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Mainframe Software Developer Jobs in Jacksonville, FL

Design, code, test, implement, maintain and support Systematics applications software that is ... Demonstrated ability to adapt to different mainframe/client environments and mainframe tool sets.

Field Engineer? Service Technician? Or do you want to start a career in this field? Are you tech ... Familiarity with large servers, mainframe computers, and imaging software. * A+ Certification ...

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Mainframe Software Developer information

See Jacksonville, FL salary details

$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:

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.

Engineer Sr Lead, Systematics

FIS

Jacksonville, FL • On-site

Full-time

Re-posted 24 days ago


FIS Global rating

7.4

Company rating: 7.4 out of 10

Based on 10 frontline employees who took The Breakroom Quiz

170th of 245 rated software companies


Job description

Job Description

About FIS

Are you curious, motivated, and forward-thinking? At FIS you'll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun.

About the team

LFI Systematics (SI) Leveraged Professional Services support for LFI Core Banking Clients that run the Systematics Suite of applications.

What you will be doing

  • Design, code, test, implement, maintain and support Systematics applications software that is delivered on time and within budget.

  • Work closely with customers, business analysts and team members to understand business requirements that drive analysis and design of quality technical solutions ensuring alignment with business and IT strategies and complying with FIS architectural standards.

What you bring

  • Demonstrated expert level knowledge of the FIS Systematics applications.

  • Demonstrated ability to design, code, test, and lead highly complex Systematics technical solutions.

  • Demonstrated ability to lead, mentor, and provide guidance to junior level technicians.

  • 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 demonstrated increasing of job responsibilities.

What we offer you

  • A multifaceted job with a high degree of responsibility and a broad spectrum of opportunities.

  • A broad range of professional education and personal development possibilities - FIS is your final career step!

  • A competitive salary and benefits.

  • A broad range of professional education and personal development opportunities.

  • Varied and challenging work to help you grow your technical skillset.

#LI-DS2


Privacy Statement

FIS is committed to protecting the privacy and security of all personal information that we process in order to provide services to our clients. For specific information on how FIS protects personal information online, please see the Online Privacy Notice.

EEOC Statement

FIS is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, marital status, genetic information, national origin, disability, veteran status, and other protected characteristics. The EEO is the Law poster is available here supplement document available here


For positions located in the US, the following conditions apply. If you are made a conditional offer of employment, you will be required to undergo a drug test. ADA Disclaimer: In developing this job description care was taken to include all competencies needed to successfully perform in this position. However, for Americans with Disabilities Act (ADA) purposes, the essential functions of the job may or may not have been described for purposes of ADA reasonable accommodation. All reasonable accommodation requests will be reviewed and evaluated on a case-by-case basis.

Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

#pridepass


What FIS Global employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


FIS logo

About FIS

Sourced by ZipRecruiter

FIS is a leader in technology and services that helps businesses and communities thrive by advancing commerce and the financial world. For over 50 years, FIS has continued to drive growth for clients around the world by creating tomorrow’s technology, solutions and services to modernize today’s businesses and customer experiences. By connecting merchants, banks and capital markets, we use our scale, apply our deep expertise and data-driven insights, innovate with purpose to solve for our clients’ future, and deliver experiences that are more simple, seamless and secure to advance the way the world pays, banks and invests. Headquartered in Jacksonville, Florida, FIS employs more than 55,000 people across 50+ countries, dedicated to helping our clients be ahead of what’s next. FIS offers more than 450 solutions and processes over $75b of transactions around the planet. FIS is a Fortune 500® company and is a member of Standard & Poor’s 500® Index.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Jacksonville , FL, US

Year founded

1968

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