Grammarly interview questions

Showing 1–11 of 11 results

• Build AI chat for spreadsheetsMedium

  This question evaluates a candidate's ability to design ML-driven conversational interfaces and systems integration, emphasizing LLM orchestration, tool schema and API design, authorization and validation, ambiguity handling, atomic multi-step execution, safety against prompt injection, and operational concerns like latency, cost, scaling, and observability. It is commonly asked to assess architectural thinking for integrating language models with controlled tool-calling and safe execution; category: ML System Design; level of abstraction: system-level design requiring both conceptual understanding and practical application.

  GrammarlySoftware EngineerML System DesignOnsite
• Design Disappearing Direct MessagesMedium

  Design an ephemeral direct messaging system that reliably deletes messages after viewing across multiple devices, handles offline delivery, and balances user privacy with abuse reporting.

  GrammarlySoftware EngineerSystem DesignTechnical Screen
• Design a Figma-like collaborative editorMedium

  This question evaluates a candidate's ability in designing real-time collaborative systems, covering concurrency control (OT/CRDT trade-offs), low-latency messaging, data modeling, persistence, client-server synchronization, and fault tolerance for unreliable networks.

  GrammarlySoftware EngineerSystem DesignTechnical Screen
• Design a Read-Once Chat SystemMedium

  This question evaluates a candidate's competence in large-scale system design and distributed messaging, including API and data model design, read-once delivery semantics, consistency trade-offs, and operational concerns like scaling, partitioning, and failure handling.

  GrammarlySoftware EngineerSystem DesignOnsite
• Design a collaborative spreadsheetMedium

  This question evaluates system design and distributed-systems competencies such as real-time collaboration, concurrent edit conflict resolution, data modeling for workbooks and sheets, session management, persistence and concrete API design.

  GrammarlySoftware EngineerSystem DesignOnsite
• Design a restaurant reservation systemMedium

  This question assesses the ability to design a distributed reservation system that handles high concurrency, prevents double-booking, and ensures data consistency.

  GrammarlySoftware EngineerSystem DesignTechnical Screen
• Implement a Transactional Key-Value StoreMedium

  This question evaluates understanding of transactional state management, data structure design, and consistency/visibility semantics in an in-memory key-value store that supports nested transactions.

  GrammarlySoftware EngineerCoding & AlgorithmsOnsite
• Implement a rate limiter and a pub/sub APIMedium

  This problem evaluates your ability to implement a thread-safe rate limiter using the token bucket algorithm and design a lightweight, in-memory publisher-subscriber system.

  GrammarlySoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Merge overlapping correctionsMedium

  This question evaluates a candidate's ability to manage and manipulate overlapping intervals with multi-criteria tie-breaking, preserve original metadata across splits, and design efficient data structures and algorithms for producing non-overlapping correction spans.

  GrammarlySoftware EngineerCoding & AlgorithmsOnsite
• Recover a Rooted Tree from Depth-Annotated PreorderEasy

  Reconstruct a general ordered tree from its depth-annotated preorder traversal string and return it as a nested tuple.

  GrammarlySoftware EngineerCoding & AlgorithmsTechnical Screen
• Reverse a Singly Linked ListMedium

  This problem tests your understanding of pointer manipulation and iterative/recursive techniques for modifying linked structures in-place.

  GrammarlySoftware EngineerCoding & AlgorithmsTechnical Screen