I’d go so far as to say that you and this other engineer both fill vital roles on your team. It’s not that you’re right or he’s right; you’re both right.

I’ve been on teams where I needed to be the methodical engineer who carefully built critical infrastructure and agonized over every decision. I’m currently at a small startup that hasn’t yet reached breakeven, so I’m scrambling like crazy to build things our customers and investors will pay for. That’s what this team needs.

Thank goodness for both of you. Your team would be worse for it if they lacked either.

Could replace them both with an “overpaid” even-keeled and unemotional engineer who will make sure it fits just right…