Type · algorithmic

Growth · Software Engineer Interview Guide
Interview language: English
How to Pass the Exa Software Engineer Interview in 2026
The Exa DNA (TL;DR)
The Exa Interview Loop
Your onsite loop will typically consist of 5 rounds.
- 1
Round 1
Recruiter ScreenMotivation, role fit, logistics. - 2
Round 2
Coding ScreenLeetCode-medium algorithmic problems under time pressure. - 3
Round 3
System DesignDistributed systems, trade-offs at scale, architecture under constraints. - 4
Round 4
Onsite CodingLeetCode-hard, debugging, code clarity, edge cases. - 5
Round 5
Behavioral / LeadershipPast evidence of ownership, influence, resolving conflict.
The Danger Zone: Top Reasons Candidates Fail
Based on our database of Exa interview outcomes, avoid these common traps:
- Not considering edge cases like users with no activity or activity spanning across the 30-day boundary.
- Inefficiently iterating through all possible subsequences instead of a linear scan.
- Using a naive approach that iterates through all historical events for each query.
- Incorrectly handling nested objects or arrays.
Test Yourself: Real Exa Questions
Three real prompts pulled from our database.
Type · architecture
Type · ownership
+ many more questions, signals, and worked examples
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Exa Interview Question Bank
A sample from our database, grouped by round. Sign up to see the full set.
9 of 14 questions shown
Recruiter Screen
1- 1
Type · motivation
What interests you about Exa's mission to help companies grow through data and AI, and how do you see your skills contributing to that mission?
Coding Screen
3- 2
Type · algorithmic
Given a list of user sessions, where each session is a list of timestamps representing page views, write a function to find the longest consecutive sequence of page views within any single session. For example, if session A has timestamps [10, 20, 30, 40] and session B has [5, 15, 25, 35, 45], the longest consecutive sequence is 5 (from session B). - 3
Type · algorithmic
Imagine Exa tracks user engagement events. You receive a stream of events, each with a user ID and a timestamp. Design a data structure and algorithm to efficiently return the count of unique users who were active in the last 'k' minutes. Assume 'k' is a parameter. - + 1 more questions in this round (sign up to unlock)
System Design
3- 4
Type · architecture
Design a real-time notification system for Exa that alerts users when key metrics in their dashboard cross predefined thresholds. Consider scalability, reliability, and the ability for users to configure their own thresholds and notification preferences. - 5
Type · architecture
Exa wants to introduce a feature that allows customers to upload large datasets (e.g., CSV files up to 1GB) for analysis. Design the backend system for handling these uploads, processing the data, and making it available for querying. Focus on efficiency, error handling, and user experience. - + 1 more questions in this round (sign up to unlock)
Onsite Coding
3- 6
Type · algorithmic
Implement a function that takes a list of user IDs and their associated 'last login' timestamps. Return the user IDs sorted by their last login time in descending order. If two users have the same login time, maintain their relative order (stable sort). Handle cases where a user might have multiple login entries; consider only the latest one. - 7
Type · algorithmic
Given a JSON object representing a nested user preference structure, write a function to flatten it into a single-level object where keys are dot-separated paths (e.g., 'user.profile.email'). Handle arrays by appending indices to the path (e.g., 'user.addresses[0].street'). - + 1 more questions in this round (sign up to unlock)
Behavioral / Leadership
4- 8
Type · ownership
Tell me about a time you encountered a significant technical challenge or bug in a project that wasn't explicitly assigned to you. What steps did you take to address it, and what was the outcome? - 9
Type · collaboration
Describe a situation where you had a technical disagreement with a colleague or team lead regarding an implementation detail or architectural choice. How did you approach the discussion, and what was the resolution? - + 2 more questions in this round (sign up to unlock)
Unlock all 14 Exa questions, free
No credit card. Every question with its framework, the grading signals interviewers score against, and a worked answer for each.
Interview tracks at Exa
How Exa's DNA translates across functions. Pick your role.
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Practice Exa interviews end-to-end
Exa Mock Interview
Run a live mock interview with our AI interviewer using Exa-style prompts. Get scored on structure, signal, and answer length - exactly how the real loop grades you.
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STAR Stories for Exa Behavioral Rounds
Build a Story Bank of your past wins, mapped to the leadership signals Exa interviewers grade on. Reuse them across every behavioral round.
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Exa Interview Prep Hub
The frameworks behind every Exa round: CIRCLES for product sense, hypothesis-driven debugging for analytical, STAR for behavioral. Learn each one in 10 minutes.
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Interview Frameworks
CIRCLES, STAR, AARRR, RICE, MECE. The exact frameworks that make Exa interviewers nod instead of frown. Step-by-step playbooks with the moves and the pitfalls.
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