An RoR Developer is responsible for developing back-end components, connecting the application with other web services, and more tasks.
Hence, it is essential to know whether the person is capable of doing the job. Since the goal of the framework is to reduce the time and effort required to build a web application, there is always a burden on the developer and their knowledge of the structure.
The best way you can hire Ruby on Rails experts is by asking questions based on the framework.
Given below are some questions you may want to ask in the interview and the answers that show the true worth of an RoR Developer.
The Comprehensive List of Top-10 Ruby On Rails Questions
Learning a language and understanding what it does are two different contexts. A developer should be able to explain the strength and weaknesses of the language. Given below are some of the points you may expect from an RoR Developer.
2. What do you Know About Rack?
A Developer should not only be able to explain or describe the basic structure of RoR, but s/he should also be able to develop an application through it. As Rack is the underlying technology behind all of the web frameworks, one must surely know about it. You may also ask them to define Rack.
Here are some answers that you can expect.
3. What do You Think About Ruby Gems?
An RoR Developer should know why Ruby Gems are useful. So, by asking this question, you can understand how they view this function. You should not only ask for their views but instead, ask them how it works and if they can explain the basic structure of it.
Given are some points an RoR Developer may say for this topic.
4. How Can You Make an Application Secure?
An RoR Developer must know how to make an application secure as it is a crucial factor. They should understand the importance of security. Here are some questions you may ask for security.
SQL injection targets databases of websites directly, whereas XSS injection redirects the end-user to a phishing page to easily access all data.
HTTPS uses TLS to encrypt HTTP requests and hence is more secure.
The best way of storing data is by salting and hashing.
5.Tell me About the MVC Architecture.
Since ROR has Model View Controller architecture, a Developer needs to explain it.
You can expect the following answer.
6. What do You Know About Active Records?
A good Developer will quickly understand the model part of an application and write the least possible codes in Active Record models. Here are some points the developers may talk about.
7. What Tasks Should You Pay Attention to While Writing the Rails Application?
You cannot give a job to a person who doesn’t know where the attention is needed while writing an application. You can also ask them to write one for you. Here are some essential points that you may expect from an RoR Developer.
8. Explain the Purpose a Few Directories
As the interviewee has a good knowledge of the language, try to ask some questions from the inside of the language. Explained here are two directories and their purpose.
9. What is the Role of Garbage in RoR?
A ROR developer should know about the importance and the function of garbage. You might expect the following from the interviewee.
10. Can You Make or Rework a Program?
In the end, you can ask developers to make a specific program. It can help you understand if they can provide practical results. Check the following, though.
You can also hand a program to the developers and ask them to improve the program.
Conclusion
Whether you want to hire a ROR developer, or need to hire Python experts, you must ask the right questions. Moreover, having a hub where you can find a lot of developers will help you acquire the RoR Developer for your need.
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