Senior Mainframe Engineer - COBOL, JCL & Production Support

FIS; Rainwood (AR); On-site; USD 125,000 - 212,000; Full time

Benefits offered by this job

Competitive salary

Benefits

Flexible work environment

Job summary

FIS is seeking a seasoned Mainframe Application Developer to support IBM z/OS applications, focusing on COBOL, JCL, CICS, DB2, and batch processing. You will troubleshoot, enhance, and modernize core banking solutions in a high-volume environment.

With 5+ years of mainframe experience, you’ll tackle complex production issues, mentor junior developers, and participate in on-call rotations, while collaborating with analysts and infrastructure teams to ensure reliable operations.

Qualifications

• 5+ years of IBM z/OS mainframe application development experience.
• Strong proficiency in COBOL and JCL programming.
• Experience supporting and troubleshooting production mainframe applications.
• Experience with mainframe batch processing, job scheduling, and job execution analysis.

Responsibilities

• Develop, enhance, maintain, and support IBM z/OS mainframe applications using COBOL, JCL, and related technologies.
• Analyze, design, code, test, debug, document, implement, and maintain mainframe software solutions.
• Research and resolve production issues within complex banking applications and batch processing environments.
• Create and modify JCL, batch jobs, utilities, and supporting application components.
• Perform root cause analysis for application failures, production incidents, and performance issues.
• Analyze existing mainframe application logic and implement system enhancements based on business and client requirements.
• Partner with business analysts, architects, and client stakeholders to translate requirements into technical designs.
• Develop and maintain technical specifications, design documents, and operational procedures.
• Participate in code reviews and promote mainframe development best practices.
• Recommend opportunities for application modernization, process improvements, and operational efficiencies.
• Support system integration testing, user acceptance testing, and production implementation activities.
• Provide technical leadership and mentoring to junior developers and team members.
• Participate in the programmer on‑call rotation supporting critical banking applications.

Skills

COBOL

JCL

CICS

DB2

VSAM

IBM z/OS technologies

Problem solving

Communication

Tools

CICS

DB2

VSAM

IDCAMS

XPEDITOR

Assembler

Job description

FIS is seeking a seasoned Mainframe Application Developer to support IBM z/OS applications, focusing on COBOL, JCL, CICS, DB2, and batch processing. You will troubleshoot, enhance, and modernize core banking solutions in a high-volume environment.

With 5+ years of mainframe experience, you’ll tackle complex production issues, mentor junior developers, and participate in on-call rotations, while collaborating with analysts and infrastructure teams to ensure reliable operations.