If you have experience in Application operations and would like to deep dive into about reliability and performance, then look for "Site reliability Engineering(SRE)" course. This is developed by Google and is what you get when you treat operations as if it’s a software problem.
To know more about this , please navigate here sre.google. The following books are also available on this topic:
Since I preferred online course, I enrolled for this course in @coursera which talks more about creating SLI (Service level indicator), SLAs and SLOs for your critical applications and mobile applications. coursera.org/learn/site-rel…
More about the course: This is completely free of cost (unless you need a certification, you pay little extra), flexible timelines and completely online:
About the job opportunities, this is the average salary of the SRE engineer there are tonnes of opportunity in Germany as per @Glassdoor as well in India
About the certification, @devopsinstitute offers foundation and practitioner certifications , please avail them to enhance your resume and career opportunities ..
I came across this channel who teaches SRE basics in tamil. Was quite funny that he took Vadivelu comedies as case studies youtube.com/channel/UC1xcd…
Other YT channels
Finally, "class SRE implements Devops" if you can understand Java. #SRE#Devops#Google