What data cleaning methods are you familiar with and comfortable using if hired for this role at Snapchat?

"In my current work, I use a very methodical fashion in cleaning data for finished systems. My first step is to remove duplicate and irrelevant observations within the data. Then I scan the data to remove extra spaces, convert numbers stored as text into numbers and remove duplicate data. These steps help ensure clean and accurate data and I never overlook them. If hired for this position, what methods does the current data analyst team her at Snapchat utilize?"

To improve data quality and increase overall productivity of a system, Snapchat relies on their data analysts to use data cleansing methods to ensure quality data exists in their software. Be open and honest with the ways that you've helped ensure quality and accurate data in the systems that you've worked with while also showing that you have an open mind to learning and utilizing more methods if hired for this position.

"I am familiar with many methods used in the cleansing of data. The initial monitoring of errors within a system is very important to identifying where errors occur and give insight into how to fix corrupt data. I have utilized the tools within Domo software to validate data accuracy and scrub for duplicate data in my processes as well. Being very proficient in data analysis, I'm very open to learning new methods as well if hired for this position."

What experience do you have in the different types of software maintenance?

"Being familiar with all four types of software maintenance, my most used method of maintenance in my current role is corrective. Based on bug reports from end users, I work through coding and logic issues to resolve issues in a timely and effective manner. In the maintenance I perform, I never hesitate to pick up the phone and contact customers to hear first hand about what they are experiencing. By doing this, they feel like they are an important part of the process and it reflects well on me and my organization."

As a reputable company, Snapchat takes their software maintenance processes seriously and your interviewer is looking to hear that you are familiar with the four different types of software maintenance. Talk to your interviewer about any work you have done in the past with corrective, adaptive, perfective and/or preventative software maintenance. Use specific examples and make sure that your interviewer walks away from your conversation knowing that you understand the importance of proper system maintenance.

"In my current role, I'd definitely say that a majority of the maintenance work that I do is adaptive maintenance. Working in banking software that is used around the globe, I help perform system maintenance for changes in currency on a pretty regular basis. This work requires research and talking with end users to help adapt the programs for their use. If hired here at Snapchat, I also have experience performing perfective, preventative and corrective maintenance on software as well."

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?

"From a very high level, the business success of a program really relies on being universally designed. If we pigeon hole ourselves, a product will only reach a very limited group of end users. But taking that a step further, universal design is the morally right thing to do to help reach people that may not have access to the average program design. Last year, I was part of a project that utilized a voice user interface for users that were deaf or hard of hearing. This simple yet effective design was a huge win for our current customers and in helping drive new business with our groundbreaking software."

In the technology, software and mobile app fields today, accessibility is a huge topic. As a designer with Snapchat, you will be expected to help create products that are as accessible as possible to as many end users as possible. In this two part question, talk about why you feel that universal design is important in the work that you will be doing with Snapchat and then really sell your ability to do this by giving an example of a time you used a universal design in your previous work.

"Early in my career, the best piece of advice that I receive was from an experience designer and she said that when UX doesn't consider all potential users, we are no longer working on the user experience. We live in a very diverse world and the programs that I've designed for in the past have certainly had the goal to reach a wide audience. With your financial products here at Snapchat, this same philosophy applies. Last year, based on some feedback from current customers, we switched our design to include a strong color contract to make the system much more user friendly to color blind users. This was both a simple and very effective change to enhance the look of the program."

As a machine learning engineer, how do you avoid the curse of dimensionality in your designs?

"A common example that I use with people to explain complications in dimensionality is dropping a pin on a 10 foot straight line. This would be relatively simple to find. Next, if you dropped the pin in a 10 foot by 10 foot square, the task of finding the pin becomes more difficult. Adding a third dimension to make a 10 foot cubed area makes it all the more difficult to find the pin if placed within it. In bringing this back to machine learning, my job is to somehow make the three dimensional field that the machine will pull from easier to pull from. Last year, I was part of a team that developed a system for pulling public health data. We were able to set many variance thresholds that removed values that didn't change much from observation to observation. After careful testing, the system was able to pull information quickly and accurately based on these thresholds."

To effectively answer this question, it is important to first understand what dimensionality means in reference to machine learning and how it can curse a project. As the number of features increases in comparison to the number of observations within a data set, some algorithms struggle in pulling correct data. Your job on this question is to talk about ways that you can avoid the curse in your designs. Some possible things that you may mention and describe are feature selection, correlation thresholds and variance thresholds.

"As you can see from my resume, I've spent the last six years working in the electronics industry. Most of my machine learning work has focused audio data. To avoid the curse of dimensionality within the systems I've designed, autoencoders have been tremendous in pulling information. While a great amount of time and effort was needed to effectively train the systems, the work was well worth it in the end."

What SDLC models are you familiar in working with?

"During my training in software engineering and in my early career, the waterfall model was the standard. In this model, each phase of the development process happens in a set order and projects using this model are easily managed. But over time, as the development projects that I have led have become more complicated and intricate, I have implemented the spiral model. This model has allowed the ability of end users to give feedback early on and often during development and helps to build a more customized product to our customers."

As a software engineer, you are very familiar with the software development life cycle. For this question, your interviewer is looking to hear what models you have worked on in the past. While there isn't necessarily a right or wrong answer to this question, try to show your flexibility to working with different SDLC models by bringing up your past experiences. Then, show you have knowledge of different models like the waterfall model or agile model. It is also a good idea to use this question as an opportunity for you to learn more about Snapchat by asking your interviewer which model they work off of.

"In my current position with XYZ Company, my department utilizes the agile model in development life cycle. Since our products are so tailored to the needs of our customers, we get a working product very early on in the process and then I work hand in hand with customers to fine tune the software moving forward. It is a very effective model that has built a great reputation for our software among customers. I also have familiarity working with the iterative model and it has similar advantages to the agile model. If I were hired here at Snapchat, can you expand on what models you use here in your software development life cycle?"

What unique values can you bring to Snapchat in your user experience design skills?

"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."

While your interviewer has shown confidence in your technical abilities to succeed at Snapchat 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.

"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 Snapchat 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."

Culture fit is important to us at Snapchat. How would you describe your personality?

"I would describe my personality as approachable, light-hearted, and positive. I believe that, if asked, my colleagues and supervisor would say the same about me."

Personality and character are two very different things. The interviewer is looking for more information on your traits vs. your integrity. This answer could include buzzwords such as introverted, energetic, and confident.

"Try to include a variety of words that the interviewer does not hear all the time. Be unique! Here are some ideas: - Adaptable - Considerate - Diligent - Intuitive - Persistent - Resourceful - Sincere - Witty"

What would you say is your top non-technical skill that will help you succeed in this role here at Snapchat?

"As I grew in the software development field over my career, I was best suited to be a architect because of my ability to be a great project manager. If hired for this role here at Snapchat, you'll quickly find that I have the ability to lead others, negotiate, budget and oversee a project from idea to final delivery."

As a software architect at Snapchat, you will be relied upon to be the bridge to between the business and technical side of the organization. Your work my be relied upon to work within many silos of the organization. Because of this need, your interviewer is asking you to dig deep inside of yourself and talk about what you feel is your greatest skill to help you do this that is outside of your technical ability. As you prepare for this question, there are many ways that you can answer. No matter how you answer, be sure that your answer relates to your ability to work with other people in some way, shape or form.

"From a self introspection point of view, I think that my ability to be empathetic towards others that I work with has led to a huge amount of my success in the software architecture field. While I do have the technical skills to do great things here at Snapchat, my ability to learn from others, see their point of view and become a great teach to them when needed will really set me apart from others that you are interviewing for this position. If given the opportunity to work here, this skills will greatly improve the team atmosphere."

If hired for this position here at Snapchat, would you be comfortable handling overall project manager responsibilities for new software development?

"Looking to join the team here at Snapchat directly out of college, I feel very confident in my abilities to manage the entire scope of a new development project. I have leadership experience as my campus' president of the software engineering club. In that role, I developed skills that would help me utilize staff and resources in the best way possible. During my internship, I was exposed to the planning stages of new projects and I have a very good feel of estimating the budget and length of time needed to have a fully functional system."

As a skilled software engineer, you have all of the necessary tools in your bag to be a successful engineer at Snapchat. This question is allowing your interviewer to get a better sense of your project management skills and people skills if you were to join the team at Snapchat. In your answer, talk about your ability to estimate the time and cost of a project, the staffing needed and the overall scope of planning for a particular project. If you have direct experience in being the lead on a large development project, be sure to discuss that experience with your interviewer.

"I would absolutely be comfortable if tasked with project manager duties here at Snapchat. In my last two roles, I have led successful projects that started with great planning and budgeting process and went through to completion with great people and processes in place under my leadership. While it's not a regular duty for me in my current role, I always welcome leadership duties."

If hired here at Snapchat to develop iOS and Android software, when would you use a fragment rather than an activity?

"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."

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.

"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."

In designing Android software, what is your experience using parcelable versus serializable within an app?

"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."

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.

"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."

In your current work, what are the important steps you take in the data validation process?

"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."

Depending on your training and your past roles prior to interviewing at Snapchat, 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.

"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"

What is one unique personality trait you possess that would help you be successful in this role with Snapchat?

"From what my parents have told me about me as a young child, passion has been a personality trait that has driven me my whole life. When I tackle something in life, I need to be passionate about it for it to be a success. From my time as a young child up to today, I have been passionate about physical fitness and this has driven me to participate in running and biking races across the country. This same passion in the pursuit of excellence has translated into my career as a software engineer. From tinkering with computer hardware at a young age and learning the internal components of a system to learning how to create and design software, you'll quickly find that my passion to engineer the most unique software here at Snapchat will be extremely beneficial to your team."

This question is allowing you to have the floor during your interview to wow your interviewer with something they might not know about you yet from your resume or time so far during the interview. Think about a strong, unique trait that you have that has led to prior success in your field and explain in detail how this will help further you in your career with Snapchat. If possible, be very unique in your answer to draw a direct line between your personality and success in this role.

"I would have to say that my humility has been instrumental in getting me to where I am at today in my career. Having worked with one of the largest software companies in the world, egos were certainly high with a lot of my teammates and I have always used my humility to let my work do my talking for me while remaining a friendly and curious colleague to all."

If hired here at Snapchat and tasked with helping design a UI for a new mobile app, what important factors would you consider in that design?

"Here at Snapchat, I envision users of your products in the banking industry to want security and ease of use in their products. In looking to design a UI for a new mobile app, my considerations would be a secure log-in screen and user profile section of the app. As well, I would put an automatic log out into place within the app. On top of these security items, I would prioritize ease of placement for a contact screen, services screen and an aesthetically pleasing home screen."

With consumer mobility being at an all-time high and only increasing year after year, just about every industry has entered the mobile app game and life at Snapchat is no different. For this question, it is important to have a good understanding of the different mobile UI designs and your job for this question will be tying the business needs of Snapchat into an effective mobile app. In your answer, talk about what you know about the business needs of Snapchat and then explain to your interviewer how you would build those into a great mobile app for their future.

"In the private insurance industry, I can imagine that an onboarding tutorial screen would be very beneficial to users using the app for the first time. I have experience designing these for a few different mobile apps. Other factors I would consider would be prioritizing the important information to have laid out within the app and how to best lay it out. If a menu will be utilized, I would work with key decision makers on what would make the most sense for a menu layout within the app."

Looking at our products and services, what do you think we do better at Snapchat than any of our competitors?

"When I was preparing for this interview I noticed that Snapchat was recently recognized for innovation in XYZ. You are a trailblazer in this particular arena which is amazing."

Before your interview, be sure to research Snapchat and any awards or recognition they have recently received. In their industry, and competitive space, where do they stand out? Be sure to speak positively about the organization's recent achievements to show that you are interested and engaged in their work.

"After reading reviews on your company, I believe that your reputation is the most solid and sincere of all your competitors. Amazing service is always the best way to stand out."

Do you have experience working with different CASE tools? If so, what do you have experience with?

"In my current role, I regularly utilize both diagramming and web development tools. The diagram tools assist our software projects by outlining the system data and components in a graphical form for us and this saves us a great amount of time while also being very reliable. The web development tools greatly help me visualize site changes that I am making because I don't have a deep background in web development. If hired for this position, I'd look forward to learning other CASE tools for prototyping, quality assurance and maintenance."

The world of software engineering has greatly benefited from advancements in computer aided software engineering tools. Because Snapchat is at the forefront of the industry, your interviewer will be looking to hear which tools you have experience with. Make sure not to concern yourself with providing a correct answer here, but rather focus on your flexibility to learn new aides when needed while explaining what you have experience with.

"During my career and in my experience with CASE tools, most of my experience is in the lower CASE elements that focus on coding and testing the software after initial development. CASE tools have certainly made life as a software engineer more efficient and effective and I'd look forward to learn any new CASE tools if hired for this position here at Snapchat."

Talk about your previous user interface design experience in detail. Why do you feel that this experience will translate well to this role with Snapchat?

"Ten years into my career out of college, I consider myself very blessed to have such a well rounded background in user interface design. I have experience designing cutting edge mobile app designs, website design, video game design and software design. Here at Snapchat, your education software would greatly benefit from my creative designs to be user friendly and appealing to educators, parents and students and I'd love to bring these skills to work for you."

While your interviewer can get a good sense of your experience from your resume, they are looking for you to talk in details about your experiences in UI design in your previous work. While explaining your previous experience, be sure to highlight the skills that you developed that will help you be successful in designing new products with Snapchat. Prior to your interview, be sure you research and are family with the products that Snapchat puts out.

"While my experience in user interface design has really focused on web design over the past five years, I think my current skill set will benefit the team here at Snapchat greatly. In my web design, I prepare mockups and wireframes for customers and have experience utilizing a lot of different resources in doing these. In the software world, I would love to use these same principles. As well, my web experience has really driven me to be user focused. In this role, a more user focused drive is required out of your user interface design and I would be able to bring that to the team here."

What programming languages would you consider yourself fluent in?

"From the start of college, where software engineering grew into a passion for me, I've become very fluent in Java, JavaScript and C++. My current role has me working primarily with C++, but I pride myself on my ability and passion to learn new programming languages and would be able to do so if hired for this role with Snapchat."

While this question gives your interviewer insight into the diversity of your programming language experience, they most importantly want to know that you are adaptable and able to learn on the fly if needed. Talk about the different languages that you consider yourself fluent in and, if possible, do as much research into Snapchat as you can prior to your interview and try to speak to the specific languages that they work with.

"During my training to be an engineer and then in my current role since graduating, a majority of my experience falls within Python. My current role delves deeply into artificial intelligence and Python is awesome with this advanced technology. As I understand it from talking to another engineer here at Snapchat, a requirement would be for me to learn Scala. Though I haven't worked directly with Scala, I believe my experience and willingness to learn would have me up and running in no time if hired for this role."

In SQL, how do you explain the differences between clustered and non-clustered indexes? Can you name a time that you used each?

"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."

Snapchat 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.

"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."

If you can, please provide your thoughts on the function of managed object context in developing iOS apps and software.

"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."

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.

"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."

Do you have any unique skills or past work experiences that we can't see on your resume that would benefit the team here at Snapchat?

"In my current role as a data engineer, I have gotten the opportunity over the last five years to work with clients in many industries. One of the industries that I've worked most closely with has been the private insurance industry. This experience and my gaining of insider knowledge in the insurance industry would benefit me greatly if brought aboard the team here at Snapchat."

This question is providing you the opportunity to potentially set yourself apart from your competition for this position. To do just that, it will be important for you to make sure that the unique skill or experience that you discuss matches with a critical need for Snapchat and the position that you are interviewing for. Whether you talk about a unique skill or experience, your research on this job will prove vital in your ability to make sure that it impresses your interviewer.

Here at Snapchat, we strive for continuous delivery and continuous deployment with our software. Are you familiar with these processes in your current work?

"In my current role, we utilize a 100% continuous deployment process with our end users when we role out new changes to existing software. We use automated testing in our process to validate that code changes are correct and able to be deployed without issue. Once validated, changes are automatically rolled out to our end users. Having once utilized a continuous delivery system, I am very appreciative of working in an environment utilizing continuous deployment as it negates any need for human intervention in the roll out."

In the industries that Snapchat works in, updates to software are vital to end users for them to stay at the forefront of their business. To ensure that updates happen as quick and smoothly as possible, Snapchat utilizes continuous delivery and continuous deployment for their customers. For this question, talk about what you know about these processes as a software architect, why they are important and what experience you have with them.

"In my current position, we've slowly grown from a continuous integration process to a continuous delivery process. I love the automated testing process when we are looking at rolling out new changes to existing software and my role as the architect for our projects puts me in the drivers seat for sending out these changes. If hired for this role here at Snapchat, I'd be very intrigued at learning and working with continuous deployment practices as well."

Would you say that you are a goal oriented on the job? What would I be able to do as your manager to help you achieve your goals if hired here at Snapchat?

"I would definitely say that I am goal oriented on the job in wanting to contribute any way that I can to the overall benefit of the organization. In my current organization, our leadership focuses on overall sales numbers at the end of the year. To help achieve these goals, our department creates our own goals to help achieve the sales numbers needed to succeed. Last year, one of those goals was to be as creative as possible in our user experience design processes. With the launch of an exciting new app midyear, sales numbers skyrocketed and our department was instrumental in that. For me, it was important that we determined our goals as a team with the final stamp of approval from our manager. While this style of management really helped motivate me, I can thrive under any management style as long as expectations and goals for my work are clearly set."

At the heart of this question lies your interviewers desire to see what motivates you as a potential employee at Snapchat. Make it clear to your interviewer that you certainly are motivated by on the job goals and do this by using an example of a time where you were motivated by and achieved a goal. Then, think deeply about the type of manager that you like to work for in terms of goal setting and helping our achieve your goals. Let your interviewer know what type of management styles you appreciate the most while being open to any style.

"For me, my day to day work is much more meaningful when I have goals to work for. In my current role, we have set timelines for our projects and this helps lay the framework for our goals. If hired for this position, my expectations of you as my manager would be to have goals clearly defined and a supportive atmosphere to be provided to work within."

If you were asked to review a colleague's code that they had written, what key things would you look for?

"As an experienced software engineer, I fully expect my colleagues to reach out to me for my insight and I never hesitate to provide open and honest feedback. When asked to do this, my main focus is ensuring that the code is readable and functional. If there are lines of code that need to be removed, I don't hesitate to let my colleague know that while also giving them feedback on why I feel it is unnecessary."

For this question, your interviewer will obviously be looking to hear that you have adequate knowledge when it comes to coding processes. But most importantly, your interviewer will be looking to gauge your ability to be a team player and focus on the bigger picture when working on a project. In your answer, focus on your attention to detail and your ability to help others when needed.

"When I'm asked to do this in my current position, my main focus is on regulatory requirements that were put in place for the project and security issues. I work with a team of great engineers that are very efficient coders and these two areas are most often overlooked."

A huge part of our business here at Snapchat is designing software for iOS. In this role, how would you steer away from retain cycles when using closures in Swift programming language?

"Because ARC handles most of the memory knowledge in Swift, I know ARC is prone to memory leaking and this can cause major issues in apps over time. The fix that I've used in my career to avoid retain cycles is using weak references in my coding."

This question allows your interviewer to assess your technical knowledge and skills in designing apps for iOS products in a very simple way. To successfully answer it, make sure that you can speak knowledgeably about the swift programming language and using closures to capture and store references within the software. To piece together everything for your interviewer, give a clear understanding of why retain cycles must be avoided in your processing.

If hired here at Snapchat, what do you feel would be the biggest hurdle for you to overcome from the start?

"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 Snapchat."

The key to answering this question with confidence starts with understanding that you are interviewing with Snapchat 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.

"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."

What software analysis and design tools do you have familiarity working with?

"As my career and experience in software engineering has grown over the years, I've come to really appreciate and utilize these tools that are available. A great example of this would be my recent education and use of Structured English for designing insurance claim software for a large auto insurer. The simplicity of the structured decisions in the program were a perfect example of a program that could utilize the tool and the end product ended up very functional for our customer."

As a software engineer for Snapchat, your interviewer wants to hear that you have experience in utilizing tools that you make you more proficient in your work. Dig back on your past experiences and talk openly about your experiences with the different analysis and design tools that are available to help you be better in the work that you do. In the end, make sure that your interviewer understands that you are proficient in the use of these tools and open to learning and using new tools as well.

"I have great working knowledge in creating and reading data flow diagrams. To help with both our own sales staff and with customers, DFD's have been super helpful and I consider myself very proficient in creating them. I've also recently been introduced to decision tables to aid in product testing. I was working on a new system that involved some very complicated business rules and the decision table helped outline everything perfectly for our testing."

At Snapchat, we take security risks very importantly in our products. In your experience, what are the biggest security risks in software and what is your experience in any prevention methods?

"As I'm fully aware, cyber-security has become a very important issue over the past ten years. In my current role, our biggest security risk is injection of code used by hackers to access information in our web applications. To help prevent any risks associated with injection, we've implemented the use of a safe API and using specific LIMIT and other SQL controls within queries to prevent loss of records in case of an injection."

As an expert in software industry, you are obviously aware of the many security risks that systems face in this day and age. For your answer to this question, talk knowledgeably about the security risks that you are most familiar with combating in your day to day work. Explain why the posed risk is important to combat against and talk about the methods you used to minimalize risk in the finished product.

"In the healthcare field where I currently work, broken authentication vulnerability has allowed attackers to hack into electronic medical records and gain control over those systems. This type of attack potentially puts hundreds of thousands of people at risk within a given system. We use many methods to prevent this type of security risk. First, we take the time to properly test the code before rolling out new updates to software. We also utilize very detailed external security audits. Other details we have implemented have been multi-factor authentication processes and recommendations to align password requirements with the NIST guidelines."

Snapchat Interview Questions

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1. What data cleaning methods are you familiar with and comfortable using if hired for this role at Snapchat?
2. What experience do you have in the different types of software maintenance?
3. 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?
4. As a machine learning engineer, how do you avoid the curse of dimensionality in your designs?
5. What SDLC models are you familiar in working with?
6. What unique values can you bring to Snapchat in your user experience design skills?
7. Culture fit is important to us at Snapchat. How would you describe your personality?
8. What would you say is your top non-technical skill that will help you succeed in this role here at Snapchat?
9. If hired for this position here at Snapchat, would you be comfortable handling overall project manager responsibilities for new software development?
10. If hired here at Snapchat to develop iOS and Android software, when would you use a fragment rather than an activity?
11. In designing Android software, what is your experience using parcelable versus serializable within an app?
12. In your current work, what are the important steps you take in the data validation process?
13. What is one unique personality trait you possess that would help you be successful in this role with Snapchat?
14. If hired here at Snapchat and tasked with helping design a UI for a new mobile app, what important factors would you consider in that design?
15. Looking at our products and services, what do you think we do better at Snapchat than any of our competitors?
16. Do you have experience working with different CASE tools? If so, what do you have experience with?
17. Talk about your previous user interface design experience in detail. Why do you feel that this experience will translate well to this role with Snapchat?
18. What programming languages would you consider yourself fluent in?
19. In SQL, how do you explain the differences between clustered and non-clustered indexes? Can you name a time that you used each?
20. If you can, please provide your thoughts on the function of managed object context in developing iOS apps and software.
21. Do you have any unique skills or past work experiences that we can't see on your resume that would benefit the team here at Snapchat?
22. Here at Snapchat, we strive for continuous delivery and continuous deployment with our software. Are you familiar with these processes in your current work?
23. Would you say that you are a goal oriented on the job? What would I be able to do as your manager to help you achieve your goals if hired here at Snapchat?
24. If you were asked to review a colleague's code that they had written, what key things would you look for?
25. A huge part of our business here at Snapchat is designing software for iOS. In this role, how would you steer away from retain cycles when using closures in Swift programming language?
26. If hired here at Snapchat, what do you feel would be the biggest hurdle for you to overcome from the start?
27. What software analysis and design tools do you have familiarity working with?
28. At Snapchat, we take security risks very importantly in our products. In your experience, what are the biggest security risks in software and what is your experience in any prevention methods?

Snapchat Interview Questions

1. What data cleaning methods are you familiar with and comfortable using if hired for this role at Snapchat?

2. What experience do you have in the different types of software maintenance?

3. 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?

4. As a machine learning engineer, how do you avoid the curse of dimensionality in your designs?

5. What SDLC models are you familiar in working with?

6. What unique values can you bring to Snapchat in your user experience design skills?

7. Culture fit is important to us at Snapchat. How would you describe your personality?

8. What would you say is your top non-technical skill that will help you succeed in this role here at Snapchat?

9. If hired for this position here at Snapchat, would you be comfortable handling overall project manager responsibilities for new software development?

10. If hired here at Snapchat to develop iOS and Android software, when would you use a fragment rather than an activity?

11. In designing Android software, what is your experience using parcelable versus serializable within an app?

12. In your current work, what are the important steps you take in the data validation process?

13. What is one unique personality trait you possess that would help you be successful in this role with Snapchat?

14. If hired here at Snapchat and tasked with helping design a UI for a new mobile app, what important factors would you consider in that design?

15. Looking at our products and services, what do you think we do better at Snapchat than any of our competitors?

16. Do you have experience working with different CASE tools? If so, what do you have experience with?

17. Talk about your previous user interface design experience in detail. Why do you feel that this experience will translate well to this role with Snapchat?

18. What programming languages would you consider yourself fluent in?

19. In SQL, how do you explain the differences between clustered and non-clustered indexes? Can you name a time that you used each?

20. If you can, please provide your thoughts on the function of managed object context in developing iOS apps and software.

21. Do you have any unique skills or past work experiences that we can't see on your resume that would benefit the team here at Snapchat?

22. Here at Snapchat, we strive for continuous delivery and continuous deployment with our software. Are you familiar with these processes in your current work?

23. Would you say that you are a goal oriented on the job? What would I be able to do as your manager to help you achieve your goals if hired here at Snapchat?

24. If you were asked to review a colleague's code that they had written, what key things would you look for?

25. A huge part of our business here at Snapchat is designing software for iOS. In this role, how would you steer away from retain cycles when using closures in Swift programming language?

26. If hired here at Snapchat, what do you feel would be the biggest hurdle for you to overcome from the start?

27. What software analysis and design tools do you have familiarity working with?

28. At Snapchat, we take security risks very importantly in our products. In your experience, what are the biggest security risks in software and what is your experience in any prevention methods?