Slack Interview Questions
Updated Sep 7, 2023
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Interviews at Slack
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Anonymous Employee
I applied online. I interviewed at Slack
took two weeks to get to the final round of the interview applied online and heard back from a recruiter interview consisted of a phone screen and a coding assessment
- Tell me about your projects

Anonymous Interview Candidate in San Francisco, CA
I applied online. The process took 6 weeks. I interviewed at Slack (San Francisco, CA)
After multiple rounds of interviews, I was told they would make a decision. These rounds included the hiring manager, multiple interviews with team members, and an hour-long presentation. While waiting for a decision, I received a call from the recruiter who asked to meet with a senior leader. The senior leader didn't show up for the call. In the latter half of the interview process, a leader I met with regurgitated a plan I presented during my presentation as if his team had come up with the plan (even though the language he used was directly lifted from my presentation).
- What is your philosophy for managing a team? How do you organize and prioritize work on a team?
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Anonymous Interview Candidate
I applied online. I interviewed at Slack
Extremely disorganized interview. The Manger came in for the Intro interview meeting totally unprepared. He took my intro interview forgetting my resume. So he had no clue who he was talking to. He asked my questions and starting cutting me off when I was deep into answering it.. always looking at the time and moving to next question without even letting me finish it. From his facial expression he didnt seem to understand any of the technical terms I was using which are the common in Cloud technology. Seemed very incompetent guy who came without even meeting me with the desire of not moving forward. when there was only 5 minutes left he starting reading a technical question from his computer and the way he was reading he has no idea what that meant. I just had 5 minutes to answer when I had a lot of things to say as it was an open ended question. Then he abruptly ended the meeting saying time is up. Management should look at the interview board who they are selecting for interviewing the candidates and seems like they donot have intention to take a seasoned and good candidate, Clearly smelled a inclusion issue situation here.
- Nothing technical just about projects I worked on.

Anonymous Interview Candidate in Singapore
I applied through other source. The process took 4 weeks. I interviewed at Slack (Singapore)
The first email I received from them was a one-liner, "Hi xx, I haven't managed to get a hold of you!!?" Immediately I reported the email. Such unprofessionalism is pretty extreme. Eventually, I did get on an interview which was held on a public holiday in the country I reside in. It is not a big deal, but it shows how absent-minded the organiser for the interview was. It was a phone interview with HR to gauge my interest, followed by two interviewers, one being the lead for the region and another being the role's reporting manager.
- Tell me about a time you convinced someone to do something.

Anonymous Interview Candidate
I applied online. I interviewed at Slack
I applied online and received a response from a recruiter a few weeks later to schedule a phone screen. However, the recruiter was 12 minutes late to the 30-minute phone screen and apologized, explaining that their previous call had run over time. This late start and lack of punctuality created a negative first impression. Moreover, the interview process felt rigid, with the recruiter asking questions from a checklist without much engagement or follow-up. When we reached the scheduled end time, the recruiter hurriedly ended the call without allowing any time for my questions. This was particularly odd considering their initial lateness, which had already shortened the scheduled time. The recruiter promised to provide next steps by the end of that week, but it has been over 2 weeks without any follow-up. Overall, the experience was highly unprofessional and not representative of a company I would want to work for. This is especially disappointing considering the reputation of Slack as an innovative product.
- Describe your ideal next role

Anonymous Interview Candidate in San Francisco, CA
I interviewed at Slack (San Francisco, CA)
Code review exercise , manager meeting, software design and coding exercise . Code review exercise will test your ability to review a PR regarding how you detect code smells, bad practice, but it’s also behavioral since you need to know how to communicate suggestions and changes . Design and coding process will gauge your problem solving approach but not needed to completely solve
- How would you design a new api endpoint in slack ?

Anonymous Interview Candidate
I interviewed at Slack
kind interviewers, very communicative during the whole process and were open and perceptive to questions about the team and team placement. i was asked about my technical experience and a few coding questions
- why are you interested in this role

Anonymous Interview Candidate in Portland, OR
I applied online. I interviewed at Slack (Portland, OR)
I applied on linkedin. A recruiter almost immediately responded back to me and set up a phone interview. The interview went okay, she told me i'd hear back in a few days. I did not, I finally got a decline a couple weeks later. I politely asked if they could give me any pointers on getting further in future interviews and was ignored.

Anonymous Employee
I applied online. The process took 4 weeks. I interviewed at Slack
There were both casual and analytical interviews. Aside from the hiring manager, I also met with the local leaders the role would closely work with on a panel interview. Total of 5 interviews.
- Analytical interview was for understanding whether you can explain how you would model a problem to get to a solution

Anonymous Interview Candidate
I applied online. The process took 4 weeks. I interviewed at Slack
Phone screening with HR Phone interview with the hiring manager Zoom meeting with the hiring manager and member of the exec team In-person presentation with the hiring manager and other key team members
- What is your experience working with a Sales team?
Slack Interviews FAQs
Glassdoor users rated their interview experience at Slack as 51.3% positive with a difficulty rating score of 3.01 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Manager and Software Engineer Intern rated their interviews as the hardest, whereas interviews for Localization Project Manager and Business Development roles were rated as the easiest.
The hiring process at Slack takes an average of 26.72 days when considering 499 user submitted interviews across all job titles. Candidates applying for Marketing Manager had the quickest hiring process (on average 1 day), whereas Senior Experience Consultant roles had the slowest hiring process (on average 330 days).
Common stages of the interview process at Slack according to 499 Glassdoor interviews include:
Phone Interview: 29.75%
One on One Interview: 18.29%
Group Panel Interview: 13.66%
Presentation: 12.79%
Drug Test: 9.26%
Background Check: 8.16%
IQ Intelligence Test: 2.67%
Other: 2.43%
Skills Test: 2.35%
Personality Test: 0.63%
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