Remote Mainframe Interfaces & Data Flow Specialist

CTG; United States; Remote; USD 110,000 - 140,000; Full time

Job summary

CTG seeks a Remote Mainframe Systems Analyst / Interface & Documentation Specialist to analyze complex mainframe interfaces, map data flows, and document end-to-end processing across multiple applications. The role focuses on Systematics interfaces (RM/IM/IT/GN/ALS/AIS) and core mainframe tech (COBOL, CICS, DB2, JCL, VSAM, copybooks, batch/file layouts).

You will develop and validate source-to-target mappings, assemble interface inventories, and produce reusable technical docs and process

Qualifications

• Experience with Systematics interfaces and data flows across RM, IM, IT, GN, and ALS/AIS.
• Strong knowledge of COBOL, CICS, DB2, JCL, VSAM, copybooks, and mainframe file layouts.
• Proficient in analyzing mainframe interfaces, data integration, batch processing, and application dependencies.
• Skilled in source-to-target data mapping, data-flow analysis, and technical documentation.
• Experience gathering and documenting Business Requirements and Functional Requirements for mainframe apps.

Responsibilities

• Analyze complex mainframe interfaces, data flows, batch processes, and system dependencies across multiple applications.
• Analyze and document Systematics interfaces and data flows across RM, IM, IT, GN, and ALS/AIS.
• Develop and validate source-to-target data mappings, including file layouts, element IDs, offsets, lengths, and transformations.
• Create and maintain interface inventories with file layouts, processing schedules, dependencies, owners, and SMEs.
• Trace files, batch jobs, reports, interfaces, and processing flows to validate data movement and investigate discrepancies.
• Develop data-flow diagrams, process diagrams, traceability docs, interface specifications, and technical process summaries.
• Gather, analyze, and document Business Requirements and Functional Requirements with owners and technical teams.
• Review existing docs, identify gaps, and validate findings with stakeholders.
• Document unresolved questions, assumptions, and dependencies while clarifying incomplete data.
• Create reusable technical documentation including mappings, requirements, processes, PBIs, and artifacts.

Skills

Systematics interfaces

RM interfaces

IM interfaces

IT interfaces

GN interfaces

ALS/AIS interfaces

COBOL

CICS

DB2

JCL

VSAM

Copybooks

Mainframe file layouts

Data-flow analysis

Technical documentation

Requirements gathering

Job description

CTG seeks a Remote Mainframe Systems Analyst / Interface & Documentation Specialist to analyze complex mainframe interfaces, map data flows, and document end-to-end processing across multiple applications. The role focuses on Systematics interfaces (RM/IM/IT/GN/ALS/AIS) and core mainframe tech (COBOL, CICS, DB2, JCL, VSAM, copybooks, batch/file layouts).

You will develop and validate source-to-target mappings, assemble interface inventories, and produce reusable technical docs and process