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Senior Mainframe Developer Jobs in Florida (NOW HIRING)

StradIT

Mainframe Capacity Planning Engineer - US

Tampa, FL · On-site

$46.25 - $59.50/hr

Jersey City NJ, Tampa FL, Dallas TX & Boston MA Position Summary The Senior Capacity Planning Engineer for Mainframe works directly with a team responsible for monitoring, analyzing, and reporting ...

DSNSearch

MAINFRAME NETWORK SYSTEMS PROGRAMMER

Orlando, FL

$51.25 - $65.25/hr

MAINFRAME NETWORK SYSTEMS ENGINEER (MID TO SENIOR LEAD LEVEL) MAINFRAME**TCP-IP**VTAM**Z/OS HYBRID~MUST WORK ON SITE AT LEAST 2 DAYS A WEEK AND LIVE NEAR LOCATION BONUS OPPORTUNITY!! * 10+ YEARS ...

USAA

Mainframe CICS Systems Programmer Senior

Tampa, FL · On-site +1

$52 - $66.25/hr

The Opportunity USAA Mainframe Infrastructure team is looking for Senior level Mainframe CICS ... Developer Support: Providing technical support to application development teams, which includes ...

USAA

Mainframe CICS Systems Programmer Senior

Tampa, FL · On-site +1

$52 - $66.25/hr

The Opportunity USAA Mainframe Infrastructure team is looking for Senior level Mainframe CICS ... Developer Support: Providing technical support to application development teams, which includes ...

USAA

Mainframe CICS Systems Programmer Senior

Tampa, FL · On-site +1

$52 - $66.25/hr

The Opportunity USAA Mainframe Infrastructure team is looking for Senior level Mainframe CICS ... Developer Support: Providing technical support to application development teams, which includes ...

Accenture

Mainframe Specialist

Miami, FL · On-site

$70K - $196K/yr

Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ... Collaborate with senior leadership to secure executive sponsorship and organizational buy-in for ...

Accenture

Mainframe Specialist

Tampa, FL · On-site

$70K - $196K/yr

Partner with cross-functional teams-architects, developers, QA, and business analysts-to gather ... Collaborate with senior leadership to secure executive sponsorship and organizational buy-in for ...

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 ...

Tech Tammina LLC

Sr Backend Java Developer

Tampa, FL · On-site

$113K - $147K/yr

Role: Sr Backend Java Developer Location: Tampa, FL Duration: 6 months C2H Rate: Market Need only ... Modernization - re-write mainframe legacy applications into modern Java-based microservices to ...

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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?

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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.

Mainframe Capacity Planning Engineer - US

StradIT

Tampa, FL • On-site

$46.25 - $59.50/hr

Full-time

Posted 12 days ago

Job description

Role: Mainframe Capacity Planning Engineer

Experience: 5 to 10 Years

Employment: W2 (GC and USC only)

Locations: Jersey City NJ, Tampa FL, Dallas TX & Boston MA

Position Summary


The Senior Capacity Planning Engineer for Mainframe works directly with a team responsible for monitoring, analyzing, and reporting mainframe processing capacity at DTCC. The successful candidate will collect, process and validate system resource data along with business volume data for future analysis using sound data science principles. One should have a basic understanding of Mainframe while knowledgeable of sources and tools used to collect, validate, then process required system data. One should have a solid background in descriptive statistics to extrapolate insight from large quantities of raw data using SAS software on the mainframe and in distributed environments.

Specific Responsibilities

Mainframe capacity planning

  • Run and validate the Data Collection and Reporting process using scheduling software.
  • Design basic reports using SAS
  • Build and Edit JCL in ISPF
  • Creating / Updating policies, job aids and other documentation

MICS/MXG support and maintenance

  • Learn MICS/MXG Database Architecture
  • Diagnose MICS related errors.
  • Able to execute and validate MICS administrative tasks to maintain proper maintenance.

Data analysis - Descriptive Statistics

  • Basic methods to Summarize Data
  • Display data in an organized manner.
  • Able to identify, describe patterns and relationships.

Business volumes and other reporting

  • Collection and reporting of business volume data from varied sources.
  • Risk assessments of extreme market conditions for selected business streams
  • Produce/update a Business Process Requirements document for selected business streams.

Management / Regulatory / Audit

  • Organize and store Capacity Planning artifacts in their proper location for future retrieval.
  • Ad hoc report development for senior business and management forums

 Mitigates risk by following established procedures and monitoring controls, spotting key errors and demonstrating strong ethical behavior.

Qualifications

  • Minimum of 5 years of related experience
  • Bachelor's degree in a mathematics / statistics discipline preferred or equivalent work experience

Specific Skills & Technologies

  • SAS experience required.
  • Understanding of mainframe technology and components
  • MICS/MXG experience essential.
  • Familiarity with mainframe capacity / performance data (SMF, RMF, CICS, DB2, MQ)
  • MS Office skills, in particular intermediate PowerPoint, and Excel skills
  • Excellent analytical skills including data exploration, analysis, and production of models.
  • Solid background with Descriptive Statistics
  • Inferential Statistics are a plus.

Apply