Remote Mainframe Developer — COBOL/NATURAL/JCL Expert

CAI; Juneau (AK); Remote; USD 77,000 - 84,000; Full time

Job summary

CAI is seeking a highly skilled Mainframe Developer for a full-time remote contract. You will work on COBOL, NATURAL, JCL, and ADABAS in a distributed client environment, supporting modernization and integration projects.

This role requires extensive mainframe experience, a focus on batch and online applications, and strong troubleshooting skills to resolve production issues and improve system reliability.

Qualifications

• 5+ years of experience developing enterprise mainframe applications using COBOL.
• 5+ years of experience with JCL development and job scheduling.
• 3+ years of experience with NATURAL/ADABAS.
• 5+ years of experience using TSO/ISPF or similar mainframe editing tools.
• 3+ years of experience with AFP, PAGEDEF, FORMDEF, and OVERLAY technologies.

Responsibilities

• Develop, enhance, and maintain COBOL, NATURAL, and JCL programs supporting multiple client projects.
• Work on multiple legacy mainframe applications and integration efforts involving taxation and client systems.
• Analyze existing mainframe applications and provide code walkthroughs, technical analysis, and documentation to support modernization teams.
• Design, code, test, implement, and maintain new and existing 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 (UAT), and production deployments.

Skills

COBOL

JCL

NATURAL

ADABAS

TSO/ISPF

AFP

PAGEDEF

FORMDEF

OVERLAY

CICS

Job description

CAI is seeking a highly skilled Mainframe Developer for a full-time remote contract. You will work on COBOL, NATURAL, JCL, and ADABAS in a distributed client environment, supporting modernization and integration projects.

This role requires extensive mainframe experience, a focus on batch and online applications, and strong troubleshooting skills to resolve production issues and improve system reliability.