Salary by Developer Type

alt text https://insights.stackoverflow.com/survey/2020#work-salary-by-developer-type

Backend Roadmap

alt text https://roadmap.sh/backend

Basic Knowledge

alt text

What Languages Are Associated with the Highest Salaries Worldwide?

alt text https://insights.stackoverflow.com/survey/2020#technology-what-languages-are-associated-with-the-highest-salaries-worldwide

Most Popular Technologies

alt text https://insights.stackoverflow.com/survey/2020#technology-programming-scripting-and-markup-languages

Version Source Control

alt text

Database

alt text

Architectural patterns

alt text

System design

alt text

Reference Documentation:

How does the Internet work?

https://developer.mozilla.org/en-US/docs/Learn/Common_questions/How_does_the_Internet_work

Difference between webpage, website, web server, and search engine?

https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Pages_sites_servers_and_search_engines

What is HTTP?

https://dev.opera.com/articles/http-basic-introduction/

Browsers and how they work?

https://medium.com/@monica1109/how-does-web-browsers-work-c95ad628a509 https://www.verisign.com/en_US/website-presence/online/how-dns-works/index.xhtml

Web Hosting

https://en.wikipedia.org/wiki/Web_hosting_service

Memory Management:

https://www.tutorialspoint.com/operating_system/os_memory_management.htm

Database Normalization

https://techmaster.vn/posts/36270/chuan-hoa-normalization-la-gi-vi-du-ve-1nf-2nf-3nf-bcnf-database

SOAP vs REST vs JSON

https://raygun.com/blog/soap-vs-rest-vs-json/