Dataford
Top 7
Prep plan
Updated weekly · Last refresh Sep 23

Spacex Full Stack Engineer Interview Questions

The questions to prepare for a Spacex Full Stack Engineer interview. Questions from real interview reports rank first. Updated daily.

7questions
~1htotal time
Track your progressSign up free to work through all 7 questions and resume where you left off.
Start practicing free →
1
Technical FundamentalsStart here. 3 questions · ~24 min
Webhooks in JavaScriptMedium

Evaluates understanding of webhooks and practical handling in a JS environment.

api integrationjavascriptSpacex
What Happens When You Enter a URLMedium

Assesses understanding of the web request lifecycle and browser behavior.

httpSpacex
Explain Big O Notation and UsageEasy

Tests understanding of algorithm complexity and performance reasoning.

Spacex
2
Behavioral & Leadership3 questions · ~24 min
Select and Deep-Dive a ProjectMedium

Tests ownership and prioritization through a deep dive on one project, including decisions, execution, and outcomes.

achievementaccountabilityarchitectureSpacex
Trade-offs in Your Recent ProjectMedium

Evaluates decision-making, prioritization, and engineering judgment.

Trade-offsSpacex
Tell Me About What You Build ForMedium

Assesses motivation, product thinking, and alignment with user value.

motivationSpacex
3
More topics1 question · ~8 min
Optimize PostgreSQL Query PerformanceMedium

Explain how to diagnose and improve PostgreSQL database performance using indexes, query plans, and join tuning.

JoinsData WranglingAggregationsSpacex

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
SQL for Capex by DepartmentMedium
Practice
Practice drill

Calculate last-quarter capital expenditure by department using a date filter, table join, and aggregation.

Date FunctionsJoinsfinancial dataSpacex
Cohort Analysis Q1 vs Q2Hard
Practice
Practice drill

Compare Starlink portal retention for Q1 and Q2 signup cohorts using CTEs, joins, date arithmetic, and distinct-user aggregation.

sql queryCohort AnalysisSpacex
Optimize a Slow SQL QueryHard
Practice
Practice drill

Rewrite a slow PostgreSQL loan payment query to reduce scanned rows while preserving the required aggregated results.

database optimizationJoinsData WranglingAmeripriseEEltro Cyberchrome PrivateEnergyHub
The finish line: interview-readyComplete all 7 questions plus 3 hands-on drills to finish this plan.