It focuses on asynchronous programming and data streams and uses more advanced programming concepts. Design patterns provide established solutions to common design Line code problems which can improve the efficiency and readability of your code. They help in creating reusable components and can significantly impact the maintainability of your applications. The elephant in the room is machine learning and AI, which, in 2024, threatens to make software developers obsolete, together with this whole article. If you want to get a job at those companies, you should learn at least the basics of blockchain besides your backend knowledge. The best way to learn this is to get one of your backend services, such as a simple REST API, and do the complete CI/CV setup, including automated testing.
Backend Developer (Arizona on-site)
To ensure code maintainability, I adhere to principles like SOLID and KISS. Writing clear documentation, using meaningful variable names, and implementing modular patterns all contribute to making my codebase easy to navigate and understand. To qualify for the Middle Backend Developer (Node.js) position, you should possess at least 2 years of commercial experience in Node.js. Familiarity with SQL and NoSQL databases, some experience with frameworks like Express.js or NestJS, and knowledge of TypeScript are essential. You should also be comfortable working in English at a B2 level.
3.3 Reactive Programming
Even if AI is pretty good at writing code, it is pretty bad at understanding why a particular piece of code is the way it is. And even so, coding is only a tiny fraction of a developer’s job. Everyone was talking about how the future of decentralized applications and traditional databases is on the verge of extinction. Getting a Cloud Certification is worth it if you have the time and resources. If not, I recommend you learn how to actually deploy services in one of those providers. For starters, Continuous Integration means automating the integration of your code into the repository.
1.2 Microservices vs. Monolith
- To strengthen our development team, we are looking for a Middle Strong Node.js Developer to help us create complex backend solutions for social media-related projects.
- Using ORMs you write OOP code, but under the hood they handle all the complexity and generate SQL queries.
- If big companies like this get attacked, you should also worry about this one.
- Debugging in Node.js can be approached by utilizing tools such as the built-in debugger, console logging, or using external libraries like ‘debug’.
- For that, you have to be able to see what’s happening inside it and have some kind of system that warns you when things are not going well.
- You will probably work with APIs more than anything else in your stack.
In the end, I got away with it by bugging my Senior Developer. Web Security is complex, but there is no need to reinvent the wheel. Most common attacks are documented and fixed in the libraries we use. Let’s start with one of the most basic Security protection you need to know, DDoS. Regarding HTTPs, you just need to know that it encrypts both the body and the headers of the request, which can only be decrypted if you have access to the HTTPs certificates.
- Regarding HTTPs, you just need to know that it encrypts both the body and the headers of the request, which can only be decrypted if you have access to the HTTPs certificates.
- You can also build backend applications using Python, Ruby, Java, Go, Rust, C#, and many other languages.
- With the rise of mobile devices, developers realized that smaller screens mean less data required to show to the user or differently structured data.
- To add new records to the database, you need to satisfy this schema.
- Monoliths’ lack of flexibility has become even more annoying as teams and codebases grow.
Regarding how much SQL you should know, you should have at least basic knowledge of performing Select Queries, Basic Table Definition, Column types, and Inner/Right/Left Joins. This is why it is the leading technology for data storage in many companies. Most business data is structured and can be easily modeled into SQL.
- Serverless means the Cloud provider manages infrastructure.
- When writing functional code, we want to use as few variables as possible.
- Looking back, like many other developers, I overestimated blockchain’s impact on backend technologies.
- You validate the token in the backend by calling the Identity Tenant Again and decoding it to obtain information about the user and their permissions.
- Remember, REST APIs are built around resources, not queries.
- In this role, you will work on projects primarily focused on developing MVPs for startups in diverse sectors, including FinTech, SportsTech, and MedTech.
They all kind of copy each other, so it will be easy to learn another one, for example, AWS. If you switch companies, the concepts are more or less the same. First, it’s been designed for a huge scale that most small and medium-sized companies don’t have. You must start thinking about caching strategies, logging, horizontal scaling… etc. I would say the topic of distributed systems is even beyond Senior Backend Developers into the realm of Staff or Principal Engineers.
You will find APIs in web applications, operating systems, database systems, computer hardware, or software libraries. Screening call interviews might include low level implementation questions like what does the “$in” operator do in Mongo. The idealists will say that a program like Lisp(functional programming) is much better than, for example, Java(OOP). The reality is OPP, even if not perfect, is still widely used. It is a style of programming, a way to think and structure code. Each paradigm has its principles and concepts, as well as disadvantages and advantages.
Using ORMs you write OOP code, but under the hood they handle all the complexity and generate SQL queries. Think about it like this, if SQL and OOP would have a baby, it would be an ORM. This means you can predict the state of your application by knowing the inputs its functions will receive. Given that backend development is mostly about manipulating data, storing it, and sending it back to a client. Today, in the internet age, all that happens over the network. Middle Backend (Node.js) Developer job Given that backend development is so fragmented, it is more important than ever to master the Fundamentals first and then explore frameworks and libraries.