HubSpot Software Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 543 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at HubSpot.
HubSpot
Technical Lead
Lead Difficult Negative experience No offer 2 rounds
Interview process
Recruiter call Technical screen
Interview formats
Coding Behavioral
The interview process began with a recruiter screening where they briefly discussed the role and asked why I'm looking for a job at Hubspot. This was followed by a 90-minute Codesignal coding challenge. The task was to implement a task management system in four phases. Although Hubspot encourages AI use, it was strictly forbidden for this code challenge, which felt like a contradiction. I've heard from Hubspot employees that the TL/TL2 roles are best avoided due to reports of verbal abuse and the role being set up for failure, expecting a mix of engineering manager and IC duties without fair compensation.
Confirmed questions1 question
- What is your motivation for seeking this opportunity at Hubspot?
HubSpot
Software Engineer Intern
Intern Average Positive experience No offer 3 rounds
Interview process
Recruiter call Technical screen Technical screen
Interview formats
Behavioral Coding Technical
This review is for the USA SWE Summer Intern 2025 FE role. I applied through RippleMatch and then got invited to do the online assessment (which I think you know what I mean). After finishing it, I got an email to set up a recruiter screening. It was a Zoom call without video to check my culture/behavior fit and talk about logistics. After that, I moved to the final round, which had two interviews. Since I applied for FE, I had a coding interview and a JavaScript interview.
Confirmed questions4 questions
- What makes you want to work at HubSpot?
- Describe a time you had a team conflict and how you resolved it.
- Can you merge two sorted lists?
HubSpot
Software Engineer
Entry Difficult Neutral experience No offer 3 rounds
Interview process
Technical screen Recruiter call Technical screen
Interview formats
Technical Coding System Design
So they did three rounds with me. First one was an online assessment, second was behavioral, and the third was system design plus DSA. I absolutely crushed the DSA part with both brute-force and optimized solutions for a medium-level graph problem. My system design solution was also really strong and the interviewer seemed happy. Still, didn't get the job though. It felt like one of my best interviews, but still, they didn't hire me. They seem to be interviewing people just for show, and I haven't heard of them hiring anyone.
Confirmed questions2 questions
- Design a streaming service
- Solve a medium-level graph question
HubSpot Software Engineer Interview Questions
Quoted word for word from HubSpot interview reports.
“Given a string and an integer, find the count of the substring that has the greatest number of occurrences.”
Read reports →“Create a function that inserts commas between each character of a string and then attach this function to an object's prototype.”
Read reports →“Imagine a messaging system with accounts numbered 1 to N. How would you identify a spammer, given that they message everyone but don't receive messages?”
Read reports →“Given an API key to fetch data (json) from a url containing a list of partners and their availability dates, find the days when the most partners can attend an event.”
Read reports →“Given an API to fetch data and another API to send results to, process the fetched data and return the outcome.”
Read report →“How would you approach merging sorted lists and then truncating the result to a specific length k?”
Read report →“What is your strategy for identifying the most frequent substring of length k within a given string?”
Read report →“Design a weather app that fetches weather information in zip format, stores it in a database, and returns it to the user based on their requested zipcode.”
Read report →“Can you provide a variation of the 2-Sum problem where you need to return all possible combinations that sum up to the target?”
Read report →Formats, difficulty and experience
Across all 543 HubSpot interview reports.