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Klarna AB Interview
Questions

27 Questions and Answers by Ryan Brunner

Published December 12th, 2019 | Ryan has over 10 years of experience interviewing
candidates in the healthcare, public service, and private manufacturing/distribution industries.
Job Interviews     Companies     Technology     Software And Technology    
Question 1 of 27
In SQL, how do you explain the differences between clustered and non-clustered indexes? Can you name a time that you used each?
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How to Answer
Klarna AB uses indexes to improve query performances within their software and for this question, your interviewer is looking to hear that you have a basic understanding of both clustered and non-clustered indexes. Explain the differences between the two types of indexes and be sure you can either speak to relevant times that you've used each or when would be the appropriate application to use each.
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Answer Examples
1.
In SQL, how do you explain the differences between clustered and non-clustered indexes? Can you name a time that you used each?
Klarna AB uses indexes to improve query performances within their software and for this question, your interviewer is looking to hear that you have a basic understanding of both clustered and non-clustered indexes. Explain the differences between the two types of indexes and be sure you can either speak to relevant times that you've used each or when would be the appropriate application to use each.

Ryan's Answer #1
"In the simplest of terms, a clustered index order records in a table the way that they are physically stored. There can only be one clustered index per table. Non-clustered indexes do not store data to match the physical order that it is stored. Rather, it can hold up to 249 indexes per table. Both types come with their own benefits over the other. In my experience, clustered indexes are suited best for programs that use primary key as an identity integer column. On the other hand, non-clustered make the most sense for programs that need JOIN and WHERE clauses within them."
Ryan's Answer #2
"In my experience, clustered indexes are faster to read but very slow when it comes to update data within. Non-clustered indexes are just the opposite in that they are slower to read but much fast to insert new data into them. In my current role, I mostly use clustered indexes when large numbers of rows need to be retreived and when insert operations are important. Most other times, I will use non-clustered as the standard."
2.
What is one thing that really tests your patience when dealing with your coworkers?
While on the surface this question may seem like your interviewer is trying to get you to talk negatively about a situation, it is really more of a test to see what can potentially drive you crazy on the job in a team atmosphere and how you handle those situations. In your answer, be honest about your pet peeves when it comes to coworkers and do so in a positive light. Then, expand on your answer by talking about how you handle those situations.

"As a person that values diversity and differences of opinion in the workplace, there aren't many things that grind my personal gears when it comes to my colleagues. The only real true test of my patience is a coworker that doesn't pull their weight in a team effort. When I've been in this situation in the past, I first seek to learn if the issue is a lack of training or knowledge. If it is, I take the necessary steps to help my colleague get on track. But if I find that it is due to a lack of effort, I talk to the person immediately in a professional manner. The sum is only as good as the effort of all of its parts and a team efforts requires everyone's maximum effort."
Ryan's Answer #1
"As a person that values diversity and differences of opinion in the workplace, there aren't many things that grind my personal gears when it comes to my colleagues. The only real true test of my patience is a coworker that doesn't pull their weight in a team effort. When I've been in this situation in the past, I first seek to learn if the issue is a lack of training or knowledge. If it is, I take the necessary steps to help my colleague get on track. But if I find that it is due to a lack of effort, I talk to the person immediately in a professional manner. The sum is only as good as the effort of all of its parts and a team efforts requires everyone's maximum effort."
Ryan's Answer #2
"Having been raised in a rural farm setting, I have always been a stickler for being on time and holding meetings to set lengths of time. While watching people show up late for meetings has bothered me internally because of how I am wired, I don't let it bother me on the exterior. We are all very busy in our lines of work and showing up a few minutes late is only normal from time to time."
3.
At Klarna AB, we rely on a full team effort to deliver top quality products to our customers. Tell me about a time that you worked well as part of a team. Are you comfortable in a similar role here?
While this potential role with Klarna AB will require your to be an independent worker that can think on your feet, you will also need to work as part of a larger team that is working toward one common goal. Because of this fact, your interviewer will want to hear that you thrive in an environment where you work with team members from other disciplines than you are trained in. In your example, stress to your interviewer that you have excellent communication skills and that you fully understand that every person on a team plays a vital role in the organization's success.

Ryan's Answer #1
"Throughout my career, I've always enjoyed working as part of a larger team on the job and this personal enjoyment started with my love of and participation in team sports like baseball and basketball. Growing up playing sports, I learned that each team member brought a unique skill set that could help us achieve our goals. Through a great coaching staff that knew how to make these individual skills shine, this same philosophy holds true for a team that is looking to design a new software system. I know that my skills as an engineer are just part of the final product and I work very well with designers, architects, analysts and sales to help build the greatest system possible."
Ryan's Answer #2
"I am a people person by nature and my current role has me working very closely with our engineering and design staff on writing technical manuals for our products. While I certainly can handle long days at my computer in solitude, my desire to work hand in hand with others really sets me apart from my peers in this field. I have excellent verbal, listening and written communication skills that, if hired here at Klarna AB, your entire team would appreciate from my first day on the job."
4.
What unique values can you bring to Klarna AB in your user experience design skills?
While your interviewer has shown confidence in your technical abilities to succeed at Klarna AB as a UX designer, this question is helping them gain insight into your ability to see the big picture in the work that you do. As you think about the unique personal values that you would bring to the role, try and paint a picture of your work tying to the end user and how you can help make it more productive, enjoyable and satisfying for them.

Ryan's Answer #1
"I have really taken pride in my ability to add value to the business needs of the customers that I work with. During any design project, I take the time to work with end users to find their wants and needs out of the program. Then, as I create the UX design, I keep their needs at the forefront and do anything possible to exceed their expectations."
Ryan's Answer #2
"As you can see from my resume, I have formal training and experience in user experience research and I know that this would benefit the work that I would be doing here at Klarna AB if hired for this position. I pursued this additional training in my career because of my passion for the customer journey in the programs that I design."
5.
In your current work, what are the important steps you take in the data validation process?
Depending on your training and your past roles prior to interviewing at Klarna AB, you may be familiar with one or two of the many trains of though regarding the steps of a data validation. Whatever formal process you are familiar with, be sure to check the boxes of discussing data screening and data verification as part of your process. Your interviewer will be looking to hear that you check those boxes as they are imperative in the software field.

Ryan's Answer #1
"As I embark on a data validation process in my current role, my first step is to roadmap a detailed plan to keep on task. I utilize benchmarks and the expectations of key stakeholders as my guide. Once underway, I validate the database and the data formatting to ensure that data is properly screened for its overall health. Then, by finishing with sampling, tests are performed to hopefully show that the data is useful within the system."
Ryan's Answer #2
"The most important steps in a data validation process are determining the data to sample, scouring the existing database and validating the final data format. My first step is to use my best judgment to determine if I will validate a sample or the entire data set. This determination is based on overall size of the set and the timeframe that I have to work on the project. Then, I take the time to screen data in the existing database to calculate the number of unique ID's and records to come into the system. Last, I have to verify that the source data matches the schema within the targe"
6.
What would you consider your technical specialty?
Do you have any particular areas of interest or ability? Talk to the interviewer about your strengths and be sure to highlight any specific skills that you excel in. It's a great idea, if you can, to highlight particular skills that may be listed on the company's job posting/job description. If there is a related area of interest where you'd like to expand your skills, you can mention those as well.

Ryan's Answer #1
"Computing and Network Communications has always been a solid area for me. I have a big interest in how network communication improves our daily lives and our overall business efficiency. I see that you are looking for team members who are experts in network communications which is what caught my eye when I first saw your job posting."
Ryan's Answer #2
"I have been focusing my career on becoming a cloud integration specialist although I do have cross-platform app development expertise as well."
7.
What do you know about our products and how do you think you'll be able to handle a support role surrounding them?
This question allows your interviewer to gain insight into both your interest in this position and the skills that you will be able to bring to the table. To show your interest, be sure to do as much research on Klarna AB as possible and get to know their products. Ensuring that you know the job description from front to back is important as well. Then, talk about how you feel that your skills will apply to working with end users that are contacting about the software.

Ryan's Answer #1
"One of the main things that is attracting me to a position with Klarna AB will be the new opportunity to work solely with cloud based software. With my current experience in supporting server and data storage issues, I am confident in my ability to support the services here based on that experience."
Ryan's Answer #2
"Upon reading the job description for technical application support, it was easy for me to see that my skills were a perfect match for the position. It sounds like you are looking for an expert that can provide support on GlobalLink applications and has exceptional experience across many different scripting languages. As you can see from my resume, I have experience using Perl and Python and I feel like these experiences would help make a smooth transition for me into this role. On top of that, my cloud based experience would translate nicely to this role here at Klarna AB as well."
8.
If you were confronted with a time where you wouldn't be able to meet a deadline here at Klarna AB, what steps would you take when you made that realization?
At some point in any person's career, the inevitable happens and an important deadline needs to be missed. With your interviewer fully understanding this fact, they are solely interested in how you react to this situation and what you do to make the situation right. In your answer, focus on the refocused planning and communication needed while also avoiding blaming others for the situation. Your interviewer holds accountability as a desirable virtue, so be sure to take accountability for actions in your response.

Ryan's Answer #1
"In my current position, I am very used to handling multiple tasks and projects on a day to day basis. Last year, my team was tasked with what started as a low priority project. After assembling a team to initially discuss the details and set a deadline for completion with our management, the project unfortunately fell off the radar of everyone on the team with many more high priority projects coming up each week. As the initial project's deadline was within a week of being due, our CEO reached out to me for a progress report. I immediately took full responsibility for letting this fall off the radar and I ensured our CEO that we would have an updated timeline set by the end of the week. In doing this and completing the project to his satisfaction, this was really the tipping point in our department moving forward utilizing a detailed project management tracking system. To this day, I can't say enough about how appreciative I am about utilizing this awesome system. Moving forward, you can rest assured knowing that I take full accountability for my actions and do what is necessary to communicate new expectations and meet them fully."
Ryan's Answer #2
"Having been in this situation before, I would first sit down to gather all the facts possible in the situation. What was the deadline, why wasn't it met and what can be done are all important questions moving forward. From there, communicating to all key parties is extremely important and doing so in a timely manner is critical. In this communication, taking accountability and setting new expectations for delivery in a concise and tactful manner will most often put stakeholders at ease and allow for successful completion."
9.
What skills do you use to cope with the day to day stress and pressure on the job?
In modern technology industries, consumer demand has led to high volume of work and high pressure situations to work on tight deadlines. To prove that you are able to handle high stress, high pressure situations on the job, your interviewer is looking to hear first hand how you handle this type of environment in your own words. As you answer the question, try to turn potential perceived stress into a positive by highlighting your personal skills that enable you to perform well in those situations. If possible, try to use specific examples in your answer.

Ryan's Answer #1
"Where many others get overtaken by stress to the point that they can't function in this field, high pressure situations sharpen my focus and that helps me work through them with ease. Last year, I was assigned a high priority, short notice project for a high profile customer. My manager gave it to me because of my proven success in those situations. From the start, I created a timeline for completion and mapped out a plan to make it happen. While staying in communication with my leaders and the client, I was able to create a great system update in just a few short weeks."
Ryan's Answer #2
"I am confident in high stress work situations because of my ability to adapt, communicate and be organized in my work. These skills came in very useful a few weeks ago when our support staff were experiencing an extremely high volume of help desk calls. My adaptability helped me go with the flow and handle items on at a time. My communication skills enabled me to quickly and efficiently call on needed support. My organization skills helped me be prepared for anything on that day and enabled me to work through tickets in a quick and efficient manner."
10.
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."
11.
How have you handled obstacles that you've faced during information gathering processes in your time as a technical writer?
To successfully document and write about software products, information gathering from subject matter experts will be a key part of your process if hired for this role at Klarna AB. As you have likely experienced during your career, the information gathering process can be one of the most painstaking processes within the life of a project. For this question, your interviewer is looking to hear what obstacles you have faced in this situation in the past and how you handled those situations. This will give them insight on how you will work as part of a larger team in handling these perceived obstacles if hired for this position.

Ryan's Answer #1
"Because the information gathering phase is a vital step in my finished projects, I take the time to meet as many credible sources as possible. This includes design engineers, automation engineers, product designers and many other folks and the biggest hiccup that I usually come across is coordinating time with folks that have busy schedules. To help minimize the total time frame for info gathering, I am very direct in my communications to key leaders that I want to meet with to finish a project and my directness is always taken well. Like any obstacle we face in our work, I find that being upfront and direct is the best manner for handling them."
Ryan's Answer #2
"I'd say that one of the more common obstacles that I have faced in my current role as a technical writer is a lack of expectations from the experts that I consult with through the process. To better this over time, I have created a set of general expectations that I provide to people ahead of our meetings that help them prepare information ahead of time. This approach not only helps me get more relevant information up front, but also helps speed the information process up significantly."
12.
How do you ensure that you have a healthy work-life balance in your career?
In the fast paced world in software and technology development, heavy work loads and potential on-call duties have created a lot of burnout in professionals. Your interviewer is looking to hear that you are cognizant of the risks of burnout and that you do what is necessary to maintain your own personal health and well being and that of your family as well. While you can use this time to talk about personal interests or hobbies outside of work, try to focus on how these items help keep you refreshed for the work that you'll be doing for Klarna AB.

Ryan's Answer #1
"As I am passionate about my career as a UX designer, I am also passionate about my family. Any moments outside of work are spent coaching my kids traveling baseball teams in the summer months and then spending as many weekends as possible on the ski slopes. These activities help keep me active, physically fit and keep my mind centered on what it truly important in my life when work weeks get stressful."
Ryan's Answer #2
"Having watched many of my senior colleagues over time suffer from work burnout that has caused marital issues and health issues, I make it a priority to maintain a healthy balance between my work and my home life. My free time is spent in the outdoors with my wife, whether that be on the lakes and rivers fishing or biking around town. I consider myself fortunate to be considered for a position here at Klarna AB because I know that you put a focus on your employees maintaining this healthy balance because the organization realizes how important this is to be productive."
13.
Do you have experience working with data in a cloud computing environment?
Over recent years, more and more companies are converting to cloud based computing services because the conversion allows them to save money and have better auditing trails. As a prospective data engineer with Klarna AB, your interviewer will be looking to hear that you are at least familiar with the concepts of working with cloud based data. Talk in details about the experiences you have while keeping your mind open to working with more in the future if hired with Klarna AB.

Ryan's Answer
"My current organization has been using Apprenda, a PaaS, that allows us to develop, test and maintain our software projects. I also have experience mining and converting data off of public, community and private cloud networks. If hired here at Klarna AB, I think I would bring a wealth of cloud based experience to the data engineering team."
14.
At Klarna AB 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 Klarna AB and their most vigorous competitors, before your interview. What does Klarna AB 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 Klarna AB 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."
15.
If hired here at Klarna AB to develop iOS and Android software, when would you use a fragment rather than an activity?
In the development of apps for both iOS and Android, using code to create an activity versus a fragment is a highly debated topic to this day. For this question, your interviewer is looking to hear that you understand what the differences between the two are and when you feel that using a fragment is the proper direction to go. Make sure to speak to the high level overview of what an activity does to an app versus fragments.

Ryan's Answer #1
"As a best practice in my development of Android apps in the past, activities are really the complete screen that a user experiences as part of the app. Fragments are really small sub activities that take place within the activity. Because fragments within an app have their own life cycle and receive their own input events within the app, there are specific times where fragments make the most sense to use in development. In my experience, I always use fragments when the app is working with UI components that are going to be uses across multiple activities within the app. As well, fragments have also served very well when using swipe views within the app."
Ryan's Answer #2
"In the past year, I honestly don't recall designing a new app that ran solely on an activity alone. The fragments are almost necessary today to bring life to an app. I use retained fragments to persist across activity restarts within the app and this helps make a user friendly experience for our end users."
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27 Klarna AB Interview Questions
Win your next job by practicing from our question bank. We have thousands of questions and answers created by interview experts.
Interview Questions
  1. In SQL, how do you explain the differences between clustered and non-clustered indexes? Can you name a time that you used each?
  2. What is one thing that really tests your patience when dealing with your coworkers?
  3. At Klarna AB, we rely on a full team effort to deliver top quality products to our customers. Tell me about a time that you worked well as part of a team. Are you comfortable in a similar role here?
  4. What unique values can you bring to Klarna AB in your user experience design skills?
  5. In your current work, what are the important steps you take in the data validation process?
  6. What would you consider your technical specialty?
  7. What do you know about our products and how do you think you'll be able to handle a support role surrounding them?
  8. If you were confronted with a time where you wouldn't be able to meet a deadline here at Klarna AB, what steps would you take when you made that realization?
  9. What skills do you use to cope with the day to day stress and pressure on the job?
  10. In designing Android software, what is your experience using parcelable versus serializable within an app?
  11. How have you handled obstacles that you've faced during information gathering processes in your time as a technical writer?
  12. How do you ensure that you have a healthy work-life balance in your career?
  13. Do you have experience working with data in a cloud computing environment?
  14. At Klarna AB we take pride in our ability to stay one step ahead of our competitors. How will you contribute to this trend?
  15. If hired here at Klarna AB to develop iOS and Android software, when would you use a fragment rather than an activity?
  16. What do you feel are the primary features and benefits of the Java programming language?
  17. What publication tools do you have experience working on during your time as a technical writer?
  18. How do you stay organized and on track when working on multiple projects or duties at the same time?
  19. What do you feel is one of the top issues that is faced by data engineers today?
  20. In your current role, how would describe your ability to communicate and coordinate with the developers, testers and architects that you work closely with?
  21. If you can, please provide your thoughts on the function of managed object context in developing iOS apps and software.
  22. Give an example of a time that you used a universal design practice in your work as a UI or UX designer. Why was it important to do this?
  23. Klarna AB embraces an Agile environment. Explain your experience in Agile methodologies and why you think it is important.
  24. If you were working on a project here at Klarna AB that came with frequent changes in user requirements, how would you handle that situation?
  25. In a technical support role here at Klarna AB, we expect that you would be able to bring great customer service skills to the role. Describe your customer service philosophy in the support that you would provide.
  26. In Java, why shouldn't you use strings to store a password?
  27. Tell me about your problem-solving skills. Do you enjoy analyzing and solving complex problems?
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