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What should I do if one of my engineers is underperforming?

underperformance

The Situation

A previously reliable engineer has started missing deadlines and producing lower-quality work.

The Answer

Start by assuming there’s a reason, not a problem person. Underperformance is usually a signal—something has changed. That could be workload, unclear expectations, personal issues, or loss of confidence.

Have a direct but calm 1:1. Focus on specific observations, not judgments: missed deadlines, rework, or gaps in communication. Then ask open questions: “What’s changed recently?” or “Where are things feeling difficult?”

Clarify expectations. Many first-time managers skip this and assume alignment. Be explicit about what “good” looks like—timelines, quality, communication.

Agree a short improvement plan. Keep it simple: 2–3 measurable outcomes over the next 2–4 weeks. Check in regularly. This isn’t a one-off conversation.

If performance improves, great. If not, you now have a clear record and can escalate appropriately. The key is early, structured intervention—not waiting until it becomes a formal issue.

What to Do Next

  • Schedule a focused 1:1 within 48 hours
  • Prepare 2–3 specific examples of the issue
  • Ask open questions to understand root cause
  • Agree a short, measurable improvement plan
  • Set weekly check-ins to review progress

Common Mistake

Avoiding the conversation and hoping performance improves on its own.

Source: Based on common first-time manager scenarios

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