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Store No 8 Interview Questions

store no 8 is an innovation center for uncovering, inventing and investing in the ideas that will transform the future of commerce. as a stand-alone entity based in silicon valley, store no 8 was founded by katie finnegan. store no 8 will bring radical innovations to the physical, digital and virtual retail experience, acting as a force driving commerce forward. we incubate, invest in, and partner with entrepreneurs, early stage start-ups, vcs and academics to innovate across a wide variety of areas including robotics, virtual and augmented reality, machine learning, and artificial intelligence. with the support of the world's largest retailer, walmart, store no 8 has a view directly into the heart of america. its team is uniquely positioned to make a positive impact at a massive, national scale.

store no 8 is an innovation center for uncovering, inventing and investing in the ideas that will transform the future of commerce. as a stand-alone entity based in silicon valley, store no 8 was founded by katie finnegan. store no 8 will bring radical innovations to the physical, digital and virtual retail experience, acting as a force driving commerce forward. we incubate, invest in, and partner with entrepreneurs, early stage start-ups, vcs and academics to innovate across a wide variety of areas including robotics, virtual and augmented reality, machine learning, and artificial intelligence. with the support of the world's largest retailer, walmart, store no 8 has a view directly into the heart of america. its team is uniquely positioned to make a positive impact at a massive, national scale.

Overview

Store No 8 Interview Guides

Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

Store No 8 Salaries by Position

Position Summary... What you'll do... As a Software Engineer III, you'll spend your days translating requirements into solutions, writing code, collaborating with cross-functional teams and providing us with the insights necessary to think beyond the status quo. You'll collaborate on small project teams consisting of other engineers to get the job done. "Immigration sponsorship is not available in this role." About Team: Our team works closely with our US stores and eCommerce business to better serve customers by empowering team members, stores, and merchants with technological innovation. From groceries and entertainment to sporting goods and crafts, Walmart U.S. offers an extensive selection that our customers value, whether they shop online at Walmart.com, through one of our mobile apps, or in-store. Focus areas include customers, stores and employees, in-store service, merchant tools, merchant data science, and search and personalization. What you'll do: <ul> <li>Design and develop software solutions, work with cross-functional teams to ship new features and use outside data sources and APIs. </li> <li>Conduct unit testing for code robustness and work on bug fixing and application performance improvement. </li> <li>Resolve complex technical problems, improve systems and applications, and ensure projects are delivered on time. Participate in full software development life cycle </li> <li>Troubleshoots business and production issues by gathering information (for example, issue, impact, criticality, possible root cause); performing root cause analysis to reduce future issues; engaging support teams to assist in the resolution of issues; developing solutions; driving the development of an action plan. </li> <li>Ensure compliance with best practices and Walmart's internal policies, stay updated with latest industry trends and technologies. </li> <li>Evaluate and improve existing systems and software components for performance standards </li> <li>Follow standards and best practices to bring operational efficiencies, stability, and availability of the system. </li> </ul><ul> <li>Comprehend various metrics on operational dashboards and reports, and take corrective actions. </li> </ul>What you'll bring: Minimum education and experience required: Bachelor's degree or the equivalent in Computer Science, Information Technology, Engineering or related field plus 2 years of experience in software engineering or related field; OR 4 years of experience in software engineering or related field Skills Required: <ul><li>Experience of strong backend development. Highly hands-on development experience with Node.js, Python. </li> </ul><ul> <li>Good Experience with development tools such as Git, Prometheus, Grafana, and Splunk </li> </ul><ul> <li>Worked on monitoring and alerting tools. Experience with configuring or implementing Build & Deployment (CI/CD) pipeline and infrastructure as a service. </li> </ul><ul> <li>Strong analytical and problem-solving skills, with the ability to think critically and approach complex issues systematically </li> </ul><ul> <li>Excellent communication and storytelling abilities, with the capacity to distill technical concepts for non-technical audiences </li> </ul><ul> <li>Collaborative mindset and talent for building strong cross-functional relationships with business stakeholders as well as data scientists </li> </ul><ul> <li>Attention to detail and commitment to maintaining high standards of code quality and accuracy </li> </ul><ul> <li>Proactive and self-motivated, with the ability to manage multiple priorities and deliver results in a fast-paced environment </li> </ul> About Walmart Global Tech Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That's what we do at Walmart Global Tech. We're a team of software engineers, data scientists, cybersecurity expert's and service professionals within the world's leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail. Flexible, hybrid work: We use a hybrid way of working that is primarily in office coupled with virtual when not onsite. Our campuses serve as a hub to enhance collaboration, bring us together for purpose and deliver on business needs. This approach helps us make quicker decisions, remove location barriers across our global team and be more flexible in our personal lives. Benefits: Benefits: Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more. Equal Opportunity Employer: Walmart, Inc. is an Equal Opportunity Employer - By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing diversity- unique styles, experiences, identities, ideas and opinions - while being inclusive of all people. The above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process. At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. ? ? ? You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. ? For information about PTO, see https://one.walmart.com/notices . ? ? Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart. ? Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms. ? For information about benefits and eligibility, see One.Walmart . ? Hoboken, New Jersey US-10279:The annual salary range for this position is $108,000.00-$216,000.00 ? Sunnyvale, California US-04396:The annual salary range for this position is $117,000.00-$234,000.00 ? Bentonville, Arkansas US-09401:The annual salary range for this position is $90,000.00-$180,000.00 ? ? ? ? ? ? ? ? ? Additional compensation includes annual or quarterly performance bonuses. ? Additional compensation for certain positions may also include: ? ? - Stock ? ? Minimum Qualifications... Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications. Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 2 years' experience in software engineering or related area.Option 2: 4 years' experience in software engineering or related area. Preferred Qualifications... Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications. Customer Service, We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart's accessibility standards and guidelines for supporting an inclusive culture. Masters: Computer Science Primary Location... 702 Sw 8Th St, Bentonville, AR 72716, United States of America

Position Summary... What you'll do... About Constellation Constellation is a dynamic and high-visibility team within Walmart, tasked with solving the most challenging inventory issues in retail through the application of Artificial Intelligence, mobile devices, embedded systems, and the management of thousands of Internet of Things (IoT) devices. At Constellation, we thrive on building products from scratch, demonstrating its business value, and scaling it rapidly. If you are inspired by such a process, Constellation might be exactly what you're looking for! As we focus on the future of retail, Walmart Global Tech is undergoing a transformation to ensure that Walmart remains a place where people can grow their careers. Our team is committed to providing an optimal experience for our talent while offering exceptional service to the business. Both leaders and individual contributors alike look to us to influence talent strategy, enhance the recruiting process, and enable the business to make the best hiring decisions. Join Constellation, where your passions meet purpose, and make a significant impact on the future of retail. About the Role As a Staff Software Engineer at Constellation, your role will be pivotal in propelling our next-gen SDKs, Mobile Applications, and AI-fueled frameworks that will revolutionize both associate and consumer experiences. Your collaborative spirit will be put to the test as you lead a group of engineers and team up with data science, product, engineering, store operations, and legal departments. Ideal candidates will be proactive, action-oriented, and possess excellent communication abilities. Together, we'll spearhead technological advancements that will redefine customer and associate interactions, streamline workflows, and transform the shopping experience. If you're driven by complex, meaningful challenges, a Staff Software Engineer role at Constellation could be your perfect career match. What we are looking for: We are currently seeking a highly skilled Staff Software Engineer who will function as a tech lead for our Android, iOS, C++, and React Native mobile engineering teams. As a part of the dynamic Constellation team at Walmart Global Tech, you'll get the chance to solve some of the most challenging inventory issues in retail through Artificial Intelligence, mobile devices, embedded systems, and IoT devices. Responsibilities: <ul> <li>Lead and manage a team of iOS, Android C++, and React Native mobile engineers </li><li>Design, develop, test, and maintain large-scale mobile applications </li><li>Understand and implement best practices for camera hardware and software </li><li>Develop SDKs that will be integrated into production level applications </li><li>Work with augmented reality, computer vision models, and deep learning technologies </li><li>Collaborate with cross-functional teams to define, design, and ship new features </li><li>Continuously discover, evaluate, and implement new technologies to maximize development efficiency </li></ul>Requirements: <ul> <li>Minimum of 8 years experience in building large scale mobile applications </li><li>Proven experience leading and managing teams of engineers </li><li>Expertise in SDK development </li><li>Deep understanding and knowledge of all mobile platforms </li><li>Extensive experience with camera hardware and software </li><li>Familiarity with augmented reality, computer vision models, and deep learning technologies </li><li>Excellent problem-solving, analytical and troubleshooting skills </li><li>Strong communication and teamwork skills </li></ul>Preferred Qualifications <ul> <li>Bachelor's Degree in Computer Science or related field and 8+ years or Master's Degree in Computer Science or related field and 5+ years of experience </li><li>Experience with Objective C, Swift, UIKit, Cocoa Pods, SPM, Gradle, Jenkins, Java, C++, Jetpack, Dart, Flutter, Compose, Python </li><li>Experience with one or more of the following frameworks/libraries: Camera X, Camera 2 API, TensorFlow Lite, OpenCV, FFMpeg, AVFoundation, ARKit, Vision, MLKit </li><li>Experience with two or more of the following frameworks/libraries: PyTorch, OpenCV, Keras, TensorFlow (lite), Cuda, SciPy, NumPy, BoofCV </li><li>Experience with low powered devices such as development boards: raspberry pi, Arduino, Coral, Jetson, etc. or mobile phones. </li><li>Experience with pushing mobile hardware to the limits. </li><li>Experience working in small teams/incubators </li></ul> Perks and Benefits Beyond competitive pay, you can receive incentive awards for your performance. Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more. ... Walmart, Inc. is an Equal Opportunity Employer - By Choice. We believe we are best equipped to help our associates, customers, and the communities we serve live better when we really know them. That means understanding, respecting, and valuing diversity- unique styles, experiences, identities, ideas, and opinions - while being inclusive of all people. At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. ? ? ? You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. ? For information about PTO, see https://one.walmart.com/notices . ? ? Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart. ? Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms. ? For information about benefits and eligibility, see One.Walmart . ? Sunnyvale, California US-04396:The annual salary range for this position is $143,000.00-$286,000.00 ? Bentonville, Arkansas US-10735:The annual salary range for this position is $110,000.00-$220,000.00 ? ? ? ? ? ? ? ? ? ? Additional compensation includes annual or quarterly performance bonuses. ? Additional compensation for certain positions may also include: ? ? - Stock ? ? Minimum Qualifications... Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications. Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 4 years' experience in software engineering or related area.Option 2: 6 years' experience in software engineering or related area. Preferred Qualifications... Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications. Master's degree in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 2 years' experience in software engineering or related area, We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart's accessibility standards and guidelines for supporting an inclusive culture. Primary Location... 840 W California Ave, Sunnyvale, CA 94086-4828, United States of America

Store No 8 Interview Questions

Overview

Store No 8 Interview Guides

Store No 8 Interview Questions

Store No 8 Salaries by Position

Store No 8 Opening Jobs