I went through the eBay EM loop about four months ago for a manager role on one of their marketplace teams. I'll share what I saw because there isn't a lot of specific info out there for the manager track.
The loop was five rounds: recruiter screen, hiring manager screen, two behavioral/leadership rounds, and one technical architecture round. No coding. For the senior EM level they explicitly said they don't do coding rounds but they DO expect you to go deep on technical trade-offs.
The behavioral rounds were the real substance. They use a structured STAR format and they're specific. Not 'tell me about leadership' but 'tell me about a time you had to let someone go and how you handled the aftermath' or 'tell me about a project where you missed a deadline and what you changed.' The interviewers were taking detailed notes and occasionally paused to ask clarifying questions mid-answer. Be ready to go multiple levels deep on a single story.
What they emphasized throughout: eBay is still a big ship and velocity matters. They asked repeatedly about how I get teams unstuck, how I handle scope creep from product partners, and how I maintain quality while moving fast. 'Move fast without breaking trust' was a phrase one interviewer used.
The technical architecture round wasn't a system design interview in the traditional sense. They wanted me to walk through a technical decision I'd made as a leader: what the options were, how I involved the team, how I weighed the trade-offs, and what happened. It was a leadership story that happened to be technical.
Compensation for senior EM in San Jose: my offer was around $420K-$450K total (base + RSU + bonus). RSUs vest 4 years. No sign-on in the first offer, I negotiated a small one. Equity was the weakest part compared to FAANG offers I had but the role itself was appealing.
Cycle time was 8 weeks start to finish. One thing: eBay moves slower than startups but faster than most large companies. The loop itself was well-organized.