Shulou(Shulou.com)06/02 Report--

According to the Java talent inventory report released by the high-end recruitment platform 100offer, in the past 2018, Java was still the most popular technical language with the largest supply and demand for recruitment.

On this basis, the recruitment demand for Java development in the Internet industry is also the largest supply and demand for technical jobs in recent years, and the change is the most stable. The proportion of face invitations issued by enterprises to Java engineers is also much higher than that of other positions. On the 100 offer platform, the demand for Java engineers accounts for nearly 60% of the total demand. It can be said that in the current context of "layoffs" in major companies, Java engineers, especially senior Java engineers, are still hard currency.

What kind of engineer can be called a senior engineer, and how to become a senior Java engineer?

From the point of view of working time, senior engineers generally have 3-5 years of working experience. For Java engineers with 3-5 years of experience, enterprises will require solid algorithm foundation and programming ability, distributed and high concurrency experience is preferred, and can be independently responsible for the development of a module. To be versatile in technology, not only to write a good Java, but also to learn and apply the new technologies needed by the company's business quickly. Take an experienced Java developer and recruitment as an example:

From the recruitment information above, you can see several messages:

1. Even in this cold winter of layoffs, companies are willing to pay for capable senior Java engineers. It is no problem for a senior programmer to reach 50w +. In the IT world, there is also a view that a good programmer is 10 times more efficient than the average programmer, but for a somewhat innovative project, companies would rather pay twice the salary to choose a good programmer rather than hire two mediocre programmers with the same money.

2. Focusing on specific skills, what do companies expect from experienced programmers? Almost all recruitment requirements will mention: familiar with distributed systems, distributed system development experience is preferred.

The high threshold of distributed system is mainly reflected in three aspects:

The knowledge involved is too wide, the concepts are similar, and the degree of differentiation is not high, such as distributed storage, distributed cache, RPC, micro-services and so on, which often lead to confusion in learning.

There are higher requirements for practical scenarios, generally small projects will not use these skills, and there is a small proportion of programmers who can come into contact with distributed system development. even if they know some distributed related technical concepts, it is very difficult to land on the ground. really form a technical mind, and technologies that cannot be practiced will soon be left behind.

There are a lot of abnormal cases. Compared with the stand-alone system, the distributed system has to consider the complicated abnormal situations in every link. For example, network anomalies that do not exist in stand-alone systems are common in distributed systems, and any influential distributed framework will spend a lot of code to solve these abnormal problems.

If you have worked for 2-3 years and want to pursue further studies in distributed architecture, the most important thing is to systematize your knowledge.

Here to share a Java programmer advanced systematic architecture knowledge learning mind map to share with you!

If you want to learn the above technologies, you can join the JAVA Advanced Architecture: there are Ali, Baidu, Review, architect Live Guide, Java programmers working in 1 Murray 5 to improve themselves, as well as architecture learning materials, jvm, handwritten springmvc, distributed, high availability, high performance, data structures, and springcloud,springboot access. Framework application and source code reading mybatis application and source code analysis spring source code analysis SpringMVC

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