Samsung Data Engineer Interview Guide

The Samsung data engineer loop, round by round: what each stage tests, example questions with the guidance interviewers actually score, the mistakes that sink strong candidates, and how to prepare.

Last updated: July 31, 2026Proudly published by: Jeff Wahl

Try a Samsung-style SQL round

Find every user active on 3 or more CONSECUTIVE days. This gaps-and-islands shape shows up in nearly every DE SQL round. Edit the query and run it against the seed data.

	/* Users active on 3+ consecutive days. */
	/* Hint: date minus a per-user ROW_NUMBER is constant within a streak. */
	WITH streaks AS (
	SELECT
	user_id,
	activity_date,
	activity_date - CAST(
	(ROW_NUMBER() OVER (
	PARTITION BY user_id
	ORDER BY activity_date
	))
	AS INT
	) AS grp
	FROM user_sessions
	)

	SELECT
	user_id
	FROM streaks
	GROUP BY user_id, grp
	HAVING COUNT(*) >= 3

Samsung is hiring data engineers now

The roles behind this loop. Prep against the levels and locations they are actually filling.

Hiring now

Samsung data engineer · live from career pages

open roles

San Francisco Bay Area

top metro

Design and maintain scalable and optimized data pipelines for efficient collection, processing, and storage of data.

L6645 Clyde Avenue30d ago

Participate in building and maintaining batch and real-time data processing workflows handling billions of events daily

L5645 Clyde Avenue30d ago

Contribute to scalable, high-performance data pipelines for ingestion, transformation, and analytics across large-scale advertising datasets

L4Mountain View74d ago

New postings per week

3/2

5/18

6/29

week beginning · ~17 weeks of data

Where they hire

San Francisco Bay Area

Levels hiring

L41L51L61

Updated Jul 31, 20264 open listings across 1 city

Samsung compensation and culture

The numbers, tech stack, and team structure live on the company overview.

Data engineering at Samsung→

The role, comp by level, tech stack, teams, and culture signals.

Compare Samsung with other data engineering employers

How the role, pay, and loop stack up against peer companies.

Data engineering at Airbnb→

Compare the role, comp, and interview loop.

Data engineering at Amazon→

Compare the role, comp, and interview loop.

Data engineering at Apple→

Compare the role, comp, and interview loop.

Data engineering at Databricks→

Compare the role, comp, and interview loop.

02 / Why practice

Prepare at Samsung interview difficulty

01
Reading a solution is not the same as writing one
Every engineer who has frozen on a query they had read a dozen times knows the gap. The only preparation that closes it is producing the answer yourself, under time, before the interview does it for you
02
76% of hiring managers reject on the coding task, not the resume
From HackerRank's 2024 Developer Skills Report. Candidates who look strong on paper still fail the live screen if they haven't done timed, executable practice
03
5 problem shapes cover 80% of data engineer loops
Dedup, sessionization, top-N-per-group, slowly-changing dimensions, partition tricks. Writing the shapes by hand turns the unfamiliar into pattern recognition

Practice Samsung-level SQL

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