Remote COBOL Developer for z/OS Core Banking

CAI; Trenton (NJ); Remote; USD 96,000 - 102,000; Full time

Job summary

CAI is seeking a Cobol Developer to design and implement a new pooled-account structure inside a running z/OS core, without disturbing existing balances. This contract role offers remote work flexibility and the chance to contribute to critical financial systems.

You will analyze current programs, modify COBOL and JCL, extend cycles, and produce documentation to support ongoing operations. Prior experience in enterprise COBOL on z/OS is essential.

Qualifications

• 5+ years of Enterprise COBOL development experience in a z/OS environment (batch & online).
• 5+ Years of Experience with NaturalOne; developing, debugging, and deploying.
• Experience with Natural programs, subprograms, and maps.
• 3+ years of JCL development and production support experience.
• 3+ years of experience with financial/accounting systems development or support including double-entry posting, balance/accrual maintenance, value dating, reconciliation, and month-end closeouts in a regulated environment.
• 3+ years of experience working with VSAM and Adabas including file design and performance behavior.
• 3+ years of experience with tracing undocumented logic through copybooks, call chains, and job streams.

Responsibilities

• Analyze the current account master, posting, and balance-maintenance programs to establish where composite reservoir accounts must be recognized.
• Design and code the new account type end to end: master file and table structures, account opening and closing, participant linkage, sweep and reverse-sweep logic, allocation and interest apportionment, and closing balance derivation.
• Modify batch COBOL programs and JCL and extend the nightly and month-end cycles to include the new processing without lengthening the batch window beyond agreed limits.
• Add new CRAs to the audit trail, exception reporting, and reconciliation controls the new function requires, working with accounting stakeholders on what must be evidenced.
• Produce test data, unit and regression test packs, and parallel-run comparisons against current production output; investigate every difference until it is explained.
• Support implementation, conversion of any in-scope existing accounts, and early-life production runs, including on-call cover during the first cycles.
• Leave behind program documentation, data-flow notes, and runbook updates that the support team can work from.

Skills

COBOL

z/OS

NaturalOne

JCL

VSAM

Adabas

tracing copybooks

Education

Degree in computer science or related field

Tools

CA-7 scheduling

Python

Java

Job description

CAI is seeking a Cobol Developer to design and implement a new pooled-account structure inside a running z/OS core, without disturbing existing balances. This contract role offers remote work flexibility and the chance to contribute to critical financial systems.

You will analyze current programs, modify COBOL and JCL, extend cycles, and produce documentation to support ongoing operations. Prior experience in enterprise COBOL on z/OS is essential.