Senior Cryptographer Interview Preparation Guide - FAANG Standards
Cryptographer
Senior
7 rounds
Updated 11/23/2025
This guide is based on general FAANG interview practices and may not reflect specific company procedures.
Senior cryptographer interviews at FAANG companies typically consist of 7 rounds over 4-6 weeks, starting with recruiter screening and progressing through multiple technical evaluations focused on cryptographic algorithm design, protocol implementation, system architecture, and leadership. Each round is designed to assess increasingly complex problem-solving, deep mathematical foundations, practical implementation skills, and ability to influence and mentor in cryptographic initiatives.
Interview Rounds
1
Recruiter Screen
30 min4 focus topicsbehavioral
2
Technical Phone Screen
60 min5 focus topicstechnical
3
Cryptographic Algorithm Analysis On-site Round
75 min5 focus topicstechnical
4
Protocol Design and Implementation On-site Round
90 min5 focus topicstechnical
5
Cryptographic Systems Architecture and Security Analysis On-site Round
90 min5 focus topicssystem design
6
Behavioral and Leadership On-site Round
60 min5 focus topicsbehavioral
7
Hiring Manager/Bar Raiser Round
60 min3 focus topicsbehavioral
Additional Information