Difficulty: 4–5 / 5

Hardest Internship Interviews

FAANG and elite quant firms — the most rigorous technical screens in 2026.

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#1

Citadel

Machine Learning Researcher – PhD Intern - US �

4–5 / 5Prep →
#2

Meta

Research Scientist Intern - Non-Linear Optics - PhD

4–5 / 5Prep →
#3

Meta

Research Scientist Intern - Robot Foundation Models - PhD

4–5 / 5Prep →
#4

Meta

Research Scientist Intern - AI Core Machine Learning - PhD

4–5 / 5Prep →
#5

Meta

Research Scientist Intern - Tracking & Sensor Fusion - PhD

4–5 / 5Prep →
#6

Meta

Research Scientist Intern - Human Computer Interaction - PhD

4–5 / 5Prep →
#7

Meta

Research Scientist Intern - Waveguide Design - PhD

4–5 / 5Prep →
#8

Meta

Research Scientist Intern - Multimodal Generative AI and Robotics - PhD

4–5 / 5Prep →
#9

Meta

Research Scientist Intern - 3D Scene Reconstruction / Generative AI - PhD

4–5 / 5Prep →