Jane Street Interview Questions (2026-2027)

Jane Street SRE Technical Phone Screen Featuring Rate Limiting Algorithm

Jane Street | TDOE| London | Technical | What to expect?

Arbitrage System: Detect Arbitrage Opportunities in a Currency Exchange Graph

Arithmetic Encoding: Implement Arithmetic Coding for Lossless Data Compression

Jane Street SWE Phone - Arithmetic Evaluator

Client Side Validation: Build a Form Validation Library with Composable Rules

Code Folding: Implement Code Block Detection and Folding for a Text Editor

Exchange System: Design a Multi-Asset Exchange with Order Routing

Gamepad Input Tracker: Parse and Replay Gamepad Input Sequences with Timing

Infinite Board Game: Design a Sparse Infinite Grid Game World with Entity Tracking

Live Stream: Design a Real-Time Live Streaming Platform with Chat and Viewer Counts

Merge Diff: Implement a Three-Way Merge Algorithm for Text Files

Jane Street SWE Phone - MultiCache

Real-time Order Book Stream Comparison: Detect Discrepancies Between Two Feed Sources

Jane Street SWE Onsite - Ring Buffer

Jane Street SWE Phone - Snake Game

Jane Street SWE Phone - Stack-Based Interpreter

Streaming Compression: Implement Run-Length Encoding on a Byte Stream

String Diff: Compute and Display Line-Level Diffs Between Two Text Files

String Matching Game: Implement a Wordle-Style String Guessing Game Engine

Supermarket Queue: Simulate and Optimize a Multi-Checkout Queue System

Jane Street SWE Phone - Text Editor Backend

Tree Backend: Design a REST API for Managing a Hierarchical Tree Structure

TDOE intern interview jane street

Jane Street Quantitative Research Intern Technical Phone Screen