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Mainframe Developer Jobs in Connecticut (NOW HIRING)

Polar IT Services

ETL Developer

Hartford, CT · On-site

$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 ...

Polar IT Services

ETL Developer

Hartford, CT · On-site

$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 ...

Polar IT Services

ETL Developer

Hartford, CT · On-site

$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 ...

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 · On-site

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 ...

Unisys

Field Engineer Technician

East Hartford, CT · On-site

What success looks like in this role: • Serves as Field Engineer for large, complex clients and ... certifies mainframes, servers and other infrastructure associated with networks and peripherals.

Sonsoft Inc

Datastage Consultant

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 ...

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Mainframe Developer information

See Connecticut salary details

$9

$50

$68

How much do mainframe developer jobs pay per hour?

As of Jun 20, 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 the salary of a mainframe developer?

The salary of a mainframe developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Senior roles or those with specialized skills in COBOL, JCL, or mainframe security may earn higher compensation.

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 mainframe hard to learn?

Mainframe development can be challenging for beginners due to its specialized programming languages like COBOL and its unique environment. However, with dedicated training and practice, many developers can acquire the necessary skills to work effectively on mainframe systems.

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.

Is mainframe still in demand?

Mainframe developers are still in demand due to the continued reliance of many large organizations on mainframe systems for critical operations. Skills in COBOL, JCL, and mainframe security are valuable, and demand persists in industries like finance, insurance, and government. However, the overall number of roles is smaller compared to other modern development environments.

What are Mainframe Developers?

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, and why are they important?

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.

Can mainframe be replaced by AI?

Mainframe developers work with large-scale, legacy systems that require specialized knowledge of mainframe environments, programming languages, and security protocols. While AI can automate certain tasks like code analysis and testing, it is unlikely to fully replace mainframe developers due to the complexity and critical nature of mainframe systems. Instead, AI tools are used to augment their work and improve efficiency.
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? For Mainframe Developer jobs in CT, the most frequently searched job titles are:
Mainframe Developer jobs near you
Infographic showing various Mainframe Developer job openings in Connecticut as of June 2026, with employment types broken down into 68% Full Time, 21% Part Time, 4% Temporary, and 7% Contract. Highlights an 83% Physical, 7% Hybrid, and 10% Remote job distribution, with an average salary of $105,618 per year, or $50.8 per hour.
Infrastructure Engineering Advisor - Mainframe z/OS Storage Administrator

Infrastructure Engineering Advisor - Mainframe z/OS Storage Administrator

Cigna

Bloomfield, CT • On-site, Remote

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 15 days ago

Cigna Healthcare rating

8.3

Company rating: 8.3 out of 10

Based on 217 frontline employees who took The Breakroom Quiz

42nd of 873 rated healthcare providers

Job description

Infrastructure Engineering Senior Advisor - Mainframe Senior Storage Administrator
The Mainframe z/OS Storage Administrator Advisor is a hands-on, client-facing role responsible for supporting and enforcing policies, procedures, and best practices within the mainframe storage environment, including IBM DS8000 and TS7700 platforms.
This position requires performing configuration changes through ServiceNow during scheduled change windows, including occasional off-hours or night work.
Responsibilities
  • Support and maintain mainframe z/OS storage environments
  • Perform storage configuration changes through ServiceNow change management processes
  • Manage storage allocation, monitoring, utilization, and backup/recovery activities
  • Support and enhance disaster recovery strategies and processes
  • Administer and support DFSMS, DFHSM, DFDSS, DFSMSrmm, FDR, and GDPS environments
  • Support IBM DS8000 and TS7700 storage systems
  • Utilize and support JCL and ISPF utilities
  • Support DB2 SLB (HSM Fast Replication backup) processes
  • Leverage storage tools including IBM Tivoli Advanced Allocation Manager, IBM Advanced Catalog Management, and DFSMS Advanced Allocation Manager
  • Monitor storage environments using tools such as CA Vantage or IBM Omegamon XE
  • Participate in on-call rotations and off-hours change windows

Qualifications:
  • Bachelor's degree or equivalent experience
  • 10+ years of experience in mainframe z/OS storage administration
  • Strong experience with IBM DS8000 and TS7700 storage environments
  • Hands-on expertise with DFSMS, DFHSM, FDR, GDPS (Metro/Global Mirror, HyperSwap)
  • Experience with storage allocation, monitoring, Flash Copy, backup/recovery, and disaster recovery
  • Proficiency with JCL and ISPF utilities
  • Experience with change management processes (e.g., ServiceNow)
  • Ability to support on-call rotations and off-hours change windows
  • Self-starter with strong communication, collaboration, and interpersonal skills

If you will be working at home occasionally or permanently, the internet connection must be obtained through a cable broadband or fiber optic internet service provider with speeds of at least 10Mbps download/5Mbps upload.
For this position, we anticipate offering an annual salary of 123,500 - 205,800 USD / yearly, depending on relevant factors, including experience and geographic location.
This role is also anticipated to be eligible to participate in an annual bonus plan.
At The Cigna Group, you'll enjoy a comprehensive range of benefits, with a focus on supporting your whole health. Starting on day one of your employment, you'll be offered several health-related benefits including medical, vision, dental, and well-being and behavioral health programs. We also offer 401(k), company paid life insurance, tuition reimbursement, a minimum of 18 days of paid time off per year and paid holidays. For more details on our employee benefits programs, click here.
About The Cigna Group
Doing something meaningful starts with a simple decision, a commitment to changing lives. At The Cigna Group, we're dedicated to improving the health and vitality of those we serve. Through our divisions Cigna Healthcare and Evernorth Health Services, we are committed to enhancing the lives of our clients, customers and patients. Join us in driving growth and improving lives.
Qualified applicants will be considered without regard to race, color, age, disability, sex, childbirth (including pregnancy) or related medical conditions including but not limited to lactation, sexual orientation, gender identity or expression, veteran or military status, religion, national origin, ancestry, marital or familial status, genetic information, status with regard to public assistance, citizenship status or any other characteristic protected by applicable equal employment opportunity laws.
If you need a reasonable accommodation to complete the online application process, please email seeyourself@thecignagroup.com for assistance. Please note that this email inbox is dedicated to accommodation requests only and cannot provide application updates or accept resumes.
The Cigna Group has a tobacco-free policy and reserves the right not to hire tobacco/nicotine users in states where that is legally permissible. Candidates in such states who use tobacco/nicotine will not be considered for employment unless they enter a qualifying smoking cessation program prior to the start of their employment. These states include: Alabama, Alaska, Arizona, Arkansas, Delaware, Florida, Georgia, Hawaii, Idaho, Iowa, Kansas, Maryland, Massachusetts, Michigan, Nebraska, Ohio, Pennsylvania, Texas, Utah, Vermont, and Washington State.
Qualified applicants with criminal histories will be considered for employment in a manner consistent with all federal, state and local ordinances.

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