Mainframe Technical Specialist

Job Summary:

Act as the subject matter expert (SME) for Hogan core banking systems, reverse-engineering legacy modules and translating embedded business logic into modern, canonical specifications to support migration to the Pismo platform.

Responsibilities

Key Responsibilities Reverse-engineer Hogan modules including IDS, CIS, PEP+, ULS, DDA, and rail-specific components Analyze and document business rules embedded in COBOL programs into structured, reusable specifications Design and build data extraction and integration interfaces using: VSAM DB2 MQ Enable dual-write mechanisms, rollback strategies, and legacy-side validation during migration Support legacy system stabilization and change control processes in production Collaborate with architecture and development teams to ensure accurate behavior replication in Pismo Participate in decommissioning strategy for legacy functionalities L

Skill Requirements

10+ years of hands-on experience with DXC Hogan core banking platform Strong expertise in: COBOL, JCL, CICS, DB2, VSAM, MQ Proven experience in: Legacy system analysis and reverse engineering Core banking modernization / migration programs Strong understanding of production change management and control processes Ability to translate complex legacy logic into modern functional/technical documentation

Must Have Skills

Customer Information Control System (CICS)Customer Information Control System (CICS) Click Enter to show the proficiency description of IBM DB2IBM DB2 Click Enter to show the proficiency description of Virtual Storage Access Methods (VSAM)Virtual Storage Access Methods (VSAM) Click Enter to show the proficiency description of Job Control Language (JCL)Job Control Language (JCL) Click Enter to show the proficiency description of COBOLCOBOL

Other Requirements

Prior experience in Hogan to cloud-native core migration (e.g., Pismo, Mambu) Exposure to ISO 20022 mapping and payments transformation Experience with mainframe DevOps tools (CA Endevor, Changeman) Knowledge of parallel-run and reconciliation strategies