The background that

I guangzhou ordinary two ordinary school inside the ordinary students, computer major, the results are medium level. I graduated from a bachelor’s degree in 18 years, and worked in guangzhou Yunjou Technology, a traditional telecom service provider, successively. In the hope that my salary and ability could be improved to a higher level, I began to prepare for the interview with a large factory in November 2020, and successfully got the offer of backend development of Weibao in December 2020. Now I have worked for more than half a year.

Interview preparation

Big factory interview process

A:

Algorithmic problems, handwriting algorithms,

Major technical issues:

Java data structures, Spring, JVM optimization, classloading mechanisms, JVM garbage collection mechanisms;

Distributed FAQ and solutions: common solutions and implementation of distributed lock, selection of MQ common technology and their applicable scenarios: message loss processing, RocketMQ underlying storage mechanism; Distributed CAP theory and comparison of common registries; Redis cache consistency solution, underlying data structure implementation, cluster implementation;

Computer Basics: HTTPS, Network attack (XSS, DSS, CSRF), operating system

2:

Project experience, most challenging technical problems encountered in the past, how to solve? What benefits does it bring to the business?

What are the technical issues with the online environment? What scene? How to troubleshoot?

System design questions:

If multiple users modify an online document at the same time, how do you ensure that multiple users can modify the document at the same time and that the later one overwrites the previous one?

How to design an order platform when the order quantity TPS reaches 10000? What bottlenecks need to be considered?

How to design a database connection pool?

Three sides:

It’s usually a department director interview,

Investigate the purpose of job-hopping, the development of future career goals? Personal strengths and weaknesses? Expectations for the team?

Technical interview:

It’s generally broad, like investigation

How to use and pay attention to cache? How to design a local cache (with expiration time)?

How to design a message queue?

Five:

The director interview of the business team examines individual comprehensive ability, interest in business, understanding of technology and other broad questions

All around:

Generally, it is a CTO interview, to investigate the role of the project done in the past, how to cooperate with the team to complete the project?

What are your personal strengths and weaknesses?

HR interview:

Team culture introduction, salary and welfare communication, on-boarding time, background investigation, on-boarding process notification

After entering dachang

Entering a big factory is not a smooth release, it still needs to pay a lot of efforts to get familiar with the business and improve technology, but compared with the previous companies, the main differences of Micro Insurance are as follows:

1. The salary will definitely increase, and there will be many benefits, including meal supplement, shuttle bus welfare, gym, 12% of the total provident fund and holiday subsidy

2. Work:

I participated in the whole process of business implementation through technology: business discussion, technical scheme design, follow-up business operation index monitoring, cultivation of business thinking through technology to make business implementation, and technology had a certain say;

The task of development is not only to complete the coding, but also to coordinate communication, hold meetings and discuss, and coordinate other personnel to implement the business, which requires high comprehensive ability and self-drive ability of people.

3. Personal growth

I know that my technical foundation is still weak, so I need to try my best to make up the technical debt of the basic computer knowledge, and have more urgency to focus on improving myself, so that I can advance to a higher rank and a better Internet platform in the future.

I really have nothing to be proud of in my current job, because the top graduates of 985 and 211 got more salary from SSP or SP offer from big factory. However, I know that it is great for ordinary second-degree students to enter big factory, and I have a clearer direction and sense of control for the future.

Tencent micro insurance internal push

At present, the company’s business expansion, front-end, back-end, data, algorithms have HC, if you think you have good ability, interested in Internet finance, you can contact me and communicate with me on wechat, 18814142735, you can also scan the following TWO-DIMENSIONAL code to send your resume

Tencent Micro insurance, wechat pay nine grid inside the insurance service, 16 salary, Tencent group welfare, canteen, bus, gym