Sr. Mainframe Developer

Mainframe Developer

About the Position

We are looking for an experienced Mainframe Developer with 10+ years of experience in COBOL, JCL and DB2 to join our IT support team.

The ideal candidate will be responsible for enhancing, maintaining, and supporting mainframe applications that are critical to our business operations.

This role requires a detail-oriented professional who can work effectively in a team environment to ensure the seamless operation of our Mainframe Applications, proactively monitoring, and managing incident tickets to support business continuity.

Roles and Responsibilities

• Maintenance and Support: Perform regular maintenance and provide technical support for existing mainframe applications written in COBOL, Assembler, C and DB2. Troubleshoot and resolve any issues that arise, ensuring minimal disruption to business operations.
• Code Review and Testing: Participate in code reviews to ensure adherence to coding standards and best practices. Develop and execute test plans to ensure the quality and reliability of the applications.
• JES2/JES3 & System Integration: Work with JES2/JES3 subsystem environments, including job flow understanding, troubleshooting, and spool management. Knowledge of SAPI – (Sysout Application Programming Interface - SSI 79/ SSI 80) interfaces where required for system interactions.
• ISPF Panel Development: Develop, customize, and enhance ISPF panels and dialogs to support application interfaces. Knowledge of DTL is nice to have.
• Working knowledge of REXX for automation, scripting, ISPF dialog coding, and tooling enhancements.
• Collaboration: Work collaboratively with cross-functional teams, including project managers, business analysts, QA testers, and other developers.
• Communication and Documentation:
• Maintain detailed logs of system incidents and resolutions. Prepare and distribute daily/weekly reports on system performance and issues.
• Collaborate with application, infrastructure, and support teams to address issues effectively. Ensure that all technical documentation is up to date and easily accessible.

Must Have:

• 10+ years of development experience.
• Strong knowledge of IBM mainframe environments, including:

Z/OS (MVS), SysPlex

CICS, DB2, JES,VSAM

COBOL

UNIX System Services (USS)

WebSphere

Understanding of z/OS internals (task management, address spaces, etc.)

• Experience with Enterprise Content Management (ECM) products and output management.
• Ability to deliver in fast-paced engagements, set priorities, and execute effectively.
• Experience in client relationship management, project coordination, and delivery in an onsite–offshore model.
• Good understanding of CMMi SDLC processes.
• Experience with IBM CMOD migration processes.
• Hands-on expertise in:

IBM Z/OS Assembler

COBOL

JCL

C/C++

DB2

• Knowledge of REXX is a plus along with other mainframe tools.
• Strong leadership qualities: team motivation, conflict resolution, and decision-making.
• Ability to drive multiple projects with effective collaboration and time management.
• Excellent client-facing and internal communication skills.

Good to Have:

• Experience with mainframe batch processing including JCL and job scheduling.
• Extensive experience with CA View Deliver, ASG Mobius, IBM CMOD on Z/OS.
• Familiarity with security practices and access control using RACF / ACF2
• Hands-on experience with SMP/E for installation, maintenance, and upgrade of system and application software