Senior Mainframe Developer - COBOL
First seen by Alion on Nov 14, 2026.
Work on real production codebases with global AI labs. LearnTube.ai, backed by Google. Remote, open to full-time or project-based.
About the Role :
Key Responsibilities :
- Build, review, and enhance production COBOL code for AIfocused projects.
- Develop, maintain, and troubleshoot batch jobs, online transaction programs, and data handling routines on z/OS mainframe platforms.
- Participate in code reviews, clearly articulating design decisions and problemsolving approaches.
- Collaborate with crossfunctional teams to ensure highquality delivery and continuous improvement of mainframe services.
Required Skills and Experience :
- Minimum 3 years of handson COBOL development on mainframe environments.
- Proficiency with JCL, DB2, CICS, and VSAM on z/OS.
- Demonstrated experience working on largescale banking, insurance, or government systems.
- Strong analytical abilities and clear communication skills for code reviews and documentation.
Nice to have :
- IMS
- REXX, mainframe modernisation or migration projects.
Skills
Mainframe, COBOL, z/OS, JCL, DB2, CICS, VSAM, IMS