Senior COBOL/CICS/DB2 Developer

Mainframe Software Developer (COBOL, JCL, CICS, SQL)

Location: Hybrid-New Carrollton, MD (Lanham) with remote flexibility
Position Type: Full-Time
Reports To: Technical Program Manager

About The C.A.S.E. Engineering Group

The C.A.S.E. Engineering Group is an Information Technology (IT) engineering firm that specializes in providing cybersecurity advisory services, modernizing IT architectures, developing and implementing IT strategic plans, and designing and engineering innovative systems, software, and applications. C.A.S.E. stands for Cybersecurity, Architecture, Strategy, and Engineering, which reflects both our core expertise and our belief that developing innovative solutions in unique environments requires a balanced approach. While C.A.S.E. tailors its solutions on a case-by-case basis to address the specific challenges organizations face, it also leverages industry best practices to ensure efficiency, security, and long-term success.

At C.A.S.E., we are always on the lookout for exceptional talent that can support our vision of delivering cutting-edge solutions, driving innovation, and solving complex challenges in mission-critical environments. We seek professionals who are not only technically proficient but also adaptable, analytical, and dedicated to excellence—ensuring that we continue to provide our clients with the best expertise available.

Position Overview

The Senior COBOL/CICS/DB2 Developer will be responsible for developing, maintaining, and enhancing applications on an IBM Mainframe platform in support of a federal tax processing and master file research environment. 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, implement system enhancements, and ensure that all changes meet federal standards before deployment.

This is a full-time, hybrid role requiring availability during normal business hours, with occasional night and weekend work as needed based on project demands. Personnel must have reasonable access to the government site in Lanham, MD and be able to travel there within two hours’ notice. The Senior COBOL/CICS/DB2 Developer reports to the Technical Program Manager and works closely with development, testing, and operations teams to ensure high-quality software development and system integration.

Key Responsibilities

• Develop, test, debug, and maintain COBOL, CICS, and DB2 applications on an IBM Mainframe platform
• Work extensively with Job Control Language (JCL), AEV JCL, VSAM, Panels, Copybooks, and Skeleton PROCS
• Troubleshoot and resolve production problems in a timely manner to sustain system availability
• Perform performance tuning, optimization, and root-cause analysis on mainframe-based applications
• Follow Production Environment Control Process (PECP) guidelines and the ServiceNow ticket and Endevor transmittal processes
• Use CFOL Command Codes for research and support analysis of IRS Individual and Business Master Files
• Design, modify, and document coding changes for application enhancements and legislative mandates
• Develop and optimize PL/SQL and support relational database products
• Perform peer reviews and ensure adherence to coding best practices
• Ensure software changes are defect-free before deployment to production
• Produce Enterprise Life Cycle (ELC) documentation such as DSR, iBSR, ICD, and TRR
• Utilize the 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 define and implement technical solutions

Qualifications

Education:

• Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related field (or equivalent experience).

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 optimizing mainframe-based applications

Technical Expertise:

• IBM Mainframe COBOL development within a high-availability environment
• Customer Information Control System (CICS) and DB2
• IBM Suite, File Manager, Job Control Language (JCL), AEV JCL, and IBM Debugger
• VSAM, Panels, Copybooks, and Skeleton PROCS
• PL/SQL development and optimization
• Endevor and the Service Now 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

Additional Skills:

• Strong problem-solving and debugging skills with attention to detail
• Knowledge of the IRS Individual and Business Master File systems is highly desirable
• Familiarity with Enterprise Life Cycle (ELC) process and documentation, and Agile methodologies
• Knowledge of RHEL 8 containerization and Cloud Migration is a plus
• Ability to collaborate in a team-oriented environment and communicate effectively with technical and non-technical stakeholders
• Adaptability in a fast-paced, evolving work environment with shifting priorities

Clearance:

• Must be able to obtain and maintain an IRS Minimum Background Investigation (MBI); U.S. work authorization required

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

Job Type: Full-time

Pay: $120,000.00 - $135,000.00 per year

Benefits:

• 401(k)
• Dental insurance
• Health insurance

Location:

• New Carrollton, MD 20784 (Required)

Work Location: Hybrid remote in New Carrollton, MD 20784

Salary : $120,000 - $135,000