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Mainframes Developer Jobs in Jacksonville, FL (NOW HIRING)

FIS

Engineer Sr Lead, Systematics

Jacksonville, FL · On-site

Demonstrated ability to adapt to different mainframe/client environments and mainframe tool sets. Bonus if you have: * Minimum of 10 years experience working on FIS Systematics applications with ...

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Mainframes Developer information

See Jacksonville, FL salary details

$44.5K

$103.6K

$153.8K

How much do mainframes developer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for mainframes developer in Jacksonville, FL is $103,632.00, according to ZipRecruiter salary data. Most workers in this role earn between $83,400.00 and $120,500.00 per year, depending on experience, location, and employer.

Are mainframe engineers in demand?

Mainframes developers are in steady demand due to the continued use of mainframe systems in industries like finance, government, and healthcare. They require specialized skills in COBOL, JCL, and mainframe environments, and demand often depends on the organization's reliance on legacy systems. While some companies are transitioning to newer technologies, mainframe expertise remains valuable for maintaining critical infrastructure.

What is mainframe developer salary?

The salary for a mainframe developer typically ranges from $70,000 to $120,000 annually, depending on experience, location, and certifications. Skilled developers with expertise in COBOL, JCL, and mainframe environments tend to earn higher salaries, especially in industries like finance and government. Salaries may also vary based on the complexity of projects and the employer's size.

Is mainframe developer a good career?

Mainframe developers work with large-scale computer systems used by many organizations for critical applications. The role offers stable employment, competitive salaries, and opportunities to work with legacy technologies like COBOL and JCL. As demand persists in industries such as finance and government, it can be a solid career choice for those with relevant skills and certifications.

Can mainframe be replaced by AI?

Mainframes are large-scale computing systems used for critical enterprise applications, and while AI can automate certain tasks and improve efficiency, it does not replace the core functions of mainframes. Mainframe developers focus on maintaining and optimizing these systems, often integrating AI tools to enhance performance but not replacing the hardware or fundamental role of mainframes in data processing. Skills in legacy systems, programming languages like COBOL, and system security remain essential for mainframe professionals.

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

What are popular job titles related to Mainframes Developer jobs in Jacksonville, FL? For Mainframes Developer jobs in Jacksonville, FL, the most frequently searched job titles are:
What job categories do people searching Mainframes Developer jobs in Jacksonville, FL look for? The top searched job categories for Mainframes Developer jobs in Jacksonville, FL are:
What cities near Jacksonville, FL are hiring for Mainframes Developer jobs? Cities near Jacksonville, FL with the most Mainframes Developer job openings:
Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Jacksonville, FL as of July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $103,632 per year, or $49.8 per hour.
Information Technology_USA - USA_Developer

Information Technology_USA - USA_Developer

Real Soft, Inc.

Jacksonville, FL • On-site

Contractor

Posted 11 days ago

Job description

North Quincy MA )
/hour
Role Descriptions: Must Have TechnicalFunctional SkillsStrong Knowledge in following areas.COBOL| DB2| JCL|SQL Stored Procedure DevelopmentSupporting tools like SPUFI| FILE-AIDExcellent debugging and optimization skills.Good understanding of design patterns.Nice to have.Hands on PL1 experienceKnowledge of Online CICS| MQ and Batch ProcessingSupporting tools like REXXWork experience in RTC IDZ tools| JIRARoles ResponsibilitiesParticipate in all aspects of software development| including design| implementation| deployment beyond.Provide support for fixing defects during the testing cycle.Apply agile methodologies to streamline development and testing processMaintain high standards for code qualityDevelop and maintain applications using COBOL| PL1| JCL| DB2|CICSSupport knowledge such as check the mainframe logs| fix the job abendsExperience on SQL Stored ProcedureFinancial Services experience is a plusAbility to multi-task and to take the initiative when needed.
Essential Skills: Must Have TechnicalFunctional SkillsStrong Knowledge in following areas.COBOL| DB2| JCL|SQL Stored Procedure DevelopmentSupporting tools like SPUFI| FILE-AIDExcellent debugging and optimization skills.Good understanding of design patterns.Nice to have.Hands on PL1 experienceKnowledge of Online CICS| MQ and Batch ProcessingSupporting tools like REXXWork experience in RTC IDZ tools| JIRARoles ResponsibilitiesParticipate in all aspects of software development| including design| implementation| deployment beyond.Provide support for fixing defects during the testing cycle.Apply agile methodologies to streamline development and testing processMaintain high standards for code qualityDevelop and maintain applications using COBOL| PL1| JCL| DB2|CICSSupport knowledge such as check the mainframe logs| fix the job abendsExperience on SQL Stored ProcedureFinancial Services experience is a plusAbility to multi-task and to take the initiative when needed.
Desirable Skills:
Keyword:
Skills: Mainframe DB2 - Application Development~PL/SQL
Experience Required: 10 & Above, Project Code :

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