Very bad experience. Slack Hr does not care about giving you call and feedback. Even if you perform well they would just go silent and they would simply say we would not proceed for this position. They ask pretty simple question in technical coding...they give slack.db postgresql which has few tables and they would ask to write query then same query run through any language programmatically. Typical query. Slack might be good in other places, but in india they are like any other average startup. Not a good vibe. Hr is pathetic.