Jane Street Machine Learning Engineer Interview Questions

Practice the exact questions companies are asking right now.

9 Questions 1 Company04.24.2026
Showing 9 results
Role
Jane Street logo
Jane Street
Hard
Machine Learning Engineer

Build a time-series forecasting model

Build a time-series forecasting model Forecast the Next H Steps for Time Series Context You are given one or more time series with timestamps and nume...

Machine Learning
46
0
561 people solved
Aug 1, 2025
Jane Street logo
Jane Street
Hard
Machine Learning Engineer

Design and implement a tiny language runtime

Design and implement a tiny language runtime Minimal Imperative Language — Design and Implementation Task Context You are asked to design and implemen...

System Design
36
1
423 people solved
Aug 1, 2025
Jane Street logo
Jane Street
Medium
Machine Learning Engineer

Code Editor with Block Shrink and Expand (Code Folding)

Implement the core of a code editor (similar to VS Code) that supports code folding: collapsing ("shrink") and restoring ("expand") indentation-based ...

Coding & Algorithms
3
0
35 people solved
Apr 24, 2026
Jane Street logo
Jane Street
Hard
Machine Learning Engineer

Design an end-to-end training framework

Design an end-to-end training framework Design an End-to-End Time-Series Forecasting Framework (PyTorch) You are tasked with designing a production-gr...

ML System Design
34
0
330 people solved
Aug 1, 2025
Jane Street logo
Jane Street
Hard
Machine Learning Engineer

Implement compiler for custom language

Implement compiler for custom language Design and implement a simple compiler/interpreter Goal Design and implement a small compiler/interpreter for a...

System Design
47
0
386 people solved
Aug 4, 2025
Jane Street logo
Jane Street
Hard
Machine Learning Engineer

Predict future time-series values

Predict future time-series values End-to-End Time-Series Forecasting (PyTorch) Context You are given one or more regularly sampled numeric time series...

ML System Design
24
0
259 people solved
Aug 4, 2025
Jane Street logo
Jane Street
Easy
Machine Learning EngineerNew Grad

Marketplace Data Store: Order Matching and End-of-Day Reconciliation

Marketplace Data Store: Order Matching and End-of-Day Reconciliation You are building the core of a marketplace where sellers list individual units of...

Coding & Algorithms
0
0
14 people solved
Aug 2, 2025
Jane Street logo
Jane Street
Medium
Machine Learning EngineerIntern

Board Simulation: Bottom-Insert Pieces with Uniform Row and Column Detection

Board Simulation: Bottom-Insert Pieces with Uniform Row and Column Detection You must simulate a 2-D game board with R rows and C columns. Each cell i...

Coding & Algorithms
1
0
18 people solved
Aug 27, 2025
Jane Street logo
Jane Street
Medium
Machine Learning Engineer

Connect-N on an Infinite Board with Gravity

You are asked to implement a variant of the classic Connect Four game, played on an unbounded board. Game Rules - The board consists of vertical colum...

Coding & Algorithms
1
0
17 people solved
Dec 26, 2025

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Jane Street Machine Learning Engineer Interview Questions (Updated 2026) | PracHub