Google Cryptographer (Entry Level) Interview Preparation Guide
Cryptographer
Google
entry
6 rounds
Updated 2/22/2026
Google's entry-level Cryptographer interview process typically includes an initial recruiter screening, technical phone screens focused on cryptographic fundamentals and algorithm design, and onsite rounds covering cryptography implementation, system design of cryptographic systems, and behavioral assessment. The process emphasizes mathematical understanding, coding ability, practical cryptographic knowledge, and problem-solving skills.
Interview Rounds
1
Recruiter Screening
30 min3 focus topicsculture fit
2
Technical Phone Screen - Cryptographic Algorithms and Coding
60 min5 focus topicstechnical
3
Onsite Round 1 - Cryptographic Fundamentals Deep Dive
50 min5 focus topicstechnical
4
Onsite Round 2 - Algorithm Implementation and Protocol Design
60 min5 focus topicstechnical
5
Onsite Round 3 - Cryptographic Systems Design and Research Awareness
50 min5 focus topicstechnical
6
Onsite Round 4 - Behavioral and Culture Fit
40 min5 focus topicsbehavioral