Cobol Training
Learning Cobol is tough. Practicing it is even harder. That’s why I created this training.
I have designed a course that covers all the requirements to help you become a confident mainframe developer.
Practice makes perfect
The Only Training That Includes Mainframe Access
Everything you need to master Cobol and the mainframe ecosystem. All in one place.
With Mainframe Access
Practice on a real mainframe, just like in the enterprise world.
100% Video Training
Learn at your own pace with clear, step-by-step video lessons
Trainer Support
Ask questions anytime, get personalized feedback anytime.
Who am I?
Kévin Lhuillier
💼 Cobol Developer – 📍 Lille, France
I’m a mainframe developer with 10+ years of experience. My goal is to get you up and running quickly with a pragmatic, hands-on approach.
10+ years of experience
50+ Trained students
What is included
Learn Cobol the way it’s used in companies
Cobol programming from scratch
DB2 for database operations
CICS for transactional systems
JCL to manage jobs
VSAM, TSO, and ISPF for working on mainframe systems
Self-paced training
Follow the course anytime, at your own pace
Inside, you will learn step by step, even the concepts that many Cobol developers working today don’t fully master.
Teams support
Your are not alone
I remain fully available on Teams to answer your questions. You’ll have a dedicated space where you can communicate with me either in writing or via calls.
Project
You will code a banking application
You will be asked to build a banking application to put your knowledge of COBOL, CICS, DB2, and JCL into practice.
The Learning Path
Learn Step By Step
Master the Mainframe, one module at a time.
step 1
Getting Started
Learn how to navigate and edit files in the mainframe environment using TSO and the ISPF interface.
step 2
Hello World
Write, compile, and run your very first COBOL program on a real mainframe.
step 3
Cobol Basics
Master the fundamentals: data types, variables, control structures, and procedural logic.
step 4
JCL Basics
Discover Job Control Language basics to run COBOL programs and manage batch jobs.
step 5
Files and Libraries
Understand datasets, partitioned libraries (PDS), sequential files, and how Cobol uses them.
step 6
Cobol Advanced
Go deeper: work with arrays, strings, decimals, computational data types, copybooks and subprograms.
step 7
DB2 with Cobol
Learn how COBOL interacts with relational databases using embedded SQL and DB2 essentials.
step 8
JCL Advanced
Advance your JCL skills: procedures, conditional execution, and advanced parameters
step 9
CICS Programming
Start working with online transaction processing: screens, programs, and CICS commands.
step 10
Project - Banking App
Put everything into practice by developing a complete banking application, just like in the real world.
soon
Working with VSAM
Create and manipulate VSAM datasets, key for high-performance data access on the mainframe.
soon
Managing GDG Files
Work with Generation Data Groups to handle versioned datasets and automate workflows.
Pricing
Enroll Now.
To make sure every student gets quality support, I open only few seats each month. If the spots are already taken, you can join the waiting list—this way you’ll be notified as soon as new seats become available.
Cobol Developer Training
€39/ month
Access to all modules
Quizzes, exercises, and a final project
Mainframe Access
Personalized feedback on exercises
Support on Teams with the instructor
Students Testimonials
What Our Students Say
Trusted by learners from all around the world.
The course is good especially because you have the possibility to do your exercises in real time on the mainframe. Kevin helped me every time I encountered problems in performing the exercises.
Gabriel S.
From Romania
As a developer switching to mainframe, this course gave me exactly what I needed. Highly recommended.
Michael T.
From USA
For now the content is excellent! I am waiting for the rest of the modules to be available.
Rahul M.
From India
Very well-structured. Mix of theory and practice makes learning easy.
Rajesh P.
From India
I would highly recommend this training to anyone looking to start or grow their career in mainframe development.
Carlos P Mendez
From Spain
The instructor explained complex concepts like JCL, DB2, and CICS in a clear and practical way.
Priya S.
From India
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