I applied in-person. I interviewed at Alarm.com (Tysons Corner, VA) in Jun 2026
Interview
3 step interview process. 1st was the recruiter, didn't really go into my work history. Next was a video interview with a senior manager. They seemed really big on ai assisted coding. The lat was a 4 hour in person interview with the first two focused on system design and the last a programing logic exam focused on c# Linq questions. I bombed that due to syntax which cost me the interview.
Interview questions [1]
Question 1
Design a supply delivery system. Key point was messaging queues.
I applied online. I interviewed at Alarm.com (Tysons Corner, VA)
Interview
This was a terrible process. The recruiter screen was OK but the next technical interview was bizarre (easily the worst one of my career). I have both interviewed numerous candidates and been interviewed myself several times. The interviewer was really inexperienced (less than a third of my overall experience) which is OK, but he was also very rigid in the interview format. I could tell that he had very little experience by how we responded to some of my questions (follow up and asking about the team/project).
It didn't feel like he read my resume ...there were a lot of "Uhhhh, so do you have experience in .... (thing on my resume)".
The actual technical part was unrelated to my background in the last 6 years and we never actually discussed anything in my background (past projects, tech, etc). The interviewer seemed confused to any follow up questions on these.
The behavioral part felt like ChatGPT interview questions.
At the end he went into the project and what they were doing. It turned out to be extremely relevant to my past experience but I had 3 minutes left in the interview and couldn't go into that in any detail. This kind of thing is the classic inexperience interviewer tell. Interviews should be flexible and highlight the best in the candidate. This person should really be re-trained on how to interview. At my previous companies, people with this little experience would not be interviewing people.
Interview questions [1]
Question 1
Leetcode: Maximum Length Substring With Two Occurrences
SQL Performance
Seemingly ChatGPT generated behavioral questions:
Tell me about a time where you went above and beyond
How do you handle a new teammate coming onto the team
1. Brief 20 minute call with recruiter
2. 40 minute call with Software Hiring Manager? Don't remember full title
They're VERY into LLM usage. To the point where they vibe code their software.
You've been warned.
Senior Software Engineer applicants have rated the interview process at Alarm.com with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 14% positive. To compare, the company-average is 51.3% positive. This is according to Glassdoor user ratings.
Candidates applying for Senior Software Engineer roles take an average of 22 days to get hired, when considering 7 user submitted interviews for this role. To compare, the hiring process at Alarm.com overall takes an average of 27 days.
Common stages of the interview process at Alarm.com as a Senior Software Engineer according to 7 Glassdoor interviews include:
Phone interview: 29%
Skills test: 21%
One on one interview: 21%
Group panel interview: 14%
Personality test: 7%
Presentation: 7%
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