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Mainframes Developer Jobs in Jacksonville, FL (NOW HIRING)

FIS

Engineer Sr Lead, Systematics

Jacksonville, FL · On-site

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 ...

NCR Voyix

Field Service Technician I

Jacksonville, FL · On-site

$19 - $20.83/hr

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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All JobsMainframes Developer JobsMainframes Developer Jobs in Jacksonville, FL

Mainframes Developer information

See Jacksonville, FL salary details

$44.5K

$103.6K

$153.8K

How much do mainframes developer jobs pay per year?

As of Aug 20, 2026, the average yearly pay for mainframes developer in Jacksonville, FL is $103,632.00, according to ZipRecruiter salary data. Most workers in this role earn between $83,400.00 and $120,500.00 per year, depending on experience, location, and employer.

What is the difference between Mainframes Developer vs Mainframes Analyst?

AspectMainframes DeveloperMainframes Analyst
Required CredentialsTypically a degree in Computer Science or related field; certifications like IBM Certified SpecialistSimilar credentials; often holds certifications in mainframe systems and analysis
Work EnvironmentDevelops, codes, and tests mainframe applications in a software development settingAnalyzes existing mainframe systems, gathers requirements, and supports system improvements
Employer & Industry UsageUsed by banks, insurance companies, and large enterprises for application developmentEmployed in similar industries for system analysis, troubleshooting, and process optimization

While both roles require knowledge of mainframe systems and similar credentials, Mainframes Developers focus on creating and maintaining mainframe applications, whereas Mainframes Analysts analyze existing systems to improve performance and efficiency. Both roles are vital in large enterprise IT environments.

Is a mainframes developer a good career?

A mainframes developer is a specialized IT professional who maintains and develops applications on mainframe systems, which are used by large organizations for critical data processing. 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 may have limited growth compared to emerging technologies.

Is a mainframes developer still in demand?

Mainframes developers are still in demand in industries such as finance, government, and healthcare that rely on legacy systems. They typically work with COBOL, JCL, and mainframe environments, and demand persists due to the ongoing need to maintain and upgrade existing mainframe applications. However, the number of new positions is limited compared to emerging technologies, and skills in mainframe modernization are increasingly valued.

What does a mainframes developer do?

A mainframes developer designs, codes, tests, and maintains applications running on mainframe computers, often using languages like COBOL, PL/I, or Assembler. They ensure the stability, security, and efficiency of large-scale enterprise systems, frequently working with legacy code and mainframe-specific tools in a structured environment.

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

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

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

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

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

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

Mainframes Developer jobs near you
Infographic showing various Mainframes Developer job openings in Jacksonville, FL as of August 2026, with employment types broken down into 81% Full Time, 5% Part Time, and 14% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $103,632 per year, or $49.8 per hour.

Engineer II

Intercontinental Exchange Holdings, Inc.

Jacksonville, FL • On-site

Full-time

Re-posted 28 days ago

Job description

Overview

Job Purpose

The MSP development community is the heart of MSP Mortgage Technology. Our focus is to enhance, maintain, and support both internal and client-facing MSP functionality through efficiencies, and associated processes that drive improvements which grow, protect and preserve the integrity of MSP for our clients.

The MSP development teams work closely with internal support groups, business analysts, across teams/members to understand business requirements that foster the analysis, design, and implementation of quality technical Mortgage solutions. These solutions must be aligned with business and IT strategies that comply with the organization's architectural standards. Involvement includes full (SDLC) architecture including design, coding, testing, implementation, maintenance, and support of applications software delivered on time and within budget. Responsibilities may also include participation in component and data architecture design with a solid understanding of systems analysis, design, development, quality assurance and integration methodologies.

Responsibilities

  • Interpret, write new, and/or modify existing COBOL Batch and CICS programs timely and efficiently according to business requirements and documented standards.
  • Familiarity with in-house source-code tools, development tools, development, testing, and implementation processes and procedures.
  • Able to collaborate with peers, teams, and departments successfully and respectfully.
  • Able to research, analyze, strategize, formulate, problem solve, and implement coding solutions within expected timelines.
  • May serve as technical lead, architect, project lead or principal developer.
  • May provide or guide provision of technical support to applications currently in production.
  • May mentor or guide work of less experienced programming and development staff.
  • Secondary Production support in on-call rotation.
  • Perform other related duties as assigned.

 

Knowledge and Experience

  • Bachelor's degree in computer science, Information Systems, or the equivalent combination of education, training, or work experience.
  • 5+ years  z/OS mainframe application development technologies such as Batch/CICS COBOL, JCL, IDz, ISPW, REXX, TSO; Java/Java plug-ins, Assembler, C* are a plus.
  • Excellent analytical, decision-making, and problem-solving skills - ability to foresee problems, identify/implement solutions that are reliable, scalable, and efficient where applicable.
  • Excellent leadership skills (defined as the ability to influence or induce others in a direction, course, action, or opinion to produce positive results for the organization or a client).
  • Ability to communicate well to technical and non-technical audiences.
  • Results oriented, business focused, and successful at interfacing across multiple organizational units.
  • Self-motivated, proactive, and able to work independently with little guidance or formal training.
  • Ability to identify opportunities to create, improve or enhance tools and processes to improve productivity and help minimize Production risk.
  • Performs well under pressure/time constraints.
  • Adaptable, Approachable, able to give/take direction.
  • Continual learner.
  • Mortgage/MSP knowledge and understanding of FM a plus.
  • Familiarity with FM/MSP production job flows and processes a plus.
  • Languages:
    • COBOL for Z/OS, CICS;   IDz, (C*, Assembler, JCL, REXX a plus).
    • VSAM/DB2 file structures, ISPW source code/release management
    • IDZ, TSO/ISPF mainframe IDE's interfaces
    • Utilities (IDCAMS, FILEAID, XPEDITER, QUIKJOB) , LIBRARIAN, RDZ - Rational Suite)
    • MS Office (WORD, EXCEL, PowerPoint, Visio)
----------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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