Walk Me Through a Migration You Led That Needed Changes From Many Teams

Behavioral and LeadershipPrioritization and TradeoffsAsked atStaffPrincipalUpdated Nov 10, 2026

They're checking whether you can finish a migration that depends on teams with other priorities. Strong answers show how you made moving cheap, how you sequenced the teams, and how you got the last ones across so the old system could be turned off.

Rubric by Level

Senior

Led a migration across your team's services, with a dated plan.
Built tooling or a compatibility layer that made each move cheaper.
Handled a dependency on another team without stalling the whole effort.
Turned the old path off and names what it saved.

Staff

Led a migration across many teams, each with its own priorities and deadlines.
Made moving cheap enough that teams could say yes, and did the first few moves yourself.
Tracked progress in the open and had a plan for the long tail.
Got the old system turned off, with a date and a cost saved.

Red Flags

Left two systems running indefinitely with no plan to retire the old one.
Asked every team to repeat the same manual work with no tooling.
Has no story about the last few teams who resisted moving.

Follow-Ups to Expect

How did you handle the team that kept slipping its date?
How did you stop new work from landing on the old system?
How long did both systems run side by side, and what did that cost?

A Story Shape That Holds Up

Why Move
The cost or risk of staying on the old system.
Making It Cheap
The tooling and support that lowered each team's cost to move.
The Long Tail
The teams that lagged and how you got them across.
Turning It Off
When the old system went away and what that saved.