I applied through an employee referral. The process took 3 weeks. I interviewed at Amazon in Aug 2024
Interview
The interview was friendly but primarily concentrated on specific topics only. Unsatisfied with the interview! I am 100% sure interview didnt have time looking at my CV and experience . . . .
Interview questions [1]
Question 1
- What is redundancy, and how would you calculate it?
- What is LOTO (Lockout/Tagout)?
- What is a VFD (Variable Frequency Drive), and what is its purpose?
- Can you explain the refrigeration cycle and its processes?
- What is power factor correction, and what are active power and reactive power, including their units?
- What are the different types of UPS (Uninterruptible Power Supply)?
- What is dehumidification, and what are its effects?
- What are CRAH (Computer Room Air Handler) and CRAC (Computer Room Air Conditioner), and what is the difference between them?
I applied online. I interviewed at Amazon (Germany) in Dec 2025
Interview
The interview process started with an initial screening call with a recruiter. It was mainly focused on my background, experience, and motivation for applying to the DCEO Technician role. However, I was also asked a few unexpected technical questions related to data center operations and troubleshooting scenarios. The conversation was professional and structured, and it gave me a good overview of the next steps.
Interview questions [1]
Question 1
How would you troubleshoot a server or network device that suddenly went offline in a data center environment?