Tech Interview Questions

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9.0k Questions 486 Companies08.11.2026
Showing 20 results
Role
DoorDash logo
DoorDash
Medium
Data Scientist

Calculate Late Delivery Percentage and Top Customers

Orders +-----------+-------------+------------------------+------------------------+ | order_id | customer_id | expected_delivery_date | actual_deliv...

Data Manipulation (SQL/Python)
2
0
13 people solved
Aug 4, 2025
Experian logo
Experian
Medium
Data Scientist

Sort and Rearrange: Efficient Algorithms for Diverse Challenges

Sort and Rearrange: Efficient Algorithms for Diverse Challenges Scenario Coding rounds and infrastructure-style algorithm questions. Question Write an...

Coding & Algorithms
2
0
44 people solved
Aug 4, 2025
Meta logo
Meta
Hard
Data Scientist

Choose Randomization Unit and Mitigate Network Effects

Choose Randomization Unit and Mitigate Network Effects A/B Test Design for a New Messenger Feature with Network Effects Context You are designing an A...

Statistics & Math
4
0
37 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Launch Sticker-Reply Feature in Facebook Groups?

Launch Sticker-Reply Feature in Facebook Groups? Launch Decision: Sticker-Reply Feature for Facebook Groups Context You are evaluating whether to laun...

Analytics & Experimentation
3
0
24 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Overcome Challenges and Build Trust in Teamwork

Overcome Challenges and Build Trust in Teamwork Behavioral Interview: Teamwork, Feedback, Trust, and Conflict (Data Scientist) Context You are intervi...

Behavioral & Leadership
2
0
44 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Retrieve Ad Metrics and Rates for Last 7 Days

ads +--------+---------------+----------+ | ad_id | advertiser_id | ad_type | +--------+---------------+----------+ | 101 | 1001 | image...

Data Manipulation (SQL/Python)
0
0
9 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Resolve Poor Team Collaboration: Identify Issues, Implement Solutions

Resolve Poor Team Collaboration: Identify Issues, Implement Solutions Behavioral & Leadership Interview (Data Scientist) Scenario You are interviewing...

Behavioral & Leadership
3
0
23 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Evaluate Success of 'Similar Listings' Notification Feature

Evaluate Success of 'Similar Listings' Notification Feature Marketplace Analytics Case: "Similar Listings You May Like" Notifications Context You work...

Analytics & Experimentation
5
0
33 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Convince Leadership to Launch Group Chat Feature

Convince Leadership to Launch Group Chat Feature Evaluating a Group Chat / Group Video-Call Feature for Instagram Context You are a Data Scientist ask...

Analytics & Experimentation
6
0
42 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze Recent User Activity from Video Call Logs

video_calls caller | recipient | ds | call_id | duration 123 | 456 | 2019-01-01 | 4325 | 864.4 032 | 789 | 2019-01-01 | 9395 | 263.7 456 | 032 | 2019-...

Data Manipulation (SQL/Python)
0
0
6 people solved
Aug 4, 2025
Experian logo
Experian
Medium
Data Scientist

Why Join Experian DataLabs? Exploring Cultural Fit and Collaboration

Why Join Experian DataLabs? Exploring Cultural Fit and Collaboration Behavioral: Mission Alignment and Collaboration Context You are interviewing for ...

Behavioral & Leadership
2
0
37 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Analyze Customer Purchase Patterns Using SQL Query

orders +----------+-------------+-------------+------------+------+ | order_id | customer_id | order_value | order_date | city | +----------+---------...

Data Manipulation (SQL/Python)
2
0
11 people solved
Aug 4, 2025
TikTok logo
TikTok
Medium
Data Scientist

Calculate Conversion Rate from Ad Clicks to Page Visits

user_events | user_id | event_time | event_type | ad_id | |---------|----------------------|------------|-------| | 1 | 2023-01-01 10:...

Data Manipulation (SQL/Python)
0
0
7 people solved
Aug 4, 2025
Apple logo
Apple
Medium
Data Scientist

Analyze TSV File for User Page Visits and Patterns

visits +-----------+-----------+------+ | person_id | timestamp | page | +-----------+-----------+------+ | 1 | 100 | A | | 1 ...

Data Manipulation (SQL/Python)
0
2
9 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

List Top Customers and Monthly Order Counts in SQL

Orders | order_id | customer_id | order_date | amount | |----------|-------------|------------|--------| | 1 | 101 | 2023-01-05 | 120.5...

Data Manipulation (SQL/Python)
0
0
5 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Optimize Oculus Data Streaming with Bandwidth Constraints

Scenario Algorithmic screening for Meta VR/AR teams covering Oculus data streaming and geometric optimization. Question Oculus: Given an array frame_s...

Coding & Algorithms
4
0
46 people solved
Aug 4, 2025
Labelbox logo
Labelbox
Medium
Data Scientist

Explain Google ADK and Compare with LangChain, AWS Bedrock

Explain Google ADK and Compare with LangChain, AWS Bedrock Scenario You are interviewing for a data scientist role in a technical phone screen. You pr...

Behavioral & Leadership
4
0
57 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

Explain Central Limit Theorem and Its Limitations

Explain Central Limit Theorem and Its Limitations Statistics Concepts and Disease-Test Evaluation Context You are assessing core statistical concepts ...

Statistics & Math
7
0
58 people solved
Aug 4, 2025
Amazon logo
Amazon
Medium
Data Scientist

Facilitate Effective Collaboration in Tech Data-Science Teams

Facilitate Effective Collaboration in Tech Data-Science Teams Behavioral & Leadership (Data Scientist Onsite) Scenario You are interviewing for a Data...

Behavioral & Leadership
3
0
33 people solved
Aug 4, 2025
CloudTrucks logo
CloudTrucks
Medium
Data Scientist

Determine North-Star Metric for CloudTrucks Driver Platform

Determine North-Star Metric for CloudTrucks Driver Platform Product Analytics Case: North-Star Metric and Booking Funnel (Driver Platform) Context You...

Analytics & Experimentation
1
0
18 people solved
Aug 4, 2025