Anduril Coding Interview Questions
25 Anduril coding interview problems with full optimal solutions — 8 easy, 12 medium, 5 hard. Every problem ships with multiple approaches (brute-force first, then the optimal), complexity tables for each, company-specific tips on what an Anduril interviewer values, and a FAQ section.
Showing 5 problems of 25
- #1easyfrequently asked
1. Two Sum
Find two indices in an array whose values sum to a target. Anduril uses this as a warm-up to gauge hash-map fluency and whether you can reason about the time-space tradeoff before reaching for the brute-force double loop.
- #20easyfrequently asked
20. Valid Parentheses
Determine if a string of brackets is properly nested and closed. Anduril surfaces this problem in early screens because stack-based state-machine reasoning maps directly to parsing command frames and protocol headers in autonomous systems firmware.
- #21easyfrequently asked
21. Merge Two Sorted Lists
Merge two sorted linked lists into one sorted list. Anduril uses this to test pointer discipline and the ability to reason about invariants — skills that transfer to merging ordered sensor-event streams from multiple autonomous subsystems without breaking temporal ordering.
- #53easyfrequently asked
53. Maximum Subarray
Find the contiguous subarray with the largest sum. Anduril uses this to test Kadane's algorithm fluency — a classic greedy-DP technique that mirrors the running-maximum pattern used in signal processing and telemetry anomaly detection on autonomous platforms.
- #206easyfrequently asked
206. Reverse Linked List
Reverse a singly linked list in-place. Anduril asks this to verify you can manipulate pointer-based data structures cleanly — a skill that transfers directly to managing sensor-data pipelines and ring-buffer node chains in embedded firmware.