React.js Development Services

Relevant has been providing React.js development services and consulting since the technology appeared. We delivered 200+ projects to clients from 25 countries and are ready for yours. Hire our React.js development company now.

Client testimonials

React.js development services we provide

React.js development from scratch

If you are launching a new product, we can build a React.js project from scratch for you.

Dedicated React.js development team

Hire dedicated React.js developers to fit your needs at scale. We are able to provide a senior React.js developer in a week.

Migration to React

Our experts will perform high-quality
migration to React from any other
frontend framework.

React.js project rescue

We will refactor the code poorly written
by another React.js development company
to meet industry standards.

How we differ

Agile approach

Scale your team up and down, depending on your needs. You can add part-time specialists when and if required.

Dedicated project manager

Work through our project manager to build better relationships with our team and manage administrative tasks.

Average staffing time is two weeks

We understand that you need to start as soon as possible and have an efficient staffing process.

8.9/10 client satisfaction score

Our clients highlight our ability to build great personal relationships with them, except for the excellent code quality.

80% of the company – senior engineers

We invest in attracting the best talent from the market. We hire only strong middle and senior engineers and no juniors.

78% employee retention rate

We are interested in long-term relationships. Our employees stay with our clients and us for years.

React.js development cases


Developing a SaaS platform that assists UK homebuyers

View case


Gamifying customer support with a Zendesk app

The Netherlands
View case


Visualizing air quality sensor data in a web dashboard

View case

Engagement models

Decide which model best suits your project


At Relevant, you can have a skilled team of React.js developers along with a project manager who can reduce your overall burden.

We are always open to testing our developers’ skills and expertise. The most common ways of checking coding standards are taking interviews over Skype calls or giving test technical tasks.

SkillValue recognized Ukrainian software engineers among the world’s best, with an average score index of 91.26%. Besides, software development teams from Ukraine scored an average of 88.7% across all HackerRank challenges. This makes Ukraine a great place to outsource React.js development services and find React.js development company.

Although rates vary with respect to developer’s experience, at Relevant, you can hire React.js developers starting from $30 per hour. Our React.js developers are ready for hire.

Yes, we do.  We perfectly understand your urge to keep your valuable business information safe. We will sign a NDA document and provide you with other key documents in software development outsourcing.

Yes. We may provide you with TypeScript development services along with React.js if needed. 

React.js is mostly use for React web development, but you can build mobile applications with React Native. We provide React Native development services too.

Even though React.js is mostly used to develop small and medium-scale apps, Facebook, Instagram, and Netflix are using React.js in their core. So, it is possible to develop large applications with React.js.

Yes. We can provide you with a senior full-stack developer with great experience in React.js and Node.js.

We assure full ownership to our customers. Copyright, NDA, Intellectual Property, and Source code of your project will be in your authority.

As described above, we use two engagement models:

  • Product Development 
  • Dedicated team

You can find more information on our Pricing page.

Yes, we do provide React.js development consulting. Feel free to contact us for more information. You can also fully outsource React.js development services.

In general, it will take 3 weeks to 8 weeks to complete a web development project based on the scale, customization, integration, layout, and functionality you choose to include. But there is no fixed period for all project, since it depends solely on the project’s size and model.

You are rightful to do it with a notice period of 1 month.

We use Agile Scrum and Kanban when providing React.js development services.

We use Jira to track tasks and project development progress.