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Citi Logo Citi · IT - Software Development

Senior Mainframe Application Analyst

United States, Jacksonville 87280.00 - 130920.00 USD / Year · Job Posted May 30, 2026
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Job Responsibility

  • Participate in feasibility studies, IT planning, time and cost estimation, and risk assessment to support the establishment and implementation of new or revised application systems aligned with business requirements
  • Lead and monitor all phases of the software development lifecycle — including analysis, design, construction, testing, and implementation — while providing ongoing operational and user support post-deployment
  • Develop, maintain, and enhance applications using mainframe technologies (COBOL, JCL, DB2) and customer communication management platforms (MessagePoint and Exstream), ensuring performance, reliability, and compliance with enterprise standards
  • Analyze complex system and business process issues using in-depth applications development knowledge
  • evaluate industry standards and recommend advanced programming solutions and architectural improvements
  • Design and implement security measures and conduct post-implementation analysis to validate system functionality, data integrity, and adherence to regulatory and policy requirements
  • Consult with business users, clients, and cross-functional technology teams to gather requirements, define operating standards, and resolve technical issues across application environments
  • Develop and maintain Java and/or Python-based solutions in UNIX environments, contributing to automation, integration, and modernization efforts alongside core mainframe delivery
  • Utilize SDLC tooling — including Jira, RDZ, and Bitbucket — to manage code versioning, project tracking, and collaborative delivery across development teams
  • Serve as a subject matter expert and trusted advisor to senior stakeholders
  • mentor and coach junior analysts to build team capability and uphold engineering best practices
  • Appropriately assess and escalate risk in alignment with applicable laws, regulations, and organizational policies, demonstrating sound ethical judgment and transparency in all business and technical decisions

Requirements

  • 4+ years of overall experience in applications development, systems analysis, and software programming within enterprise or financial services environments
  • 4+ years of hands-on mainframe development experience, including proficiency in COBOL, JCL, DB2, and associated mainframe tools (e.g., TSO/ISPF, VSAM, CICS)
  • 2+ years of experience with MessagePoint and OpenText Exstream content and composition platforms, including template development, variable data processing, and multi-channel output management
  • Hands-on experience with Java and/or Python development in UNIX/Linux environments, with familiarity in scripting, automation, or API-based integration
  • Hands-on SDLC experience utilizing tools such as Jira, RDZ, and Bitbucket for project tracking, code management, and collaborative development workflows
  • Demonstrated experience managing and delivering successful technology projects, including the ability to work under pressure and adapt to shifting requirements or deadlines
  • Working knowledge of consulting and project management methodologies, with the ability to translate business needs into technical solutions and operating standards
  • Strong analytical and evaluative judgment skills with the ability to assess complex technical and business problems and recommend sound, scalable solutions
  • Experience advising senior stakeholders and acting as a subject matter expert
  • ability to operate with limited supervision and exercise independent judgment
  • Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent professional experience

What we offer

  • medical, dental & vision coverage
  • 401(k)
  • life, accident, and disability insurance
  • wellness programs
  • paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays
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