About the Instructor

My name is Sandeep Kumar

I have more than 12 years of experience on Mainframe and Technologies like Python, Java, PHP, Perl, Regular Expressions, JavaScript and much more. I have more than 12 years of experience as an Instructor.

I completed my Bachelor of Technology(B-Tech) in Computer Science and Master of Technology(M-Tech) in Software Application and Development from Vellore Institue of Technology(VIT).

Currently, I am the Founder of a Training company in India which provides online training on multiple IT and Non-IT related courses.

I also have a team of professionals to provide services like Website Development, Website Design, Logo Design, Mainframe consultation, Freelancing Services, Digital Marketing and much more!!

Before starting my career as an Instructor, I have worked for all types of projects like Development, Maintenance and Support projects. In my career, i have worked on Mainframe with Java, Mainframe with Perl(Regular Expressions), Mainframe with PHP, Mainframe with Unix, Python, PHP, and so on. I worked for multiple Fortune 500 companies of the world including  Fortune 1 company of the world which is a major retail giant in USA. When i was working for them, I  was part of the team which use to monitor more than 5000 stores across the world using Mainframe.

I used Mainframe in various sectors like Retail, Insurance, Banking and Share market. I have worked on many projects end to end. I am also an experienced person in Website Development as well.

I am an Expert on Mainframe(TSO/ISPF, JCL, VSAM, Cobol, DB2, CICS, IMS, PL1). Along with Mainframe, I am an IT consultant for Big Data, Cloud Computing, Complete Web Development(Java, PHP, Python, and much more)

I know 3 major language – English, French and Hindi. I have taught multiple students on French as well.


Enrolled Students


So many academic goals that we expect you to achieve.


Improve your skills for career growth from the Best Mentor and Industry expert.

Self Learning

More you Do, More you Learn. Learn with Exercises & Assignments


Enhance your knowledge with real world scenarios and data sets.


Quizzes will be there to test your knowledge.

Students List

Trainool servers Students from more than 130 countries across the globe


We reply to each question within a day from Monday to Friday

What Students Say

What our Students has to say about Trainool

Osvaldo Augusto Eduardo F

Osvaldo Augusto Eduardo F.

Student of COBOL Course

“I already have some knowledge in mainframe platform working as COBOL Developer during part of my career. This course has helped me to refresh some of the concepts. Also, I have learned new features from COBOL that I consider useful for who develops in this language. This course is a guide for who wants to learn this powerful programming language, showing COBOL commands from the level beginner to advanced.”

Gonzalo G

Gonzalo G.

Student of COBOL Course

“Very satisfied. In addition, the teacher has always been very fast and very professional helping the student. ”

Alvin A.

Alvin A.

JCL Student

“I had a 8 hours course on JCL before enrolling for this one. I learned more from this 4.5hrs than from the previous one. Kudos to Mr. Sandeep Kumar.”

Manuel Flores J

Manuel Flores J.

JCL Student

“Thank you I am now ready to begin my journey on Z systems, I now feel confident on the JCL usage.”

Priyadarshini G.

Priyadarshan g.

Student of COBOL Course

“Very good explanation.Easy to follow.”

Johan S.

Johan S.

Student of COBOL Course

“Very clear and well explained ”

Subscribe now and receive updates for new and latest courses and much more!

Trusted by over 60000+ students

Join our community of students around the world helping you succeed.