Sr. Cobol Developer

What You’ll Do

• Participate in development efforts supporting the project involving multiple legacy mainframe applications

• Analyze existing legacy systems and provide code walkthroughs, logic analysis, and technical documentation to ITS development teams

• Design, develop, modify, test, and maintain COBOL and NATURAL programs, along with associated JCL jobs, based on functional specifications and enhancement requests

• Perform ongoing maintenance and enhancements to batch and online mainframe applications

• Troubleshoot and resolve production issues, job failures, and system abends, including root cause analysis and corrective actions

• Analyze ADABAS database structures, files, and access methods to support application development and system integration

• Develop and maintain data feeds, file layouts, and interface processes between legacy systems and modernized ITS components

• Participate in system design reviews, technical planning sessions, and code reviews

• Produce and maintain technical documentation, including program specifications, data definitions, job flows, and system architecture documentation

• Support system testing, integration testing, and user acceptance testing UAT

• Implement best practices for mainframe development, including coding standards, version control, and change management

• Assist with performance tuning and optimization of batch jobs, database access, and program execution

• Provide production support for mission‑critical applications and collaborate closely with analysts, architects, and development teams

What You’ll Need

Required:

• Advanced experience with COBOL programming in enterprise mainframe environments

• Strong expertise in JCL development and job scheduling

• Extensive experience with NATURAL programming

• Working knowledge of ADABAS database architecture and file structures

• Experience analyzing and maintaining large legacy mainframe codebases

• Strong troubleshooting and debugging skills for batch and online applications

• Experience with system integration, data interfaces, and file transfer processes

• Proficiency with mainframe utilities, debugging tools, and job monitoring tools

• Strong documentation and communication skills

• Ability to work independently while coordinating with multiple technical teams

Preferred:

• Experience supporting taxation or government revenue systems

• Familiarity with CICS and online transaction processing environments

• Experience with data migration or modernization projects involving legacy mainframe applications

• Knowledge of mainframe security, scheduling systems, and source code management tools

• Experience working within large‑scale enterprise or government IT environments

Physical Demands

• Ability to safely and successfully perform the essential job functions consistent with the ADA and other federal, state, and local standards

• Sedentary work that involves sitting or remaining stationary most of the time with occasional need to move around the office to attend meetings

• Ability to conduct repetitive tasks on a computer, utilizing a mouse, keyboard, and monitor

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