Mainframe Developer

Ethereum Technologies; Edison (NJ); On-site; USD 120,000 - 150,000; Full time

Job summary

Ethereum Technologies in Edison, NJ seeks a seasoned IBM Mainframe Developer to design, develop, and maintain enterprise applications. You will work on COBOL programs, JCL, DB2 SQL, and CICS online transactions in a fast-paced environment.

Responsibilities include batch processing, performance tuning, system testing, and modernization efforts. Collaborative cross-functional teamwork and documentation are essential.

Qualifications

• U.S. citizenship or work authorization.
• Experience with IBM mainframe technologies.
• Ability to design, develop, enhance, and maintain enterprise applications.

Responsibilities

• Design, develop, enhance, and maintain enterprise applications using IBM Mainframe technologies.
• Develop and maintain COBOL programs to support complex business requirements.
• Create, modify, and execute JCL scripts for batch processing and job scheduling.
• Work with DB2 databases, including SQL queries, stored procedures, and performance tuning.
• Develop and maintain CICS online transactions and screen processing.
• Work with VSAM datasets (KSDS/ESDS/RRDS).
• Analyze legacy applications and implement system enhancements.
• Perform batch processing, job monitoring, scheduling, and troubleshooting.
• Develop production support solutions for critical mainframe applications.
• Identify and resolve defects, abends, and performance issues.
• Perform code reviews, unit/integration/system testing.
• Participate in mainframe modernization and migration projects.
• Collaborate with BAs, QA, architects, and cross-functional teams.
• Optimize COBOL and DB2 queries for performance.
• Manage source code with Endevor/Changeman or Git.
• Support deployments, release management, and production implementation.
• Prepare technical documentation and participate in Agile development.

Tools

COBOL/COBOL II

JCL

DB2 & SQL

CICS

VSAM

TSO/ISPF

Mainframe Utilities (SORT, IDCAMS, IEBGENER)

Job description

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

Design, develop, enhance, and maintain enterprise applications using IBM Mainframe technologies.

Develop and maintain COBOL programs to support complex business requirements.

Create, modify, and execute JCL scripts for batch processing and job scheduling.

Work with DB2 databases, including SQL queries, stored procedures, and database performance tuning.

Develop and maintain CICS online transactions and screen processing.

Work with VSAM datasets, including KSDS, ESDS, and RRDS.

Analyze existing legacy applications and implement system enhancements.

Perform batch processing, job monitoring, scheduling, and troubleshooting.

Develop and maintain production support solutions for critical mainframe applications.

Identify and resolve application defects, abends, and performance issues.

Perform code reviews, unit testing, integration testing, and system testing.

Work on mainframe application modernization and legacy system migration initiatives.

Collaborate with business analysts, QA teams, architects, and cross-functional development teams.

Optimize COBOL programs and DB2 queries for improved application performance.

Manage source code using Endevor, Changeman, or Git.

Support application deployments, release management, and production implementation.

Prepare technical documentation and participate in Agile development activities.

Required Technical Skills

COBOL / COBOL II

JCL (Job Control Language)

DB2 and SQL

CICS

VSAM

TSO / ISPF

Mainframe Utilities (SORT, IDCAMS, IEBGENER)

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.