Sr Mainframe Developer

IntePros; Pittsburgh (Allegheny County); On-site; USD 110,000 - 150,000; Full time

Job summary

IntePros seeks an experienced Mainframe Developer to support a critical investment platform. The role blends day-to-day mainframe development with a major modernization effort, balancing legacy COBOL/VSAM/DB2 with newer Java/Python/Oracle technologies.

You will troubleshoot production issues, support BAU work, and collaborate with globally distributed teams to deliver solutions. Bachelor's degree required; financial services experience preferred.

Qualifications

• 7+ years of mainframe development experience.
• Strong hands-on COBOL, JCL, DB2, VSAM, and CICS.
• Experience with Control-M, MQ Series, and Easytrieve or REXX.
• Strong understanding of both batch and online processing.
• Experience troubleshooting production issues and supporting enterprise applications.
• Previous modernization/transformation experience is required.
• Experience with Java, Python, Oracle, APIs, cloud, or hybrid environments is a plus.
• Financial services experience is highly preferred.

Responsibilities

• Develop and enhance mainframe applications using COBOL, JCL, DB2, VSAM, and CICS in a large enterprise environment.
• Provide production support and BAU troubleshooting.
• Develop and troubleshoot batch jobs using Control-M and related tools.
• Contribute to a major modernization effort toward Java, Python, and Oracle.
• Assist with application transformation and integration as newer practices are introduced.
• Collaborate with developers, product teams, and business partners across globally distributed teams.
• Participate in daily standups and knowledge-sharing while documenting systems and processes.
• Explore AI-assisted development tools to improve efficiency and modernization efforts.

Skills

Mainframe development

COBOL

JCL

DB2

VSAM

CICS

Batch & online processing

Troubleshooting

Analytical

Communication

Education

Bachelor's degree

Tools

Control-M

MQ Series

Easytrieve

REXX

Job description

We're looking for an experienced Mainframe Developer to join a team supporting a critical short-term investment platform. This role will be a mix of day-to-day mainframe development/support and a major modernization effort, so we're looking for someone who is comfortable working with legacy technologies while also helping move applications toward newer platforms.

Responsibilities

• Develop and enhance mainframe applications using COBOL, JCL, DB2, VSAM, and CICS in a large enterprise environment.
• Support existing applications and BAU work, including troubleshooting issues, investigating defects, and providing a small amount of production support.
• Work with batch processing and scheduling, including developing and troubleshooting jobs using Control-M and related tools.
• Contribute to a major modernization effort focused on moving applications from COBOL/VSAM/DB2 toward Java, Python, and Oracle.
• Help with application transformation and integration as the team introduces newer development practices and technologies.
• Work closely with developers, product teams, business partners, and globally distributed teams to understand requirements and deliver solutions.
• Participate in daily standups and knowledge-sharing while helping document existing systems and processes.
• Explore AI-assisted development tools to improve development efficiency and support modernization efforts.

Experience

• 7+ years of Mainframe Development experience
• Strong hands-on experience with COBOL, JCL, DB2, VSAM, and CICS
• Experience with Control-M, MQ Series, and Easytrieve or REXX
• Strong understanding of both batch and online processing
• Experience troubleshooting production issues and supporting enterprise applications
• Previous modernization/transformation experience is required
• Experience with Java, Python, Oracle, APIs, cloud, or hybrid environments is a plus
• Financial services experience is highly preferred
• Strong analytical, troubleshooting, and communication skills
• Bachelor's degree required