Steps to consider before hiring Ruby on Rails Developers

1. 1. Your project requirements and goals.
2. 2. Understanding specific skills needed for your project
3. 3. Determining the level of experience and expertise required
4. 4. Estimating your budget constraints
5. 5. Deciding on working arrangement – Full-Time, Part-Time or Freelance

How & Where to Find the Best Ruby on Rails Developers for Your Team?

Now that you are better prepared on your end, you can start your quest to find and hire Ruby on Rails developers to build your dedicated development team –

1. 1. Make use of job boards & dedicated platforms that host Ruby on Rails developer profiles.
2. 2. Attend Ruby on Rails community events & conferences
3. 3. Engage online with Ruby on Rails communities and discussion forums
4. 4. Leverage professional networks such as LinkedIn, Twitter & others.
5. 5. Consider availing IT staff augmentation services from a professional Ruby on Rails development firm

How to Assess Ruby on Rails Developer Technical Skills?

When assessing Ruby on Rails developer profiles, assess their technical expertise by ensuring they have -

1. 1. Proper understanding of Ruby on Rails syntax.
2. 2. Proficiency in writing, developing, and testing web apps in Ruby on Rails
3. 3. Ability to integrate backend components with front-end
4. 4. Expertise in assessing and improving existing Ruby applications
5. 5. Expertise in CSS3, HTML5 and JavaScript
6. 6. Proven experience in writing custom and automated test cases
7. 7. Knowledge of Mocking, MVC, RESTful
8. 8. Ability to integrate various databases and data sources in one system.

How to Assess Ruby on Rails Developers Soft Skills?

With technical skills, soft skills are equally important for finding the right Ruby on Rail dev profile who can communicate their inputs with the team, and understand client requirements and provide their inputs and consultation -

1. 1. Excellent written and verbal communication skills
2. 2. A reliable, curious, and proactive approach to ROR challenges
3. 3. Ability to interact, discuss and plan with teammates
4. 4. Ability to understand and respond to client concerns and feedback
5. 5. Important leadership skills like self-awareness, integrity, empathy, respect, and learning agility
6. 6. Proven experience in writing custom and automated test cases
7. Proper and Crisp Documentation

How to Assess Cultural Fit?

Cultural Fit refers to the cultural impact they can have on your organization. You would want to check the alignment of their beliefs, values, behaviour and approach to the task at hand. Some traits you would want to look for can include – working with a team, knowing how to handle conflicting views and being responsible and accountable for their own tasks. Here are some pointers to assess cultural fit level of a Ruby on Rail developer -

1. 1. Understand their work preferences and values.
2. 2. Evaluate if their working ethics and style aligns with your team’s culture.
3. 3. Assess how they approach challenges and conflicts.

Check Their References

Always check references. No matter how reputed, or how new the development firm is, chances are they must have at least 1-2 projects in their bag. They could be ongoing ones too, but talking to the other clients they are working with can help you get a better understanding of their work ethic, technical expertise and other such important factors.

1. 1. Ask the Ruby on Rails dev company for a list of references.
2. 2. Contact previous employers or colleagues.
3. 3. Inquire about their work ethic, reliability, and collaboration.

How to Make an Offer [Ruby on Rail Job Contract FREE Template]:

Once you have selected a couple of Ruby on Rails dev profiles you want to potentially onboard and hire, you should provide them with an initial offer. Here is a quick guide on how to make an offer to a Ruby on Rails developer you want to hire -

Here’s how you can check their references –

1. Ask the Ruby on Rails dev company for a list of references.

2. Contact previous employers or colleagues.

3. Inquire about their work ethic, reliability, and collaboration.

Ruby on Rails Job Contract Outline

Hire Ruby On Rails Developers - Interview Questions

What is the MVC Architecture? How does Ruby on Rails implement it?

MVC is an architecture pattern that stands for Model-View-Controller. The purpose of this architecture is to separate the application into three different components –

Discuss the key elements of the Ruby On Rails framework.

The CLR is one of the most important elements of the Ruby On Rails framework. With CLR, a Ruby On Rails developer can manage app memory, ensure code security, and integrate cross-languages. Another important aspect of the Ruby On Rails framework is the Framework Class Library, also known as FCL. It is a huge repository of reusable classes for applications across different languages.

Ruby on Rails implements MVC architecture by convention. Ruby classes behave like models that interact with the database. Views handle the presentation layer and Controllers are used for managing user inputs and application flow.

How does ActiveRecord work in Ruby on Rails?

ActiveRecord is a dedicated ORM(Object-Relational Mapping) layer for Rails. It is used for establishing interaction between Ruby objects and database. Models in Rails inherit from ActiveRecord for gaining methods like ‘load’, ‘save’, ‘find’ and ‘create’. This makes database interactions much easier and improves code readability.

Can you explain the difference between “has_many” and “has_one” associations in Rails?

Yes, “has_many” indicates one to many associations. For instance, a User ‘has_many’ Posts indicating a single user can have multiple posts. Whereas “has_one” is used for establishing one-to-one association. For instance, a User ‘has_one’ Profile. Which means each user has only one Profile associated with them.

How do you optimize Ruby on Rails performance?

There are many ways to optimize Ruby on Rails app performance. You could try caching strategies like page, action or fragments to reduce the overall number of database queries. Alternatively, you could try Database Indexing for retrieving frequently queried columns faster. Code refactoring and codebase optimization is also a continuous effort that could improve performance significantly.

What are the advantages of using RESTful routes in Rails?

RESTful routes are included in Ruby on Rails development best practices because it provides a standardized method of handling CRUD operations. It provides a highly scalable and comprehensive API design. Also, since it promotes convention over configuration, it makes the code more predictable and ready to use without much configuration.

How do you handle background processing in a Ruby on Rails application?

Background processing is important for handling tasks asynchronously. Doing so will lead to a responsive user experience. For Rails, I often leverage background job processing libraries like Delayed Job or Sidekiq. Using these gems allows me to offload time-consuming tasks to another queue, freeing up the main app’s thread for handling user interactions.

How does Rails handle database migrations?

Migrations are a poweful feature in Rails. It allows developers to incrementally evolve the database schema with the changes to the application code. Each migration has up and down methods for applying a rollback to the change. Migrations are generally written in Ruby using a DSL provided by ActiveRecord.

What is the importance of testing in Ruby on Rails. What testing frameworks are commonly used?

An abstract class refers to a class that cannot be Testing is important for any software built in any programming language. Ruby on Rails is no exception. We should test Ruby on Rails application for ensuring its stability and reliability. As the app scales and grows with more models, controllers and business logic, we need to conduct proper testing to find and fix bugs, and validate all parts of the app work as intended.