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Jane Street interviews

Campus onsite trials · Nov 2026 / engineering verification · Jun 2026

Read the code before trusting the result

“verifying the quality, structure, and intention of code”

Matthew SafferAuthor; works on distributed systems infrastructure and productivity tooling

Jane Street Blog · 2026-11-02

A limited interview trial

A cache returns the right value. What changes next?

Example

“often not following essential invariants of the codebase”

Yaron MinskyAuthor, Jane Street engineering essay

Jane Street Blog · 2026-06-07

A separate engineering concern

What input makes this comparator contradict itself?

Example

Use tests and name their boundary

“Tests are incredibly valuable as well”

Yaron MinskyAuthor, Jane Street engineering essay

Jane Street Blog · 2026-06-07

Work evidence, not a hiring rubric

Can every individual share look right while the whole allocation is wrong?

Example
Interview sources

Some campus onsite trials — Some campus onsite rounds trial new formats; most coding rounds remain unassisted. Confirm which format applies to your invitation.

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