> It’s often a smart political tactic to make your work sound slightly more complicated than it really is. Otherwise you risk falling into the “you made it look easy, therefore we didn’t need to pay you so much” trap. But it’s foolish to actually do unnecessarily complicated work. Software is hard enough as it is.

Totally agree here with the part where "it’s foolish to actually do unnecessarily complicated work"!

But I'd say the ultimate job security is being known as someone who creates real value to the organization, and the way you do that is by putting in extra effort into understanding and communicating the business value of your work.

for example: the latency reduction is not just a latency reduction, it's an increase in x% in revenue.