The C.A.S.E. Engineering Group is seeking a senior IBM Mainframe developer to drive COBOL, CICS, and DB2 initiatives within a federal tax processing environment. This hybrid, full-time role reports to the Technical Program Manager and requires collaboration across cross-functional teams to keep mission-critical systems running smoothly.
Responsibilities
- Design, develop, test, debug, and maintain COBOL, CICS, and DB2 applications on an IBM Mainframe.
- Test, troubleshoot, and maintain mainframe programs to ensure reliability and performance.
- Resolve production issues promptly to sustain system availability and service levels.
- Tune and optimize performance of mainframe-based applications.
- Perform root-cause analysis on production and development issues.
- Work extensively with Job Control Language (JCL), AEV JCL, VSAM, Panels, Copybooks, and Skeleton PROCS.
- Follow Production Environment Control Process (PECP) guidelines and the ServiceNow Endevor transmittal processes.
- Use CFOL Command Codes for research and support analysis of IRS Master Files.
- Design and modify coding changes for application enhancements and legislative mandates; document changes accordingly.
- Develop and optimize PL/SQL; support relational database products.
- Perform peer reviews and ensure adherence to coding best practices; release software free of defects.
- Produce Enterprise Life Cycle (ELC) documentation such as DSR, iBSR, ICD, and TRR.
- Utilize IBM Engineering Lifecycle Management (ELM) Tool Suites, including DOORS Next, Jira, and IBM Engineering Test Management (ETM).
- Support Agile development practices and collaborate with stakeholders to implement technical solutions.
Requirements
- Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related field, or equivalent experience.
- At least 8 years of experience in COBOL, CICS, and DB2 development.
- Proven experience with legacy systems and applications in a mainframe environment.
- Experience in performance tuning, troubleshooting, and optimization of mainframe-based applications.
- IBM Mainframe COBOL development within a high-availability environment.
- Experience with CICS and DB2, plus IBM Suite, File Manager, JCL, AEV JCL, and IBM Debugger.
- Knowledge of VSAM, Panels, Copybooks, and Skeleton PROCS.
- PL/SQL development and optimization.
- Experience with Endevor and the ServiceNow ticket / Endevor transmittal processes.
- IBM Engineering Lifecycle Management (ELM) Tool Suites, e.g., IBM Requirements Management.
- DOORS Next, Jira, and IBM Engineering Test Management (ETM).
- CFOL Command Codes for research.
Technologies
- COBOL, CICS, DB2
- JCL, AEV JCL
- VSAM, Panels, Copybooks, Skeleton PROCS
- CFOL Command Codes
- PL/SQL
- Endevor, ServiceNow
- DOORS Next, Jira, IBM Engineering Test Management (ETM)
- IBM Engineering Lifecycle Management (ELM) Tool Suites, IBM Requirements Management
- IBM Debugger, File Manager
- RHEL 8 containerization, Cloud Migration
Benefits
- 401(k)
- Dental insurance
- Health insurance
About The C.A.S.E. Engineering Group
The C.A.S.E. Engineering Group is an information technology engineering firm that focuses on cybersecurity advisory services, modernizing IT architectures, developing and implementing IT strategic plans, and designing innovative systems, software, and applications. C.A.S.E. stands for Cybersecurity, Architecture, Strategy, and Engineering, reflecting our core expertise.
Position Overview
The Senior COBOL/CICS/DB2 Developer will develop, maintain, and enhance applications on an IBM Mainframe platform in support of federal tax processing and master file research. This role requires extensive experience in COBOL, CICS, and DB2 development, a strong command of legacy mainframe systems, and the ability to troubleshoot, optimize, and tune high-availability applications. The developer will collaborate with cross-functional teams to resolve production issues and implement technical solutions.
Location
New Carrollton, MD 20784 (Hybrid)
Why Join Us
- Work with mission-critical systems that directly support federal tax processing operations
- Apply deep mainframe expertise on high-impact, high-visibility systems
- Be part of a growing company that values innovation, technical excellence, and problem-solving
- Hybrid role offering flexibility and work-life balance
- Opportunities for professional growth and advancement
