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Senior Mainframe Developer Jobs in Florida (NOW HIRING)

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 ...

3B Staffing LLC

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 ...

3B Staffing LLC

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 ...

DTCC

Senior Application Support Engineer

Tampa, FL · On-site

The Impact You Will Have in This Role As a Senior Application Support Engineer , you will support ... You will work across a broad technology stack (mainframe, distributed systems, cloud, databases ...

RD Global

RPA Lead Developer (UiPath)

Fort Lauderdale, FL · On-site

$80 - $120/hr

Strong experience in automating Front-office and Back-office process areas involving Web, Mainframe ... Sr. Developer or Lead Developer * Preferred to have UiPath Certification * Experience in ...

DTCC

Infrastructure Engineer [2027 EDGE Program]

Tampa, FL · On-site

$101K - $133K/yr

Additionally, the program features regular networking sessions that facilitate exposure to senior ... DevOps, database technologies, mainframe, or technology operations. * Interest in financial ...

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Senior Mainframe Developer information

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How much do senior mainframe developer jobs pay per hour?

As of Sep 6, 2026, the average hourly pay for senior mainframe developer in Florida is $43.08, according to ZipRecruiter salary data. Most workers in this role earn between $40.43 and $47.07 per hour, depending on experience, location, and employer.

What is a senior mainframe developer?

Senior Mainframe Developers are experienced professionals who design, develop, and maintain mainframe systems—large-scale computers used by organizations for critical applications, bulk data processing, and enterprise resource planning. They are proficient in languages like COBOL, JCL, and Assembler, and often work with databases and transaction processing systems. Their responsibilities include troubleshooting system issues, optimizing performance, mentoring junior developers, and ensuring the reliability and security of mainframe operations.

What are some common challenges faced by senior mainframe developers when integrating legacy systems with modern technologies?

Senior Mainframe Developers often encounter challenges when integrating legacy mainframe systems with newer technologies such as cloud platforms, APIs, or microservices. These challenges include ensuring data consistency, maintaining system security, and minimizing downtime during migrations. Collaboration with cross-functional teams, such as infrastructure engineers and application developers, is key to developing seamless integration solutions. Staying up-to-date with modernization tools and best practices can help address these complexities and support the organization's digital transformation goals.

What are the key skills and qualifications needed to thrive as a senior mainframe developer, and why are they important?

To thrive as a Senior Mainframe Developer, you need deep expertise in mainframe programming languages (like COBOL, JCL, and PL/I), systems analysis, and a strong understanding of legacy application architectures, typically supported by a degree in computer science or related experience. Familiarity with tools such as IBM z/OS, DB2, CICS, and version control systems is essential, along with relevant certifications like IBM Certified System Programmer. Excellent problem-solving, communication, and leadership skills help you collaborate effectively and mentor junior developers. These skills are crucial for maintaining mission-critical systems, ensuring reliability, and guiding modernization efforts in complex enterprise environments.

What are the most commonly searched types of Mainframe Developer jobs in Florida?

The most popular types of Mainframe Developer jobs in Florida are:

What are popular job titles related to Senior Mainframe Developer jobs in Florida?

For Senior Mainframe Developer jobs in Florida, the most frequently searched job titles are:

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The top searched job categories for Senior Mainframe Developer jobs in Florida are:

What cities in Florida are hiring for Senior Mainframe Developer jobs?

Cities in Florida with the most Senior Mainframe Developer job openings:

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

Senior Mainframe Developer jobs near you
Infographic showing various Senior Mainframe Developer job openings in Florida as of August 2026, with employment types broken down into 88% Full Time, 2% Part Time, and 10% Contract. Highlights an 80% Physical, 5% Hybrid, and 15% Remote job distribution, with an average salary of $89,612 per year, or $43.1 per hour.

Java Developer

Avani Technology Solutions, Inc.

Orlando, FL • On-site

$47.50 - $61.50/hr

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

ROLE: Sr. Java Developer
Location: Orlando, FL
Duration: 6+months (24 Month Project)
Industry: GPS - Practice
W2 only, no C2C
LOCAL CANDIDATES HIGHLY PREFERRED.
Requirements
  • Five (+) years J2EE framework and architecture expertise (Java 6, EJB, SERVLETS/APPLETS, JDBC & JMS)
  • Five (+) transactional database and SQL expertise (DB2, Oracle or SQL Server)
  • ORM tool experience (MyBatis, Entity Framework, Hibernate)
  • Object-oriented programming (OOP) expertise
  • Eclipse, IBM RAD or similar IDE proficiency
  • SOA architecture and web services internals experience
  • Design experience working with n-tier architectures (UI, Business Logic Layer, Data Access Layer)
  • Software implementation best practices knowledge
  • Version control systems knowledge (SVN or CVS or Clear Case)
  • Preferred Skills - Experience reverse engineering from one technology to another on a large scale HIGHLY PREFERRED
  • z/OS, TSO, JCL or other mainframe skills for use in legacy conversion reverse engineering
  • Ability to adapt quickly to an existing, complex environment.
  • Ability to quickly learn new concepts and software as necessary
  • Self-motivated, independent, detail oriented, responsible team-player
  • Exceptional relationship management skills.
  • Strong communication skills, both written and oral
  • Passionate about building high-quality systems with software implementation best practices and mentoring
  • Ability to understand methodologies and tools used for delivery and a passion to follow and improve processes

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