Mainframe Developer

CAI•,

2d•$56 - $61•Remote

About The Position

CAI is seeking an experienced Mainframe Developer to join its IT team. This full-time, remote contract position supports multiple client projects and legacy mainframe applications, including taxation and client-system integrations. The developer will build and maintain COBOL, NATURAL, and JCL programs; work with ADABAS; troubleshoot production issues; support testing and deployments; and document technical systems and modernization efforts.

Requirements

At least 5 years of experience developing enterprise mainframe applications using COBOL.
At least 5 years of experience with JCL development and job scheduling.
At least 3 years of experience with NATURAL/ADABAS.
At least 5 years of experience using TSO/ISPF or similar mainframe editing tools.
At least 3 years of experience with AFP, PAGEDEF, FORMDEF, and OVERLAY technologies.
Advanced expertise in COBOL, JCL, and NATURAL programming.
Working knowledge of ADABAS database architecture and file structures.
Experience maintaining and enhancing large legacy mainframe systems.
Strong troubleshooting, debugging, and problem-solving skills for batch and online applications.
Experience developing system integrations, data interfaces, file transfers, and data feeds.
Ability to analyze technical specifications, system workflows, and data models.
Experience with mainframe utilities, job monitoring tools, and debugging tools.

Nice To Haves

Experience supporting taxation, revenue, or government systems.
Familiarity with CICS and online transaction processing environments.
Experience with legacy modernization or data migration initiatives.
Knowledge of mainframe security, scheduling tools, and source code management practices.

Responsibilities

Develop, enhance, and maintain COBOL, NATURAL, and JCL programs supporting multiple client projects.
Work on legacy mainframe applications and integration efforts involving taxation and client systems.
Analyze existing applications and provide code walkthroughs, technical analysis, and documentation for modernization teams.
Design, code, test, implement, and maintain batch and online mainframe applications.
Troubleshoot production issues, job failures, and system abends; perform root cause analysis and implement corrective actions.
Analyze and support ADABAS databases, file structures, and data access methods.
Develop and maintain data feeds, interfaces, file layouts, and integration processes between legacy systems and modernized platforms.
Participate in system design reviews, technical planning sessions, and code reviews.
Create and maintain technical documentation, including program specifications, job flows, system architecture diagrams, and data definitions.
Support system testing, integration testing, user acceptance testing, and production deployments.