Initially, an HR called me directly for a quick 15-minute call about my background. It'd be more professional if they'd email beforehand about a possible call. The process took around 2-3 weeks from HR screening to interviewing with a hiring manager. Afterwards, the HR called directly about the result of the first stage interview and provided a short feedback.
Overall, everyone involved was friendly and communicative.
The interview process would look like: 1. HR screening, 2. Hiring manager interview, 3. Face-to-face interview with a case study.