Mainframe Developer

Ethereum Technologies LLC; Tampa (FL); On-site; USD 90,000 - 130,000; Full time

Job summary

Ethereum Technologies in Tampa, FL is seeking an experienced Mainframe Developer to design, develop, enhance, and maintain large-scale mainframe applications. You will work with COBOL, JCL, DB2, CICS, and VSAM to deliver reliable, high-performance solutions.

Collaborate with business analysts and QA teams, perform debugging and root-cause analysis, and ensure production stability and compliance with coding standards.

Qualifications

• Experience designing and developing mainframe applications.
• Strong knowledge of COBOL, JCL, DB2, CICS, VSAM.
• Experience with batch processing and production support.
• Experience collaborating with analysts, QA, and cross-functional teams.

Responsibilities

• Design, develop, maintain, and enhance mainframe applications using COBOL and related technologies.
• Develop, execute, and troubleshoot JCL scripts for batch processing and job scheduling.
• Work with DB2 databases to write complex SQL queries, manage database operations, and improve query performance.
• Develop and maintain online transaction processing applications using CICS.
• Work with VSAM datasets, including file creation, access, maintenance, and data management.
• Analyze business and technical requirements and convert them into effective technical solutions.
• Perform application debugging, root cause analysis, and production issue resolution.
• Monitor batch jobs, identify job failures, and ensure successful execution of scheduled processes.
• Participate in application testing, code reviews, system integration, and deployment activities.
• Collaborate with cross-functional teams to support application enhancements and system integrations.
• Prepare and maintain technical documentation, program specifications, and operational procedures.
• Ensure application performance, data accuracy, system stability, and compliance with development standards.

Skills

COBOL

JCL

DB2

CICS

VSAM

Batch processing

Production support

Debugging

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Summary:

We are looking for an experienced Mainframe Developer responsible for designing, developing, enhancing, and maintaining enterprise-level mainframe applications. The ideal candidate should have strong experience in COBOL, JCL, DB2, CICS, and VSAM, along with expertise in batch processing, application development, debugging, and production support. The candidate will work closely with business analysts, technical teams, and QA teams to deliver reliable, scalable, and high-performance mainframe solutions.

Key Responsibilities:

• Design, develop, maintain, and enhance mainframe applications using COBOL and related technologies.
• Develop, execute, and troubleshoot JCL scripts for batch processing and job scheduling.
• Work with DB2 databases to write complex SQL queries, manage database operations, and improve query performance.
• Develop and maintain online transaction processing applications using CICS.
• Work with VSAM datasets, including file creation, access, maintenance, and data management.
• Analyze business and technical requirements and convert them into effective technical solutions.
• Perform application debugging, root cause analysis, and production issue resolution.
• Monitor batch jobs, identify job failures, and ensure successful execution of scheduled processes.
• Participate in application testing, code reviews, system integration, and deployment activities.
• Collaborate with cross-functional teams to support application enhancements and system integrations.
• Prepare and maintain technical documentation, program specifications, and operational procedures.
• Ensure application performance, data accuracy, system stability, and compliance with development standards.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.