Be a Technical Tester

Testing is a “technical” discipline that is different to programming and testers add a lot of value to projects and it depends on the context they work in. But in general they need to have technical skills to get success in their job.  As a tester I believe, the only way I can do a good job (testing) is by understanding technical and functional aspects of product in detail.

A technical tester adds lot of value to the product by

• Understanding the architecture of the product
• Reviewing the code he needs to test
• Working with tools (testing tools) or scripts (to automate) to help his work
•  Debugging issues by troubleshooting them from logs or system feeds
• Being updated with technical aspects of infrastructure 

A test engineer should be at least be technical enough to do their job effectively and to talk the same language with the rest of your programming and testing peers.

Ref: https://martijndevrieze.files.wordpress.com/2013/06/waterfall-traditional-testing.gif