Preface
I often hear some students ridicule that Boss is not hiring, the future is worrying, and the bait is unsuccessful. Hundreds of resumes have been submitted, and the interviews that have finally been received have been brushed off one by one. This battle is too common in the Internet IT industry. A friend next to me talked to me.
Background introduction
He has a small factory background, graduated in 15 years, and an ordinary undergraduate school. This does not seem to have much combat effectiveness, but being able to survive the three sides of Ali also shows that he has good abilities, but where did he lose? He told me about the interview process.
Interview blocked
The questions that the interviewer started to ask were not much different from the previous two interviews. Some basic algorithmic questions plus some basic practical operations went smoothly. The test will begin later when I ask, Redis is single-threaded, how to improve the utilization of multi-core CPU? Redis common performance problems and solutions...
Until the friend was directly confused by the question, the embarrassment and frustration let him know that he was on three sides.
doubt
My friends couldn't help asking me, and they even began to doubt their own value: In what areas of my own shortcomings in recent years? Are you cheap IT laborers or technical talents with scarce capabilities?
Reasons for the difficulty of interviews with big factories
Indeed, the overall environment this year is more severe, but some senior positions are still scarce. Everyone has only seen the generally high salaries of programmers, and it is one of the professions least affected by the epidemic, but the hiring boom of first-line companies is greater than in previous years. It is not that the industry is saturated and does not need too many talents, but they are constantly To find senior software engineers. However, most programmers are often slow to advance from elementary to intermediate level. Even if a friend like me, five years of experience still fails to win the offer of a senior engineer, sometimes the bonus points for working years are not enough.
From basic code to theoretical study, from recharging questions to project practice, no level can be easily passed through.
Promote
If you are:
Programmers who are intensively preparing for gold medals and silver medals;
Confused persons who encounter irreversible bottlenecks in their career development;
Target positions are senior Java engineers, Java architects, CTOs, etc.;
Or as long as you are interested in programming and want to learn skills;
Then i think i can help you
Now there is a technical material that can not only accurately eliminate technical blind spots and accumulate interview experience, but also overcome technical problems such as Redis, JVM, Spring, distributed, and microservices.
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Redis related documents and interviews
Other knowledge points documents and interview materials
Algorithm is also an indispensable technique for interviewing big companies, especially for fresh graduates, social enrollment is more about the depth and breadth of the project and related technologies. Of course, the algorithm is also indispensable.
Zuo Cheng Yun Zuo Shen's Algorithm
The above picture "Programmer Code Interview Guide IT Famous Enterprise Algorithm and Data Structure Problem Optimal Solution" was written by Zuo Shen
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I also prepared a video of Zuo Shen below for everyone
At last
Regarding interview skills, I think the most fundamental thing is to expand the breadth and breadth of your knowledge structure and form your rhetorical structure. Take multithreading as an example. Ask you multithreading? You can start with why you want to use multi-threading? What are the benefits of using multithreading? Will using multiple threads be better than single threads? What problems can multithreading cause? What is the java memory model that causes the problem? how to solve this problem? What is the underlying implementation of the solution such as volatile and synchronize keywords? How do you use multithreading? What are the benefits of using thread pools...
If you really understand and perfect it into a system, the interviewer asks you to talk about multi-threading, and you can finish it for the next 10 minutes. The reference for the interview is not how you compare with the interviewer, but how you compare with your competitors. If the above set is complete, the interviewer's evaluation of you can be imagined.