Just finished the EM loop at Slack and got an offer (accepting). I went through this as a hiring manager candidate so the bar is different from IC. Sharing because I couldn't find much detail specific to the EM track.
Total rounds: 6 over about 3 weeks.
Recruiter screen - 30 min. Standard: background, comp range, why Slack, timeline. Nothing tricky. My recruiter was responsive, which not every company can say.
Hiring manager screen - 45 min with a director. Heavy on leadership philosophy. They wanted concrete examples of times I'd changed my mind based on team feedback, not just "I listen well." If you're coming from a bigger org you'll be asked how you adapt to a faster-moving environment.
Technical screen - Yes, EMs code here. Was a light Leetcode-ish problem but the focus was really on how I talked through tradeoffs. Correctness mattered, but so did communication. Medium difficulty, maybe LC medium. Don't neglect this round.
People leadership round - 60 min with two senior EMs. Lots of behavioral. STAR format helps. They probed hard on: managing underperformers, disagreeing with senior leadership, coaching engineers who are technically strong but struggling on communication. Be specific, not vague.
Cross-functional round - Paired with a PM and a designer. They gave a scenario: team is behind, PM wants to cut scope, one engineer is resistant. How do you handle it? This is basically a judgment and communication test. I spent more time clarifying the scenario than answering, which they seemed to like.
Bar raiser - 1 hour, open format. Asked about things on my resume I hadn't talked about yet. Some light system design about how I'd architect a team process, not technical infra. Ended with values alignment questions.
The debrief took about a week. Offer came 3 business days after I was told I cleared the bar raiser.
For level: I came in as a senior EM (manages one team of 6-8) and that's what the offer reflects. If you're aiming for group EM you'd need a different set of examples around managing managers.
Happy to answer specifics.