Low-level designLast reported Aug 2025
Design Tagged Gift Shop Search
Design an in-memory gift-shop catalog that supports product lifecycle changes, all-tags search, and correct bounded caching.
Open practiceSpaceX interview practice
SpaceX Software Engineer Interview and Coding Practice Start with verified evidence.
Practice from 7 SpaceX-tagged public coding problems, organized only by the stage, topic, difficulty, and recency metadata FastPrep can verify. The broader public catalog also includes 1 system-design exercise, 2 low-level-design exercises.
- Catalog
- 10 public practice assets (7 coding)
- Start here
- Use the stage named in your invitation
- Evidence
- OA · Phone · Onsite metadata, shown in context
OA practice path
Online Assessment
Build a timed implementation rhythm from prompt to edge cases. Problems are ranked by repeated public catalog sightings.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
SPSpaceX | Starlink Beam PlannerArrayGreedy | Hard | 3 public reportsLast reported Apr 2024 | Practice |
SPSpaceX | Monster RegistryParsingHash Table | Hard | 2 public reportsLast reported Mar 2024 | Practice |
Phone practice path
Phone Screen
Practice solving while explaining assumptions, tradeoffs, and complexity. Problems are ranked by repeated public catalog sightings.
5 SpaceX-tagged Phone Screen problems available.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
SPSpaceX | Starlink Beam PlannerArrayGreedy | Hard | 3 public reportsLast reported Apr 2024 | Practice |
SPSpaceX | Number of IslandsMatrixGraph | Medium | 1 public reportLast reported Aug 2026 | Practice |
SPSpaceX | Number of Islands IIArrayMatrix | Hard | 1 public reportLast reported Aug 2026 | Practice |
SPSpaceX | Speed to Pressure LookupArrayBinary Search | Easy | 1 public reportLast reported Mar 2025 | Practice |
SPSpaceX | Simplified Time-Based Key-Value StoreHash TableBinary Search | Medium | 1 public reportLast reported Nov 2023 | Practice |
Onsite practice path
Onsite
Practice complete solutions and defend the choices behind them. Problems are ranked by repeated public catalog sightings.
| Company | Problem | Difficulty | Public evidence | Action |
|---|---|---|---|---|
SPSpaceX | Rocket Component CostGraphDepth-First Search | Medium | 1 public reportLast reported Aug 2025 | Practice |
01 · Preparation plan
Practice dependency costs and changing connectivity.
SpaceX's public software catalog supports a concrete path through component dependencies, dynamic connectivity, and numerical lookup. Aerospace names are context for these exercises, not proof of a full propulsion, controls, or hardware interview curriculum. Follow the role's requirements when choosing specialist preparation. This is a suggested practice sequence, not the employer's interview process. Your invitation and recruiter guidance remain the source of truth.
- 01
Compute costs through dependencies
Use component cost to distinguish a dependency graph from a flat parts list. Reused subcomponents and cycles need explicit handling.
- Define whether quantities multiply child costs.
- Memoize completed subproblems where appropriate.
- Reject circular dependencies rather than recursing forever.
- 02
Update connectivity after each addition
Number of Islands II is useful for comparing repeated traversal with incremental union-find. Adding land can connect several existing components at once.
- Test adding the same cell twice.
- Merge only distinct neighboring components.
- Track the island count after every operation.
- 03
Choose a lookup boundary deliberately
Speed-to-pressure lookup is a contract-reading exercise before it is a search problem. Distinguish exact samples, nearest values, and any permitted interpolation.
- Test below-range and above-range queries.
- Specify equal-key behavior.
- Explain why sorted data permits binary search.
02 · Broader technical practice
Practice beyond standalone coding questions.
These public SpaceX-tagged exercises cover additional technical formats. They are included only when a verified catalog record and a crawlable practice page both exist.
Low-level designLast reported Aug 2025
Warehouse Order Transit Tracking
Design and implement an in-memory Java model that tracks an order as it departs from and arrives at warehouses and reports overdue transit.
Open practiceSystem designLast reported Feb 2020
Design a Satellite Fleet Management and Ground-Station Communications Platform
Design a global control and telemetry platform that schedules satellite commands through capacity-constrained ground stations and maintains a trustworthy operational view despite intermittent links.
Open practice03 · Evidence boundary
What “SpaceX interview questions” means here.
It means practicing transferable implementation, testing, and technical reasoning with public catalog assets FastPrep tags to SpaceX. It does not mean FastPrep has access to the company's assessments or any private interview bank.
Repeated public sightings and last-reported dates can help you prioritize practice, but they cannot predict the questions, format, or platform in a specific interview.
- Only SpaceX-tagged FastPrep catalog problems appear above.
- Stage labels and report dates remain visible as context.
- No official, private, leaked, or proprietary questions are claimed.
04 · Plain answers
SpaceX interview practice questions, answered plainly.
This page owns technical-practice intent for SpaceX. Hiring activity, timelines, and market signals remain on the separate hiring-insights page.
01Does this prepare me for SpaceX aerospace or mechanical interviews?
Not as a dedicated guide. The evidence supports coding and some design practice. A rocket-component title does not establish mechanical engineering or aerospace systems coverage. This page is for the software portion of preparation, with specialist requirements verified separately.
02Is FastPrep affiliated with SpaceX?
No. FastPrep is an independent interview-preparation product and is not affiliated with SpaceX. The page uses FastPrep's public practice catalog and does not claim official, private, leaked, or proprietary employer questions.
03How are SpaceX problems assigned to interview stages?
Stage labels come from FastPrep's public problem metadata. A problem can carry more than one reported stage, and hiring processes can change by role, level, location, and date. Treat the labels as preparation context, not a guarantee.
04Which SpaceX interview stage should I practice first?
Start with the stage named in your invitation or recruiter message. If no stage is known, use the largest available set to build general problem-solving fluency, then rehearse explanation and testing separately.
05Does this page predict the SpaceX interview process?
No. Public catalog counts, stage tags, and last-reported dates can help prioritize practice, but they cannot predict a specific interview's questions, sequence, timing, or platform.
Your next stage, made concrete
Pick a problem. Solve it end to end.
Start with the stage named in your invitation, then use public evidence as context—not as a promise of what you will be asked.
Open the practice set