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 Slack, 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."

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 Slack 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 Slack, can you expand on what models you use here in your software development life cycle?"

Here at Slack, we ask our test engineers to follow specific QA protocols. What role do you feel QA plays in software development and testing?

"As a test engineer, I take great pride in my role of ensuring that systems go out to consumers as error free as possible. In my current role, I take the time to learn all of the system specifications that are laid out by our design engineers and customize my testing to follow those specifications."

As an experience software testing engineer, quality assurance should be ingrained in your brain and your interviewer is looking to get a sense of your personal feelings towards it in your work with this question. In your answer, be sure to highlight QA's importance in reducing errors, maintaining specifications, testing failure parameters and preventing defects from occurring. In the end, make sure that quality is your mantra in the eyes of your interviewer by giving an example or two of how you put QA in the forefront of your work.

"In my work throughout my career, quality assurance in my testing was an every minute of every day job on my part. While creating effective testing processes on new software is extremely important in following QA protocols, the recording of defects, issuing of reports and assisting the designers on fixing issues are equally important parts of the process that I'd love to let shine here at Slack."

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

"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 Slack utilize?"

To improve data quality and increase overall productivity of a system, Slack 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."

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."

What skills do you use to cope with the day to day stress and pressure on the job?

"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."

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.

"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."

How do you ensure that you have a healthy work-life balance in your career?

"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."

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 Slack.

"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 Slack 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."

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 Slack?

"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 Slack."

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 Slack 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.

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."

Do you consider yourself stronger in C++, C#, Java, or Python?

"In my last company, we had a bit of an outdated tech stack and used C# and .NET. I found myself fully immersed in those technologies, but had a strong desire to learn more and become more familiar with modern technologies and how I can apply that in my career. That's what has me so interested in this role. Over the last year, I've taken courses in Java and C++, which I noticed you prefer. I've become proficient in the skills and in side projects, applied my increasingly strong knowledge. I'm probably strongest professionally in C# as that has been where my experience lies, but my passion and dedication is on the Java and C++ side, as I feel that's the more modern alternative. I'm excited about the possibility of applying that knowledge in a role at Slack."

Before your interview, do some research to understand what tech stack Slack uses so you can best prepare and highlight your expertise. If you aren't as strong in one of the skills you feel is necessary, be sure to explain how you've used it and how you are growing your knowledge to become better. Be sure to be honest in your answer, as the company will likely test your strengths.

"I am motivated and excited about this new opportunity because it will challenge me to grow in my (X) skills. I love soccer and enjoy spending time with my teammates. I am interested in continuing my education by studying (Y) to further my career."

Our cloud computing at Slack requires our experts to take proper security measures in their work. What security measures are you familiar with utilizing in a cloud platform?

"For me, the planning stage of the cloud deployment process really sets the groundwork for security in a project. In my current role, each project adopts a cloud framework that suits the project the best. This framework is the base for our security measures in the cloud. From there, I always look to utilize a cloud service that encrypts our data and take all measures to steer away from storing sensitive information within the cloud. Last, as with any project, I help implement strict testing measures to check on the security of our cloud operations."

As with any server or database storage, unique security risks are posed to organizations that have moved their data and applications to the cloud. At Slack, part of your role will be to ensure that all security measures are in place with the organizations data in the cloud and your interviewer is looking to hear that you are familiar with diagnosing security risks and taking action to prevent them with this question. Talk about your knowledge of the different cloud service providers and other security measures that you are familiar with taking in your work.

"In my current role, the biggest security risks that we face are loss of sensitive data and malware infections. To take all security measures possible, our first plan of attack for security is to ensure that all of our data is backed up locally with electronic copies of data. To prevent malware in all ways possible, we have implemented a strict password strength policy and we install anti-virus software in our own equipment and recommend that customers do the same as well."

When do you consider a project to be finished?

"In my mind, a project is never truly finished. Once it's rolled out, upgrades will have to be performed, quality checks will have to be completed, and the product will inevitably change based on customer needs, new technologies, and trends in the market. We have to take that all into consideration when working on a project and while maintaining the product that was completed as a result of the project."

When answering this question, be sure to understand what the employer is truly asking. They are looking to see where you think the project ends, whether that is when it's completed and all testing is done, or whether you think projects are ongoing and require constant work. It can be a trick question as many companies believe a project is never truly finished. Be sure to give an explanation with your answer to back up your belief.

"I should disclose to you that I have a mark on my criminal record. I have a DUI from 1998. Since then I have maintained a clean record and I am willing to comply with any form of background check that you require."

If hired for this position at Slack, what leadership skills would you bring to our team?

"I would say that my credibility is my best leadership skill. My openness and honesty suits me well when working among a team of individuals and this helps them gain trust in following my lead when working on projects. Another skill I would bring here to Slack would be my ability to lead by example. I'm not afraid to take a risk in seeking innovation and I've been commended for this trait many times by my current manager."

While this position at Slack may not hold the title of manager, supervisor or director, the organization firmly believes that employees that demonstrate key leadership qualities are better set for future career success. Aside from that, leadership skills help you work better as part of a larger team and with potential customers as well. Prior to your interview, think about one or two leadership qualities that you possess and talk in detail about how you've exemplified those qualities in the past.

"If you were to offer this position to me, you'd quickly find that my positive attitude is an inspiration to those that I work closely with. In my current job, we work under the constant stress of tight deadlines and my positivity can be infectious to help others maintain their focus when negativity can easily take over in most situations. I would say that my other strong suit as a natural leader is my ability to be fluid on a day to day basis. Sometimes our world can be monotonous and when change comes, most resist that change. For me, change is a chance to break the current mold and grow as an employee."

What do you see as the top benefits of moving to a cloud based computing platform?

"Over the past couple of years in my current position, we have greatly benefited from the vast amount of testing and staging servers that available on the cloud. In developing new programs, our testing and delivery has greatly increased our team's productivity to new levels. Add on the simple cost savings of the cloud and a move to the cloud was a no brainer for us in the end. If hired for this role here at Slack, I'd be able to bring new cloud computing ideas to your team from day one on the job."

While cloud based computing has certainly had its positive impacts across many different industries, the field of software and technology development has its own unique benefits. For this question, your interviewer will be looking to hear that you understand just how a cloud based platform benefits the field. In your answer, focus on resources that impact both the work that the team at Slack performs and the end users of the software.

"As with any of the work that I have done in this field, I focus on the consumer and the benefits that they can reap from my work. In the cloud, updates to existing software are made available almost instantaneously and end users have access to those updates with the simple click of a button. Rewind to years prior, these software updates took time and manpower that are almost unthinkable by today's standards."

If hired here at Slack 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."

What do you consider to be a good litmus test for when you would automate a test process for a new system versus testing manually?

"Having been in automation in both manufacturing for many years and now software for the last three years, a common misconception among people is that automation can help improve any situation and that couldn't be further from the truth. The amount of time, effort and resources that goes into an automation process makes it ideal for repetitive tasks and tests that have multiple data sets. If a testing process calls for unique and one time process, it would make the most sense to run that process manually."

As your role with Slack will look to help further their automate testing processes for new systems, you will need to have a good sense for when automation makes sense and when it does not. Reiterate your sense for this to your interviewer by sticking to the high level response that repetitive tasks, as are common with large software companies, are prime candidates for automation whereas one time test cases are not.

"I"n my current position, most of the automation testing that I design is in program sanity testing. These automated tests work great because they run on similar systems following changes in code to ensure that no bugs remain in the system. If our group of engineers are working on unique, one off type projects, my automation processes are not utilized."

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 Slack, 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"

In your experience in software testing, would you consider yourself proficient in both testing and debugging processes?

"Yes, I definitely would consider myself proficient in both testing and debugging software. My current role that I've held for four years since graduating from college has exposed me to both processes. In testing, I use known conditions and predefined methods to test for expected outcomes to find errors within the system. I utilize testing prior to new software rollouts. The debugging process happens to already released software that has had issues and comes with unknown conditions and unpredictable outcomes. In this process, my goal is to find the cause of the error to fix it efficiently and effectively to roll an updated program back out to end users."

As a reputable provider of software, Slack relies on their software testing engineers to both test and debug their products when necessary. Make your interviewer aware that you are knowledgeable on both processes by briefly explaining each process as you've worked on them in the past. Then, talk about your openness to working both testing and debugging processes if hired for this position.

"While a majority of my career has been focused on software testing, I am very familiar with debugging processes as well. If hired for this position, I would take the time to focus on debugging processes to bring myself up to speed while being able to hit the ground running on testing processes."

As you reflect back on your career to this point in your search for a new position, what would you say is your ideal work environment or culture?

"As I begin this job search now 15 years out of college, I'm looking for an employer that promotes and encourages innovation, new ideas and collaboration among all members of the team. From what I know about Slack from speaking with others, you sound like a perfect match for what I am looking for in a career."

While using this question as a key indicator on how you'll fit with the team and the organization at Slack, it will be very important for you to research as much as you can on the work environment at Slack so you can match your priorities to that environment. If you have the opportunity to speak with an employee at Slack prior to your interview, that can shed valuable information. In the end, the culture and value of an organization are often a key indicator of long-term success in a job, so make sure that you reflect your values into what the company values.

"With all of the companies that I have both worked for and consulted with in the past, I realize that a company culture is basically the personality of the company and I am looking for a new organization that really meshes well with my personality. I am a casual person that believes in hard work, teamwork and having fun on the job. As I embarked on a job search, I was so happy to see that Slack was hiring because I believe our styles will fit perfectly together."

What do you feel are the primary features and benefits of the Java programming language?

"When I started working with Java three years ago, the first huge benefit was the fact that the Java syntax was based on C++. At that time, I had a great working knowledge of C++ and my transition to Java was absolutely seamless. The other amazing feature that I've come to appreciate with Java is how robust the memory management is in exception handling and automatic garbage collection."

As a company that utilizes Java, Slack and your interviewer want to make sure that you have an understanding of the Java programming language and they do so by asking this question. Obviously a language packed with unique features, talk about the features that you can speak the most knowledgeably about and tie your direct experience to.

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, Slack 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 Slack, I also have experience performing perfective, preventative and corrective maintenance on software as well."

What do you feel is one of the top issues that is faced by data engineers today?

"Over the past couple of years, I've come to realize that one of the largest issues we face as data engineers is the large amounts of data that are needed to store and then draw information from. Here at Slack, I can only imagine how big of an issue that is in the healthcare industry. I have a lot of experience with cloud based data storage and also server based storage."

Being in the midst of the greatest technological revolution in the history of man, data engineers face many difficult issues in the work that they perform on a daily basis. While there are many directions that you can go with this question, be sure to focus your answer on something that you can speak passionately about. If you can research a common issue in the industry that Slack works in, you may likely score some bonus points with your interviewer.

"In my recent experiences, continuous, real-time integration is an issue that we will face each and every day moving forward. The need for fast paced information is certainly to blame for this. To stay on top of the continuous integration landscape, I am happy to hear that new and improved systems are being created to stay more real-time and up to the minute. Here at Slack and working in the financial industry, how have you seen this need for real-time data impact your products?"

What is one thing that really tests your patience when dealing with your coworkers?

"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."

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."

"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."

If you were confronted with a time where you wouldn't be able to meet a deadline here at Slack, what steps would you take when you made that realization?

"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."

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.

"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."

We are looking for innovators to join us here at Slack. Where have you brought innovation in automation to a process in your career?

"To be very honest with you, I was really drawn to the automation side of engineering because of the constant need to be flexible and continuing me education to stay ahead of new trends. Last year, I helped develop a codeless test automation for my company that brought together our software engineers and end users to test in environments in a fast and efficient manner. The codeless testing was a first for my organization and really helped free up time for our software engineers to come up with solutions rather than spend time testing."

Innovation in software has occurred in many phases over the last 20 years and Slack is always striving to be on the forefront of innovation in their field. For this question, think back on your automation experience and talk about a concept that you helped create that you felt was innovative. Really sell your interviewer on your ability to think outside of the box with this question by hammering home the idea that you can help bring new innovations to the team at Slack.

"About four years ago, I was on a team that developed an AI bot that could test scripts and provide analysis on extremely large amounts of data in a short period of time. Our work focused on the algorighms that the AI would utilize in its testing work. From the start, the AI process was extremely accurate and efficient. Now, as things have changed over time, modifications to the AI system all center around changes to the algorithms. Based on our success, we presented our AI system at a national conference last year and it received a lot of great accolades."

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 Slack."

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 Slack 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 Slack, 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."

A huge part of our business here at Slack 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.

Slack Interview Questions

Go Back

1. What software analysis and design tools do you have familiarity working with?
2. What SDLC models are you familiar in working with?
3. Here at Slack, we ask our test engineers to follow specific QA protocols. What role do you feel QA plays in software development and testing?
4. What data cleaning methods are you familiar with and comfortable using if hired for this role at Slack?
5. In designing Android software, what is your experience using parcelable versus serializable within an app?
6. What skills do you use to cope with the day to day stress and pressure on the job?
7. How do you ensure that you have a healthy work-life balance in your career?
8. 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 Slack?
9. If you were asked to review a colleague's code that they had written, what key things would you look for?
10. Do you consider yourself stronger in C++, C#, Java, or Python?
11. Our cloud computing at Slack requires our experts to take proper security measures in their work. What security measures are you familiar with utilizing in a cloud platform?
12. When do you consider a project to be finished?
13. If hired for this position at Slack, what leadership skills would you bring to our team?
14. What do you see as the top benefits of moving to a cloud based computing platform?
15. If hired here at Slack to develop iOS and Android software, when would you use a fragment rather than an activity?
16. What do you consider to be a good litmus test for when you would automate a test process for a new system versus testing manually?
17. In your current work, what are the important steps you take in the data validation process?
18. In your experience in software testing, would you consider yourself proficient in both testing and debugging processes?
19. As you reflect back on your career to this point in your search for a new position, what would you say is your ideal work environment or culture?
20. What do you feel are the primary features and benefits of the Java programming language?
21. What experience do you have in the different types of software maintenance?
22. What do you feel is one of the top issues that is faced by data engineers today?
23. What is one thing that really tests your patience when dealing with your coworkers?
24. If you were confronted with a time where you wouldn't be able to meet a deadline here at Slack, what steps would you take when you made that realization?
25. We are looking for innovators to join us here at Slack. Where have you brought innovation in automation to a process in your career?
26. What programming languages would you consider yourself fluent in?
27. A huge part of our business here at Slack is designing software for iOS. In this role, how would you steer away from retain cycles when using closures in Swift programming language?

Slack Interview Questions

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

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

3. Here at Slack, we ask our test engineers to follow specific QA protocols. What role do you feel QA plays in software development and testing?

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

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

6. What skills do you use to cope with the day to day stress and pressure on the job?

7. How do you ensure that you have a healthy work-life balance in your career?

8. 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 Slack?

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

10. Do you consider yourself stronger in C++, C#, Java, or Python?

11. Our cloud computing at Slack requires our experts to take proper security measures in their work. What security measures are you familiar with utilizing in a cloud platform?

12. When do you consider a project to be finished?

13. If hired for this position at Slack, what leadership skills would you bring to our team?

14. What do you see as the top benefits of moving to a cloud based computing platform?

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

16. What do you consider to be a good litmus test for when you would automate a test process for a new system versus testing manually?

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

18. In your experience in software testing, would you consider yourself proficient in both testing and debugging processes?

19. As you reflect back on your career to this point in your search for a new position, what would you say is your ideal work environment or culture?

20. What do you feel are the primary features and benefits of the Java programming language?

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

22. What do you feel is one of the top issues that is faced by data engineers today?

23. What is one thing that really tests your patience when dealing with your coworkers?

24. If you were confronted with a time where you wouldn't be able to meet a deadline here at Slack, what steps would you take when you made that realization?

25. We are looking for innovators to join us here at Slack. Where have you brought innovation in automation to a process in your career?

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

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