What are the three types of talents in blockchain industry
At the tokensky blockchain Conference on March 14-15, Zheng Xiaojun, director general of wbo, mentioned that the wbo licensing authority will issue three types of licenses: digital asset operation license (for ordinary digital asset companies), digital asset trading license (for digital currency exchanges, etc.) and ICO license (for ICO only projects, companies, etc.)
it is understood that the world blockchain organization is a non-governmental organization registered by the United Nations Economic and social affairs agency. Its purpose is to become a major international intergovernmental organization in the blockchain instry and provide another method and means to solve the financial problems between countries and regions by promoting the cooperation of the blockchain world
at present, wbo has more than 400 members and institutions, including nine offices including the licensing authority, to operate blockchain policy research, legislative promotion, standard formulation, evaluation and certification, conferences and exhibitions, training and ecation and other activities
the wbo with endorsement from international organizations will issue licenses related to digital cryptocurrency and blockchain, which may provide clearer guidance on supervision and practice at the national level, and bridge the cooperation between countries
as a financial technology leader, the United States discussed cryptocurrency, ICO and whether the existing regulatory framework is sufficient to protect investors at the recent congressional cryptocurrency regulatory hearing. Many of them agreed that the regulatory authorities should clarify the legal status of encrypted assets, and ensure that the relevant processes comply with the law while helping entrepreneurs to innovate
No matter what the result is, the measures taken by these important organizations and governments show that they will not sit back and watch the currency circle and chain circle go disorderly
it is worth noting that on March 11, the blockchain instry alliance of China Hi Tech Instrialization Research Association also announced that it has officially joined the ranks of wbo sponsors, and Zhu Tao, chairman of the alliance, is also the deputy director general of the world blockchain organization. With the issuance of internationally recognized licenses, will China's policies be relaxed
According to the data of boss direct employment research institute, the Internet instry has once again become the instry with the most shortage of talents, among which online ecation, Internet Finance and enterprise services have the highest degree of talent scarcity
transportation, mineral geology, real estate development, radio, film and traditional banking are the top five instries with relatively saturated talents, and the demand for newly opened jobs is less than the number of job seekers
as the three giants of traditional high wage instries, Internet, finance and professional services are firmly in the top three, and the average monthly salary is more than 1000 yuan higher than that of other instries. Specific to the job demand, high-tech jobs are in serious shortage of talents, and the salary also presents a crushing advantage. In 2018, the average salary of Technology / R & D and proct talents in China reached 14400 yuan and 13900 yuan respectively, with an average salary increase of more than 5%
1. Blockchain links
as the name suggests, blockchain is a chain composed of blocks. Each block is divided into block head and block body (including transaction data). The block head includes the prevhash value (also known as hash value) of the previous block used to realize the block link and the random number (nonce) used to calculate the mining difficulty. The hash value of the previous block is actually the hash value of the head of the previous block, and the random number calculation rule determines which miner can obtain the right to record the block
2. Consensus mechanism
blockchain is accompanied by the birth of bitcoin, which is the basic technology architecture of bitcoin. Blockchain can be understood as an Internet-based decentralized accounting system. A decentralized digital currency system like bitcoin requires the consistency of accounting of honest nodes without a central node, which needs blockchain to complete. Therefore, the core of blockchain technology is a consensus mechanism to reach a consensus on the legitimacy of transactions between indivials without mutual trust without central control
there are four main types of consensus mechanisms in blockchain: pow, POS, dpos and distributed consistency algorithm
3. Unlocking script
script is an important technology to realize automatic verification and contract execution on blockchain. Every output of every transaction does not point to an address in the strict sense, but to a script. A script is like a set of rules that constrain how the receiver can spend the asset locked on the output
the validation of transactions also depends on scripts. At present, it depends on two kinds of scripts: Lock script and unlock script. Locking script is a condition added to the output transaction, which is realized by a script language and located in the output of the transaction. The unlocking script corresponds to the locking script. Only when the conditions required by the locking script are met can the assets corresponding to the script be spent, which is located in the input of the transaction. Many flexible conditions can be expressed by script language. Interpretation script is similar to the "virtual machine" in our programming field, which runs in every node of the blockchain network in a distributed way
4. Transaction rules
blockchain transaction is not only the basic unit of a block, but also the actual effective content recorded by the blockchain. A blockchain transaction can be a transfer, or the deployment of smart contracts and other transactions
as far as bitcoin is concerned, a transaction refers to a single payment transfer. The transaction rules are as follows:
1) the input and output of the transaction cannot be empty
2) for each input of a transaction, if its corresponding utxo output can be found in the current transaction pool, the transaction will be rejected. Because the current transaction pool is the transaction not recorded in the blockchain, and each input of the transaction should come from the confirmed utxo. If it is found in the current trading pool, it is Shuanghua trading
3) for each input in a transaction, the corresponding output must be utxo
4) each input unlocking script must verify the compliance of the transaction together with the corresponding output locking script
5. Transaction priority
the priority of blockchain transaction is determined by the blockchain protocol rules. For bitcoin, the priority of a transaction to be included in a block is determined by the time when the transaction is broadcast to the network and the amount of the transaction. With the increase of transaction broadcast time on the network and the increase of transaction chain age, the priority of transaction will be improved and eventually be included by the block. For Ethereum, the priority of the transaction is also related to the transaction fee that the publisher is willing to pay. The higher the transaction fee that the publisher is willing to pay, the higher the priority that the transaction is included in the block
6. Merkle proof
the original application of Merkle proof is bitcoin, which was described and created by Satoshi Nakamoto in 2009. Bitcoin blockchain uses Merkle proof to store transactions in each block. So that the transaction can not be tampered with, but also easy to verify whether the transaction is included in a specific block
7. RLP
RLP (recursive length prefix) is one of the main encoding methods of object serialization in Ethereum. Its purpose is to encode the sequence of arbitrary nested binary data.
the demand for talents in Internet / game / software instry is large
according to the data released by liepin.com, in 2019, the demand for talents in Internet / game / software instry accounts for more than 77%, far ahead of other instries, followed by the financial instry, accounting for 6.5%
-- for more data, please refer to the analysis report on market prospect and investment strategic planning of China's blockchain instry issued by foresight Instry Research Institute
generally speaking, blockchain companies need more technical talents, which is more concive to the development of the company. In addition, the long-term operation of the company is also a very important thing
from a small perspective, blockchain is still unfamiliar to the public, and more often, it needs more publicity and promotion.
What's the most expensive in the 21st century? It could be blockchain talent
Zhang Yan (pseudonym), who graated from a 211 university in Shanghai with a master's degree, began his internship in a blockchain company this summer, mainly responsible for the collection of instry information. During the internship, his salary is 8000 yuan, and after becoming a regular, his monthly salary will reach 22000 yuan
Zhang Yan's starting salary is much higher than that of fresh graates' first employment. According to the statistics of Shanghai human resources and Social Security Bureau, the average monthly salary of college graates with bachelor's degree is 4793 yuan, and that of graates with master's degree or above is 8001 yuan
according to the analysis of instry insiders, at present, there is a high shortage of talents in the instry, few talents meet the recruitment requirements, and the imbalance between supply and demand leads to a high premium of talents. It is expected that in two to three years, when the blockchain technology is applied and fully blossomed, the relationship between supply and demand in the market will enter a stable stage
how expensive are blockchain talents
"our recruitment has not been smooth. We may have 5-8 people in a quarter, which can only reach 20% of our expectation." Deng Xu, the founder of Yunxiang blockchain, has been hoping to rapidly expand the team to a team of 100 technicians, but he is struggling to find suitable talents
recruitment information of a company
"my ideal blockchain talents mainly have two standards, one is computer foundation, the other is algorithm foundation." Deng Xu said
according to Yan Li, founder of computing power think tank, there are three types of blockchain talents:
first, in terms of content research, most of these talents were originally engaged in financial information, traditional research and other jobs, and after one to two months of training, they can start their jobs
the second is proct technology development, which requires mature computer technology talents, such as research on underlying data development, data storage and so on. They need to redistribute their work areas in the blockchain scenario, and they can adapt to the post demand after two to three months
the third is the refiner of proct requirements, which is the most difficult person to find. They need to understand the business logic of blockchain, dig out pain points, and understand technology, so as to connect the customer's needs with the ability of technical developers
Shang Yang, an analyst of yiou think tank, also pointed out to Zhongxin Jingwei that the essence of blockchain is a distributed encrypted database, and the core idea is decentralization. Blockchain is evolved from bitcoin. Before, there were almost no relevant courses in Colleges and universities, so today's practitioners of blockchain technology are mostly self-taught. Objectively, all those with computer professional background have the conditions to learn. But technology is not the key, the key is to find the appropriate application scenarios. Only in a certain scenario, the data distributed storage can be irreplaceable and bring significant benefits to the enterprise, can it be regarded as a good application scenario, so the application on the chain is still in the exploration stage
"there are too few application-oriented talents," Shang Yang said. The application and transformation of any new technology needs a process. At present, many technicians do not understand procts
According to Deng Xu, there are three main reasons for the shortage of talents in blockchain: on the one hand, the popularity of blockchain is fast, while the number of technicians is small, resulting in the imbalance between supply and demand; On the other hand, blockchain is actually a comprehensive technology, including computer language, algorithm, communication, cryptography and so on. At present, talents trained by colleges and universities generally have only one or two aspects of knowledge reserve. In addition, with the popularity of ICO last year, a large number of new blockchain companies were born, further aggravating the imbalance between supply and demand of blockchainwith the fire of blockchain concept, some colleges and universities began to offer courses, and training institutions also entered the market one after another. Yan Li suggests that top universities with science and engineering majors can continue to give full play to their advantages and cultivate talents for blockchain technology application; In terms of business, it still mainly relies on talents from traditional instries; Social organizations, research centers and other institutions can organize vocational training for talents in the blockchain instry, but good vocational training must last two to three months instead of two or three days of "quick" training
However, Deng Xu pointed out that at this stage, training can only supplement some middle and low-end technical talents for the instry, but it can not solve the problem of high-end talents. Shang Yang also pointed out that universities with relevant courses are also facing the problem of retaining teachers“ On the one hand, it's easy to be poached by enterprises. On the other hand, most people who really understand technology and application choose to open their own companies or speculate in money. ""blockchain technology is the closest technology to money, so many people can't concentrate on technology, and the technology is very complex and boring." Deng Xu said
content source observer network
1. Build a distributed ledger application based on DLT technology to realize the business requirements of customers on DLT. At present, the more famous one in this field is REBO. So what does DLT mean? Just look at what REBO is doing
2. Develop your own application on the existing public chain. At present, most companies are doing this. This category is also characterized by low threshold, high business potential and low risk
3. Companies develop their own public chains, which have the greatest potential in the future, but also have the highest risks and technical difficulties
4. Blockchain ecological infrastructure. For example, mobile wallet, hardware cold wallet, trading platform, blockchain content platform and so on are the blockchain instries with the highest commercial profits at present. Relatively speaking, the threshold is low and the risk is low, but there are many competitors
if we start from technology, what languages and knowledge do we need to learn
for the first class, go language is necessary, because DLT is mainly based on go language, and it also needs to master certain application development ability, because it must be a piece of software rather than a bunch of command-line source programs delivered to customers. For the second category, the mainstream of smart contract is the solidness language of Ethereum smart contract, so if you want to enter the second category of enterprises, you need to start with Ethereum. The third type of public chain development, the mainstream is C + + and go, but there are also many famous projects are implemented in trust, such as: Facebook's Libra, fire coin's nervos and so on. In fact, the fourth category has little to do with blockchain technology, because development such as trading platform does not need blockchain technology
in addition to the above technical hard power, blockchain companies prefer "slash youth", that is, talents who master multi field knowledge at the same time, which can be divided into three categories: finance and blockchain, content operation and blockchain, community operation and blockchain. Among them, the third kind of talents is the rarest, because most technical talents are not good at communication and exchange. However, e to its distributed characteristics, blockchain especially needs the joint efforts of the community to create and maintain a chain
in the end, many people mistakenly think that blockchain is a brand new instry, and that blockchain is totally different from traditional fields. This is actually a big mistake. From what has been written above, you can also find that in the end, blockchain still needs to solve the actual needs in reality. The only difference is that the tools to solve the needs have changed, so don't think that only knowing blockchain can kill all sides, It is very important to have the basic knowledge of the requirement field
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.
1. Distrust. Through the distributed system of the blockchain, the trust between people is transferred to the trust in the machine, and the machine will not cheat people - it has no feelings and only operates in its own way. This greatly reces the number of central links generated by trust. In some instries, intermediaries can even be removed. Supply and demand trust is entirely based on this magical machine. So people who use it everyday need not worry about the information they see is not true, or the praise is brushed out, etc.
2. Decentralization. At present, if you want to transfer the equity you hold, you have to go through a lot of proceres and find different departments to do it well. It's a waste of time and money. If blockchain technology is combined with electronic contract, this problem can be solved. Shareholders can trade their shares just like buying and selling T + 0 shares, and they are also protected by law. What about cross chain technology Cross chain: for example, you directly use your shares to buy other people's digital rights, recing the steps of exchanging legal currency.) How convenient that would be
3. Highly transparent. Now the business's biggest fear is information opacity. The application of blockchain technology can solve this problem. As long as the public digital assets are set up, everyone can view them. If necessary, the number of assets held by the owner can even be displayed, and some shady transactions can be avoided
4. Anonymization. We often do "streaking" on the Internet carelessly. Our information is sold at a price in some bad companies. We check all the system records of a person for several hundred yuan. We can receive some sales calls from time to time in our daily life, and most of the fraud calls are successful only after we know your information. In the blockchain, we only display one address for transactions, which can effectively protect our own information and rece the possibility of information being sold publicly
for the commodities bought and sold, it is more reliable and safer to know clearly where the commodities you eat and use come from through the blockchain technology and certificate tracing;