Vercel interview questions

Showing 1–5 of 5 results

• Count Hits in the Past Five MinutesMedium

  Implement a five-minute hit counter with ordered timestamped operations, repeated hits, and an explicit 300-second expiration boundary.

  VercelSoftware EngineerCoding & AlgorithmsTechnical Screen
• Design Collaborative Document EditingMedium

  This question tests your ability to design a distributed system capable of handling concurrent, low-latency document edits using conflict resolution strategies.

  VercelSoftware EngineerSystem DesignOnsite
• Group Tree Nodes into Layers from the Leaves Up to the RootEasy

  Given a rooted tree described as an undirected edge list, return its nodes in layers from the leaves up to the root, where each node sits one layer above its highest child and each layer is sorted. It tests rooting a tree from a graph, bottom-up ordering, and handling very deep, path-shaped trees.

  VercelSoftware EngineerCoding & AlgorithmsOnsite
• Search Recorded Metrics by Name, Tags, and RecencyMedium

  Design an in-memory metric storage and querying system that allows recording time-series metrics with key-value tags and retrieving the most recent matches filtered by name and tags.

  VercelSoftware EngineerCoding & AlgorithmsOnsite
• System Design: A Short-Link Service That Redirects in MillisecondsEasy

  Design a service that turns long URLs into short, shareable links and redirects visitors to the original destination with minimal latency. Tests capacity estimation, collision-free code generation under concurrent writes, a read-optimized data model, and how to scale and harden the redirect path.

  VercelSoftware EngineerSystem DesignOnsite