Sr Manager - Purchasing
Posted Aug 26, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a time material shortages threatened customer deliveries. What did you and your team do?
What they are checking: Whether they lead a coordinated response under pressure instead of having every buyer chase parts on their own.
Describe a time you had to deliver tough feedback to someone on your team.
What they are checking: Whether they address performance directly and fairly, which a senior manager must do well.
Tell me about a supplier relationship you turned around.
What they are checking: Whether they can rebuild trust and performance with a supplier rather than simply replacing them.
What would you do
One of your buyers is consistently expediting and paying premium freight. How do you handle it?
What they are checking: Whether they look for the root cause in planning or supplier issues rather than simply blaming the buyer.
Leadership asks you to cut inventory 20 percent without hurting on-time delivery. Where would you start?
What they are checking: Whether they can find inventory reductions with data, such as lead times, safety stock and order policies, instead of across-the-board cuts.
About the work
How would you organize a purchasing team that supports many customer programs with very different volumes and requirements?
What they are checking: Whether they can structure buyers around programs or commodities thoughtfully, not just assign by headcount.
In contract manufacturing, purchasing often buys parts on the customer's behalf. How does that change how you manage liability for excess and obsolete inventory?
What they are checking: Whether they understand customer liability agreements and how buying ahead of firm demand creates inventory risk.
Which metrics do you use to manage a purchasing team's performance?
What they are checking: Whether they track things like on-time delivery, past-due orders, inventory and price variance, and know how buyers can game them.
How do you work with planning and sourcing so purchasing isn't just reacting to bad signals from MRP?
What they are checking: Whether they understand that clean planning data drives good purchasing and they'll fix the inputs, not just the outputs.
How do you make sure your team follows compliance requirements like export controls and conflict minerals reporting?
What they are checking: Whether they treat compliance as built into the process, since aerospace and defense customers expect it.
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Practice this out loudThe full job description
As published by Plexus.