Senior Software Engineer applicants have rated the interview process at Sonar with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 43% positive. To compare, the company-average is 33.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Senior Software Engineer roles take an average of 23 days to get hired, when considering 7 user submitted interviews for this role. To compare, the hiring process at Sonar overall takes an average of 33 days.
Common stages of the interview process at Sonar as a Senior Software Engineer according to 7 Glassdoor interviews include:
Phone interview: 29%
Skills test: 21%
One on one interview: 17%
Personality test: 13%
Presentation: 8%
Group panel interview: 8%
Background check: 4%
Here are the most commonly searched roles for interview reports -
I applied through a recruiter. The process took 4 weeks. I interviewed at Sonar (Vilnius) in Oct 2022
Interview
The interview consisted three steps (apart from recruiter call): 1. 30 min chat with an engineer about some Java fundamentals. 2. 3 hours technical assessment - work on a problem together with two engineers in iterations. Very enjoyable. 3. 2 hours psychological torture (culture/values) interview with HR (who call themselves people and culture gardeners). Up until the third step, the feedback came within hours and the next round was arranged. However, HR took more than a week to get back and they replied that "feedback is very important to them" and "that's why they say exactly why they rejected a candidate". And the reason was (hold your breath) - "specific communication at Sonar". What? Another thing to note - the recruiter was aware that I'm working remotely and have no intention to work from their Geneva office. They said that the team is totally fine with that, but then after the second technical interview, after I received very positive feedback from the engineers, I was invited to another call. There I got a warning that in the final step (which was supposed to be the offer call with their CEO), the CEO would pester me about how "remote doesn't work" and how "everyone should be working from the office", but I was told to just ignore that rant because "he's like that". That's "people and culture" for you! What a waste of time.
Interview questions [1]
Question 1
First part: equals/hashCode contract, some general Java chat that I can't recall - basics really Second part: Build a small interpreter for a subset of arithmetic expressions. Sounds tough, but the problem space is constrained enough that it's pretty straightforward if you know a bit how compilers work. The engineers are also very friendly and helpful throughout this step. Third part: For 2 hours HR reads questions like "tell me about a time you had a crisis at work and how you dealt with it" from the screen. Whenever I asked a clarifying question, they just read the same scripted question again. Feels like they don't understand what they're asking themselves and it's some scripted framework they evaluate your answers/reactions against.
Interview process is very well structured. But there are so many rounds.. like 5 to 6 rounds. There is one 3 hrs coding round without any break. Other than that everything was very good and it was really an informative session
I applied online. The process took 5 weeks. I interviewed at Sonar in Nov 2025
Interview
I've interviewed in October-December 2025. The whole process took ~ 5 weeks. It included 6 interviews (2 of them mostly technical) and 2 additional online tests. Despite so many interviews I felt rather relaxed and enjoyed the experience. All interviewers were very friendly and pleasant. The cool thing is that they changed the process and now they suggest several short behavioral interviews with different people. I liked it!
Interview questions [1]
Question 1
Rather standard q-s like:
- Why do you want to join us?
- Tell about disagreement.
- How would you described by the people from your last companies?
As well as some "check" questions about milestones in my CV.
The process took 2 weeks. I interviewed at Sonar (Austin, TX) in Nov 2025
Interview
30 min HR call
45 min tech screen
4 hour on-site 3 hours of which were spent locked in a conference room alone. Rudest experience I've had in my career.
Interview questions [1]
Question 1
The on-site question was pretty basic more designed to evaluate coding style than technical skill