Started off as a good experience, the call with the recruiter was professional and informative, then the interview with the cco went well. The final.interview with the cco and one of the founders was horrible. The cofounder was extremely rude, when I asked how people handle change - as the role would be new and would imply implementing changes I thought this was important to know - his reply was generic saying that as a startup they go through changes constantly. Then I said that my question is more about how people react to change he became very rude and said 'we are not kids we just accept change'. Extremely unprofessional. No wonder the position is still open on LI months after it was first posted
I applied online. I interviewed at OPTIML (Zürich) in Feb 2026
Interview
The interview process is fairly structured and includes four stages, with two technical interviews. While it is somewhat lengthy, the team is responsive and efficient when it comes to scheduling and communication.
I applied for a role that only partially overlapped with my current experience, which made some parts of the process more challenging for me. The interviews placed a strong emphasis on technical knowledge and tooling and included two small traditional software engineering coding challenges.
Interpersonally, the second interview felt relatively transactional. There was less focus on prior experience, real-world problem-solving approach, or growth potential, which surprised me given the context. The interview style was similar to that of larger tech companies.
I appreciated the prompt feedback after the interview.
I applied through other source. The process took 3 weeks. I interviewed at OPTIML (Zürich) in Sep 2025
Interview
Der Bewerbungsprozess bestand aus mehreren virtuellen Gesprächen, darunter zwei technische Interviews und ein Gespräch zum kulturellen Fit. Der Ablauf erstreckte sich über mehrere Wochen. Das Feedback erfolgte nach einiger Zeit. Die technische Aufgabe war anspruchsvoll, stand jedoch nur teilweise im Zusammenhang mit der ausgeschriebenen Position. Der gesamte Austausch verlief professionell und respektvoll.
Interview questions [1]
Question 1
Wie würdest du eine angepasste Version von JSON.stringify implementieren, die bestimmte private Felder eines Objekts ignoriert und den Rest serialisiert, um HTTP-Requests anhand des Request-Bodys zu cachen?