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The Tjx Companies, Inc. Interview Questions

The Tjx Companies, Inc. 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

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

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

The Tjx Companies, Inc. Salaries by Position

Logistics Analytics Manager: Network Strategy – Marlborough, MA Job Summary:The Logistics Analytics Manager in charge of Network Strategy and Optimization is responsible for driving the long-term network strategy and design. The Logistics Analytics Manager will independently, and in partnership with Logistics leaders, develop and maintain the long-term logistics Network strategy. The Logistics Analytics Manager will perform and require the following:<ul><li>Have an understanding of TJX’s logistics network and associated data structure</li><li>Lead a team of analysts in scenario modeling and design of the long-term TJX Network</li><li>Develop the 10 Year Building Strategy for Service Center and Consolidation Networks</li></ul> Major Areas of Responsibility & Activities:<ul><li>Leads and delivers strategic business initiative assessments through planning, strategy development, business case creation, modeling, scenario planning, operational assessments and improvements</li><li>Ownership of 10 Year Consolidation and Service Center Network models</li><li>Rapid scenario modeling and assessment of business cases to ensure optimal decision-making for Network Design</li><li>Develop process to assess store level routing changes in transportation modeler</li><li>Streamline logistics data ingestion to improve efficiency of model updates</li><li>Identify scenarios for network improvement to consistently optimize or identify risk in the TJX Network</li><li>Identify capacity shortfalls and recommend solutions to ensure consistent flow</li><li>Performs analytical and data modeling related to scenario planning along with what if analysis and ad-hoc analysis requests</li><li>Develops analytics to support strategic decision making across the organization</li><li>Coordinates inputs and assumptions across stakeholders, educates on impact of assumptions, and provides expertise to determine the most effective approach</li><li>Ensures data accuracy and modeling techniques to produce desired outcome</li><li>Communicate results into clear and concise presentation materials inclusive of appropriate visuals that can be shared with key stakeholders</li><li>Maintains in-depth knowledge of TJX Logistics’ footprint inclusive of facilities, providers and carriers</li><li>Manages, coaches, and mentors direct reports</li><li>Leads all aspects of performance and professional development of direct reports for future growth within the organization</li></ul> Minimal Skills / Requirements:<ul><li>Bachelor’s Degree Required, Advanced Degree Preferred or equivalent work experience</li><li>5-7 years’ experience in Supply Chain, Logistics, Operations of Finance</li><li>Advanced analytical skills</li><li>Experience in delivering recommendations to executive leadership</li><li>Experience leading and developing a team</li><li>Experience working with large data sets</li><li>Strong technical proficiency (ex. Excel, SQL, Access, PowerBI)</li><li>Python, Network Modeling Software a plus</li><li>Understanding of Logistics, Supply Chain, and Financial KPIs</li><li>Attention to detail and ability to prioritize multiple workstreams concurrently in a fast-paced environment</li><li>Track record of learning and developing new analytical skills and technical knowledge in a dynamic setting</li></ul>This position has a starting salary range of $90,200 to $115,200 per year.Actual starting pay is determined by a number of factors, including relevant skills, qualifications, and experience.This position is eligible for an annual incentive as well as long-term incentives.

The Tjx Companies, Inc. Interview Questions

The Tjx Companies, Inc. Interview Guides

The Tjx Companies, Inc. Interview Questions

The Tjx Companies, Inc. Salaries by Position

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