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Mainframe: The Complete COBOL Course From Beginner To Expert (Udemy.com)

Become an Expert on COBOL Programs by coding it. Run COBOL Programs with JCL. Basic TSO/ISPF operations are also covered

Created by: Sandeep Kumar

Last updated July 2026

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What you will learn

  • Execute COBOL Program with confidence
  • Develop COBOL Programs along the way as you take the program
  • Build a strong knowledge base on COBOL from Scratch to Advanced level
  • To be able to clear the Job interviews on Cobol
  • Programmed to debug the program and to check for any errors for a program
  • Advance, boost and expand the skill set on COBOL if you have a fair understanding of COBOL
  • Redesign and code a Particular program in multiple ways
  • This course does not include VSAM.
  • This Course also include a section on COBOL-DB2 and I have coded some COBOL DB2 Programs as well.

How it compares

Against the other 1,182 rated Udemy courses in IT & Software on CourseDuck:

  • Rating4.3 out of 5higher than 20% of them
  • Reviews5,696#99 of 1,183 by number of reviews
  • Length9.5 hourslonger than 69% of them
  • Last updatedJuly 2026more recently than 81% of them

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Course Description

'Udemy COBOL Course with best ratings and review-Best Seller'.

-> Get the COBOL Certification which you can showcase in your CV.

-> Best  COBOL Online Training ever.

Join this course which is the best COBOL course on UDEMY. I will Code everything along the way!!!

"This is the Best Seller Course on Udemy and it is also the highest-rated course on Udemy"

“There’s a reason this course is a bestseller and highest rated on Udemy...”

Some of the Reviews from my students!!!!

"After taking the full Course, I guess it has all the necessary information. Really appreciate the hard work put in by the Instructor. I never thought that Mainframes will be easy."

"Sandeep, I really enjoyed the training offered: - TSO - JCL - Cobol Congratulations on the work, I have recommended the courses to several colleagues who are also starting on mainframes. Thank you"

"Perfect course for COBOL"


Captions

The Course has the most accurate Captions. Have a look.

Do you want to start on COBOL but have no experience with COBOL? 

If you have some prior knowledge of COBOL or if are a complete fresher, you are at the right place. The Course teaches you COBOL right from Scratch to an Advanced level.

What makes this Course unique and a Best Seller?

Well, the course has everything you need to master COBOL Programming. If you want to build a career in Mainframe, then COBOL is a 'MUST TO HAVE' skill.

There’s no risk involved in taking this Course!

This course comes with a 30-day money-back guarantee. I am sure that this is the best course on COBOL and you can compare the content provided in this course against any COBOL Course I guarantee you that you will not get such good structured content anywhere. Still, if you are not completely satisfied with the course, please let us know and we will provide a refund without asking any questions.

What if you are stuck?

I personally answer all the questions which are asked here. If you are stuck anywhere, ask a question or you can message me directly and I will answer all your doubts.

Are you getting updated content?

Yes, I keep updating the content to make sure, I provide all the information to my students.

Is CICS Included in this course?

No, this course does not include CICS at this point in time.


The Course is a complete COBOL course -

  1. The course starts with an Introduction to COBOL, its history, and versions of COBOL

  2. Data types, Structure, and various level clauses are covered in detail

  3. A complete demonstration of executing a program is shown

  4. How to compile and execute a program is covered with ease.

  5. All 4 DIVISIONS of COBOL are illustrated, edited, documented, and defined.

  6. Most of the programs are coded while explaining, tested, and debugged in front of you.

  7. The Quality ad Quantity of the course is great. It covers all the topics in COBOL starting from Scratch.

  8. Basic details of TSO/ISPF and JCL are also included along with COBOL.

  9. Multiple programs have been coded, assembled, and aligned to suit the theory part which we covered.

Note:

To understand the complete Mainframe, a professional must have COBOL skills on the Mainframe server

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Instructor Details

Sandeep Kumar

Hi, I’m Sandeep Kumar, an IT professional, instructor, and founder of a training company in India.


Years of Practical Experience:

I have 15+ years of experience in the IT industry, working across technologies such as Mainframe, Cloud Services, Python, Java, PHP, Perl, Regular Expressions, JavaScript, Web Development, and AI tools. Along with my technical background, I also have 15+ years of experience as an instructor, helping students and professionals build practical skills for their careers.


Job Title and Credentials:

I worked on different types of IT projects, including development, maintenance, production support, monitoring, automation, and end-to-end project delivery. I have worked with multiple Fortune 500 companies, including a Fortune 1 global retail company, where I was part of a team that monitored systems across more than 5,000 stores worldwide. Some of the Companies I worked for are -

- Cognizant Technology Solutions as  a Programmer Analyst

- Walmart as a Programmer Analyst

- Larsen & Toubro (L&T) - Senior Software Engineer

- Link Market Services - Tech Lead

- Unified Grocers - Tech Lead

- Cyient Limited

- NMDC, Hyderabad

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Reviews

4.3

5,696 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Jaime De Santiago on 8/20/2026

The subtitles are poorly generated. They do not match the words and just cause confusion rather than help no native English speakers to follow the lessons.

By Dirk Blankenagel on 5/19/2026

Was gelehrt wurde, war gut, da gibt es keine Einschränkung. Dass ich nur bei 75 % Tempo mitkommen konnte, ist auch nicht dem Referenten anzulasten. Doch das häufige Kindergeschrei und Bau- und/oder Straßenlärm im Hintergrund störten doch gewaltig.

By Johnny Coleman on 4/17/2026

I took this course as a refresher due to being away from COBOL for more than 10 years. It was thorough and allowed me to get back to my level of coding in COBOL and DB2.

By Catherine Lysaght on 3/13/2026

I completed this course as a refresher course. It was an excellent course and the hands on experience is a bonus.

By Rajaram Kishore on 1/3/2026

Excellent. This is very good from basic level to Expert Level. Tons of thanks to Sandeep

By Aaron Goff on 12/3/2025

Sandeep did an outstanding job of presenting the material. This was a COBOL refresher for me and I found it to be very well done.

By Daniel Cazares Beltran on 10/28/2025

Se requiere una plataforma para practicar lo aprendido.

By Shane Ingoe on 9/23/2025

I'm enjoying the way the presenter is writing the code, checking it and correcting errors as it helps me understand better

By Anonymized User on 12/19/2022

This is an excellent course for beginners and experienced people. It covers a wide range of topics in detail. But, could have provided resources also to refer.

By Derrick Morgado on 12/13/2020

So far it's a good course, but I wish we had the ability to have the slides given to us for printing. That way, we can write notes on it and not have to pause as often.

By Niket Sharma on 12/13/2020

Taught very well.

By P V Anantharamaiah on 11/7/2020

Well explained and good coverage!

Showing 12 of 157 reviews

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Quality Score

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Overall Score : 86 / 100