Shulou(Shulou.com)06/03 Report--

Is it difficult for programmers to find a job in 2020? When you open the major recruitment websites, you can clearly feel that there is much less recruitment information this year, and companies require higher skills and more comprehensive technical coverage of the interviewees.

It's really not easy to change jobs easily this year. But at this time, we should settle down and sort out our own technical system.

Careful study you will find that most of the current recruitment is Baidu, Toutiao, Ali and other top enterprises, and a large part of the positions are related to big data. Compared with Java, PHP, Linux operation and maintenance and other traditional development posts, the same working years, big data post pay is higher.

For most ordinary programmers, if you do not have great confidence in the field of traditional technology for a long time, you might as well learn some big data technology to enrich yourself now and at least one more opportunity in the future.

Recently climbed more than 100 sets of recruitment website senior big data engineer JD, combed a "big data Senior Development engineer" interview Xmind, including knowledge context + branch details, more content, here in the form of pictures to show you a part.

This information is particularly suitable for:

1, want to change jobs in the near future, to interview programmers in big data development-related positions, check leaks and fill gaps, in order to make up for the deficiency as soon as possible; 2, people who are engaged in Java, PHP, Linux operation and maintenance, and want to switch to big data's hot industries. 3, want to understand the latest technical requirements of "first-line Internet companies", compare and find out their own strengths and weaknesses, and evaluate their competitiveness in the existing market; 4, currently engaged in big data work, but has not yet formed a systematic knowledge system, lack of clear promotion direction and learning path of programmers.

In addition to the interview materials, Kafka study is essential if you want to change careers to advanced big data.

Kafka is a clich é, which is basically used by companies that do big data. But do you really know the core technology of Kafka? Want to know "how does Kafka achieve zero copy? how does Kafka achieve high throughput of massive data? what is ISR strategy, and what are LEO and HW of Kafka?" It is not easy to ask questions in these interviews.

Therefore, give away another Kafka feature video to help you kill all the Kafka problems related to the interviewer.

The video starts with the Kafka source code, gives an outline, helps to grasp the operation principle of Kafka Producer, and deeply understands the implementation mechanism of all the features of Kafka, so as to improve the system architecture ability.

Main knowledge points:

Kafka overall architecture design Kafka write data core process analysis Kafka Producer pull metadata RecordAcuumulator package batch appeal content, do you have a general idea of how difficult it is for programmers to find a job in 2020? If you want to know more, welcome to follow the industry information channel!

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