Software Engineer II (Mainframe Data Conversion)

Overview Job Purpose The Software Engineer is responsible for the technical development and implementation of data conversion programs as part of customer loan acquisition projects. This role owns the technical execution of each conversion, from initial program design and development through unit testing, system integration, and go-live support. The Software Engineer works closely with Business Analysts, consultants, and managers, and serves as the primary development lead, translating detailed mapping specifications into accurate, efficient COBOL/JCL programs that convert source data correctly into MSP. This role requires strong technical expertise, structured problem-solving, and the ability to deliver reliable code in ambiguous and fast-paced project environments. The Software Engineer is also responsible for running mainframe jobs as needed, ensuring the results are accurate, and delivering the data to our clients. The Software Engineer leads and owns the technical development and execution of acquisition data conversion programs. This role is responsible for ensuring that conversion code is accurate, efficient, and produces data that is complete and correct within MSP and related systems. This is a hands-on, outcome-driven development role. Success requires the ability to write reliable COBOL programs from complex mapping specifications, debug issues methodically, determine what the problem is not, and arrive at sound technical solutions through evidence, testing, and structured reasoning. The role operates in fast-paced project environments where ambiguity is common and technical precision is essential. Responsibilities Technical Development & DeliveryDesign, develop, and unit test mainframe COBOL programs and JCL for assigned acquisition data conversion projectsOwn technical outcomes and code accuracy for all assigned conversion programsComplete development work within established project timelines and proactively escalate technical risks or blockersManage and prioritize development workload across multiple concurrent conversion projects, adjusting priorities as demands changeProgram Design, Mapping Implementation & Conversion DevelopmentAnalyze Business Analyst mapping specifications to understand conversion logic, data transformation rules, and target MSP requirementsTranslate complex mapping specifications and business rules into efficient, maintainable COBOL programs and JCL proceduresIdentify technical gaps, and ambiguities in mapping specifications and raise them with Business Analysts for resolutionPartner with Business Analysts to clarify conversion logic and validate that it aligns with business intentTesting, Debugging & Issue ResolutionConduct thorough unit testing of developed programs to validate data completeness, accuracy, and functional correctnessAnalyze test results, file reconciliations, and output discrepancies to identify root causeIndependently debug conversion programs using structured diagnostic techniques and hypothesis-driven investigationDiagnose whether issues originate from program logic, JCL configuration, source data interpretation, transformation processes, or system behaviorVerify resolutions through regression testing and documented validation in coordination with the Business AnalystCollaboration with Business Analysts & StakeholdersWork directly with Business Analysts to review mapping specifications, clarify technical requirements, and align on conversion approach and deliveryCommunicate technical constraints, risks, and findings clearly to Business Analysts and project managersSupport Business Analysts and clients during testing and implementation phases by providing rapid investigation and resolution of technical issuesProvide timely, thorough follow-up on technical findings and issue status to project team membersTeam Collaboration & CoordinationWork closely with Business Analysts, consultants, and project managers to maintain development momentum and resolve technical blockersCoordinate development handoffs between analysis, coding, and testing activities to ensure continuityProvide clear technical guidance and code documentation to support project team understanding and knowledge transferProcess & Continuous ImprovementIdentify recurring technical or conversion programming issues and contribute to reusable code libraries and process improvementsParticipate in the development and maintenance of departmental coding standards, documentation, and technical runbooksIdentify technical issues that may affect multiple projects or clients and collaborate with the team on systemic resolution approaches Knowledge And Experience Bachelor’s degree in Computer Science, Information Systems, or a related field; equivalent technical experience will be considered4+ years of experience in mainframe development, mortgage servicing technology, or data conversion programming rolesAcquisition and/or system conversion development experienceWorking knowledge of MSP and mortgage servicing data structures and processingStrong understanding of how data is extracted, transformed, and loaded between disparate source systems and target platforms at the program levelRequired technical skills: COBOL, JCL, VSAM, IBM z/OS mainframe environmentPreferred technical skills: ISPF/SDSF, File-AID, Endeavor or ChangeMan, MQ Series, DB2 (beneficial but not required)Strong technical problem-solving and debugging skills, with the ability to diagnose complex conversion issues where the root cause is not immediately apparentSkilled in forming hypotheses, testing assumptions through code and data analysis, and using evidence to eliminate potential causesAble to solve complex, multi-variable program and data issues through structured investigation rather than relying on predefined solutionsTakes ownership of technical problems from identification through validated resolutionComfortable working from incomplete or evolving mapping specifications and proactively resolving ambiguities with Business AnalystsClear written and verbal communication skills, including the ability to explain technical findings and code behavior to non-technical team membersOrganized, self-directed, and able to manage development work across multiple complex projects concurrentlyDetail-oriented with the ability to identify patterns and systemic coding or data issues across projectsCollaborative team player who takes ownership and drives technical issues to resolutionDemonstrated ability to deliver quality code within tight timelines and shifting priorities Intercontinental Exchange, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to legally protected characteristics.