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This article mainly explains "what are the skill requirements for a kind of software development position". Interested friends might as well take a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what are the skill requirements of a software development position?"

1. Object-oriented programming language

It doesn't matter whether it's Java,C# or C + +. It is rare to find a job post that does not require some knowledge of the object-oriented programming (OOP) language.

This is also the result of design.

There are several reasons why the OOP language is useful.

First of all, they are modular. For example, this means that when you see a problem with a given object, you know that the problem originates from a specific class (this is called abstraction and is one of the basic pillars of OOP). This can be helpful when debugging or adding new features to your code. Not only that, but encapsulating the code in an object ensures that each function can be performed while leaving the rest of the code to do its own work.

Second, one of the main principles of OOP languages is their tendency to inherit. Inheritance is the extension of class functionality to eliminate redundant code. In other words, you can reuse the code without having to write it multiple times. For example, you can create separate categories of cars, planes, and trains. For each category, you need to define its scope, fuel consumption and carrying capacity. However, you can convert individual classes (cars, planes, and trains) to derived classes instead of coding each class individually. These derived classes will belong to the base class (transportation), which will indicate the properties of each class (scope, fuel consumption, carrying capacity). In this way, part of the code can be reused. In addition, you can change individual properties of derived classes without overriding or affecting the base class to which they belong.

Finally, the OOP language is polymorphic (sometimes called overriding or overloading). Polymorphism is the ability of an object to take many forms. It is related to inheritance, because inheritance allows classes to inherit features from other classes. After inheritance, polymorphism uses inherited characteristics to perform different tasks. In other words, you can use polymorphism to perform a single action in many different ways.

So, which OOP language should you learn? The popular ones that employers are looking for are Category Java and C + +. Which one you learn depends on you. Once you have learned the concepts and usage of one language, you can easily choose another language by making some changes to the syntax. The language you choose may depend on your location and the language that is popular in the industry.

two。 Relational database-SQL

The world runs on data, and all software touches some kind of data. The database makes the software a dynamic, multifaceted application that can perform many tasks without having to retain an one-dimensional, disposable program with few functions. Therefore, it makes sense only if you understand how to use the data in the database as well as the database itself.

Depending on the task at hand, the company may choose to use a relational or non-relational database.

A relational database is a structured table that contains data that uses a specific schema that is determined before any data is entered. These specific data structures are particularly suitable for transaction data (for example, if you are building an e-commerce platform) and are an ideal solution for software with well-structured data. Examples of relational databases that may be encountered in the industry include PostgreSQL,MySQL,MS SQL Server and SQLite.

Non-relational databases store data in a semi-structured format. The data is stored in separate JSON files rather than strict, interrelated tables. This has drawbacks, including an increase in the amount of processing code that needs to be implemented. However, these types of databases are cheap and difficult to maintain. Examples of non-relational databases include MongoDB (probably the most popular database so far), DynamoDB,Elasticsearch, and Redis.

According to my research, more than half of the job analysts are looking for junior developers with experience in relational databases. Based on personal experience, I always recommend that you learn about relational databases first, because they have a special nature. Once a relational database is figured out, a non-relational database will be easy, if necessary.

3. REST API

API has changed the way software is developed and is now often part of the day-to-day development process of many companies.

API (Application programming Interface) is a way for companies to open their application functions to leverage data from third-party developers, business partners, and internal departments to create convenience and processes for day-to-day processes. API has been used to improve collaboration in the workplace, innovate business solutions, monetize money, and increase security for data and server operations. Some common uses of API include general login, third-party payment processing, Google maps and travel reservation comparison.

Although junior developers do not need to know how API is implemented (because each company is usually unique), it is often important to understand why and how to use API. API is a set of rules that define how computers and applications communicate. In other words, they are mediators or translators that are located between the application and the network server and operate between the two tiers.

As a junior developer, you may need to help senior developers build or implement API.

4. Agile / Scrum software development method

Agile and Scrum software development methods are two popular ways to develop software, and most companies subscribe to one of two (sometimes both) methods.

Agile software development methods focus on continuous iterations of development and testing in the software development life cycle. Development and testing are carried out at the same time and depend on stable feedback from all interested parties. Agile methods attach great importance to daily face-to-face communication among team members and encourage the gradual implementation of a simple software development process.

Instead, the Scrum software development approach focuses on generating deliverables in the shortest possible time. This approach is useful when you know that requirements will change throughout the life cycle of the project and are usually not even known at the beginning of the project. The Scrum meeting is divided into project Sprint, in which each "Sprint" focuses on preparing specific deliverables. At the end of each sprint, the software is delivered for consideration and feedback. The Scrum methodology focuses more on creating a self-organizing team atmosphere that is achieved through daily meetings. Finally, the Scrum approach is more open to innovative and experimental software development processes.

Although the choice of operation method depends on each company (usually on each department or team), it is not a bad idea to be familiar with the way each company works.

5. Cloud-based environment (AWS,Azure, etc.)

Today, few companies do not host parts of their systems on the cloud.

Cloud computing has revolutionized computing services, and now it has become the mainstream for developers to use one of the many cloud computing services (AWS,Azure,IBM Cloud,Google Cloud). Cloud computing brings many benefits to companies, including reduced infrastructure costs, enhanced security measures to protect data, and enhanced reliability, making disaster recovery a simple and low-cost process.

As a developer, you may encounter and use cloud computing services in the process of creating cloud native applications, testing and building software, storing and backing up data, analyzing datasets, and delivering software to customers.

6. Front-end technology (HTML,CSS,JavaScript, etc.)

9/10 of job advertisements require knowledge of some front-end technologies. Specifically, employers are looking for candidates with experience in HTML,CSS, original JavaScript and modern JavaScript frameworks (including Angular,React,Vue and Ember).

Whether you focus your search on strict front-end or back-end software development positions, a little front-end magic can solve the problem. No one in the history of development has ever said that he regrets learning a little HTML,CSS or JavaScript.

These three "languages" (since neither HTML nor CSS are programming languages, I would say easily) are easy to learn, and some quick tutorials are enough to give you the experience you need to handle all the small tasks. In short, it's better to have skills than to have skills, rather than drying buttons high up and out of a clue when senior developers need you to change the color of the button from red to blue.

7. Linux

Programmers and Linux work together like peanut butter and jelly, which is reflected in the prominent use of software development companies.

Linux has many advantages over Windows and iOS, which makes it an easy choice, including its open source, very stable (not vulnerable to malware and viruses), configurable, less hardware required, and completely free.

Because it is popular with the development community, junior developers should at least know about the environment so that they can get started.

At this point, I believe you have a deeper understanding of "what are the skill requirements of a software development position?" you might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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