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PagerDuty Interview
Questions

27 Questions and Answers by Ryan Brunner

Published December 18th, 2019 | Ryan has over 10 years of experience interviewing
candidates in the healthcare, public service, and private manufacturing/distribution industries.
Question 1 of 27
In designing Android software, what is your experience using parcelable versus serializable within an app?
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How to Answer
Because parcelable is optimized for Android to be faster and more customizable, your interviewer will be looking to hear that you are willing to put in the extra work to utilize the parcelable method to achieve better performance within the software that you design. Give your interviewer your thoughts on the differences between the two methods of passing object references to activities within an app that you design and make sure that they understand that you are ready to perform the work to utilize the parcelable method when necessary.
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Top 25 PagerDuty, Inc. Interview Questions with Full Content
1.
In designing Android software, what is your experience using parcelable versus serializable within an app?
Because parcelable is optimized for Android to be faster and more customizable, your interviewer will be looking to hear that you are willing to put in the extra work to utilize the parcelable method to achieve better performance within the software that you design. Give your interviewer your thoughts on the differences between the two methods of passing object references to activities within an app that you design and make sure that they understand that you are ready to perform the work to utilize the parcelable method when necessary.

Ryan's Answer #1
"Having written code for Android apps for many years now, I am very familiar with both serializable and parcelable methods. In my first hand experience, parcelable provides a much faster and better user experience so I will always strive to take the time to write custom code for marhsaling and unmarshaling to create less garbage objects within an app."
Ryan's Answer #2
"Due to it being a standard Java interface and its ease of implementation, serializable interface is pretty commonly used. But, because it uses reflection, many temporary objects are created within Android apps and this creates a very poor user experience. When the parcelable interface was introduced for Android systems, I have extensively focused on its use and finished products have benefited greatly."
2.
If you can, please provide your thoughts on the function of managed object context in developing iOS apps and software.
While the core data framework and the managed object context may seem pretty easy to comprehend and simple from a first look, a deeper look into managed object context shows that it can be misused to the point where obscure bugs can enter the system. Give your interviewer your own personal insight into the purpose of managed object context and how it works behind the scenes to help an app properly run.

Ryan's Answer #1
"In my current work, I work with both main queue and private queue manged object contexts. It is important that I avoid non user related data processing on the main queue of an app that I am developing. In times where this has happened in the past, the user interface becomes unresponsive and crashes. As well, I work to avoid instances passing between the main and private queues to avoid corruption of data within the app."
Ryan's Answer #2
"Knowing that a managed object context's job is to manage a number of records within an app, my job is to successfully manage each object within the app and assign it to a correlating context within the app. I have to consider the persistent store coordinator and code the app to fetch requests from the correct one."
3.
PagerDuty uses business intelligence tools to improve sales performance. With which BI tools are you most familiar?
Business intelligence (BI) tools are applications used to collect information, process it, and structure that data in a way that makes sense. Generally, BI tools are used when a company is handling a considerable amount of unstructured data from their system. An example of an organization requiring a BI tool would be a hospital needing to organize patient health records. A useful business intelligence tool will bring a company's information to life through visuals (data visualization).

Some of the most popular BI tools include:

- Sisense
- BIRT
- icCube
- Domo
- Clear Analytics
- Gooddata
- IBM Cognos Intelligence
- Looker
- JasperSoft
- Microsoft BI

Explain to the interviewer with which tools you are most familiar. If you can, rate your knowledge in each as beginner, intermediate, advanced, or expert. This rating will help the interviewer to understand better where your strengths are. If the BI tools used at PagerDuty are mentioned, be sure to address your experience level of those as well.

Ryan's Answer #1
"I am most experienced in the Microsoft Business Intelligence platform, as this is what we use in my current role. I have been working with it for a couple of years now, and fully understand it's capabilities and features including the analysis and integration services, reporting, and its applications for creating and working with analytical data. I would say I am an advanced user in this tool. I see that PagerDuty uses Microsoft BI as well, which is great."
Ryan's Answer #2
"I saw in the PagerDuty job posting that you use Gooddata and MicroStrategy. I am an intermediate user in each of these tools. With Gooddata, I have used it for consolidating large amounts of data from the cloud. MicroStrategy is used in my current company to ensure all of our important data is held neatly in one place, where it's easy to sort and access."
4.
At PagerDuty we take pride in our ability to stay one step ahead of our competitors. How will you contribute to this trend?
It is critical that you research PagerDuty and their most vigorous competitors, before your interview. What does PagerDuty do best, and who is trying to do it better? Speak openly with the interviewer about your ability to work competitively and how you plan to contribute to their continued success.

Ryan's Answer #1
"I believe the best way to stay ahead of your competitors is to pay a big amount of attention to the fine details. When you put out a great product, others will try to mimic your work, but they will cut corners because they will feel rushed to get it out on the marketplace first. I will contribute to the success of PagerDuty by committing my most attentive work to you every day."
Ryan's Answer #2
"I think that the best way to stay ahead of competitors is to keep your projects as simple as possible while remaining innovative. People want simple, easy products, which they can understand. What I've seen from my competitors lately is that they overcomplicate their products. I offer clean and consistent work that your buyers would relate to."
5.
If hired here at PagerDuty, what do you feel would be the biggest hurdle for you to overcome from the start?
The key to answering this question with confidence starts with understanding that you are interviewing with PagerDuty because your interviewer feels that you are a strong candidate for this position. What your interviewer is focusing on with this question is how they could be of most help to you if hired for the job. So, take the time prior to your interview to think about an aspect of the position that would be the most difficult for you to overcome to be up and running at full speed and then take time to explain how you would plan to overcome that hurdle if hired. This structured answer will tell your interviewer that you have put thought to your potential shortcoming with a plan of action.

Ryan's Answer #1
"As you can see from my resume, I don't have any direct working experience with the financial industry and I would see that as my largest learning opportunity if offered this position. Like I did with my current job in the healthcare industry, I would take the time to learn the basics of the industry that would help me design the most intuitive user interfaces in the products here at PagerDuty."
Ryan's Answer #2
"Being a team player by nature, I've always considered my first challenge at any new company to be the task of getting to know my colleagues, their work preferences and their work styles. In the same breath, I want them to know who I am and how I best work as part of a team with them. To accomplish this, I would take the initiative to set one on one meetings with individuals that I didn't get to touch base with during my orientation process to get to know them better."
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