Prepare for and practice interview questions from Trader Interactive.

Trader Interactive Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

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<p>Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.</p>

<p>What factors could have biased this result, and what would you look into?</p>


<p>What could potentially bias the average boarding time in favor of an airline that only flies domestically?</p>

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

<p>You are testing hundreds of hypotheses with many <em>t</em>-tests. What considerations should be made?</p>


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

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?

<p>The schema below is for a retail online shopping company consisting of two tables, <code>attribution</code> and <code>user_sessions</code>.</p>

<ul>
<li><p>The attribution table logs a session visit for each row.</p></li>

<li><p>If <code>conversion</code> is <code>true</code>, then the user converted to buying on that session.</p></li>

<li><p>The <code>channel</code> column represents which advertising platform the user was attributed to for that specific session.</p></li>

<li><p>Lastly the <code>user_sessions</code> table maps many to one session visits back to one user.</p></li>
</ul>

<p>First touch attribution is defined as the channel with which the converted user was associated when they first discovered the website.</p>

<p>Calculate the first touch attribution for each <code>user_id</code> that converted. </p>

<p><strong>Example:</strong></p>

<p><strong>Input:</strong></p>

<p><code>attribution</code> table</p>

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

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

<tr>
<td><code>channel</code></td>
<td>VARCHAR</td>
</tr>

<tr>
<td><code>conversion</code></td>
<td>BOOLEAN</td>
</tr>
</tbody>
</table>
<p><code>user_sessions</code> table</p>

<table>
<thead>
<tr>
<th>column</th>
<th>type</th>
</tr>
</thead>

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

<tr>
<td><code>created_at</code></td>
<td>DATETIME</td>
</tr>

<tr>
<td><code>user_id</code></td>
<td>INTEGER</td>
</tr>
</tbody>
</table>
<p><strong>Example output:</strong></p>

<table>
<thead>
<tr>
<th><code>user_id</code></th>
<th><code>channel</code></th>
</tr>
</thead>

<tbody>
<tr>
<td>123</td>
<td>facebook</td>
</tr>

<tr>
<td>145</td>
<td>google</td>
</tr>

<tr>
<td>153</td>
<td>facebook</td>
</tr>

<tr>
<td>172</td>
<td>organic</td>
</tr>

<tr>
<td>173</td>
<td>email</td>
</tr>
</tbody>
</table>


First Touch Attribution

Trader Interactive Salaries by Position

<h3>Job Description</h3><div>Job Description<div><p><strong>Are you ready to be a big part of something big?</strong></p><p>At Trader Interactive, we make buying and selling a great experience. We’re a group of go-getters who decided they didn’t want to settle for the status quo. We come together as one team to build value and drive innovation across our industries - but we have fun while we do it and make sure our people are always our #1 priority.</p><p>When it comes to your career, we want to provide big opportunities to help you make a big impact. But for this to be possible, we strive to feel small. Small enough to quickly change tack, small enough to learn from different teams and small enough to connect authentically with leadership.</p><p>And one of the best parts? We give you the freedom to work from whatever working location works best for you and your lifestyle - yes, this means you can be 100% remote if you want to be!</p><p><strong>What We Offer</strong></p><ul><li>An inclusive and supportive work environment where you can move your career forward and will have the chance to do work that has real, significant impact on the world.</li><li>The opportunity to be a part of a global group of digital marketplace businesses (CAR Group) located across Australia, Brazil, Chile and South Korea - collectively we have around 1,800 team members worldwide, and our Global Talent Exchange Program means you might just find yourself working in one of those businesses sometime soon.</li><li>Plenty of flexible leave options and employee benefits including up to 31 days of paid time off in your first year, continuing education with access to LinkedIn Learning, a full benefits package including medical, dental & vision, 401K with company match, and wellness program.</li></ul><p><strong>What You’ll Do</strong></p><p>As a Senior Product Manager, you’ll spearhead the development and success of our many two-sided marketplace sites, including sites for recreational vehicles and business vehicles & equipment. You’ll oversee the entire product lifecycle, from product discovery to design to delivery and performance management. You’ll be driving the product vision to meet customer needs, optimize revenue, and align with business goals while delivering innovative solutions that support the long-term value for both sides of the marketplaces. <strong></strong><br /></p><ul><li>Drive the vision & strategy for your product portfolio based on customer research, market analysis, client interviews, and other quantitative & qualitative research.</li><li>Define and drive the end-to-end product lifecycle, including product discovery, planning, execution, and future iterations.</li><li>Define, instrument, and achieve target KPIs and outcomes</li><li>Own the roadmap to set foundation for long-term scalability & growth while executing short-term business value to drive adoption and end-user value.</li><li>Lead cross-functional scrum team to deliver high-quality features and products.</li><li>Collaborate with engineering, QA, design, marketing, data analytics / data science, customer service, and sales to build and launch impactful solutions.</li><li>Act as the subject-matter expert, guiding user-acceptance testing and defect resolution.</li><li>Analyze market trends and customer feedback to shape product strategy.</li><li>Communicate progress and demo new features to internal and external audiences.</li><li>Optimize products post-launch by tracking revenue, usage, and success metrics.</li><li>Partner with teams to create prototypes and define minimum viable products for quick value delivery.</li></ul><p><strong>What We’re Looking For</strong><br /></p><ul><li>Bachelor’s degree in product management, business, computer science, or a related field.</li><li>6 + years of product-management experience with at least 3 years in marketplace, ecommerce, or similar industries</li><li>Expertise in outcome-prioritization frameworks and modern product-discovery methods.</li><li>Experience with experimentation, A/B testing, and data-driven iteration; comfortable with BI and product-analytics dashboards.</li><li>A team player who can lead with clarity, move quickly, and navigate the fast-paced nature of cross-functional product development.</li><li>Strong communication skills for executive and technical audiences.</li><li>Comfort with Agile Scrum or Kanban; excellent organizational skills to juggle multiple priorities.</li></ul><p>So come and join our team - because every role is a big role in our plans to go big.</p><p>TI proudly supports a diverse workforce, and we encourage candidates from underrepresented groups to apply. Trader Interactive is an equal opportunity employer where hiring is based entirely on business needs, job requirements, and individual merit.<strong><br /></strong></p></div></div>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
First Touch Attribution	SQL	Hard	Very High

Trader Interactive Interview Questions

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Trader Interactive Interview Questions

Trader Interactive Salaries by Position

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