Senior Mainframe COBOL Developer | z/OS, High-Volume

MACHINE LEARNING TECHNOLOGIES LLC; Charlotte (NC); On-site; USD 110,000 - 150,000; Full time

Job summary

Machine Learning Technologies LLC in Charlotte, NC seeks a Mainframe Developer to design, develop, test, and maintain COBOL applications supporting core banking functions. You will participate in end-to-end SDLC activities and support batch and online processing in high-volume environments.

The role requires strong COBOL on z/OS skills, JCL/VSAM knowledge, and experience with DB2/IMS. Collaboration with cross-functional teams and adherence to Agile practices are essential.

Qualifications

• 5+ years of Software Engineering experience or equivalent demonstrated experience.
• Strong hands-on COBOL development on z/OS.
• Experience with mainframe batch and online processing.
• Familiarity with JCL, VSAM, and mainframe data structures.
• Experience with DB2 and/or IMS databases.
• Experience with GitHub Copilot and AI tooling.
• Familiarity with Endevor or similar source control tools.
• Experience supporting production systems in regulated or mission-critical environments.

Responsibilities

• Design, develop, test, and maintain mainframe COBOL applications supporting core banking functions.
• Participate in end-to-end SDLC activities from requirements analysis to deployment and support.
• Develop and support batch and online processing workflows in high-volume environments.
• Analyze and resolve complex production incidents and perform root-cause analysis.
• Contribute to application enhancements, regulatory changes, and modernization initiatives.
• Collaborate with business partners, architects, QA, and infrastructure teams.
• Participate in release planning, production readiness, and post-release validation.
• Ensure applications meet security, risk, compliance, and audit requirements.
• Support operational excellence, including performance tuning and availability improvements.
• Participate in Agile delivery processes and enterprise SDLC standards.

Skills

Software Engineering

Mainframe experience

Troubleshooting

Agile SDLC

Education

Bachelor’s degree in Computer Science or related

Tools

JCL

VSAM

DB2

IMS

Endevor

GitHub Copilot

Job description

Machine Learning Technologies LLC in Charlotte, NC seeks a Mainframe Developer to design, develop, test, and maintain COBOL applications supporting core banking functions. You will participate in end-to-end SDLC activities and support batch and online processing in high-volume environments.

The role requires strong COBOL on z/OS skills, JCL/VSAM knowledge, and experience with DB2/IMS. Collaboration with cross-functional teams and adherence to Agile practices are essential.