Toggl Frontend Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 17 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Toggl.
Toggl
Frontend Developer
Mid Difficult Positive experience Accept offer 4 rounds
Interview process
Technical screen Phone screen Take home Onsite
Interview formats
Technical Coding Behavioral
First, there's an online form with tech questions, mostly about React and modern JS. If you pass, they'll schedule a 1-hour interview with the frontend lead for your experience and a small programming logic test. Then comes a paid test week, which is the toughest part. The codebase is huge and intimidating at first, and you'll need to figure things out with little guidance. If that goes well, the final step is a 1-hour casual chat with the engineering manager about what you'll be doing at toggl (this last talk isn't a pass/fail thing).
Confirmed questions3 questions
- What does a generator function output?
- Can you explain Async/Await and promises?
- How would you approach this programming logic problem?
Toggl
Frontend Developer
Entry Easy Positive experience Accept offer 4 rounds
Interview process
Take home Technical screen Onsite Background check Offer
Interview formats
Technical Coding Behavioral
The process is pretty simple and detailed on Toggl's website. First, you take a 15-25 minute online test. If accepted, you do a 1-hour interview with the team lead, mostly general questions and a simple coding challenge at the end. If accepted, you go for a test week where you meet the team and work on issues on the actual product. The issue's difficulty vary, especially since the codebase is quite big XD. If accepted, you have a meeting with the CEO or someone from the leadership team. If you've arrived at this point you're very likely accepted since people don't usually get rejected at this stage XD. Then, you get an offer! 🎉
Confirmed questions1 question
- Can you tell me about some projects you've worked on?
Toggl
Frontend Developer
Entry Average Negative experience No offer 2 rounds
Interview process
Take home Recruiter call
Interview formats
Technical
I took an online test, which I passed well. But after that, they stopped the process without much explanation. Just a generic email saying they had many candidates, and even though I seemed to fit, they needed someone else. It would be better if they put this info in the job description to save everyone time. Total waste of time.
Confirmed questions4 questions
- How do you prevent re-rendering in React?
- Can you explain PureComponent and PureFunction?
- Explain the concept of binding 'this' in JavaScript.
Toggl Frontend Engineer Interview Questions
Quoted word for word from Toggl interview reports.
“Write a recursive function to sum the values from a generator.”
Read reports →“What's the difference between useLayoutEffect and useEffect?”
Read reports →“Can you convert a function to use ES6 syntax?”
Read reports →“What does a generator function output?”
Read reports →“How do you prevent re-rendering in React?”
Read report →“Implement a simple REST API parser in JS, then display and manipulate the data it received.”
Read report →“Explain the concept of binding 'this' in JavaScript.”
Read report →“Can you explain PureComponent and PureFunction?”
Read report →“Can you explain CSS media types and their use with various devices?”
Read report →Formats, difficulty and experience
Across all 17 Toggl interview reports.