
Insider One Frontend Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 8 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Insider One.
Frontend Engineer
I had a good first call with the recruiter, and they were encouraging. Then, I was given a case study to complete. I dedicated three full days to it, making sure to finish all the required tasks, tackle the optional 'plus' items, and even add some extra features beyond what was asked. After submitting my work, I didn't hear anything back for about 2.5 weeks. When I reached out to inquire about the status, I was finally told I didn't get the role, but without any specific reasons or feedback. I'm a bit let down by this, especially considering the significant time and effort I put into the case study. Some brief, helpful feedback would have made the experience feel more respectful and worthwhile, even with a negative outcome. So, for other candidates, be ready for a potentially long waiting period and don't count on getting detailed feedback, even if you really go above and beyond on the case study.
- Build a Sudoku game using Vue 3.
Senior Frontend Developer
So I interviewed with Insider. It started with HR asking me some behavioral and motivational stuff to see if I'd fit in. It was a pretty standard chat. Then, they gave me a case study to do in 3 days, which was basically a practical task related to the job, so I could show what I know. I sent it back on time and got feedback pretty fast. After that, I had a technical interview where they asked me about frontend tech, how I code, and design choices. It was a good, deep chat. I didn't get past this stage though. If I had, the last step would've been a meeting with the CTO. The whole thing was smooth and they communicated well.
- Imagine a junior dev changes a button's color, tests pass, and it goes to production, but then something breaks. What steps could have prevented this before deployment?
Front End Developer
I had a HR interview and then got a technical test where I had to build a horse race game in 2 days using a JS framework, including storing and UI components. After finishing the project, I had a technical interview with 4 developers. It seemed positive, but they didn't offer me the job in the end.
- Could you explain your reasoning for using atomic design in the project you built?
Insider One Frontend Engineer Interview Questions
Quoted word for word from Insider One interview reports.
“Build a Sudoku game using Vue 3.”
Read reports →“How does Promise.all function in JavaScript?”
Read reports →“Build a horse racing simulation program.”
Read reports →“TeeterTotter implementation using React or Vue.js?”
Read reports →“Can you build a horse racing game with Vue?”
Read report →“Create an online editor for JavaScript, CSS, and HTML as a take-home assignment.”
Read report →“Imagine a junior dev changes a button's color, tests pass, and it goes to production, but then something breaks. What steps could have prevented this before deployment?”
Read report →“Could you explain your reasoning for using atomic design in the project you built?”
Read report →“Can you describe your past work on projects?”
Read report →Formats, difficulty and experience
Across all 8 Insider One interview reports.