I applied online. The process took 3 days. The role was for the growth department in Israel, featuring an 80% front-end and 20% back-end split.

First, I had a phone call with the recruiter. After that, I had a 30-minute Zoom meeting with the team lead of the team the role is for. She mostly explained the role and the department, and she did a demo of the product. I asked questions about the role.

The recruiter called me back for the first technical interview, which was a 1.5-hour interview with two programmers from the department. They asked 3 live code questions:

• An array of numbers: find the first number that occurred less than 2 times.
• An interface SetAllable: implement a class with TypeScript that does setAll with O(1).
• A heavyCode function in a loop and how to improve it.

At this point, I did only the first interview. If I'll continue to the next one, I'll update here.

There was an array of numbers. I had to find the first number that occurred less than two times. There was one answer.

There was an interface named SetAllable with methods get(key: string): number | undefined;, set(key: string, value: number): void;, and setAll(value: number): void;. I needed to determine the time complexities of O(?). The usage examples were set('a', 5);, set('b', 2);, get('a') which returned 5, setAll(8);, set('a', 2);, get('a') which returned 2, get('b') which returned 8, and get('c') which returned null. There was one answer.

It was kind of a bonus question because we had more time in the interview. There was a code snippet: const heavyCode = () => { // Heavy operation that takes 1s. }, const heavyFunction = () => { for (let i = 0; i < 10000; i++) { heavyCode(); } }, and heavyFunction();. The questions were what will happen to the browser and how to fix it. There was one answer.