Mozilla Interview Questions | Glassdoor

Mozilla Interview Questions

Updated Oct 13, 2017
107 Interview Reviews

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  1.  

    Software Engineer Interview

    Anonymous Interview Candidate in San Francisco, CA
    No Offer
    Negative Experience
    Easy Interview

    Application

    I applied online. The process took 1 day. I interviewed at Mozilla (San Francisco, CA) in September 2017.

    Interview

    the recruiter emailed me with a hackerrank link, it had 3 questions, 2 coding, 1 mySQL, to be completed in 90 minutes.

    The recruiter did not even clarify the limitations and expectations ie how many questions, what languages you're allowed to code in, etc.

    Interview Questions


  2. Helpful (1)  

    Accepted Offer
    Positive Experience
    Average Interview

    Application

    I applied online. I interviewed at Mozilla in August 2017.

    Interview

    Didn't really apply for the internship but got an email because my resume is in one of the resume databse. The interviewer is really nice and the process is pretty straight forward: Asking your background, projects, then technical questions related to the programming language of your choice.

    Interview Questions

    • What kind of rold did you play in your XXX project and how much did you contribute to it?   Answer Question
  3.  

    Mobile Engineer, Password Manager Interview

    Anonymous Interview Candidate in Denver, CO
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied online. I interviewed at Mozilla (Denver, CO) in August 2017.

    Interview

    The whole process was built up of phone screens and an on site interview. I've done a lot of interviews in my time and though it didn't have the results I wanted, the customer service level was outstanding. The recruiter and coordinator were both extremely knowledgeable and on top of the whole process. We had one re-schedule and I was rescheduled within 15 minutes by the coordinator - something you don't expect from a company of this size. She also was extremely empathetic throughout the process, a rare quality now a days. The hiring manager was also a pleasure to speak with and the level of passion portrayed was admirable.

    Interview Questions

    • Previous project based questions, "Tell me about a time when you worked on a complex mobile application"   Answer Question

  4. Helpful (6)  

    Growth Engineer Interview

    Anonymous Employee
    Accepted Offer
    Negative Experience
    Average Interview

    Application

    I applied through a staffing agency. The process took 2 days. I interviewed at Mozilla in May 2017.

    Interview

    It was a truly horrible experience. ...probably one of the worst I have had in my entire life. It seemed that Mozilla was happy that I had development and marketing experience. I was contacted by a recruiter at Mondo Agents on April 28th. He said that Mozilla wanted to move really fast if I am the right candidate, and that I'd probably have multiple interviews within days and then a quick job offer. I was scheduled to interview with a manager at Mozilla in the morning of May 2nd. The interview went well, and afterward he send feedback to the recruiter right away. Apparently he liked me so much that he wanted to set me up with a 2nd more technical interview on the same day in the afternoon.

    So the second interview happened that afternoon with a second person at Mozilla. The recruiter said that if all goes well I will probably get an offer immediately afterward. I didn't hear anything that day but the next day, I did indeed get the offer. I signed a contract with Mondo on May 3rd as a contractor on a contract to work for Mozilla as a Growth Engineer, and was given a start date of May 30th which was the Tuesday after Memorial day. I celebrated that weekend, I told other companies (of which was another high profile company) that had been interviewing me and requesting to interview me that I just signed on to Mozilla. I gave my two weeks notice to my then current job. I had the entire week before Memorial Day free of work, with the idea that I would start my new job on Tuesday.

    But during that week, the week of Monday, May 22nd, Mondo had been trying to request information from Mozilla about who I need to communicate with to start getting "started up" with them in the coming week...email setup, slack, etc... Suddenly on Thursday morning, May 25th, Mondo received a 3 sentence email from Mozilla saying that Mozilla filled the position using someone internally that already worked for them, and that the had to cancel my contract.

    I essentially waited the entire month thinking I was going to start with Mozilla, quit my job, told other companies I was no longer interested in interviewing, only to find myself stranded and unemployed. I have a family, a baby girl, to think about, and now I have to deal with this.

    Then a week later, the manager at Mozilla, accepts my LinkedIn invitation, and I asked him if he could send me an official letter stating what happened so that I can forward this to other prospective employers that we under the impression that I was hired by Mozilla. I was scared that other employers would think that I was hired and immediately fired by Mozilla within a couple of weeks. But he didn't seem to know what I was talking about. He told me they did indeed find someone internally but that they never offered the job to me. He said they told Mondo that they found someone internally on Friday May 19th. If this is true, this would mean that what they (at Mondo) said about trying to contact them from Monday the 22nd until Thursday the 25th, and receiving notification on the 25th, was all a fabrication on Mondo's part. The Manager at Mozilla also said that he never interfaced with a with the recruiter I had been talking to, but rather some woman whom I never heard of. This would conflict with what the recruiter lead me to believe because on many occasions he spoke in terms of being in direct contact with with the manager.

    This list of discrepancies just goes on and on. I just don't know what to believe. I also find it odd that now that the manager at Mozilla knows what happened, he doesn't pick up the phone to call me, even after I told him to in the Linkedin chat, but he gave excuses that he was too busy to get on the phone...it was just a long LinkedIn chat. One might say that it was the recruiter who did this, but I just don't understand why they would go through such lengths to produce such an elaborate fabrication, whose end result is nothing more than to sabotage my career. All of this just doesn't make any sense. All of this only affects me in a negative way, and has no positive effect on anyone else, as far as I can see. This scheme is useless to all parties.

    If you are reading this review I would be very cautious about interviewing with Mozilla, as well as when Mondo is involved. The one good thing that might come out of this is that I am told that I can now legally put Mozilla on my resume, because I have an offer letter which I accepted stating that I would be working for Mozilla, the contract started, and it had to be canceled, which further proves that it existed. And even if this ordeal is all the work of Mondo, this still leads back to Mozilla because Mozilla hired Mondo to act on Mozilla's behalf.

    Caution my friends, caution. Apparently getting an offer from Mozilla has potential for disaster.

    Interview Questions

    • What are any examples when you faced failure in a project and how did you handle it?   Answer Question

    Mozilla Response

    Jun 19, 2017 – Head of Recruiting

    Hi, My name is Michelle Marovich, and I am the head of the Mozilla recruiting team. I'd like to help you get to the bottom of this, so that you know what really happened. You can reach me at... More


  5.  

    Senior HCI Research Scientist Interview

    Anonymous Interview Candidate in Mountain View, CA
    No Offer
    Negative Experience
    Easy Interview

    Application

    I applied through an employee referral. I interviewed at Mozilla (Mountain View, CA) in May 2017.

    Interview

    Applied online and had an initial conversation with the only HCI researcher on staff. A month later had a Skype interview with their recruiter. The recruiter was nice enough but did not seem to remotely know how to interview a PhD level researcher.

    Interview Questions


  6.  

    User Experience Designer Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied online. The process took 2 weeks. I interviewed at Mozilla in February 2017.

    Interview

    Whole process took 2 weeks. I was emailed a week after I applied, had a phone screen the next day, video interview two days after that, and then second video interview the next week. A few days later they told me they were filling the position internally.

    First interview was with a UX Designer, and I had to walk through and explain a past project. Second interview was with a Design Engineer, which involved a short technical engineering test. I assume they only give this test to candidates that claim to have coding experience. It was just HTML/CSS and Javascript questions.

    The interviewers were fantastic to talk to, and it was clear they love working at Mozilla. I was in contact with 2 HR staff, and they were great to communicate with as well. They have a great and efficient system that is unexpected from a large company. I applaud them!

    Interview Questions

    • What’s your UX process?
      What is your weakness?
      What are the differences in designing for mobile versus web?
      Do you have any thoughts on improving our product or see any opportunities?
      What's your approach to working with engineers?
      You will have a very vocal user base, so how would you handle complaints and requests that come your way?   Answer Question

  7.  

    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied online. The process took a week. I interviewed at Mozilla in February 2017.

    Interview

    Had one recruiter and one phone interview with hiring manager. They send you calendar select options for days and times... Had to use computer as Google Pixel phone could not fill out the calendar grid.

    Interview Questions

    • What type of webacsting equipment have I used.   1 Answer
  8.  

    Director Interview

    Anonymous Interview Candidate in San Francisco, CA
    No Offer
    Negative Experience
    Average Interview

    Application

    I applied online. The process took 7+ months. I interviewed at Mozilla (San Francisco, CA) in February 2017.

    Interview

    It was a 7 month process that included multiple phone calls, in-person interviews, video conference interviews and two big projects (I ended up spending ~50 hours total on the projects). IMO, too much to ask of candidates.

    Interview Questions


  9.  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Difficult Interview

    Application

    I applied online. The process took 2 weeks. I interviewed at Mozilla in January 2017.

    Interview

    Online assessment. 2 programming questions and a few multiple choice. I took the assessment in C++. Brush up on inheritance and data structures specifically.
    Phone interview. I was given a phone interview a few weeks later. Interview was pretty tough but I can't disclose the questions asked. Interviewer seemed to be in a bad mood but was polite. The entire process took about an hour to complete.

    Interview Questions


  10.  

    Intern Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied online. The process took 1 day. I interviewed at Mozilla in January 2017.

    Interview

    Had two different interviews with different interviewers.

    Both had a conversation over Skype, started out with a bit of conversation of what I already knew, then went in to coding questions.

    Interview Questions


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