Composition of blockchain developers

1. Go is an open source programming language, which makes it easy to construct simple, reliable and efficient software. If you want to learn this programming language, you should first find a good tutorial. Brother Lian's go language + blockchain training has recently published a new set of go language tutorial, and the teacher's speaking is very good

with the global hot discussion of the concept of "blockchain", the application of blockchain technology has been quietly added to the daily life scenes such as finance, logistics, credit reference, manufacturing and retail. Some experts have shown that the future blockchain will be closely related to people's lives, and the integration of blockchain technology and people's daily life is the general trend

the popularity of the blockchain market has triggered a large number of talents demand based on blockchain technical personnel, and the popularity of blockchain talents is rising at the speed of light. According to the "2018 blockchain high salary list" released by lagou.com, Tencent, Xiaomi, Suning, Jingdong and other domestic enterprise giants have released many high salary blockchain post demands, trying to explore blockchain related technologies and applications. It is also pointed out in the list that the demand for high salary jobs is mainly based on blockchain related technical jobs, among which Suning and Keda have been given the highest monthly salary of 100k

the huge market demand for technical talents will inevitably lead to the explosive emergence and growth of the whole blockchain training market. Most of the training modes can be divided into online training, traditional IT organization training, and offline short-term training camps, which mainly focus on high-end forms. However, in the process of the hot market evolution, there are also a variety of blockchain training chaos: lecturers' qualifications are watered down, and even the most basic names are not disclosed, the syllabus is opaque, and the teaching quality is shrinking, Unreasonable class arrangement and uneven training fees and so on

with the large-scale development of the whole blockchain training market, brother company ecation, together with Yin Cheng, a senior blockchain expert, and his Tsinghua Shuimu Weiming team, has set up a blockchain college. With its professional and powerful team of technical lecturers, detailed and comprehensive curriculum system, and a large number of authentic enterprise blockchain projects, it aims to deepen the blockchain teaching and training field, And train more professional technical talents for enterprises and society<

Yin Cheng, a senior blockchain technology expert, graated from Tsinghua University, is the dean of brother Lian blockchain college. He once served as Google Algorithm Engineer, the world's most valuable expert in the field of Microsoft blockchain, and the gold medal lecturer of Microsoft tech.ed conference. Proficient in C / C + +, python, go language, sicikit learn and tensorflow. With 15 years of programming experience and 5 years of teaching experience, senior software architect, Intel Software Technology expert, famous technology expert, with many years of working experience in the world's top it company Microsoft Google. He has many years of experience in software programming and lecturing, and has developed many procts in human-computer interaction, ecation, information security, advertising and blockchain system. He has deep experience in project management and R & D, has two AI invention patents, and has practical experience in developing e-money deployed to Microsoft Windows azure. Teaching explanation is in simple language, so that students can apply what they have learned
the first stage: blockchain instry and go programming for 5 weeks
the second stage: cryptography and consensus algorithm for 2 weeks
the third stage: Ethereum source code analysis and development for 3 weeks
the fourth stage: Super ledger and node.js for 2 weeks
the fifth stage: bitcoin & EOS for 4 weeks
the sixth stage: comprehensive actual combat of the project

2.

From the perspective of technology and architecture, I will tell you my understanding of blockchain in common language

what is blockchain? In a word, blockchain is a storage system. To be more specific, blockchain is a distributed storage system without an administrator and each node has all the data

What are the common storage systems like

first, how to ensure high availability

the common storage system usually uses "rendancy" to solve the problem of high availability. As shown in the figure above, if the data can be copied into several copies and rendant to multiple places, high availability can be guaranteed. The data in one place is hung, and there is data in other places. For example, the master-slave cluster of MySQL is the same principle, and the raid of disk is also the same principle

two points need to be emphasized in this place are: data rendancy often leads to consistency problems

1. For example, in the master-slave cluster of MySQL, there is actually a delay in reading and writing, which means there is a inconsistency in reading and writing in a short period of time. This is a side effect of data rendancy

The second point is that data rendancy often reces the efficiency of writing, because data synchronization also consumes resources. If you add two slave libraries, the write efficiency will be affected. The common storage system is to use rendancy to ensure the high availability of data

so the second question, ordinary storage system, can write more

the answer is yes, for example, take this graph as an example:

in fact, MySQL can do a master-slave synchronization of al masters, master-slave synchronization of al masters, two nodes can be written at the same time. If you want to do a multi room multi live data center, in fact, multi room multi live data synchronization. What we should emphasize here is that multi-point writing often leads to the consistency problem of writing conflicts. Take MySQL as an example, suppose that the attribute of a table is self incrementing ID, then the data in the database is 1234 now. If one of the nodes writes and inserts a piece of data, it may become 5, and then these 5 pieces of data are synchronized to another master node, Before synchronization, if another write node inserts a piece of data, a piece of data with self incrementing ID of 5 will be generated. Then, after the generation, synchronize to another node, and the synchronized data will conflict with the two local 5's after it arrives, which will lead to synchronization failure and write consistency conflict. This problem will occur in the case of multi-point writing

how to ensure consistency in multi-point writing

the reform "Swan class" gives you more technical work

3. How to set up the block concept, deceive people, let people continue to invest in you, buy your procts, currency
foreskin company welcomes you

4. The underlying development of blockchain can't be realized by Java
as the upper development, you just need to dock according to the given open source interface, and then use the language you are good at to develop what you need
now there are many blockchain system templates, you can go to see what development cases there are

5. It's rare to ask on the Internet, but 200000 words should be able to do a better one with many functions. It's rare to ask on the Internet, but 200000 words should be able to do a better one with few functions on the Internet, but 200000 words should be able to do a better one with many functions

6. Blockchain is a rapidly developing field. You have to have a Java foundation and be familiar with JavaScript. You can start with JavaScript and other frameworks, and hope to continue to develop and learn in this direction. With the popularity of ICO and mining trends, you don't hesitate to try blockchain development. Blockchain technology has attracted the attention of banks in various countries and regions. All in all, blockchain has a bright future
blockchain can solve many problems:
1. Ensure the security of bank deposits
e to fraud, banks will lose a huge amount of money every year. Blockchain has almost impeccable security, which can help them solve this problem. The bank customer who switches to blockchain wallet is replaced by a unique identification number. In addition, they use the private key to access the money. With the help of blockchain, only the account owner can process the funds - even the bank can't get them. These security measures ensure the security of bitcoin and other cryptocurrencies, so that banks can easily protect deposits
2. Cloud storage on blockchain can better resist hacker attacks
cloud storage companies use central servers to store data. For this reason, the risk of hackers stealing information increases - by accessing the server, hackers will automatically penetrate the entire network. Cloud storage on an apartment can protect data in a decentralized way, and the nodes are disconnected. Therefore, they are not vulnerable to attack, even hackers attack a node will not damage the entire network
3. Faster cargo transportation
in terms of logistics, it is necessary to organize cargo transportation correctly and quickly. The key is to be able to track goods throughout the supply chain. With the help of blockchain technology, this process will become more secure and transparent. In addition, decentralization of continuous records in the register would rece the role of people and the possibility of delays
4. Election cheating
election cheating, forged signatures, holding meetings without informing all members are the most common problems in corporate governance. All these problems can be solved by the integration of blockchain technology. For example, it can track and count votes, eliminating the possibility of forging someone's signature or voice. Instead, each voting participant will receive a unique key as identification.

7. 1. It's not too hard. Implementation technology is the second. It is mainly to understand the idea of centralized design. 2. You can go to the Internet to find the programming language that you are good at to implement blockchain.

8. Compared with 9 million Java developers and 18.5 million software developers in the world, blockchain developers are pale. In essence, blockchain is no more difficult than any other kind of development. Developers only need to know how to use encryption protocol. You know, a primary school in a remote area of Australia has set up a "blockchain school" project to enable students to deeply learn blockchain technology, and has created their own cryptocurrency. In addition, a group of fourth graders want to be their own ICO. Of course, it is not that no one has done so now. For example, there are many blockchain training institutions in Beijing that are known as "three days and two nights zero basic package society"... Of course, there are also those who really implement it. As a professional comprehensive information and research service platform in the vertical field of blockchain, the blockchain Application Research Institute established by fire coin integrates instry consulting, research, ecation and training services. It is hoped that in the future, more organizations will be able to guide and practice software developers who want to enter the blockchain field.