Mainframe Developer – COBOL / NaturalOne / Adabas

14311 - IT - STO - Programmer - Advanced - Mainframe Developer - Composite Reservoir Accounts

Location - Columbia SC (100% Remote)

Duration - 6 Months

Start date - 1 Dec 2026

Last Date of submission - 6 Nov 2026

The State of South Carolina is looking for a Programmer - Advanced - Mainframe Developer - Composite Reservoir Accounts

Why is this position open: New position to assist with incremental development to existing system.

Candidate location: No SC residency required. Candidate must reside in lower 48 states (Continental US) and comfortable working EST time zone hours.

Please make sure to read the ENTIRE SOW attached. The hiring manager took time to elaborate on what the candidates will be expected to display expertise in during the interview process.

Required skills

5+ years of Enterprise COBOL development experience in a z/OS environment

5+ Years of Experience with NaturalOne

5+ 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 Adabas and VSAM

3+ years of experience with tracing undocumented logic through copybooks, call chains, and job streams

Preferred skills

Experience with cash management, account pooling, sweeps, or treasury applications

Experience with CA-7 scheduling and batch operations

Experience with REXX, Python, or Java