Before delivering Meta, I realized that my programming skills needed to be improved. So, I want to consolidate algorithm and data structure capabilities. After comparing several interview coaching agencies on the market, I chose Drill Insight, which specializes in North American IT job training. His interview coaching covers algorithms and data structures, system design, and behavioral interviewing. Through their guidance, I not only improved my professional skills, but also established a solid programming thinking and problem-solving framework.
What helped me most was the mock interview, the difficulty of which was very close to that of the real technical interview. After each simulation, the tutor would provide detailed feedback, pointing out the holes in my thinking in solving the problem, the details of the coding, and the room for optimization of time and space complexity.
For example, I used Recursion to solve a Binary Tree traversal problem, but it was not very efficient.My tutor advised me to use Iteration and gave me a review of binary tree traversal methods. Such as Pre-order Traversal, In-order Traversal, and Post-order Traversal, and how to optimize the time complexity of code.
In addition to algorithmic interviews, system design is an area that I need to strengthen in particular. During the tutoring process, I improved my understanding of large-scale distributed systems through a series of advanced interview questions. For example, designing a message queuing system, or designing a highly available online payment platform, these problems involve how to deal with the core issues of Scalability, Fault Tolerance, and High Concurrency of the system.
In the process of each system design, I not only learned how to split system modules reasonably, but also learned how to consider factors such as system bottlenecks, Load Balancing and Data Consistency. Through constant practice, I was able to clearly express my design ideas and cope with the interviewer's difficult questions.
After months of hard work and interview coaching, I finally received an SDE Offer from Meta. My algorithmic ability, system design ability, and behavioral interview performance were comprehensively tested during the interview. The interviewer spoke highly of my clear thinking in coding, efficient problem-solving methods, and calm handling under pressure.
Release time:2025-03-25
