SpaceX Software Engineer Full-Time Button Combination Technical Interviews

Role: Software Engineer
Result: No offer
Report time: February 2026
Location: Redmond, Washington
Application channel: Online application
Experience rating: Positive
Difficulty: Average

Interview process

1. The process began with a short HR call that included basic programming questions.
2. An engineer call focused on the candidate's résumé and prior experience.
3. Another engineer call contained the programming task.

Reported programming task

The candidate was asked to implement a function that detects when a user presses a specific combination of buttons.

The report does not preserve the available buttons, the target sequence or combination, whether order matters, whether repeated presses are allowed, any timing or reset rules, the function signature, examples, constraints, or interviewer follow-ups.

The corresponding FastPrep exercise is Button Combination Detector. Its explicit sequence rules and callable contract make the task runnable for practice; they should not be read as details supplied by the interview report.