One of the worst experiences of all time. The freelance recruiter for India (I don't want to name her) is very high-headed and will not bother to contact you.
It seems they don't really bother to respond to the online application process. This shows the kind of values people carry within the organization.
The following metrics were computed from 1 interview experience for the Slack Software Developer role in India.
Slack's interview process for their Software Developer roles in India is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Slack's Software Developer interview process in India.