Glassdoor users rated their interview experience at Sonar as 100% positive with a difficulty rating score of 2 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Software Engineer(Internship) and rated their interviews as the hardest, whereas interviews for Software Engineer(Internship) and roles were rated as the easiest.
The hiring process at Sonar takes an average of 14 days when considering 1 user submitted interviews across all job titles. Candidates applying for Software Engineer(Internship) had the quickest hiring process (on average 14 days), whereas Software Engineer(Internship) roles had the slowest hiring process (on average 14 days).
premier screening RH, en ligne, sympathique : positif
suivi d'un test technique simple sur codility (très similaire au test demo du site)
un autre test tech plus complexe et surtout plus long
processus interrompu car candidats short-listés en phase 6
I applied through a recruiter. I interviewed at Sonar (Geneva) in Dec 2025
Interview
J’ai eu une expérience positive avec le processus de recrutement. Le processus était rapide, bien organisé et fortement automatisé, ce qui a rendu chaque étape fluide et efficace. J’ai particulièrement apprécié la rapidité des retours. La communication était claire, transparente et professionnelle tout au long du parcours. Cette efficacité témoigne d’une organisation moderne et respectueuse du temps des candidats.
I applied online. I interviewed at Sonar in Nov 2025
Interview
I am genuinely disappointed by my interview experience with Sonar. The staff I met were incredibly friendly, and I truly believe they have a strong product that would have been exciting to sell. Unfortunately, the interview process itself didn't live up to that positive first impression.
The company utilizes a lengthy five-to-six-round interview process. By the third round, candidates are required to build a project and deliver a 20-minute presentation. I was only given a few days to scramble and put this together, but it went fine.
What really disappointed me, however, was what happened next. After dedicating that time and effort, I was completely ghosted, receiving no rejection email or follow-up of any kind. When a company asks candidates to spend their personal time working on a project, it should come with a baseline level of human courtesy.
Interview questions [1]
Question 1
How do you handle a customer emergency when you can't get ahold of leadership for an answer?