I applied online. The process took 1 week. I interviewed at Zalo (Ho Chi Minh City) in Dec 2019
Interview
Four rounds: - HR screening: very basic DSA and database questions - 100 multiple-choice questions: 20 English, 40 trivia, 40 math and problem solving. - Technical interview: with direct manager; whiteboard coding, database, network, algorithm, Java core. - Technical/behavioral interview: with Head of Department; past projects, soft skills.
Including logic test round with 100 questions, after that there is a face-to-face interview with HR and Tech manager. The response is fast after the technical interview if candidate have a good result.