

Experience in z/OS & ISV administration

Experience in CICS administration in z/OS platform

Experience in MQ administration in z/OS platform

Installing & Configuration of z/OS systems

Performing System IPL and POR

Managing and Installing software products on z/OS systems using SMP/E (System Modification Program/Extended)

Installation, configuration and administration of day to day support of CICS transaction Server

Knowledge and experience with: z/OS, TSO/ISPF, Cobol, CICS, JCL in mainframe environment

Provide on-call 24/7 Incident Response to z/OS issues from production monitoring tools, Command Center personnel and Application Development Analysts

Coordination with application and infrastructure teams on software dependencies and timing of implementations

Open cases with vendors as necessary and apply PTFS as required to resolve issues

Qualifications

Experience in LPAR management

Manage mainframe storage & tape subsystems

Experience in TSO/ISPF, File Aid / File Manager, Expeditor/IBM Debugger and other MVS Utilities

Perform z/OS debugging and problem analysis, SVC dumps

Performance tuning, regularly review, evaluate RMF data

Review System Performance Reports with Scheduling, Adjust MSU's as Needed

Participate in Disaster Recovery Exercise

Additional Information

Job Status: Full Time 

Eligiblity: GC or US Citizens

Share the Profiles to mkonni(at)1stitsolutions.com

Contact: 703-349-1214

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