Type · Algorithmic
Given a list of user reviews, each with a timestamp and a rating, write a function to find the average rating for reviews submitted within any given 24-hour window. Optimize for efficiency.
How to Pass the Trustpilot Software Engineer Interview in 2026
The Trustpilot Software Engineer interview runs 5 rounds: Recruiter Screen, Coding Screen, System Design, Onsite Coding, and Behavioral / Leadership. JobMentis holds 12 Software Engineer questions for Trustpilot, last updated October 23, 2026.
Growth · Software Engineer Interview Guide
Sign up to see ATSHeadquartered in DenmarkInterview language: English
The Trustpilot DNA (TL;DR)
Trustpilot values collaboration, impact, and a customer-centric mindset, often assessed through behavioral questions and practical tasks. They look for candidates who align with their mission of building trust and transparency in the review ecosystem.
The Trustpilot 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 problems, reasoning about defects, 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 Trustpilot interview outcomes, avoid these common traps:
- Not handling edge cases like empty lists or single reviews.
- Choosing a trivial problem that wasn't technically challenging.
- Using a full sort when a partial sort or heap-based solution would be more efficient for large K.
- A monolithic notification sender that doesn't scale.
Test Yourself: Trustpilot Interview Questions
Three questions from the Trustpilot bank.
Type · Behavioral
STARTell me about a time you had to work with a difficult stakeholder or team member. How did you approach the situation and what was the outcome?
Type · System Design
Design a system to detect and flag duplicate reviews for the same business. Consider potential false positives and negatives.
+ many more questions, signals, and worked examples
Sign up to unlock the full Trustpilot grading rubric
Trustpilot Interview Question Bank
A sample from our database, grouped by round. Sign up to see the full set.
9 of 12 questions shown
1
Recruiter Screen
1- 1
Type · Motivation
What interests you about Trustpilot, and why are you looking to move from your current role?
2
Coding Screen
3- 2
Type · Algorithmic
Given a list of user reviews, each with a timestamp and a rating, write a function to find the average rating for reviews submitted within any given 24-hour window. Optimize for efficiency. - 3
Type · Algorithmic
Implement a function that takes a list of company IDs and their corresponding review counts, and returns the top K companies sorted by review count in descending order. Handle ties appropriately. - + 1 more questions in this round (sign up to unlock)
3
System Design
3- 4
Type · System Design
Design a system to detect and flag duplicate reviews for the same business. Consider potential false positives and negatives. - 5
Type · System Design
Design the backend service for Trustpilot's 'TrustScore' calculation. How would you handle real-time updates, historical data, and potential inconsistencies? - + 1 more questions in this round (sign up to unlock)
4
Onsite Coding
2- 6
Type · Algorithmic
Implement a function to find the longest consecutive sequence of positive reviews (rating >= 4) for a given business, considering reviews submitted within a specific date range. Handle edge cases. - 7
Type · Debugging
Root Cause Analysis (Issue Tree + 5 Whys)A user reports that their review count on their profile page is sometimes incorrect. Here's a simplified version of the code that fetches and displays review counts. Find and fix the bug.
5
Behavioral / Leadership
3- 8
Type · Behavioral
STARTell me about a time you had to work with a difficult stakeholder or team member. How did you approach the situation and what was the outcome? - 9
Type · Behavioral
STARDescribe a challenging technical problem you faced in a past project. Walk me through your process for diagnosing and solving it, and what you learned. - + 1 more questions in this round (sign up to unlock)
Unlock all 12 Trustpilot 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 Trustpilot
How Trustpilot's DNA translates across functions. Pick your role.
Trustpilot resume and cover letter
Applications to Trustpilot go through an applicant tracking system, which parses your resume before a recruiter reads it. Keep the layout plain and describe your skills in the words of the posting. The interviews usually run in English, so send your resume and cover letter in English unless the posting asks for another language. Give each point in the Trustpilot DNA above a bullet that proves it.
Check your resume against the Trustpilot job posting
Upload your resume with the Trustpilot job description to see your ATS score, the keywords you are missing and what to fix before you apply.
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Write your Trustpilot cover letter
Drafted from your resume and the Trustpilot posting, so it names what you actually did. You edit it before you send it.
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Compare Trustpilot with similar employers
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Practice Trustpilot interviews end-to-end
Trustpilot Mock Interview
Run a live mock interview with our AI interviewer using Trustpilot-style prompts. Get scored on structure, signal, and answer length - exactly how the real loop grades you.
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STAR Stories for Trustpilot Behavioral Rounds
Build a Story Bank of your past wins, mapped to the leadership signals Trustpilot interviewers grade on. Reuse them across every behavioral round.
Open
Trustpilot Interview Prep Hub
The frameworks behind every Trustpilot 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 Trustpilot interviewers nod instead of frown. Step-by-step playbooks with the moves and the pitfalls.
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Sample answers
What a strong answer to these Trustpilot interview questions shows.
Given a list of user reviews, each with a timestamp and a rating, write a function to find the average rating for reviews submitted within any given 24-hour window. Optimize for efficiency.
A strong answer shows: Ability to identify and implement a sliding window or similar efficient approach.; Clean, readable code with proper variable naming.; Consideration of time and space complexity..
Tell me about a time you had to work with a difficult stakeholder or team member. How did you approach the situation and what was the outcome?
A strong answer shows: Demonstrates strong communication and interpersonal skills.; Ability to navigate conflict constructively.; Focus on collaboration and finding common ground.; Evidence of empathy and emotional intelligence..
Frequently asked questions
How many interview rounds does Trustpilot run for Software Engineer candidates?
5 rounds, in this order: Recruiter Screen, Coding Screen, System Design, Onsite Coding, and Behavioral / Leadership.
What does Trustpilot look for in Software Engineer candidates?
Trustpilot values collaboration, impact, and a customer-centric mindset, often assessed through behavioral questions and practical tasks. They look for candidates who align with their mission of building trust and transparency in the review ecosystem.
In which language does Trustpilot run its interviews?
Trustpilot usually interviews in English.
How many Trustpilot Software Engineer interview questions does JobMentis hold?
12 questions across the rounds of the Trustpilot loop, last updated October 23, 2026.
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