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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 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

Verkada Salaries by Position

Who We Are Verkada is the largest cloud-based B2B physical security platform company in the world. Only Verkada offers six product lines - video security cameras, access control, environmental sensors, alarms, workplace and intercoms - integrated with a single cloud-based software platform. Designed with simplicity and scalability in mind, Verkada gives organizations the real-time insight to know what could impact the safety and comfort of people throughout their physical environment, while empowering them to take immediate action to minimize security risks, workplace frustrations and costly inefficiencies. Founded in 2016 with more than $460M in funding raised to date, Verkada has expanded rapidly with 16 offices across three continents, 1,900+ full-time employees and 25,000+ customers across 70+ countries. Overview We are a small, dynamic team focused on building cloud-managed intercom systems. Intercom is our second newest major product line and is off to the best start of any product in Verkada's history. Our intercom allows customers to receive calls from anywhere - at their desk or on their phone - with rich video and 2-way audio. And we have a lot more to build. We consider our team a startup within a startup, with a fair amount of ownership and autonomy. You'll be working alongside a dynamic team of firmware, backend, and frontend engineers to develop this product line. We are #10 on the LinkedIn Top Startups 2020 list and #4 on the Forbes America's Best Startup Employers 2020. In October 2022, the company raised a $205 million Series D at a $3.2 billion post-money valuation and is backed by top-tier investors like Sequoia Capital, First Round, Meritech, Alkeon, Lightspeed, and Siemens (Next47). Who you are <ul> <li>Excited by new products and startups </li><li>You think about delivering best-in-class products and experiences - not features </li><li>You can take a less-than-fully-fleshed-out product idea and drive it to completion </li></ul>Requirements <ul> <li>BS or a graduate degree in Computer Science, Maths, Engineering, or science </li><li>3+ years of experience working on Linux development as a Software Engineer. </li><li>Proficient in C. Go and Python are nice to have. </li><li>Experience working in an agile team environment. </li><li>Familiar with Linux servers, Linux device drivers, Linux kernel patches, secure operating systems and security focused programming. </li><li>Preferred experience working with embedded Linux, cameras, audio and video processing. </li></ul>Nice to have <ul> <li>Bash scripting experience </li><li>Experience with Yocto </li><li>Familiarity with Secure Boot </li></ul>Culture and Values <ul> <li>Self-motivated problem solver: At Verkada, you will tackle large, complex problems with no clear answers. </li> <li>Teach and learn: You will learn new technologies while being entrusted with the technical ownership of major systems, and we hope to learn something from you in turn. </li> <li>Growth mindset: As a fast-growing startup, every day brings new challenges and opportunities for growth, and we want you to grow with us! </li></ul> Pay Disclosure At Verkada, we want to attract and retain the best employees, and compensate them in a way that appropriately and fairly values their individual contribution to the company. With that in mind, we carefully consider a number of factors to determine the appropriate starting pay for an employee, including their primary work location and an assessment of a candidate's skills and experience, as well as market demands and internal parity. This estimate can vary based on the factors described above, so the actual starting annual base salary may be above or below this range. This estimate is also just one component of Verkada's total rewards package. A Verkada employee may be eligible for additional forms of compensation, depending on their role, including sales incentives, discretionary bonuses, and/or equity in the company in the form of Restricted Stock Units (RSUs). Estimated Annual Pay Range $130,000-$280,000 USD Verkada Is An Equal Opportunity Employer As an equal opportunity employer, Verkada is committed to providing employment opportunities to all individuals. All applicants for positions at Verkada will be treated without regard to race, color, ethnicity, religion, sex, gender, gender identity and expression, sexual orientation, national origin, disability, age, marital status, veteran status, pregnancy, or any other basis prohibited by applicable law. Your application will be handled in accordance with our Candidate Privacy Policy.

Who We Are Verkada is the largest cloud-based B2B physical security platform company in the world. Only Verkada offers six product lines - video security cameras, access control, environmental sensors, alarms, workplace and intercoms - integrated with a single cloud-based software platform. Designed with simplicity and scalability in mind, Verkada gives organizations the real-time insight to know what could impact the safety and comfort of people throughout their physical environment, while empowering them to take immediate action to minimize security risks, workplace frustrations and costly inefficiencies. Founded in 2016 with more than $460M in funding raised to date, Verkada has expanded rapidly with 16 offices across three continents, 1,900+ full-time employees and 25,000+ customers across 70+ countries. Overview As a member of our Infrastructure team, you will build data infrastructure, data pipeline and services to allow the teams to make data driven decisions, and ultimately put quality features into the hands of users. We emphasize tools over processes, automation over operation, metrics over anecdotes, iteration over perfection, and proactive over responsive. Responsibilities: <ul><li>Design and implement reliable, scalable and efficient data infrastructure to allow the team to gain insights and make quality data driven decisions</li><li>Work cross-functionally to build data products that allows other teams to gain insights and ultimately improve Verkada products and Verkada customer experience</li><li>Design and implement solutions to ensure data quality, security, and compliance </li><li>Lead whole projects from design to implementation</li><li>Help lead and grow junior engineers</li></ul> Requirements: <ul><li>5+ years of data engineering related development experience</li><li>Flexible and adaptive in a fast-paced startup environment</li><li>Passion for product quality and building systems to ship high quality releases</li><li>In-depth expertise in distributed systems and data processing </li><li>Experience with data infrastructure and data analytics</li></ul> Nice to have: <ul><li>Experience with Kubernetes</li><li>Experience in data visualization and dashboard design</li></ul> Perks & Benefits: <ul><li>Generous company paid medical, dental & vision insurance coverage </li><li>Unlimited paid time off & 11 companywide paid holidays </li><li>Wellness allowance </li><li>Commuter benefits </li><li>Healthy lunches and dinners provided daily </li><li>Generous paid parental leave policy & fertility benefits</li></ul> Pay Disclosure At Verkada, we want to attract and retain the best employees, and compensate them in a way that appropriately and fairly values their individual contribution to the company. With that in mind, we carefully consider a number of factors to determine the appropriate starting pay for an employee, including their primary work location and an assessment of a candidate's skills and experience, as well as market demands and internal parity. This estimate can vary based on the factors described above, so the actual starting annual base salary may be above or below this range. This estimate is also just one component of Verkada's total rewards package. A Verkada employee may be eligible for additional forms of compensation, depending on their role, including sales incentives, discretionary bonuses, and/or equity in the company in the form of Restricted Stock Units (RSUs). Estimated Annual Pay Range $130,000-$280,000 USD Verkada Is An Equal Opportunity Employer As an equal opportunity employer, Verkada is committed to providing employment opportunities to all individuals. All applicants for positions at Verkada will be treated without regard to race, color, ethnicity, religion, sex, gender, gender identity and expression, sexual orientation, national origin, disability, age, marital status, veteran status, pregnancy, or any other basis prohibited by applicable law. Your application will be handled in accordance with our Candidate Privacy Policy.

Verkada Interview Questions

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Verkada Interview Questions

Verkada Salaries by Position

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