Update index.md (#29028)

Added some more examples of tech jobs

guide/english/working-in-tech/index.md

@@ -1,8 +1,8 @@
 ---
 title: Working in Tech & Information Technology(IT)
 ---
-## Working in Tech and IT
 
+## Working in Tech and IT
 A wide variety of technology-related fields such as web development, design, data science, infrastructure support, information security, and product management are often lumped into the catch-all term "tech" or IT. 
 
 This section will focus on various aspects of working in tech, such as the ways in which teams cooperate, how to give talks and what code reviews are. We will discuss the additional career challenges that under-represented minorities and people from non-traditional education backgrounds face. This includes issues such as sexism and ageism that have been particularly prevalent in certain industries and organizations. 
@@ -14,6 +14,8 @@ The field of computer security is growing at a rapid rate every year.  As more p
 - Software Developer
 - Computer Systems Analyst
 - Web Developer
+  - Front-end developer
+  - Back-end developer
 - Software Engineer
 - IT Manager
 - Computer Systems Administrator
@@ -28,7 +30,8 @@ The field of computer security is growing at a rapid rate every year.  As more p
 - Project manager
 - Data Analyst
 - Data Scientist
-
+- Database Manager
+- Mobile app Developer (Android and IOS)
 
 ### Books
 - [About Face: The Essentials of Interaction Design](https://www.amazon.com/About-Face-Essentials-Interaction-Design-dp-1118766571/dp/1118766571/)