Google Cryptographer (Junior Level) Interview Preparation Guide
Cryptographer
Google
Junior
6 rounds
Updated 2/22/2026
Google's interview process for cryptography-focused roles typically follows a structured pipeline consisting of an initial recruiter screening, technical phone screening round(s) to assess cryptographic fundamentals and problem-solving ability, and multiple onsite interview rounds covering technical depth, protocol design, implementation security, and cultural fit. For a junior-level role, the process emphasizes learning potential, foundational cryptographic knowledge, hands-on implementation skills, and ability to work collaboratively with senior cryptographers and security teams.
Interview Rounds
1
Recruiter Screening
30 min3 focus topicsculture fit
2
Technical Phone Screen
60 min5 focus topicstechnical
3
Onsite Technical Interview 1: Cryptographic Algorithm Analysis and Implementation
60 min5 focus topicstechnical
4
Onsite Technical Interview 2: Secure Protocol Design and Cryptographic Systems
60 min5 focus topicssystem design
5
Onsite Technical Interview 3: Implementation and Code Review
60 min5 focus topicstechnical
6
Onsite Behavioral and Culture Fit Interview
45 min3 focus topicsbehavioral