SpaceX Software Engineer Full-Time Four-Hour Starlink Assessment

Role: General Software Engineer — Starlink
Result: Not disclosed
Report time: July 2022
Assessment duration: Four hours

The candidate received a Starlink online assessment containing six evaluated cases.

Reported task

The task used user and satellite positions represented as three-dimensional vectors around a spherical Earth centered at (0, 0, 0). The solution had to connect users to satellites and assign one of four frequencies while maximizing coverage.

Reported constraints included:

• A satellite must be within 45 degrees of a user's outward vertical direction.
• Each satellite may serve at most 32 users.
• Beams using the same frequency on one satellite must remain at least 10 degrees apart.
• Each case has a required minimum served-user count.
• Runtime and coding style were evaluated alongside coverage.

The report does not disclose whether the candidate advanced after the assessment.

The corresponding FastPrep exercise is Starlink Beam Planner.