Mainframe Assembler Developer
System One • Vienna, VA • Posted May 25, 2026
Position Overview
Job Title: Senior Mainframe Assembler Programmer
Location: Remote
Pay Rate: Open to W2 and established 1099's
Position Type: Multiyear Contract
Candidates must be eligible to work in the US without sponsorship and must live in the US
The position focuses heavily on IBM mainframe technologies and requires deep hands-on expertise in COBOL, Assembler, DB2, CICS, JCL, and batch processing.
Candidates must have a minimum of 10 years (ideally closer to 15 years) of professional experience and recent, hands on experience with Assembler, COBOL, and CICS.
Requirements
• MUST have extensive Assembler, CICS and COBOL
• Strong preference for this developer to have experience within an Agile environment
• Working with FIS OPF (Open Payments Framework), their ACH processing platform (Any experience FIS Connex experience is a bonus – “not required”)
• Minimum 10 years experience with COBOL, DB2, Command-Level CICS, JCL, Batch and TSO/I...
Location: Remote
Pay Rate: Open to W2 and established 1099's
Position Type: Multiyear Contract
Candidates must be eligible to work in the US without sponsorship and must live in the US
The position focuses heavily on IBM mainframe technologies and requires deep hands-on expertise in COBOL, Assembler, DB2, CICS, JCL, and batch processing.
Candidates must have a minimum of 10 years (ideally closer to 15 years) of professional experience and recent, hands on experience with Assembler, COBOL, and CICS.
Requirements
• MUST have extensive Assembler, CICS and COBOL
• Strong preference for this developer to have experience within an Agile environment
• Working with FIS OPF (Open Payments Framework), their ACH processing platform (Any experience FIS Connex experience is a bonus – “not required”)
• Minimum 10 years experience with COBOL, DB2, Command-Level CICS, JCL, Batch and TSO/I...