What I Learned from Three Rounds of Tech Interviews: Mistakes and Tips

Introduction

Every year after the Chinese New Year, the job market becomes a hiring frenzy, making it hard to choose the right position and company without a clear career plan.

First Interview (Company A)

After arriving at the office, the candidate filled out a form, waited in a lounge, and was greeted by three interviewers. The interview began with a brief self‑introduction, followed by a technical discussion that lasted about half an hour. The interviewers then said they would consult the technical director and HR before scheduling the second round.

Second Interview (Company A)

The second round focused less on technical questions and more on career goals, communication skills, and learning ability. After a short discussion, the interviewers promised that HR would follow up.

Third Interview (Company A)

The third interview resembled the second, covering technical direction, preferred IT forums, and how the candidate would approach the job. The interview concluded with a promise to wait for further notice.

Final Result (Company A)

The candidate was rejected because, despite standing out technically, the hiring manager felt the candidate lacked sufficient knowledge of the company and management experience.

Additional Interview Experience (Company B)

The candidate also describes a separate interview at a startup where the boss proposed a technical partnership with equity, which turned out to be a risky proposition.

Summary of Lessons

1. Research the company and role thoroughly – understand industry, product, and future prospects.

2. Observe interview etiquette – punctuality, polite behavior, and cultural norms matter.

3. Prepare a concise self‑introduction and work experience summary – avoid ad‑hoc answers.

4. Be punctual – arrive 15‑30 minutes early.

5. Review fundamental technical knowledge – interviewers may test basics.

6. Dress appropriately – match the company’s culture.

7. Show willingness to integrate with the team – avoid excessive introversion.

8. Maintain confidence and a clear bottom line – don’t compromise your principles.

9. Understand trade‑offs – know when to say no.

10. Distinguish confidence from arrogance – balance self‑assurance with humility.