Grammarly Interview Questions (2026-2027)

#435 Non-overlapping Intervals

All K Substrings - Generate All Substrings of Exactly Length K

Grammarly SWE Phone - Duplicate and Missing Numbers

Grammarly SWE Phone - Fibonacci Number

Grammarly SWE Onsite - Merge Correction

Grammarly SWE Phone - Minimum Time Difference

Reduce List - Repeatedly Remove Elements by Rule Until One Remains

Grammarly SWE Phone - Remove Adjacent Duplicates

Java Code Review - Identify Bugs and Smells in a Concurrent Data Structure

Split Text - Tokenize and Split Text by Sentence and Paragraph Boundaries

Grammarly SWE Phone - Backspace String Compare

Subscription and Subject Class - Implement an Observable/Observer Pattern

Word Match - Find All Dictionary Words Present in a Grid of Letters

Grammarly Fulltime Software Engineer Tech Phone Screen Experience

Recent Grammarly VO HR Screen Interview Experience for Engineering Roles

Grammarly Software Engineer Fulltime Technical Phone Screen Interview

#56 Merge Intervals

#1047 Remove All Adjacent Duplicates In String

#966 Vowel Spellchecker

#380 Insert Delete GetRandom O(1)

#35 Search Insert Position

#359 Logger Rate Limiter

#404 Sum of Left Leaves

#150 Evaluate Reverse Polish Notation