11 mainframe developer jobs at 7 companies in Jacksonville, FL
1mo
Save
Mark Applied
Hide
1mo
Senior Mainframe Developer
Jacksonville, Florida, United States
$114k-$171k/yrHybridFull Time
CitiNYSE: C: Providing global banking, investment, and wealth management services.
5+ YOE5+ years IBM mainframe development with COBOL, JCL, CICS and DB2; experience with Fileaid, Rexx, Changeman, GitHub, Expediter, TSO/ISPF, VSAM; 2+ years using AI tools (Devin AI, CoPilot); bachelor’s degree or equivalent; strong leadership and communication skills.
CitiNYSE: C: Global diversified financial services holding.
5+ YOE5+ years IBM mainframe development with COBOL for batch and online programs; experience with JCL, CICS, DB2, VSAM, TSO/ISPF, Changeman, Fileaid, Rexx, Expediter, GitHub; 2+ years using AI tools (Devin AI, CoPilot); strong analysis, leadership, and project skills.
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOEExperience supporting/enhancing IBM z/OS business applications using Cobol, JCL, DB2, and IMS; analyzing requirements, coding, testing, debugging, and incident support.
Intercontinental ExchangeNYSE: ICE: Operates global financial exchanges, clearing houses, and mortgage technology.
5+ YOEBachelor's degree or equivalent and 5+ years z/OS mainframe development (COBOL/CICS/JCL/IDz/ISPW/REXX/TSO); strong analytical, communication, leadership, and problem-solving skills; production support and mentoring experience.
COBOL for Z/OS, CICS, JCL, IDz, ISPW, REXX, TSO, Java, Assembler, C*, VSAM, DB2, ISPF, IDCAMS, FILEAID, XPEDITER, QUIKJOB, LIBRARIAN, RDZ, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Visio
Phoenix or Plano or Charlotte or Richmond or Jacksonville or Pennington or Chicago or Research Triangle Park or Dallas or Newark or Virginia or Florida
HybridFull Time
KyndrylNYSE: KD: Manages and modernizes mission-critical IT infrastructure systems.
Hands-on RACF administration on IBM z/OS, SMF analysis, security reporting, least-privilege access controls for CICS/DB2/IMS/MQ, incident investigation, compliance support (SOX/PCI/HIPAA), and integration with IAM/SSO/MFA.
Dallas or Plano or Charlotte or Richmond or Jacksonville or Pennington or Chicago or Rye Brook or Newark or Phoenix or Houston or Virginia or West Virginia or Florida
HybridFull Time
KyndrylNYSE: KD: Manages and modernizes mission-critical IT infrastructure systems.
Expertise with IBM z/VM and Linux on IBM Z (RHEL/SUSE/Ubuntu), virtual machine provisioning and lifecycle management, HMC and RACF familiarity, scripting (REXX, Shell, Python), troubleshooting and L2/L3 production support.
Intercontinental ExchangeNYSE: ICE: Operates global financial exchanges, clearing houses, and mortgage platforms.
8+ YOE8+ years z/OS mainframe development experience (COBOL/CICS), bachelor\u0002s in CS/IS or equivalent, ability to design/develop/maintain mainframe mortgage servicing solutions, mentor others, and participate in production on-call.
COBOL for Z/OS, CICS, JCL, IDz, ISPW, REXX, TSO, Java, Assembler, C*, VSAM, DB2, ISPF, IDCAMS, FILEAID, XPEDITER, QUIKJOB, LIBRARIAN, RDZ, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Visio, Claude Code
Intercontinental ExchangeNYSE: ICE: Operates global financial exchanges, clearing houses, and mortgage technology.
8+ YOEBachelor's in CS/IS or equivalent, 8+ years mainframe z/OS development (COBOL, CICS, JCL, IDz, ISPW, REXX, TSO), production support/on-call, leadership and mentoring, familiarity with DB2/VSAM and mainframe utilities; Claude Code experience a plus.
COBOL for Z/OS, CICS, IDz, JCL, ISPW, REXX, TSO/ISPF, z/OS, Java, Assembler, C*, VSAM, DB2, IDCAMS, FILEAID, XPEDITER, QUIKJOB, LIBRARIAN, RDZ - Rational Suite, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Visio, Claude Code
Intercontinental ExchangeNYSE: ICE: Operates global financial exchanges, clearing houses, and mortgage platforms.
5+ YOE5+ years z/OS mainframe development (Batch/CICS COBOL, JCL, IDz, ISPW, REXX, TSO); bachelor’s in CS/Information Systems or equivalent; strong analytical, leadership, communication, and problem-solving skills; on-call production support experience.
COBOL for Z/OS, CICS, JCL, IDz, ISPW, REXX, TSO, ISPF, Java, Assembler, C*, VSAM, DB2, IDCAMS, FILEAID, XPEDITER, QUIKJOB, LIBRARIAN, RDZ, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Visio
Little Rock or Atlanta or Jacksonville or Milwaukee or United States
RemoteFull Time
FISNYSE: FIS: Provides technology solutions for merchants, banks, and capital markets
Expert-level knowledge of FIS Systematics applications; designing, coding, testing, implementing, and supporting complex Systematics solutions; leading and mentoring junior technicians; adaptable to mainframe environments.
Lake City or Daytona Beach or Daytona Beach or Daytona Beach or Daytona Beach or Daytona Beach or Gainesville or Gainesville or Gainesville or Gainesville or Gainesville or Gainesville or Gainesville or Gainesville or Gainesville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Jacksonville or Lake City or Lake City or Lake City
$2k/bi-wkOnsiteFull Time
State of Florida: Providing state government services and administrative public programs.
1+ YOESupervising eligibility staff; minimum one year ESI plus management experience; background fingerprint and criminal history check; knowledge of social services programs, mainframe systems, PC skills, training and corrective action development.