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Mainframe Software Developer Jobs in Jacksonville, FL

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$9

$49

$67

How much do mainframe software developer jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for mainframe software developer in Jacksonville, FL is $49.46, according to ZipRecruiter salary data. Most workers in this role earn between $43.65 and $56.11 per hour, depending on experience, location, and employer.

What is a mainframe software developer?

A Mainframe Software Developer is an IT professional who designs, develops, tests, and maintains software applications that run on mainframe computers. These developers typically work with programming languages such as COBOL, JCL, and Assembler, and are responsible for ensuring the performance and reliability of critical business systems used by large organizations. Mainframe Software Developers often collaborate with business analysts, project managers, and other IT staff to support and enhance legacy systems, as well as to integrate new technologies with existing mainframe infrastructure.

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

To thrive as a Mainframe Software Developer, you need expertise in COBOL, JCL, mainframe operating systems (such as z/OS), and a background in computer science or related fields. Familiarity with mainframe tools like IBM CICS, DB2, and version control systems, along with certifications such as IBM Certified System Programmer, is highly valued. Strong analytical thinking, problem-solving abilities, and effective communication set standout professionals apart in this field. These skills ensure the maintenance of critical legacy systems, support for business operations, and seamless integration with modern technologies.

How does a mainframe software developer typically collaborate with cross-functional teams in a modern IT environment?

Mainframe Software Developers frequently work with cross-functional teams that include business analysts, system architects, QA testers, and DevOps engineers. Collaboration often involves participating in daily stand-ups, code reviews, and joint problem-solving sessions to ensure seamless integration of mainframe applications with newer technologies. Developers also play a key role in translating business requirements into robust mainframe solutions, and may be involved in mentoring junior developers or coordinating with offshore teams. This collaborative environment helps ensure that legacy systems remain aligned with evolving business needs and IT strategies.

What is the difference between Mainframe Software Developer vs Mainframe Systems Analyst?

AspectMainframe Software DeveloperMainframe Systems Analyst
Required CredentialsBachelor's in Computer Science or related field, certifications like IBM Certified SpecialistBachelor's in IT, Computer Science, or related, often with certifications in mainframe systems
Work EnvironmentDevelops and codes mainframe applications, often in COBOL, PL/I, or AssemblerAnalyzes system requirements, designs solutions, and coordinates between users and developers
Employer & Industry UsageFinancial institutions, government agencies, large corporations using mainframe systemsSame industries, focusing on system analysis, requirements gathering, and process improvements

While Mainframe Software Developers focus on coding and building mainframe applications, Mainframe Systems Analysts analyze existing systems and gather requirements to improve or implement new solutions. Both roles are essential in mainframe environments and often collaborate closely.

Is a mainframe software developer a good career?

A mainframe software developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical operations. The role offers stable employment, competitive salaries, and opportunities to work with legacy systems and mainframe programming languages like COBOL. However, it requires specific skills and certifications, and the field is gradually evolving as organizations adopt newer technologies.

Is mainframe software developer still in demand?

Mainframe software developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. These roles often require skills in COBOL, JCL, and mainframe environments, with ongoing opportunities for maintenance, modernization, and integration projects.

What are popular job titles related to Mainframe Software Developer jobs in Jacksonville, FL?

For Mainframe Software Developer jobs in Jacksonville, FL, the most frequently searched job titles are:

What job categories do people searching Mainframe Software Developer jobs in Jacksonville, FL look for?

The top searched job categories for Mainframe Software Developer jobs in Jacksonville, FL are:

What cities near Jacksonville, FL are hiring for Mainframe Software Developer jobs?

Cities near Jacksonville, FL with the most Mainframe Software Developer job openings:

Mainframe Software Developer jobs near you
Infographic showing various Mainframe Software Developer job openings in Jacksonville, FL as of August 2026, with employment types broken down into 77% Full Time, and 23% Contract. Highlights an 92% In-person, and 8% Remote job distribution, with an average salary of $102,873 per year, or $49.5 per hour.

Information Technology_USA - USA_Developer

Real Soft, Inc.

Jacksonville, FL • On-site

$60 - $65/hr

Other

Re-posted 18 days ago

Job description

Request ID: 99225-1
Start/End Dates: 7/30/2026 - 1/30/2027
Tax Work Location: US Default
Job Title: Information Technology_USA - USA_Developer
Job Description: Bill Rate: MAX CONFIRMED $60 to $65
Location: ONSITE- LOCAL Minneapolis MN ONLY
Duration: 6 months
**Client has come back stating he want to evaluate only those candidates who can come in person to Minneapolis office**
Role: Mainframe Developer
Descriptions:
"• • Design, code, test, debug, document, maintain, and modify computer programs of high complexity, significance, and risk
• • Participate in application architecture functions including estimating and defining time tables, cost and project tasks
• • Recommend solutions to improve business with a focus on core architecture, technology strategies and standards
• • Guide others through change impact analysis
• • Establish, refine and integrate development and test environment tools and software as needed
• • Review, analyze, refine and integrate development and test environment tools and software as needed
• • Create and recommend improvements to unit, test plans and testing process based on assessment of organizational needs
• • Collaborate closely with teams in all stages of software development lifecycle including design, development and testing of the system
• • Design basic and detailed program specifications while ensuring that expected application performance levels are achieved by managing interfaces, service levels, standards, and configurations
• • Guide technical staff and business partners to investigate, review, and solve complex, multidisciplinary business problems
• • Monitor operating efficiency and organizational needs of existing application systems and identify opportunities to fine-tune and optimize applications of developed projects and recommend technical solutions
• • Demonstrate solid understanding of the business needs driving the projects"
"• • 7+ years of experience with developing and implementing applications
• • 10 to 15 years of experience in Cobol, JCL,DB2
Preferred Skills/Experience:
• Cobol, JCL,DB2, CICS and VSAM development experience. Strong Endevor, FileManager, CA7, IDZ, GITLAB and TSO
• Development skills, Tool experience.
• • Excellent debugging skills
• • Good understanding of third-party dependency management and transitive dependency issues
• • Strong knowledge on DB2 database
• • Understanding of the software development life cycle/Agile development experience
• • Experience with implementation and release management activities
• • Good understanding of unit/system and functional testing methodologies
• • Experience working in large transaction-based systems
• • Experience writing technical designs
• • Experience documenting technical functions
• • Strong Communication and good leadership skills
• • Have a strong ability and interest in working with a diverse range of technical and non-technical teams.
• • Strong proclivity to follow coding standards and execute a best practices approach in build processes.
• • Nice to have: MQ knowledge"

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