I applied in-person. I interviewed at ThreatSpike Labs in Jan 2026
Interview
It was a nice interview. The interviewer reacted positively to all my answers, which helped relieve my nerves pretty well. The questions were fundamental, and I felt like I answered almost every question, but I still got rejected. I think they were looking for some more advanced answers.
Interview questions [1]
Question 1
Networking
1. TCP vs UDP
2. SYN Flood
3. ARP
4. VLAN
5. SWITCH
OS
1. User space vs Kernel Space
2. how the user communicate from user space to kernel space
3. binary search time complexity
4. hash table time complexity
Security
1. three types of XSS, what are they
I applied through other source. I interviewed at ThreatSpike Labs (London, England) in Oct 2025
Interview
The interviewer was a social media influencer wearing comfort clothes and eating a meat stick (slimjim). They seemed surprised that I was wearing business casual for the interview. They asked very basic pop quiz type questions about programming.
Interview questions [1]
Question 1
Explain how system calls work in an operating system
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Application
I applied through a recruiter. I interviewed at ThreatSpike Labs (City of London, England) in May 2023
Interview
It was an online meeting interview. The interviewer were two security engineers from the company. The intereview started with some technical questions, then they asked me what do I usually learn about cybersecurity outside of courseworks and if I have any working experiences about cybersecurity. Finally, it ends with FAQ. Altogether was 30-40 minutes.
