Senior Mainframe Developer

Intercontinental Exchange · Jacksonville

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 Senior Software Engineer is a core contributor to the MSP development team, responsible for the design, development, and ongoing support of mainframe-based mortgage servicing solutions. This role leads technically on projects of appropriate scope, delivers quality COBOL/CICS solutions aligned with business requirements and architectural standards, and actively contributes to the growth and capability of the broader engineering team.

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.
Serves as technical lead, architect, or principal developer on projects of appropriate scope and complexity.
Provides and guides production support for in-production applications, including participation in the secondary on-call rotation.
Mentors and guides less experienced developers, contributing to team growth and knowledge transfer.
Participates in a secondary on-call schedule to support production operations outside of business hours.
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.
8+ 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 with technical and non-technical audiences.
Knowledge with AI-assisted development tools, particularly with Claude Code knowledge/ experience is considered a strong plus
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.

Technologies

COBOL for Z/OS, CICS, IDz, (C*, Assembler, JCL, REXX a plus).
VSAM/DB2 file structures, ISPW source code/release management
TSO/ISPF mainframe 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.

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