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Senior Mainframe Programmer Jobs in Florida (NOW HIRING)

Hirekeyz Inc

Senior Mainframe Developer

Tampa, FL · On-site

Job Title: Senior Mainframe Developer Location : Tampa, FL (5 Days Onsite) Job Type: W-2/Full Time Exp-10 Years Role Overview We are seeking a highly experienced Mainframe Developer with deep ...

Citigroup, Inc.

Senior Mainframe Developer

Jacksonville, FL · On-site

$113K - $170K/yr

The Senior Mainframe Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The ...

Ubertal Inc

Senior Power BI Developer

Tallahassee, FL · On-site

Senior Power BI Developer Location: Tallahassee, FL (On-site, 5 days/week) Duration: ~13 months ... Convert WebFOCUS and Mainframe FOCUS queries to T-SQL * Create database views and stored procedures ...

Dtcc

Lead Platform Engineer*

Pensacola, FL · Hybrid

$96K - $127K/yr

Job Title Mainframe Engineer At DTCC, we're always looking for exceptional talent to join our team ... Senior Associate Level- Candidates must be 2-3 years post-college graduates with at least 1-2 year ...

DSNSearch

z/OS Systems Programmer

Orlando, FL

z/OS SENIOR LEVEL SYSTEMS PROGRAMMER-ARCHITECT Z/OS**MAINFRAME**SYSTEMS PROGRAMMER** ANNUAL BONUS PROGRAM! HYBRID WORK/MUST WORK ON SITE 2X WEEK * SENIOR LEVEL Z/OS ARCHITECT EXPERT WITH Z/OS SYSTEMS ...

DSNSearch

z/OS Systems Programmer

Orlando, FL · On-site

z/OS SENIOR LEVEL SYSTEMS PROGRAMMER-ARCHITECT Z/OS MAINFRAME SYSTEMS PROGRAMMER ANNUAL BONUS PROGRAM! HYBRID WORK/MUST WORK ON SITE 2X WEEK * SENIOR LEVEL Z/OS ARCHITECT EXPERTWITH Z/OS SYSTEMS ...

Ubertal Inc

Senior Business Analyst

Tallahassee, FL · On-site

$87K - $113K/yr

Senior Business Analyst Location: Tallahassee, FL Duration: 15 months Employment Type: Contract We ... Knowledge of mainframe programming languages and systems * Experience with data conversion and data ...

JS Consulting

Senior Software Developer - W2 ONLY

Miami, FL · On-site

$52.25 - $68.75/hr

Senior .Net Developer Location: Maimi, FL (Need Local) Duration: 12+Months Interview: WebEx Client ... The consultants will be responsible for transitioning legacy systems (PEN, MS Access, Mainframe ...

Ubertal Inc

Senior Business Analyst

Tallahassee, FL · On-site

$87K - $113K/yr

Senior Business Analyst Location: Tallahassee, FL Duration: Approx. 16-month contract (02/19/26 ... Knowledge of mainframe programming languages, computer systems, and supporting software. * Skill in ...

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Senior Mainframe Programmer information

What is the difference between Senior Mainframe Programmer vs Mainframe Developer?

AspectSenior Mainframe ProgrammerMainframe Developer
CredentialsTypically requires a mainframe programming certification and several years of experienceOften requires similar certifications and experience, focusing on coding and development
Work EnvironmentWorks primarily on legacy mainframe systems within financial, insurance, or government sectorsDevelops and maintains mainframe applications, often in similar industries
Employer & Industry UsageCommonly employed by large corporations with mainframe infrastructureUsed interchangeably with mainframe programmer, focusing on application development

The main difference between a Senior Mainframe Programmer and a Mainframe Developer is primarily experience level and scope. Senior Mainframe Programmers often have more responsibilities, including overseeing projects and mentoring junior staff, while Mainframe Developers focus on coding and application creation. Both roles require similar credentials and are vital in industries relying on legacy mainframe systems.

What are the most commonly searched types of Mainframe Programmer jobs in Florida? The most popular types of Mainframe Programmer jobs in Florida are:
What are popular job titles related to Senior Mainframe Programmer jobs in Florida? For Senior Mainframe Programmer jobs in Florida, the most frequently searched job titles are:
What job categories do people searching Senior Mainframe Programmer jobs in Florida look for? The top searched job categories for Senior Mainframe Programmer jobs in Florida are:
What cities in Florida are hiring for Senior Mainframe Programmer jobs? Cities in Florida with the most Senior Mainframe Programmer job openings:
Senior Mainframe Programmer jobs near you
Infographic showing various Senior Mainframe Programmer job openings in Florida as of June 2026, with employment types broken down into 73% Full Time, and 27% Contract. Highlights an 77% In-person, 18% Hybrid, and 5% Remote job distribution.

Senior Mainframe Developer

Hirekeyz Inc

Tampa, FL • On-site

Contractor

Posted 20 days ago

Job description

Job Title: Senior Mainframe Developer

Location : Tampa, FL (5 Days Onsite)

Job Type: W-2/Full Time

Exp-10 Years

Role Overview

We are seeking a highly experienced Mainframe Developer with deep expertise in COBOL, CICS, DB2, and JCL to support and enhance mission-critical applications. The candidate will play a key role in development, maintenance, production support, and modernization initiatives in a high-volume enterprise environment.

Key Responsibilities

  • Design, develop, test, and maintain mainframe applications using COBOL, CICS, DB2, and JCL
  • Analyze business requirements and translate them into technical specifications
  • Perform impact analysis and support system enhancements and upgrades
  • Develop and optimize DB2 SQL queries, stored procedures, and performance tuning
  • Handle production support, incident resolution, and root cause analysis
  • Work on batch and online (CICS) processing systems
  • Prepare functional and technical design documents
  • Collaborate with cross-functional teams including QA, business analysts, and infrastructure teams
  • Participate in code reviews, testing (unit, integration, UAT), and deployment activities
  • Ensure adherence to coding standards, security policies, and SLA commitments

Required Technical Skills

  • Strong hands-on experience in:
    • COBOL (Structured & Object-Oriented)
    • CICS (Customer Information Control System)
    • DB2 (SQL, Stored Procedures, Performance Tuning)
    • JCL (Job Control Language)
  • Experience with:
    • VSAM, IMS (optional but preferred)
    • Mainframe utilities (SORT, IDCAMS, IEBGENER)
    • Debugging tools like Expeditor, Abend-AID
  • Knowledge of:
    • Batch processing and scheduling tools (e.g., Control-M, CA-7)
    • Version control tools (Endevor, Changeman)
  • Familiarity with mainframe modernization or API integration is a plus

Soft Skills

  • Strong analytical and problem-solving skills
  • Excellent communication and stakeholder management
  • Ability to work in a fast-paced production support environment
  • Team player with mentoring capabilities

Preferred Qualifications

  • Bachelor’s degree in Computer Science, Information Technology, or related field
  • Experience in banking, financial services, or insurance domains
  • Exposure to Agile/Scrum methodologies
  • Experience in modernization initiatives (Mainframe to distributed/cloud)

Nice to Have

  • Knowledge of REST APIs, Microservices integration with mainframe
  • Experience with DevOps tools and CI/CD pipelines for mainframe
  • Exposure to tools like z/OS Connect, IBM MQ