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Interzero interview questions
based on 8 ratings - Updated Mar 31, 2026
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Glassdoor users rated their interview experience at Interzero as 50% positive with a difficulty rating score of 1 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Administrative Assistant and Data Entry rated their interviews as the hardest, whereas interviews for Administrative Assistant and Data Entry roles were rated as the easiest.
The hiring process at Interzero takes an average of 1 day when considering 2 user submitted interviews across all job titles. To compare, the average duration of hiring at similar companies like BlackRock, Inc. is 14 days, Fabricated Software, Inc. is 2 days, and Apple Inc. is 21 days. Candidates applying for Administrative Assistant had the quickest hiring process (on average 1 day), whereas Administrative Assistant roles had the slowest hiring process (on average 1 day).
Im Bewerbungsgespräch wurden fast gar keine Fragen gestellt, und auf die Stelle sowie die Aufgaben wurde kaum eingegangen. Meine Fragen wurden kaum beantwortet, zudem waren die Aussagen insgesamt verwirrend und gegensätzlich. Man hatte insgesamt das Gefühl, dass Gespräch nur Alibi war und das Unternehmen keine Lust auf irgendwelche Fragen hatte, nicht das die weniger schöne Wahrheit zum Vorschein kommt. Ein persönliches Kennenlernen wurde ebenso nicht angeboten. Bereits am nächsten Tag nach dem Gespräch wurde eine Zusage ausgesprochen und man wurde unter Druck gesetzt, dass man seinen Job sofort kündigen solle. Für den Tag der Zusage wurde ein Vertrag versprochen. Dieser Vertrag kam jedoch nie an, und es erfolgte auch keine entsprechende Absage oder Rückmeldung. Es scheint bei diesem Unternehmen bereits Praxis zu sein, Bewerber respektlos zu behandeln und sie einfach sogar nach einer Zusage zu ghosten.
I applied online. The process took 2 weeks. I interviewed at Interzero (Germany) in Sep 2025
Interview
Long, misleading interview process with shifting expectations
Review:
I went through Interzero’s hiring process recently, and while the people were polite and communicative, my overall experience was disappointing and felt inconsistent.
The stages unfolded as follows:
- An initial “get to know each other” interview, which unexpectedly included technical questions.
- After that call, I was told that while I was a promising candidate, the role might be a better fit at a mid-level rather than senior.
- Next, I was asked to complete a take-home coding assignment, presented as an alternative to a live coding session. This required a full day of focused effort.
- Following the take-home assignment, I was informed that the only role they could offer was a junior-level position with lower compensation than originally discussed.
- Finally, I received a message indicating that the next step would be a follow-up call with additional team members, framed as an opportunity to meet more of the team and ask questions to get a sense of the work environment. In reality, this turned into another live coding interview, contradicting the earlier statement that the take-home task replaced that step.
Key concerns:
Shifting role definitions: senior → mid → junior, with corresponding compensation adjustments.
Contradictory communication: the process was framed as “no live coding, instead a take-home,” yet another technical evaluation was required unexpectedly.
Time investment vs. outcome: after a significant effort, the final feedback initially stated only that my “skill set is not the best match for the specific requirements of this position” and that there wasn’t “a sufficient match with [their] products approach for the upcoming challenges,” with no actionable or detailed feedback provided until I requested it.
Conclusion:
While the people I met were friendly, the process itself felt inconsistent, misleading, and disrespectful of candidates’ time. Future applicants should clarify exactly what each stage involves, confirm role and compensation expectations up front, and be prepared for unexpected changes during the process.
Interview questions [1]
Question 1
1. What is the difference between stateless authentication and session-based authentication?
2. What is the difference between unit tests and integration tests?
It was a technical product management interview with the VP Product & Tech. The focus was on challenges in product discovery, prioritization, team engagement (e.g. engineers not joining discovery), and leadership/coaching experience.
The feedback was positive during the interview since he said there was a strong fit and that they would return with feedback in two weeks. It has now been over a month, and despite follow-ups with both the VP and HR, I haven’t received any response.
Interview questions [1]
Question 1
challenges in product discovery, prioritization, team engagement (e.g. engineers not joining discovery), and leadership/coaching experience