Blockchain Developers: What do they do?

What is a blockchain developer and what is their average yearly salary?

You’ve probably heard something about the blockchain by now, right? A technology based on cryptography that was created in order to make Bitcoin truly safe and decentralized, it quickly got a life of its own, thanks to Bitcoin’s source code being made freely available from the start.

Now, the blockchain is a security technology based around decentralization and trust, and is able to host much more than just cryptocurrencies coinmarket, including apps, artworks, and even entire games! The best example is probably the Ethereum ecosystem, which was born around Ethereum and now hosts many apps, NFTs, startups, and multiple cryptocurrencies binance us (the tokens, released in ICOs).

So, who is in charge of developing all of those ecosystems and making sure that they are safe and running smoothly? That’s right, the blockchain developer.

The blockchain as a technology

Today, the blockchain has evolved so much that you can take advantage of it in many more ways than just by using crypto.

Decentralized apps (Dapps) give a new way to create, publish and finance apps. Instead of having to pay a fee to be hosted in Google Apps or the Apple Store, you can host an app inside the blockchain, and it will be hosted within the app users’ copies of the blockchain, as well as the copies of other users of the blockchain.

Smart contracts also bring a new and agile way of doing business. In usual business practices, a trust bond between two parties is formed by a contract that is binding according to the local laws. If a contract is broken, a legal battle may start to get compensation. All of this is very bureaucratic and involves large sums being spent on lawyers and court fees.

In the blockchain, a decentralized environment, that way of generating trust doesn’t exist, as it is not regulated or under authority of any government. That’s where smart contracts come in: they are contract apps that live in the blockchain and are programmed to trigger automatically when it detects that the conditions have been met.

Not to mention blockchain as a security technology, whose safety has been so well proven that banks are starting to use it within their own systems, among many other possible applications. You may also Know: Top Paying Tech Jobs

Joining the blockchain

Still, while all those possibilities can bring you many benefits, they aren’t exactly very easy to take advantage of.

For example, developing an app for a blockchain isn’t like developing an app for Android or iOS. You’re not going to be able to create an app for it using Java, Kotlin or Swift. Each blockchain has its own rules, its own programming language, API, and other technicalities. So you can’t just get any app developer to create those kinds of apps, you need someone that specializes in it. That is, a blockchain developer.

This is also true if you are looking into developing your own blockchain. While you can have many types of programmers involved in that, you also need people that are experienced with creating and using blockchains and also know about cryptography in order to define how the blockchain will work, that is, what will validate each block, how the blocks will be structured, hashing algorithms to be used, blockchain API, among many other possible features that the blockchain needs to have.

Demand and salary

If you’re interested in the field but doesn’t know much about career prospects, don’t worry: it isn’t hard to get 100 thousand or more dollars per year even at an entry-level position.

Thanks to its flexibility and security, as well as for cryptocurrency prices, trending and the technology being pushed by tech personalities such as Elon Musk, the blockchain has been gaining traction throughout the world and new applications and derivative functions are being developed each day. Hence, the demand for professionals that know the ins and outs of the technology is also high, as knowledge about this new technology is critical to make it work correctly.

And the demand is bound to grow a lot for the next few years.

The Hacker’s Manifesto

The Mentor & the Hacker’s Manifesto.

Key background:

In hacking culture, The Hacker’s Manifesto holds a significant place. It overnight changed the world’s perspective of Hackers and heavily impacted media. One of the first articles that kept a philosophical base of hacking culture. 

The Hacker’s Manifesto, also called The conscience of a Hacker, is a small essay written by a computer security hacker, known by his pseudonym The Mentor. The Mentor was later identified to be Loyd Blankenship. The Mentor belonged to the group of hackers, Legion of Doom. This group was considered one of the most potent and proficient hacking groups. Read more articles: 3D Printing Food

The Mentor was among the successors of the groups. He also served as a member of Ecstasy Elite. The Mentor had been active since the 1970s, not only as a hacker, but as a writer of the most popular writing within the hacker’s world.

Publication:

The Hacker’s Manifesto was published on 8th January 1986. The essay was written soon after the arrest of The Mentor. The essay was first published in the ezine Phrack. Phrack is an ezine or online magazine which is specially dedicated to hackers. Phrack is considered one of the most eminent and running ezine.

Since the publication of The Conscience of a Hacker in Phrack, it gained popularity. Today, people can access it on various other websites. It is also found on T-shirts and in films. 

Inspiration for writing:

On being questioned about the inspiration for writing his infamous essay, The Hacker’s Manifesto, the author stated that he had read The Moon is a Harsh Mistress and was impressed by the revolutionary ideas it exuded.

At another public event, The Mentor talked about his motivation to write after his arrest. He said it built ’empathy’ for his fellow friends who have to encounter similar circumstances. Further, after the release of WarGames, the author felt a growing need to change the hackers’ public perception. Hence, the author chose to write The Hacker’s Manifesto. 

Purpose of the essay:

The essay served some essential purposes for the hacking community. The essay aimed to perform the following purposes:

  • Guideline for hacking community:

The Conscience of a Hacker conveys some essential guidelines to the hacking community, especially beginners and those new to the fields. He has schooled his hacking comrades and explained their curiosity and thirst for knowledge.  

  • The ethical basis for hacking:

It also provides an ethical base for hacking and promotes ethical hacking. Such that may assist in the development of new technologies, or discovering beneficial information. 

  • Positive usage of technology:

The essay also claims that the usage of the technology should not exploit or harm others. Instead, it should widen our perspectives and keep the world free. 

Adaptations:

The Hacker’s Manifesto has gained acclaim since its first publication. It is considered a bedrock for the Hacker’s community and describes the philosophies of a Hacker. It grabbed the public eyeballs after its adaptation in various books and movies. 

Initially, it caught media attention in Hackers, a 1995 movie where it was quoted many times. 

The poster of The Hacker’s Manifesto also features in The Social Network, a 2010 movie. The poster was displayed in Mark Zuckerberg’s Harvard room. 

The Mentor has also read his essay at H2K2, a conference held for Hackers in 2002, where he offered more insight into his essay. 

The Conscience of a Hacker also features in the Autobiography of Edward Snowden called Permanent Record

Dart Development: dual programming language

Dart’s Productivity Hacks – a perky programming language

For those who don’t know it well, Dart doesn’t seem like much. It may even look a bit scary. It is strongly typed, requires semicolons at the end of every line, requires manual import of local files, and some other stuff, features that modern programmers tend to avoid in order to program faster. It feels a bit like Java, with a dash of C++, while also having some Python features.

However, all of that contributes to Dart’s strong point: its dual nature. Dart is both an interpreted language and a compiled language. Which one you use will depend on your objectives. Although people commonly use the Dart Virtual Machine for debugging and compiling the code for release.

Like you can see with flutter coding language Cyprus, Dart’s dual nature is what gives its strength. You can run it anywhere and test it anywhere. And even though it is strongly typed, it is also flexible, meaning you can code stuff quickly. And with flutter language used, you can even make UIs extremely quickly. And this programming speed exists thanks to three main features.

Streamlined code 

Yes, Dart feels like Java. However, it took away most of the clutter. In Java you have those huge chains of namespaces and classes and static members which you have gone through to use classes or functions.

Want to print something to the console? You have to use “System.out.println()”. Although it is pretty self-explanatory as to what it does, it is unnecessarily big for a print function. We all find out what “printing” does in basic programming classes, no need to remind it to us. So in Dart, it is just “print()”.

It also has some of the “quick constructors” Python has for different kinds of lists, such as “[]” for List objects and “{}” for dictionaries. You can also use the “=>” notation for one-line functions and anonymous functions, like this: (int i) => i*i; . Simple, no? The “return” is implicit, making it small like Python lambdas.

There is also built-in syntax to easily create getters and setters, you can easily define a member variable as private just by prepending an underscore, and many other simple and intuitive syntax rules like those.

Hot reload

Dart’s dual nature gives its greatest benefits during testing and debugging applications. The Dart Virtual Machine comes with a built-in way to do a “hot reload”, that is, update the application’s code while it is running.

This means that you can tweak most aspects of your application very easily. You just update the code, do a hot reload, and see how it turned out. Each hot reload takes just about a second to give you the result.

This is especially useful in Flutter, Google’s Dart-based multi-platform UI framework. Flutter’s usual compilation can take about a minute to complete when working with Android,dart game development for example. So tweaking the UI would become a bit tricky. It would take too long to do just that. But with hot reload, it becomes much quicker.

Dart Observatory

The most helpful tool though, is definitely the Dart Observatory. If you have programmed in C++ for some time, you know how debugging C++ programs can be a bit tricky. Sure, there is GCC’s debugger (GDB), for example, which allows you to examine a code line for line, and most IDEs have support for it. But, if you want detailed data about the program’s memory, and CPU usage in specific functions, you are going to need some specialized library for it, such as Valgrind, and do a lot of work.

The Dart Observatory, on the other hand, tracks all of that information while the program is running inside the Dart Virtual Machine, and displays it all to you in an interactive way in your computer’s internet browser. It is both a profiler, meaning it tracks all of the data regarding the application’s performance, and a debugger, allowing you to insert breakpoints while the program is running, as well as just pause the app anytime you need to find out what is going on.

Dart may not look like much from the outside, but it is state-of-the-art programming at its finest. It features many quality-of-life improvements over other contemporary programming languages and can make your life much easier.