I applied online in mid-2020 and was contacted around September.

I had a phone call with one of the principal engineers, who was very friendly. We talked a little about my projects and what Agoda is doing.

The first round was a take-home test in Java, which they gave me a week to complete. I felt I nailed that one pretty well. The test content was to write a data compression program. I can't specify the details, as it would be unfair to other interviewees.

The second round was conducted by the hiring team manager and a senior engineer. It involved a coding exercise and some more questions about my experiences. The coding question was a brain teaser.

Right after the second round, I was approached by the head of the department, who told me about their current work at Agoda.

Two days later, I received the offer I had asked for. However, due to personal reasons, I had to decline. In general, though, the interview process was a good experience.

Write a program to calculate the sum of a list of integers. The partial integer sum could overflow, but the sum is guaranteed to be able to fit into a 32-bit integer type.