Quick summary
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This historical case study records one SQLPad customer’s reported Dropbox data engineer interview. The account does not identify the interview date or candidate. It should be used as a preparation example, not a description of Dropbox’s current process.
Overall it took 5 weeks.
TLDR
Candidate: N/A
How it gets started: Recruiter reached out on LinkedIn
Job level: IC2 (mid-level)
Year of Experience: 5
Degree: M.S & B.S. in CS
Offer: Yes
Compensation: omitted because the original summary, total, and component figures conflict, and the equity time basis is unclear.
Location: Remote
Interview process: 5 weeks
Preparation: 2 months
Has a job: yes
Decide to join: No
Round 1: HR call
Why are you interested in leaving your current job? What do you know about Dropbox? Have you used our product in the past? Do you want to work remotely or relocate to San Francisco, CA?
Round 2: SQL Coding Interview
Sample dropbox sql coding questions
Interviewed by a data engineer from the same team. Very nice guy.
1. Categorize data into different groups with CASE WHEN statement;
2. Ranking with window functions;
Round 3: Virtual Onsite Interview
1. Data Structures and Algorithm: reverse print a matrix with your preferred programming language;
2. Data modeling (design a database);
3. Behavioral questions/ leadership questions;
4. Deep dive into a recent project (based on the resume)
5. Questions for dropbox (chat with HR)
Final Offer
The candidate reported receiving an offer and deciding not to join. The available account does not support a reconciled compensation total.
Practice this interview’s distinct tasks
For CASE WHEN, include a value at each category boundary and one missing value. For ranking, decide whether ties should share a rank or whether a deterministic tie-breaker is needed. For the matrix task, clarify what “reverse print” means before coding: reverse rows, reverse each row, or reverse traversal are different requirements.
For data modeling, specify the grain of each table, keys, and a query the model must support. Prepare one project discussion that covers the original requirement, your design choice, an alternative you rejected, and evidence of the result. Confirm the current interview structure with the recruiter before allocating preparation time.
