Mainframe Developer

Mainframe Developer

Prudent Technology is seeking a Mainframe Developer that will provide agency‑wide mainframe development and security engineering support. The primary focus is the development, maintenance, and enhancement of Top Secret security environment on z/OS mainframe platforms, including JCL development, COBOL and REXX programming, automated batch job maintenance, and security risk model management. The specialist supports agency‑wide security programming objectives in alignment with DISA STIG guidelines, generates audit and tracking reports, and maintains z/OS Risk Models across critical mainframe system resources, including TCP/IP, FTP, Web Sphere MQ, WAS, and Unix System Services.

Work products include mainframe code releases, testing documentation, audit reports, and Confluence documentation updates.

Location: Woodlawn, MD

• Develop, modify, and maintain legacy Top Secret security code and z/OS Risk Models, ensuring compliance with agency‑wide security requirements and DISA STIG security parameter guidelines.
• Write and maintain COBOL and REXX programs, Job Control Language (JCL) jobs, and automated batch jobs to support new and existing security projects and audit reporting requirements.
• Create, update, and maintain CICS Web Services in support of mainframe security infrastructure.
• Update, modify, and maintain Top Secret Security screens; generate requested audit reports covering users, systems, and access to resources and sensitive data within required time frames.
• Use CA‑Auditor and z/OS Mainframe ISPF tools to generate z/OS system‑level data reports in support of ongoing security monitoring and audit activities.
• Maintain SSA's z/OS Security Risk Model as it pertains to z/OS Mainframe System resources including FTP, TCP/IP, Web Sphere MQ (WAS), and Unix System Services; update and maintain associated mainframe jobs and programs.
• Generate periodic audit and tracking reports; deliver Software Release Change Logs and requirements documentation for every code release in coordination with the Work Order Manager (WOM).
• Provide assistance with legacy Top Secret auditing and reporting, including support for audit findings remediation and documentation of resolution actions.
• Document all project and task activity in JIRA prior to and after actions taken; maintain up‑to‑date Confluence documentation for all new and updated code releases.
• Apply industry‑standard mainframe development best practices and secure programmatic practices throughout all development, testing, and deployment activities.
• Prepare and deliver weekly electronic work activity reports to the Work Order Manager; communicate technical developments in written and oral form to supervisory and executive audiences as requested.
• Support development of testing documentation for every code release, ensuring quality and traceability of all changes to the Top Secret security environment.

• Bachelor's degree in Computer Science, Information Systems, Information Technology, or a related technical field; equivalent experience may substitute.
• 5–7 years of experience in mainframe development or mainframe security engineering, with demonstrated proficiency in COBOL and REXX programming languages within IBM z/OS environments.
• Hands‑on experience developing, modifying, and maintaining Job Control Language (JCL) jobs and automated batch programs in a production mainframe environment.
• Demonstrated experience with CA Top Secret or equivalent mainframe security software, including profile management, security screen administration, and audit report generation.
• Experience using z/OS Mainframe ISPF tools and CA‑Auditor or equivalent tools to generate system‑level security and data reports.
• Experience maintaining or supporting z/OS mainframe system resources including FTP, TCP/IP, Web Sphere MQ (WAS), and Unix System Services in an enterprise security context.
• Working knowledge of DISA STIG security parameter guidelines as applied to mainframe and z/OS environments.
• Experience with version control and code repository management using Bit Bucket or equivalent tools, with consistent documentation of change activity.
• Experience…