Glassdoor users rated their interview experience at Celfocus as 100% positive with a difficulty rating score of 2 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for UX/UI Designer Intern and rated their interviews as the hardest, whereas interviews for UX/UI Designer Intern and roles were rated as the easiest.
The hiring process at Celfocus takes an average of 14 days when considering 1 user submitted interviews across all job titles. Candidates applying for UX/UI Designer Intern had the quickest hiring process (on average 14 days), whereas UX/UI Designer Intern roles had the slowest hiring process (on average 14 days).
I interviewed at Celfocus (Lisbon, Lisbon District)
Interview
Two interviews, one more general with an HR representative, then a technical interview with two members of the AppSec Team. The questions are simple, regarding basic topics in IT, Cybersecurity and AppSec in general. The final stage is a two exercise technical challenge that is very simple, and will pose as too easy for anyone minimally capable, but hard enough to cut out people with no actual knowledge.
Interview questions [1]
Question 1
What is your favorite kind of vulnerability to work with/exploit?
I interviewed at Celfocus (Cairo, Cairo Governorate)
Interview
The application had 2 questions that are answered via videos, then a call interview with the hr and if you passed you go for an on-site interview with 2 seniors and an hr.
Interview questions [1]
Question 1
A few easy questions about data structures and databases.
I applied online. I interviewed at Celfocus in Apr 2026
Interview
There were 2 online interviews which I believe was the entire process, after which you would receive an offer. First one was with one person, second was with 2. In my case, I did not receive an offer. Overall, pleasant.
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