Best answer: both, with examples of when each fits.
Balance framework
- Independent: deep focus (modeling, debugging, writing DAG code)
- Team: design reviews, incident response, aligning metrics definitions
- Default: own your slice, sync on interfaces (schemas, SLAs, ownership)
Example outline
> I like owning a pipeline end to end, but I check schema changes with producers and review metric definitions with analysts. In incidents I communicate early; in coding I time-box focus blocks.
Fresher tip
Class projects: you wrote the transform; teammate owned viz; you synced on the join key.
Interview tip: Extreme "only alone" or "only group" answers raise flags.