Senior Mainframe Engineer - COBOL & JCL

Visa Hunt; United States; On-site; USD 125,000 - 212,000; Full time

Job summary

FIS is seeking an experienced Mainframe Application Developer to support, enhance, and modernize IBM z/OS banking solutions. You will work on COBOL/JCL based systems, troubleshoot production issues, and collaborate with analysts, architects, and client stakeholders to translate requirements into robust designs.

Ideal candidates have 5+ years in mainframe development, strong debugging and batch processing skills, and a proactive approach to problem solving in a high-volume financial services

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.
• Experience using mainframe debugging, testing, and diagnostic tools.
• Experience working in financial services, banking, or other high-volume transaction processing environments.
• Knowledge of software development lifecycle methodologies and application support processes.
• Strong analytical and problem-solving skills with the ability to diagnose complex production issues.
• Excellent verbal and written communication skills.
• Ability to work independently and effectively manage multiple priorities in a fast-paced environment.

Responsibilities

• Develop, maintain 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.
• Collaborate with distributed systems, operations, and infrastructure teams as needed.
• Perform other related duties as assigned.

Skills

COBOL

JCL

Mainframe development

Production support

Troubleshooting

Batch processing

Job scheduling

DB2/VSAM

Analytical problem solving

Communication skills

Independent/multi-priority

Tools

CICS

DB2

VSAM

IDCAMS

Assembler

XPEDITOR

Job description

FIS is seeking an experienced Mainframe Application Developer to support, enhance, and modernize IBM z/OS banking solutions. You will work on COBOL/JCL based systems, troubleshoot production issues, and collaborate with analysts, architects, and client stakeholders to translate requirements into robust designs.

Ideal candidates have 5+ years in mainframe development, strong debugging and batch processing skills, and a proactive approach to problem solving in a high-volume financial services