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Xcel Energy Interview Questions

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You are a data scientist at YouTube focused on creators.

A PM comes to you worried that amateur video creators could do well before but now it seems like only “superstars” do well.

What data points and metrics would you look at to decide if this is true or not?

Amateur Performance

Let’s say that you work as a data scientist at a food delivery company.

You are tasked with building a model to predict food preparation times at a restaurant from the time when a customer sends in the order to when the meal is ready for the driver to pick up.

What are some reasons why measuring bias would be important in building this particular model?

Food Delivery Times

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

Xcel Energy Salaries by Position

Are you looking for an exciting job where you can put your skills and talents to work at a company you can feel proud to be a part of? Do you want a workplace that will challenge you and offer you opportunities to learn and grow? A position at Xcel Energy could be just what you're looking for. Position Summary Responsible for defining, implementing and supporting advanced analytics solutions and capabilities. Provides expertise in the integration, analysis and wrangling of data in support of solving business problems. Manipulates and analyzes complex datasets with a variety of tools; communicates results clearly and concisely to provide insight to multiple audiences. Essential Responsibilities <ul> <li>Data Wrangling/Exploration: Follow consistent practices to ensure data integrity and deal with imperfections in data. Effectively process structured data; proficiently integrate data sets from various sources; confidently draw conclusions from data. Collaborate with business stakeholders as needed to ensure solid data understanding and proper data transformation; work cross-functionally with development and engineering teams. Analyze large amounts of information to discover trends and patterns; draw conclusions and gain actionable insights from data. </li><li>Programming: Develop efficient and high quality code; follow solid validation process to ensure consistency and minimize errors; adhere to version control standards. Maintain skills through continuing education; seamlessly transition between languages to apply the right approach to the right problem. </li><li>Work Management - Manages multiple tasks, with the ability to deal with ambiguity and shifting priorities. Communicates status and estimates clearly and timely to management and team members. </li><li>Data Visualization: Create meaningful data visualizations to communicate results and highlight business impact. Utilize various visualization techniques and delivery methods of visualization that are audience appropriate (e.g. interactive, statistical, and exploratory). </li><li>Communication: Effectively communicate technical information to numerous audiences (e.g. senior management, client community, peers and junior associates); effectively develop relationships with individuals inside and outside of IT. Address challenges to analytic processes and influence others to change their approach and work collectively to implement new tools/techniques. Gain support from related stakeholders for analytic solutions. </li><li>Continuing Education - takes a proactive approach to understanding industry and organization-specific business issues. Participates in structured and self-study training courses. Continually improves technical skills and learns new data sources. </li></ul>Minimum Requirements <ul> <li>Bachelor's degree in MIS, CIS, Statistics, Analytics or related IT degree or sufficient experience </li><li>Minimum of 5 years of experience in an analytics environment </li><li>Expertise in SQL Comfortable working with large, complex data sets - drawing conclusions and proposing recommendations </li><li>Proven ability to effectively partner, collaborate, and communicate with technical and non-technical colleagues in various business functions at all levels </li><li>Hands-on experience constructing visual analytics </li><li>Working knowledge of an analytics data warehouse and big data platform </li><li>Familiarity with fundamentals of statistics, probability and data pipelines </li><li>Strong attention to detail </li><li>Demonstrated ability to wrangle data </li><li>Comfortable working with structured and unstructured data </li></ul> As a leading combination electricity and natural gas energy company, Xcel Energy offers a comprehensive portfolio of energy-related products and services to 3.4 million electricity and 1.9 million natural gas customers across eight Western and Midwestern states. At Xcel Energy, we strive to be the preferred and trusted provider of the energy our customers need. If you're ready to be a part of something big, we invite you to join our team. All qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Individuals with a disability who need an accommodation to apply please contact us at recruiting@xcelenergy.com. Non-Bargaining The anticipated starting base pay for this position is: $81,000.00 to $115,867.00 per year This position is eligible for the following benefits: Annual Incentive Program, Medical/Pharmacy Plan, Dental, Vision, Life Insurance, Dependent Care Reimbursement Account, Health Care Reimbursement Account, Health Savings Account (HSA) (if enrolled in eligible health plan), Limited-Purpose FSA (if enrolled in eligible health plan and HSA), Transportation Reimbursement Account, Short-term disability (STD), Long-term disability (LTD), Employee Assistance Program (EAP), Fitness Center Reimbursement (if enrolled in eligible health plan), Tuition reimbursement, Transit programs, Employee recognition program, Pension, 401(k) plan, Paid time off (PTO), Holidays, Volunteer Paid Time Off (VPTO), Parental Leave Benefit plans are subject to change and Xcel Energy has the right to end, suspend, or amend any of its plans, at any time, in whole or in part. Deadline to Apply: 11/03/24 EEO is the Law | EEO is the Law Supplement | Pay Transparency Nondiscrimination | Equal Opportunity Policy (PDF) | Employee Rights (PDF) ACCESSIBILITY STATEMENT Xcel Energy endeavors to make https://www.xcelenergy.com/ accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact Xcel Energy Talent Acquisition at recruiting@xcelenergy.com. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications.

Xcel Energy Interview Questions

Xcel Energy Interview Guides

Xcel Energy Interview Questions

Xcel Energy Salaries by Position

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