Technical managers exist. Yes, it's a manager's responsibility to understand the field he's working in. He doesn't need to be a more skilled engineer, but he needs to understand what his/her people are saying.

[–] Lembot_0006@programming.dev 0 points 21 hours ago (3 children)

but he needs to understand what his/her people are saying.

It isn't enough to detect deliberate lies from an engineer like in this case.

[–] ano_ba_to@sopuli.xyz 3 points 21 hours ago (2 children)

There are ways to know. Did the manager ask for proof of concept? Asked for performance tests of the update and compared it to existing/baseline?

[–] Lembot_0006@programming.dev 0 points 21 hours ago (1 children)

Did the manager ask

How can I know? Plus engineer could easily lie as he did it right from the start.

[–] ano_ba_to@sopuli.xyz 2 points 20 hours ago

Of course don't just ask the engineer. Any piece of code written by the engineer should ultimately be tested by a separate testing team before getting pushed to production. Ideally you have a performance and regression testing team that would help evaluate the changes being introduced and how it compares with the existing.