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Your first 90 days as an engineering manager

The first 90 days in a management role can make or break you. Here’s how to avoid the common traps and set yourself up for success.

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Sep 16, 2025

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3 min read

The first 90 days in a new management role can feel like drinking from a firehose.
You want to prove yourself, build trust, and make an impact—all at once.
That urgency often backfires.

Here’s how to approach it instead.

Don’t rush to change things

One of the biggest mistakes new managers make?
Coming in and immediately trying to “fix” everything.

I learned this lesson the hard way. Not everything needs solving—certainly not on day one. Sometimes what looks like a performance problem is actually a systems or alignment issue. Moving too quickly risks creating more problems than you solve.

Take the first month to listen, observe, and understand before you act.

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