If an engineering team member isn't contributing as much, what would you do as a PM?

My first step would be to gather specific, objective data to understand the situation. I'd look at metrics like code commits, task completion rates, participation in team discussions, and code review activity. Once I have a clear picture, I would schedule a private, one-on-one conversation with the team member. The goal of this conversation is to understand their perspective, identify any potential roadblocks they might be facing (personal or professional), and explore how I can support them. This might involve clarifying expectations, providing additional resources, adjusting their workload, or offering mentorship. If the performance issues persist after these supportive measures, I would then involve HR and the engineering manager to discuss further steps, ensuring a fair and consistent process.