Mainframe Master

Mainframe Master

Learn COBOL and Mainframe Skills, Step by Step

MainframeMaster.com is an educational website dedicated to teaching COBOL and enterprise mainframe technologies through clear, practical, and structured tutorials.

Despite being the backbone of global banking, insurance, government, and large-scale enterprise systems, mainframe technology remains difficult to learn. Documentation is often fragmented, outdated, or written for experienced professionals rather than beginners. As a result, new developers struggle to enter the field, and organisations face a growing skills gap as experienced mainframe engineers retire.

Mainframe Master solves this problem by providing approachable, well-organised learning content focused on real-world mainframe development. The site breaks down complex topics into easy-to-follow explanations, examples, and learning paths that guide users from fundamentals to more advanced concepts.

Technology · Business & Finance · Development

Features

COBOL programming, from core syntax to practical examples
JCL (Job Control Language) for batch processing
TSO/ISPF usage and navigation
CICS concepts, commands, and transaction processing
Mainframe fundamentals, terminology, and workflows
Common tools and practices used in enterprise environments

Use Cases

Mainframe Master is built for:

Beginners with no prior mainframe experience
Students and graduates exploring enterprise computing careers
Developers transitioning into COBOL or mainframe roles
IT professionals refreshing or expanding legacy system knowledge
Organisations looking to upskill junior mainframe staff

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Comments

John Smith

Mainframe Developer looking to share my ...

After 10 years of working on the Mainframe in Finance and Banking I wanted to share all the knowledge and experience that I have gained from my time working on the Mainframe and supporting 40 year old Cobol programs.

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