Writing in the front
As information on the epidemic continues to flood the Internet, spring recruitment will obviously have an impact this year. Many companies, such as Tencent and Bytedance, have made some adjustments to ensure the smooth operation of spring recruitment and improve the efficiency of recruitment. First, more interviews are conducted online, and some even send offers directly online. Secondly, the resume screening process is more strict, with the shortest time to match accurate talent.
It seems that spring recruitment is not easy, but there is no need to be too anxious. It is a little unexpected to see a message on Zhihu that Internet companies demand nearly 10,000 architects every month. Wouldn’t it be more of a job search season? As long as the state of mind, adjust the strategy, prepared attentively, can seize the opportunity. So what exactly do technical people, especially Java people, need to know to pass the filter? Here are a few popular techniques:
1. JAVA concurrent programming
For a Java programmer, mastering concurrent programming is one of the important criteria to judge whether he is good or not. Because concurrent programming is the most obscure knowledge in Java language, it involves operating system, memory, CPU, programming language and other basic abilities, but also tests the internal skills of a programmer.
2. Java VIRTUAL Machine
Knowing how the Java virtual machine works can greatly improve the efficiency of everyday programming and make it easier to fix common bugs. At the same time, this is one of the important components of Java technology, is an essential knowledge to achieve technological advancement.
3, Nginx
Nginx is popular because it is a panacea that can be found in any situation where there is a performance requirement. It can easily implement high-throughput Web services with millions of concurrent connections. At the same time, third-party modules such as OpenResty and Tengine have further developed a new ecosystem, making the application of Nginx further extend to the application firewall, CDN and other fields.
4. Spring Buckets
There is no doubt that Spring has become the de facto industry standard for Java backend development. Countless companies have chosen Spring as the basic development framework, and most Java backend programmers come into contact with Spring in their daily work. Therefore, how to use Spring well? It becomes one of the required courses for Java programmers. At the same time, the emergence of Spring Boot and Spring Cloud can help engineers build systems quickly based on Spring and various infrastructures. It can be said that the birth of Spring Boot and Spring Cloud once again liberates everyone’s productivity. Therefore, Spring Boot and Spring Cloud have become integral parts of the Spring ecosystem. To be a qualified Java backend engineer, you must have a solid grasp of Spring Framework, Spring Boot, and SpringCloud.
5, Kafka
Kafka is a distributed high-performance messaging engine developed and opened source by LinkedIn. More and more companies are using Kafka in their own systems. It can be said that Kafka is the first choice of data pipeline technology in the era of big data.
6, Redis
Redis is the most widely used cache in the technology architecture of the Internet today. Support complex data structures, support persistence, support primary/secondary clusters, support high availability, support large value stores… Redis is also one of the most popular questions to be asked in technical interviews for middle and senior back-end engineers. Especially those excellent and highly competitive large Internet companies (such as Twitter, Sina Weibo, Ali Cloud, Tencent Cloud, Taobao, Zhihu, etc.) usually require interviewees not only to master the basic use of Redis, but also to have a deep understanding of the details and principles of the internal implementation of Redis. It is no exaggeration to say that if you can understand all the knowledge points of Redis, your half foot has already stepped into the technology research and development department of the big company you want.
I believe we are familiar with these technologies, are in recent years into the big factory necessary hard skills. Familiarize yourself with these hard skills and you won’t be afraid to get a high salary offer in 2020. What if I have no study materials? Rest assured, LZ has prepared books, documentation and video learning materials for you on these hard skills. Just forward and follow, and then reply [666] to get the free way.
