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Mainframe Developer Jobs in Connecticut (NOW HIRING)

ICONMA

Mainframe IT Project Manager

Hartford, CT

$99K - $117K/yr

Our Staff Members Our in-house team offers a broad range of Information Technology, Engineering ... Mainframe IT Project Manager Location: Hartford, CT Duration: 6 months with possible contract to ...

Polarits

ETL Developer

Hartford, CT · On-site

$110 - $170/hr

Job Title ETL Developer Location Hartford, CT, hybrid schedule Length 12 months+ Visa H4 EAD, GC ... This person must have strong experience and understanding of COBOL and mainframe systems, they will ...

Polar IT Services

ETL Developer

Hartford, CT · On-site +1

$51.50 - $67.25/hr

Job Title: ETL Developer Location: Hartford, CT, hybrid schedule Length: 12 months+ Visa: H4 EAD ... This person must have strong experience and understanding of COBOL and mainframe systems, they will ...

Jobtailor

Lead RPA Developer

New Haven, CT · On-site

$120 - $180/hr

Lead and mentor developers through code reviews, coaching, and best practices. * Define coding ... Strong experience in automating SAP, legacy, and mainframe applications, including SAP GUI ...

CVS Health

Staff Software Development Engineer

Hartford, CT · On-site +1

$118K - $260K/yr

Develop mainframe applications according to customer specifications and requirements * Participate in requirements gathering and design sessions * Work as part of a team to ensure solutions are ...

Traka (Assa Abloy)

Lead RPA Developer

New Haven, CT · On-site

$120 - $190/hr

As **Lead RPA Developer**, you will play a critical role in delivering high-quality, scalable ... Strong experience in automating SAP, legacy, and mainframe applications, including SAP GUI ...

Assa Abloy

Lead RPA Developer

New Haven, CT · On-site

$116K - $146K/yr

As Lead RPA Developer , you will play a critical role in delivering high-quality, scalable ... Strong experience in automating SAP, legacy, and mainframe applications, including SAP GUI ...

ASSA ABLOY

Lead RPA Developer

New Haven, CT

$116K - $146K/yr

As Lead RPA Developer , you will play a critical role in delivering high-quality, scalable ... Strong experience in automating SAP, legacy, and mainframe applications, including SAP GUI ...

Sonsoft Inc

Datastage

Hartford, CT

Hands-on experience in integrating data from heterogeneous data sources spanning across mainframes ... Experience and understanding of in Production support and performance engineering. * Technical ...

Sonsoft Inc

Datastage

Hartford, CT

Hands-on experience in integrating data from heterogeneous data sources spanning across mainframes ... Experience and understanding of in Production support and performance engineering. * Technical ...

Unisys

Field Engineer Technician

East Hartford, CT · On-site

Serves as Field Engineer for large, complex clients and across the range of company products and ... Tests and certifies mainframes, servers and other infrastructure associated with networks and ...

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Mainframe Developer information

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How much do mainframe developer jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for mainframe developer in Connecticut is $50.78, according to ZipRecruiter salary data. Most workers in this role earn between $44.81 and $57.64 per hour, depending on experience, location, and employer.

What is a mainframe developer?

Mainframe Developers are specialized software engineers who design, develop, maintain, and troubleshoot applications on mainframe computer systems, such as IBM's z/OS. They typically work with languages like COBOL, JCL, and CICS, and are responsible for ensuring the performance, security, and reliability of mission-critical business applications. Mainframe Developers are commonly employed in industries like banking, insurance, and government, where large-scale, high-volume transaction processing is essential.

What are the key skills and qualifications needed to thrive as a mainframe developer?

To thrive as a Mainframe Developer, you need expertise in programming languages such as COBOL, JCL, and SQL, along with a strong understanding of mainframe operating systems and batch processing concepts. Familiarity with tools like IBM z/OS, DB2, CICS, and version control systems is typically required, and certifications from IBM or related organizations can be beneficial. Strong problem-solving abilities, attention to detail, and effective communication skills help Mainframe Developers excel in troubleshooting and collaborating with cross-functional teams. These skills are crucial for maintaining, optimizing, and modernizing legacy systems that are vital to many large organizations’ operations.

What are some common challenges mainframe developers face when integrating legacy systems with modern applications?

Mainframe Developers often encounter challenges such as ensuring compatibility between legacy systems and newer technologies, managing data migration without disrupting business operations, and maintaining the security of sensitive data. Effective communication with cross-functional teams, such as application developers and infrastructure engineers, is essential to address these challenges. Staying updated on both mainframe and modern programming practices helps ease integration and ensures long-term system reliability.

What is the difference between Mainframe Developer vs Mainframe Analyst?

AspectMainframe DeveloperMainframe Analyst
Primary RoleDesigning, coding, and testing mainframe applicationsAnalyzing and maintaining existing mainframe systems
Skills & CertificationsCOBOL, JCL, DB2, certifications like IBM Certified DeveloperCOBOL, JCL, system analysis, troubleshooting skills
Work EnvironmentDevelopment teams, coding in mainframe environmentsSupport teams, system analysis, user support
Industry UsageFinancial services, insurance, government agenciesFinancial institutions, healthcare, government agencies

While Mainframe Developers focus on creating and implementing mainframe applications, Mainframe Analysts primarily analyze, troubleshoot, and maintain existing systems. Both roles require similar technical skills and often work within the same industries, but their core responsibilities differ in development versus support and analysis.

Is a mainframe developer a good career?

A mainframe developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. The role offers stable employment, competitive salaries, and opportunities to work with legacy technologies like COBOL and JCL, but it may require ongoing learning of evolving mainframe tools and certifications. Overall, it can be a good career for those interested in enterprise computing and system stability.

Is a mainframe developer hard to learn?

Mainframe developers typically need to learn specialized programming languages like COBOL and understand mainframe environments, which can have a steep learning curve for beginners. However, with prior programming experience and training, acquiring the necessary skills is achievable, and many employers offer on-the-job training or certification programs.

Is mainframe developer still in demand?

Mainframe developers are still in demand in industries such as finance, insurance, and government, where legacy systems remain critical. They typically work with COBOL, JCL, and mainframe environments, and demand depends on the organization's reliance on mainframe technology and ongoing maintenance needs.

What are popular job titles related to Mainframe Developer jobs in Connecticut?

For Mainframe Developer jobs in Connecticut, the most frequently searched job titles are:

What job categories do people searching Mainframe Developer jobs in Connecticut look for?

The top searched job categories for Mainframe Developer jobs in Connecticut are:

What are popular job titles related to Mainframe Developer jobs in CT?

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Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Connecticut as of August 2026, with employment types broken down into 79% Full Time, 4% Part Time, 2% Temporary, and 15% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $105,618 per year, or $50.8 per hour.

Senior Dell EMC Mainframe Storage Engineer

Neshent Technologies

Darien, CT • On-site

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

We are seeking a Senior Dell EMC Mainframe Storage Engineer with expertise in Mainframe Enablers (MFE) and Geographically Dispersed Disaster Restart (GDDR) to support a highly available enterprise mainframe storage environment. The ideal candidate will have hands-on experience troubleshooting GDDR automation, SRDF replication, and disaster recovery processes within mission-critical production environments.

Roles and Responsibilities
  • Provide production support for Dell EMC Mainframe Enablers (MFE) and GDDR environments.
  • Troubleshoot GDDR automation failures, restart issues, and recovery scenarios.
  • Support SRDF/S and SRDF/A replication, AutoSwap, and consistency group operations.
  • Perform manual recovery and resynchronization when automated recovery processes fail.
  • Diagnose replication failures, interrupted scripts, and consistency group issues.
  • Coordinate array-side recovery activities with host-side operations.
  • Determine when replication can be safely resumed following outages or failures.
  • Participate in Sev 1 and Sev 2 production incident response and technical bridge calls.
  • Analyze logs, command outputs, configurations, and system diagnostics to identify root causes.
  • Develop and maintain operational documentation, recovery procedures, and runbooks.
  • Collaborate with infrastructure, operations, and vendor support teams to resolve complex storage issues.
  • Assist with technical escalations by documenting findings and coordinating with vendor support when required.
Required Qualifications
  • Extensive hands-on experience with Dell EMC Mainframe Enablers (MFE).
  • Strong expertise with Dell EMC GDDR/GDR, preferably GDDR 6.x.
  • Experience configuring and supporting GDDR automation, scripts, overrides, and recovery procedures.
  • Strong knowledge of SRDF/S, SRDF/A, AutoSwap, and consistency group management.
  • Experience troubleshooting GDDR automation failures, interrupted replication, and manual recovery scenarios.
  • Proficiency with zDP and Symmetrix command-line utilities.
  • Strong understanding of mainframe storage operations, FICON, and Fibre Channel technologies.
  • Experience handling replication drops, resynchronization, full-push recovery, and device cleanup.
  • Ability to coordinate host-side and array-side recovery activities.
  • Experience supporting enterprise production environments with high availability requirements.
  • Strong analytical, troubleshooting, and communication skills.
Preferred Qualifications
  • Experience supporting VMAX 950F and PowerMax 8500 storage platforms.
  • Experience with enterprise disaster recovery and replication solutions.
  • Experience supporting large-scale, mission-critical production environments.
On-Call & Support Expectations
  • Participate in a 24x7 on-call rotation for critical production incidents.
  • Provide primary and backup support for Sev 1 and Sev 2 incidents.
  • Respond remotely to production outages and participate in live technical bridge calls.
  • Review logs, configurations, command outputs, and operational documentation during incident resolution.
  • Maintain support documentation, known issues, recovery procedures, and escalation paths.
  • Work with vendor support teams for product-related issues while providing technical analysis, issue isolation, and recovery guidance.

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