What to Expect in Google’s 7‑Round Interview: A Candidate’s Journey and Tips

Personal Background

I hold a 985 undergraduate degree and a top‑2 master’s degree, with over four years of experience as a backend team lead at DJI.

Interview Process

Google’s interview pipeline typically follows these steps:

Recruiter Prescreen →

Phone Interview (1–2 sessions) →

Onsite Interview (4–5 sessions, feedback within a week) →

Hiring Committee Review →

Offer Review →

Offer Delivery (Yippee!)

I went through one phone interview and five onsite rounds, totaling seven rounds including the HR prescreen.

Resume Submission

My previous attempts at campus recruitment failed due to high competition. I also tried an internal referral at Google, but the resume did not pass the initial screening for various reasons such as level mismatch and lack of standout achievements.

HR Interview

The recruiter prescreen consists of basic computer‑science fill‑in‑the‑blank and multiple‑choice questions, covering topics like quicksort complexity and stability of selection sort. This round quickly filters out unsuitable candidates.

Phone Interview

The phone interview is conducted via a shared Google Doc, requiring a stable internet connection. I solved a binary‑tree traversal problem presented in a business scenario, wrote code, and discussed edge cases and possible optimizations.

Onsite Interview

After passing the phone screen, HR schedules the onsite interview, usually spanning 4–5 hours over one or two days. The onsite consists of coding on a laptop (or shared screen), system‑design, and algorithm questions. Sample topics included binary‑tree traversals, DP for shortest‑path matrix problems, Dijkstra and A* algorithms, and a knowledge‑graph design exercise.

Although the onsite questions felt less daunting than expected, they still required solid understanding of data structures, algorithms, and the ability to abstract real‑world problems into code.

Lunch

During the onsite day, a Google engineer joins for lunch, offering a chance to discuss work life and ask informal questions.

English Interview

The English interview requires preparation of basic technical vocabulary and a clear self‑introduction. Practicing mock interviews in English helps avoid nervousness.

Outcome

Despite completing all rounds, I received a rejection the next day. Google’s feedback was prompt, highlighting areas for improvement and encouraging continued practice for future attempts.

Source: 程序员石头