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Java Mainframe Jobs in Jacksonville, FL (NOW HIRING)

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$9

$49

$67

How much do java mainframe jobs pay per hour?

As of Jun 18, 2026, the average hourly pay for java mainframe 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 are the key skills and qualifications needed to thrive in the Java Mainframe position, and why are they important?

Excelling as a Java Mainframe professional requires strong skills in both Java development and mainframe technologies such as COBOL, JCL, and DB2, as well as a relevant degree in computer science or a related field. Familiarity with mainframe emulators, version control systems like Git, and certifications in Java or mainframe programming enhance technical credibility. Analytical thinking, problem-solving abilities, and effective communication are valuable soft skills in this position. These competencies are essential for successfully modernizing legacy systems, ensuring application reliability, and facilitating collaboration between development and operations teams.

Are Java jobs still in demand?

Java development remains in demand across various industries due to its widespread use in enterprise applications, Android development, and backend systems. Java Mainframe roles are less common but may still exist in organizations maintaining legacy systems; proficiency in related tools like Spring or cloud platforms can enhance job prospects.

Is Java outdated in 2026?

Java remains a widely used programming language in 2026, especially in enterprise environments and mainframe systems. Java developers are in demand for maintaining legacy applications and working with modern frameworks, making it a valuable skill for many IT roles. Continuous updates and strong community support help ensure its relevance.

Is mainframe still in demand?

Mainframe skills remain in demand for large enterprises that rely on legacy systems, especially in banking, finance, and government sectors. Java Mainframe developers with knowledge of COBOL, JCL, and mainframe environments are valued for maintaining and modernizing these systems, which often require specialized certifications and experience. The demand is steady due to the critical nature of mainframe operations and the ongoing need for system integration and security.

What is a Java Mainframe job?

A Java Mainframe job involves developing, maintaining, and optimizing applications that run on mainframe systems using Java and related technologies. Professionals in this role work with legacy systems, integrating modern Java-based applications with COBOL, DB2, CICS, and other mainframe technologies. They often focus on performance tuning, debugging, and ensuring seamless interaction between mainframe and distributed systems. This role requires expertise in both Java programming and mainframe architectures.

What are the typical responsibilities of a Java Mainframe developer in a modern IT team?

A Java Mainframe developer typically works on integrating and maintaining legacy mainframe systems while developing new Java-based applications or interfaces. Responsibilities may include analyzing system requirements, coding, debugging, performance tuning, and ensuring smooth data exchange between distributed and mainframe environments. You will often collaborate closely with business analysts, mainframe specialists, and other software developers to deliver seamless solutions. This role can provide variety and opportunities to learn both legacy and modern technologies, positioning you well for future career growth in enterprise IT environments.

Can Java run on a mainframe?

Java Mainframe developers work with Java applications on mainframe systems, which often run z/OS or similar environments. Java can run on mainframes using specialized runtime environments like IBM's Java Virtual Machine, enabling integration with legacy mainframe applications and tools. Knowledge of mainframe architecture and Java development is essential for this role.
What are popular job titles related to Java Mainframe jobs in Jacksonville, FL? For Java Mainframe jobs in Jacksonville, FL, the most frequently searched job titles are:
What job categories do people searching Java Mainframe jobs in Jacksonville, FL look for? The top searched job categories for Java Mainframe jobs in Jacksonville, FL are:
Java Mainframe jobs near you
Infographic showing various Java Mainframe job openings in Jacksonville, FL as of June 2026, with employment types broken down into 92% Full Time, 7% Part Time, and 1% Contract. Highlights an 83% Physical, 7% Hybrid, and 10% Remote job distribution, with an average salary of $102,873 per year, or $49.5 per hour.
Senior Developer

Senior Developer

Intercontinental Exchange Holdings, Inc.

Jacksonville, FL

$50.50 - $66.75/hr

Full-time

Posted 9 days ago

Job description

Overview

Job Purpose

The MSP Development community is at the core of MSP Mortgage Technology. Our team is responsible for enhancing, maintaining, and supporting both internal and clientfacing MSP functionality through efficient, highquality development practices that protect and strengthen the integrity of the MSP platform.

The MSP TOD CICS Team works closely with internal support groups and crossfunctional partners to understand business needs and deliver reliable, highperforming solutions. This role supports the full Software Development Lifecycle (SDLC), including design, development, testing, implementation, maintenance, and production support of mainframe applications.

Responsibilities

  • Design, develop, modify, and maintain CICS programs in accordance with business requirements and documented standards
  • Participate in all phases of the SDLC, ensuring timely and highquality delivery
  • Collaborate effectively with peers, crossfunctional teams, and business partners
  • Analyze and resolve complex technical issues, delivering scalable and efficient solutions
  • Support and maintain applications in a production environment, including oncall rotation
  • Serve as a technical lead, architect, project lead, or principal developer, as needed
  • Mentor and guide lessexperienced developers
  • Contribute to system, component, and data architecture discussions
  • Identify opportunities to improve tools, processes, and efficiencies while minimizing production risk
  • Perform other related duties as assigned

Knowledge and Experience

  • Bachelor's degree in Computer Science, Information Systems, or equivalent education and experience
  • 5+ years of experience in z/OS mainframe development
  • Strong experience with CICS COBOL, JCL, IDz, ISPW, REXX, and TSO
  • Solid understanding of systems analysis, application design, development, testing, and integration
  • Strong analytical and problemsolving skills
  • Ability to communicate effectively with both technical and nontechnical audiences
  • Proven ability to work independently and collaboratively in a fastpaced environment
  • Selfmotivated, proactive, and resultsoriented
  • Performs well under pressure and within tight deadlines
  • Adaptable, approachable, and committed to continuous learning

Preferred Knowledge and Experience 

  • Experience with Batch COBOL, Java/Java plugins, Assembler, or C*
  • Mortgage industry and MSP platform experience
  • Familiarity with FM/MSP production job flows and processes
  • Experience with production support and release management

Technical Skills

  • Mainframe Technologies: CICS, COBOL for z/OS, IDz, JCL, REXX, Assembler (plus)
  • Data & Tools: VSAM, DB2, ISPW source and release management
  • IDEs & Interfaces: IDz, TSO/ISPF
  • Utilities: IDCAMS, FileAID, XPEDITER, QUIKJOB, Librarian, RDz (Rational Suite)
  • Productivity Tools: Microsoft Word, Excel, PowerPoint, Visio
  • AI Tools: Claude Code, Microsoft Copilot
----------Intercontinental Exchange, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to legally protected characteristics.Employment Type: FULL_TIME

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