I applied through an employee referral. I interviewed at Proton, privacy by default (Barcelona) in May 2026
Interview
The interview process consisted of an initial screening, an interview with the Engineering Manager, a pairing session/take-home assignment, a system design interview, and a final interview. I completed all stages of the process but did not receive an offer, as they decided to move forward with another candidate.
Interview questions [1]
Question 1
System design related to some of Proton's products.
I applied through an employee referral. I interviewed at Proton, privacy by default (Skopje)
Interview
The interview process was straightforward. First, there was a chat with a recruiter to check my English skills through both spoken and written questions. Next came a practical test where I had to solve a few hypothetical customer support scenarios. The final step was a joint interview with team managers to talk about skills, job expectations, and to answer any questions I had about the company.
7 steps to hire a Senior PM. HR confirmed it, and apparently the CEO has time to sit in on interviews. Massive red flags....
That energy should be spent shipping to improve the product