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Java Mainframe Developer Jobs in Florida (NOW HIRING)

Seven Seven Software

Mainframe Developer

Tampa, FL · On-site

$46.25 - $59.50/hr

In this role as Software Engineer, you will be partnering with Technology, Operations, Product and ... Experience in Java, JSON, JMS, Kafka, API REST services, Spring Boot, WOLA is a plus * Experience ...

Seven Seven Software

Mainframe Developer

Tampa, FL · On-site

$46.25 - $59.50/hr

Proficiency in one or more modern programming languages * Understanding of software skills such as ... Experience in Java, JSON, JMS, Kafka, API REST services, Spring Boot, WOLA is a plus * Experience ...

Avani Technology Solutions, Inc.

Java Developer

Orlando, FL · On-site

$47.50 - $61.50/hr

ROLE: Sr. Java Developer Location: Orlando, FL Duration: 6+months (24 Month Project) Industry: GPS ... or other mainframe skills for use in legacy conversion reverse engineering * Ability to adapt ...

Tech Tammina LLC

Sr Backend Java Developer

Tampa, FL · On-site

$113.90K - $147.90K/yr

Modernization - re-write mainframe legacy applications into modern Java-based microservices to ... up of mostly Java developers. * Will be moving everything to AWS at one point next year so ...

Donato Technologies, Inc

Mainframe Tester

Tampa, FL · On-site

$50 - $52/hr

Job Title: Mainframe Tester Location : Tampa, FL ( need Local Profile only) Position ID: TBD ... Java programming and experience with test automation frameworks (e.g., Selenium, TestNG, JUnit)

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How much do java mainframe developer jobs pay per hour?

As of May 30, 2026, the average hourly pay for java mainframe developer in Florida is $39.89, according to ZipRecruiter salary data. Most workers in this role earn between $35.19 and $45.29 per hour, depending on experience, location, and employer.

What is a Java Mainframe Developer job?

A Java Mainframe Developer is responsible for developing, maintaining, and optimizing applications that run on mainframe systems using Java and related technologies. They often work with legacy systems, integrating Java-based applications with COBOL, DB2, CICS, or other mainframe technologies. Their role includes enhancing system performance, troubleshooting issues, and ensuring seamless communication between modern and legacy systems. They may also work on migration projects, moving applications from mainframes to cloud or distributed environments.

What are the key skills and qualifications needed to thrive in the Java Mainframe Developer position, and why are they important?

To thrive as a Java Mainframe Developer, you need a strong background in Java programming, mainframe technologies (such as COBOL, JCL, and CICS), and experience with database systems like DB2. Familiarity with version control tools, middleware, and frameworks used for modernization—plus certifications like Oracle Java Programmer or IBM Mainframe—are often essential. Strong problem-solving skills, effective communication, and the ability to collaborate with cross-functional teams set standout candidates apart. These skills ensure successful integration of modern applications with legacy systems, seamless project delivery, and efficient teamwork in complex enterprise environments.

What are some typical daily responsibilities for a Java Mainframe Developer?

A Java Mainframe Developer typically spends their day designing and coding Java applications that interface with mainframe systems, often working with legacy code in languages like COBOL. They are responsible for troubleshooting and debugging issues, performing system integrations, and ensuring data flows correctly between distributed systems and the mainframe. Collaboration with business analysts, QA testers, and infrastructure teams is common to gather requirements and ensure smooth deployments. Additionally, they may participate in code reviews, document technical solutions, and support ongoing modernization efforts. This diverse set of tasks creates a dynamic work environment with opportunities to learn and grow technically.
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Java Mainframe Developer jobs near you

Mainframe Developer

Seven Seven Software

Tampa, FL • On-site

$46.25 - $59.50/hr

Full-time

Posted 12 days ago

Job description

In this role as Software Engineer, you will be partnering with Technology, Operations, Product and Production Management teams to deliver technical solutions to meet business objectives, troubleshoot defects and remediate production issues for the HV Payments Dup Check implementation on the Wires application. You will be responsible for the analysis, design, testing, integration, implementation and maintenance of critical projects and enhancements to the USD Wires application.
Required Skills
  • Advanced knowledge of application, data, and infrastructure architecture disciplines
  • Understanding of architecture and design across all systems
  • Working proficiency in developmental toolsets
  • Knowledge of industry-wide technology trends and best practices
  • Ability to work in large, collaborative teams to achieve organizational goals
  • Passionate about building an innovative culture
  • Proficiency in one or more modern programming languages
  • Understanding of software skills such as business analysis, development, maintenance, and software improvement
  • 10+ years' Mainframe Application / COBOL development experience
  • 7+ years' experience in CICS/DB2/VSAM/MQ application development
  • Experience required in debug tools like Expeditor
  • Experience with File Aid, Stored Procedures, Endevor, CA-7, NDM, MFTS, s-FTP, XML, CLIST, REXX is a plus
  • Experience in Java, JSON, JMS, Kafka, API REST services, Spring Boot, WOLA is a plus
  • Experience in application development using financial messaging Using SWIFT MT, ISO 20022 pain, pacs, camt message formats is a plus

Job Requirements

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