Katkat

Company

Liftoff interview questions

6 practice questions in the style of Liftoff's interviews, covering Coding & Algorithms, Software Engineering Fundamentals, Statistics & Math.

Questions6

0 easy5 medium1 hard

Your progress0/6

Liftoff interview questions by the numbers

Last updated

Katkat has 6 Liftoff interview questions. The largest topics are Coding & Algorithms (67%), Software Engineering Fundamentals (17%) and Statistics & Math (17%). By difficulty: 83% medium and 17% hard. The most common round is Onsite (83%).

Topics

Difficulty

  • Medium83% · 5
  • Hard17% · 1

Interview rounds

  • Onsite83% · 5
  • Technical Screen17% · 1

Roles

  • Software Engineer83% · 5
  • Machine Learning Engineer17% · 1

Showing 1–6 of 6 results

  • Compute the Eddington number from ride distancesMedium

    This question evaluates a candidate's competence in array manipulation, ordering/selection techniques, counting thresholds, and algorithmic complexity analysis required to compute the Eddington number.

    LiftoffSoftware EngineerCoding & AlgorithmsOnsite
  • Design and implement core Tetris game logicMedium

    This question evaluates practical implementation skills in game logic, real-time state and event management, piece rotation and movement handling, line-clearing algorithms, and clean, testable code organization.

    LiftoffSoftware EngineerSoftware Engineering FundamentalsOnsite
  • Find degrees of connection in a LinkedIn graphMedium

    This question evaluates understanding of graph traversal, reachability and shortest-path concepts along with the ability to manage performance constraints on large sparse graphs.

    LiftoffSoftware EngineerCoding & AlgorithmsOnsite
  • Implement minimal RLE encode/decode with max run KMedium

    This question evaluates proficiency in string parsing and compression techniques, specifically run-length encoding/decoding, pattern detection, and algorithmic optimization for producing minimal-length encodings under a maximum pattern length constraint.

    LiftoffSoftware EngineerCoding & AlgorithmsTechnical Screen
  • Parse and expand an IPv6 addressMedium

    This question evaluates proficiency in IPv6 address parsing, string validation, and canonicalization, testing understanding of hexadecimal hextets and the zero-compression (::) rule within the Coding & Algorithms domain.

    LiftoffSoftware EngineerCoding & AlgorithmsOnsite
  • Probability That the Sum of 1,000 Fair Die Rolls Exceeds a ThresholdHard

    A fair six-sided die is rolled 1,000 times; estimate the probability that the sum of the faces exceeds a threshold, including a threshold of 600. Tests the mean and variance of one roll, how they scale for a sum of independent rolls, the normal approximation with a continuity correction, and range checks.

    LiftoffMachine Learning EngineerStatistics & MathOnsite

Liftoff interview experiences

All 1 →
  • Onsite With a Dice Probability Question and a KV StoreLiftoff · Machine Learning Engineer · Onsite · Jul 2026
    Rejected

    Sigh, I felt like I did okay, but it still ended in tragedy. Thanks to the forum for the help, even though most of these questions were already in the earlier posts. The other rounds were pretty much the same as what is already posted. I did not see details on the statistics and probability questions, or on the KV store question, so let me add them. One question: you roll a 6-sided die 1000 times…

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