6 rounds of the hiring process (CV check, screening, take-home test, tech 1.0 (discussion about the code of the take-home test), tech 2.0 (system design), and managerial interview) One of the best hiring processes I have ever had in my life:

• Fast feedback (in less than 24 hours) after every step
• Respectful people
• Learned a lot from every stage (especially the system design phase)

Notes:

• Be honest and precise, these guys will ask you about the details of the details.
• I passed all the interview stages, but unfortunately didn't get the offer at the end because of some bad points in both technical and behavioral interviews, I will improve my skills and definitely re-apply after 6 months.

Take-home test: Medium network application system (but they really care about the structure and the README file, the security concerns, and how you could deploy it).

Tech1.0:

• Discuss the code
• Security Questions (especially about TLS)
• Networking Questions
• Observability, service meshes, K8s

Tech2.0: A typical system design interview but with so many details, especially with security concerns.

Managerial:

• Tell me about something I can't see in your CV.
• What do you expect from your manager?
• Tell me about a conflict you had with your teammates and manager?