Fermi Software Engineer Interview Questions

The questions to prepare for a Fermi Software Engineer interview. Questions from real interview reports rank first. Updated daily.

25questions

~4htotal time

Track your progressSign up free to work through all 25 questions and resume where you left off.

Start practicing free →

CodingStart here. 5 questions · ~51 min

Linked List ReversalEasy

Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArrays

Fermi

Explain Time ComplexityEasy

Practice

Implement a linear array-sum solution and explain why its time complexity is O(n).

CodingMathArrays

Fermi

Implement Binary SearchEasy

Practice

Implement binary search to find a target value in a sorted array in O(log n) time.

Recursionbinary searchArrays

Fermi

More Coding questions with a free account

Behavioral & Leadership15 questions · ~152 min

More Behavioral & Leadership questions with a free account

More topics5 questions · ~51 min

Assess Feasibility of New SolutionsMedium

Tests your planning skills, technical evaluation, and ability to de-risk decisions with evidence.

Stakeholder ManagementCommunicationDealing With Ambiguity

Fermi

Real-Time Power Plant DataHard

Tests your system design skills for real-time ingestion, processing, and reliability in industrial settings.

Stakeholder ManagementCommunicationDealing With Ambiguity

Fermi

High Availability DesignHard

Tests your ability to design resilient services with redundancy, failover, and operational robustness.

Stakeholder ManagementCommunicationOwnership

Fermi

RESTful APIs and AdvantagesEasy

Tests understanding of REST principles and practical API design benefits.

Trade-offsScope Management

Fermi

Design Patterns and ContextsMedium

Tests your ability to apply proven patterns appropriately to solve recurring engineering problems.

CommunicationLeadershipOwnership

Fermi

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan

The finish line: interview-readyComplete all 25 questions to finish this plan.