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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

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

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?

Bayone Solutions Salaries by Position

Hi, We are seeking a skilled and motivated Data Engineer to join our team in Sunnyvale, CA(Hybrid). Job Title: Data EngineerLocation: Sunnyvale, CA(Hybrid)Duration: 6+ MonthsMust have: Responsibilities: Analyze competing requirements and articulate tradeoffs and lead discussions with business and development team, leading white board sessions with team.Drives the execution of multiple business plans and projects by identifying customer and operational needs. Developing and communicating business plans and priorities, removing barriers and obstacles that impact performance. Demonstrating adaptability and supporting continuous learning.Creates training documentation. Oversees the tasks of less experienced programmers and stipulates system troubleshooting supports. Experience with• Hadoop, Spark, Cloud, Scala, Streaming, Kafka• SQL / Data warehousing• BI and Looker Views, Models, Explores, Looks/Charts• DS and Algorithm• CI/CD• Data Modeling• Airflow• ·Knowledge of• Cloud (GCP/Azure)• Backend, Spring• Python Regards,SHIV SHARMA | SR. TECHNICAL RECRUITERMobile: (925)-399 7767Email: ssharma2@bayonesolutions.comAddress: 4637 Chabot Dr #250, Pleasanton, CA 94588<a>BAYONE.COM</a> | <a>CONNECT ON LINKEDIN</a>

Title- Sr. Java DeveloperLocation- San Jose, CA. (Hybrid)Pay rate- $65-70/hr on W2Interview- Video (2 Rounds)Must have- Core Java, Spring boot, Microservices Job Description:Responsible for creation of concept, design, development, testing and maintenance of applications for reliability, security, manageability, scalability, extensibility, performance and re-use; provides technical expertise in the areas of architecture, design, and implementation. Works with technical and business team members to create excellent software. Resolves best implementation that will meet the design of the application architect. Ensures that detailed unit and component testing is carried out. Sets and adheres to software coding and style guides to ensure consistency. Qualifications:<ul><li>Must be passionate about software development and delivering great work.</li><li>Experience with Spring Framework (Spring boot preferred).</li><li>Strong understanding of OOP, design patterns, clean code and SOA architecture.</li><li>Experience with RESTful APIs and distributed systems.</li><li>Experience in writing test automation suites using Junit and Mockito.</li><li>Proficiency with standard SCM tools (Git) and CI/CD tools (Jenkins).</li><li>Experience with SQL and NoSQL databases.</li><li>Familiarity with Agile software development lifecycle.</li><li>Must have a can-do attitude and ability to triage and debug production issues.</li><li>Excellent communication skills.</li></ul> Education:<ul><li>5 years of experience + BS or/and MS in Computer Science</li></ul>

Manager Technology - Java Microservices Location: 100% Remote ( PST hours) Duration: Full time Job responsibilities <ul> <li>Provides guidance to immediate team of software engineers on daily tasks and activities </li><li>Sets the overall guidance and expectations for team output, practices, and collaboration </li><li>Anticipates dependencies with other teams to deliver products and applications in line with business requirements </li><li>Creates a culture of diversity, equity, inclusion, and respect for the team members and prioritizes diverse representation </li></ul> Required qualifications, capabilities, and skills <ul> <li>Formal training or certification on software engineering concepts and 5+ years applied experience. In addition, demonstrated coaching and mentoring experience </li><li>Experience leading technology projects </li><li>Strong hands-on coding experience with Java, Springboot, Microservices APIs etc. </li><li>Experience managing technologists </li><li>Proficient in automation and continuous delivery methods </li><li>Proficient in all aspects of the Software Development Life Cycle </li><li>Advanced understanding of agile methodologies such as CI/CD, Application Resiliency, and Security </li><li>Successfully delivered solutions using one of the cloud platforms e.g. AWS/GCP/Azure/ PCF </li><li>Integrated with messaging platforms e.g. RabbitMQ/ Kafka/ cloud messaging/ enterprise messaging </li><li>Applied distributed caching solutions like Redis, Memcache, etc. </li><li>Experience working on API Gateway such as Axway or Apigee </li><li>In-depth knowledge of the Retail industry and their IT systems </li><li>Experience in Computer Science, Engineering, Mathematics, or a related field and expertise in technology disciplines </li><li>Experience with GraphQL, nice to have. </li><li>Exposure to Machine Learning and GenAI a plus. </li> </ul>

Manager Technology - Java Microservices Location: 100% Remote ( PST hours)Duration: Full time Job responsibilities<ul><li>Provides guidance to immediate team of software engineers on daily tasks and activities</li><li>Sets the overall guidance and expectations for team output, practices, and collaboration</li><li>Anticipates dependencies with other teams to deliver products and applications in line with business requirements</li><li>Creates a culture of diversity, equity, inclusion, and respect for the team members and prioritizes diverse representation</li></ul> Required qualifications, capabilities, and skills<ul><li>Formal training or certification on software engineering concepts and 5+ years applied experience. In addition, demonstrated coaching and mentoring experience</li><li>Experience leading technology projects</li><li>Strong hands-on coding experience with Java, Springboot, Microservices APIs etc.</li><li>Experience managing technologists</li><li>Proficient in automation and continuous delivery methods</li><li>Proficient in all aspects of the Software Development Life Cycle</li><li>Advanced understanding of agile methodologies such as CI/CD, Application Resiliency, and Security</li><li>Successfully delivered solutions using one of the cloud platforms e.g. AWS/GCP/Azure/ PCF</li><li>Integrated with messaging platforms e.g. RabbitMQ/ Kafka/ cloud messaging/ enterprise messaging</li><li>Applied distributed caching solutions like Redis, Memcache, etc.</li><li>Experience working on API Gateway such as Axway or Apigee</li><li>In-depth knowledge of the Retail industry and their IT systems</li><li>Experience in Computer Science, Engineering, Mathematics, or a related field and expertise in technology disciplines</li><li>Experience with GraphQL, nice to have.</li><li>Exposure to Machine Learning and GenAI a plus.</li></ul>

Hi, We are seeking a skilled and motivated Senior Software Engineer to join our team in 100% Remote. Job Title: Senior Software EngineerLocation: 100% RemoteDuration: 6+ MonthsMust have: Responsibilities: Development engineers with experience in Java and Python •With your technical expertise you will manage project priorities, deadlines, and deliverables•You will design, develop, test, deploy, maintain, and enhance software solutions•Write product or system development code•Review code developed by other engineers and provide feedback to ensure best practices (e.g., style guidelines, checking code in, accuracy, testability, and efficiency)•Contribute to existing documentation or educational content and adapt content based on product/program updates and user feedback•Triage product or system issues and debug/track/resolve by analyzing the sources of issues and the impact on hardware, network, or service operations and quality•Participate in, or lead design reviews with peers and stakeholders to decide amongst available technologies What are the day-to-day responsibilities?- Create automation suite for In-Market BCDR systems- Enable SRE Best practices and standardization for Brick & Mortar Systems, In-Market systems- Incorporate changes in GCP Projects for auto-scaling and optimal Storage Utilization Regards,SHIV SHARMA | SR. TECHNICAL RECRUITERMobile: 9253997767Email: ssharma2@bayonesolutions.comAddress: 4637 Chabot Dr #250, Pleasanton, CA 94588<a>BAYONE.COM</a> | <a>CONNECT ON LINKEDIN</a>

Bayone Solutions Interview Questions

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Bayone Solutions Interview Questions

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