How do you handle disagreements with your manager about technical decisions? I’ve learned to pick my battles and always come with data instead of opinions when I do push back. It doesn’t always work, but it at least keeps the conversation productive. How do you approach it?

I'm a junior engineer, but I inherited a project mid-construction because the designer left. I wasn't around for the early phases, but now I’m running the site meetings. I'm stressed about the technical gap and being asked questions I don't know the answers to. I don't want to appear clueless in front of the clients, even though I am. Is it okay to say that I don't know, but I will get back to them? Or does that look unprofessional?

Do you think engineers are better at solving problems or preventing them? I think prevention is harder because success is basically invisible.

Do you think the best engineers are the ones who spot problems early or the ones who solve them quickly? I’m starting to think spotting them early creates far more value.

A senior engineer on my team is leaving, and our manager sent a link for a farewell gift card. She mentored me when I was a junior, so I want to chip in, but I can't see what others are giving and have never done this before. She makes great money if that matters. The default options are $20, $30, and $50. What's standard here? Is $30 enough, or should I go higher since she helped me so much?