Rafael is a full-stack software engineer passionate about React and enthusiastic about learning new languages and technologies. He’s a big fan of clean architecture and loves implementing testing best practices.
5 min read
Trio focuses on finding the best React Developers to deliver impact within your team. All of our developers are proven domain experts in their field. Companies choose Trio to scale their teams faster with best-in-class talent.
Rafael
React Developer
7 Years of Experience
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Rafael is a full-stack software engineer passionate about React and enthusiastic about learning new languages and technologies. He’s a big fan of clean architecture and loves implementing testing best practices.
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Paulo
React Developer
6 Years of Experience
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Paulo is an experienced full-stack software engineer. He possesses expertise in developing applications using JavaScript and TypeScript and utilizing popular frameworks such as Node.js, Vue.js, React.js, and Next.js. Paulo is passionate about creating maintainable code that can be easily comprehended and modified by fellow developers, while also prioritizing efficient and scalable architecture.
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Lucas
React Developer
10 Years of Experience
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Lucas Bittencourt is a B.Sc. in Computer Science and an A.A.S. in Computer Programming with an overarching knowledge of software development and a deep understanding of the process of managing a software project from requirements to launch. He has experience working with both backend and frontend and dealing with the intricacies of deployment in Cloud environments such as AWS and GCP. Lucas is also a certified Project Manager with experience handling all phases of a project using an Agile methodology.
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Caio
React Developer
10 Years of Experience
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Caio is a highly experienced professional specialized in web systems development. He has a deep understanding of the field and has excelled as a Team Leader, successfully managing global projects.
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Trusted by great folks at
Why
How
What
All Trio React Developers are senior-level with proven experience.
to fill most roles, sometimes within 3 days.
of time saved sourcing and interviewing candidates.
Our engineers stay on teams for 2+ years on average
| Criteria | Trio | Internal Hiring | Marketplace | |
|---|---|---|---|---|
| 1 | Time to find a senior React developer | 0-3 weeks | 1-4 Months | 1-4 Months |
| 2 | Recruiting Fee | None | 15%-40% | None |
| 3 | Quality Guarantee | Yes | No | No |
| 4 | Failure Rate | Very Low | Low | Very High |
| 5 | Pre-Screened Candidates | Yes | No | No |
| 6 | Deep Technical Validation | Yes | No | No |
| 7 | Termination Costs | None | Very high | None |
A Trio Partner Experience Manager will work closely with you to understand your technical needs and gather detailed information about your current team and
Once our team has identified strong candidates that fit your team based on the details we gathered, we’ll present a list of senior ReactJS developer profiles for your project.
Trio developer profiles are extremely detailed and transparent in order to save you time evaluating candidates. You’ll still be able to screen candidates before hiring if you wish.
As soon you review and sign off on a senior React developer, our team will work with you to onboard and manage them for the duration of their tenure.
Our team is committed to delivering excellence as a plug-and-play engineering department that provides long-term stability and generates a positive impact to our partners.
Trio provides only the best senior React developers in Latin America across the most popular and stable web technologies. We focus on building processes that allow us to source, identify and manage senior developers that integrate and deliver real impact to your company.
Unlike freelance developers who do not feel the need to be committed to a team beyond their tasks, Trio’s senior React developers integrate on a full-time basis and are dedicated to working with your team for the long haul. They collaborate in meaningful ways and understand how their work ties into the big picture.
Our core strength lies in our ability to enhance your current teams with senior developers who have the experience and capabilities to drive your roadmap forward in a way that less experienced developers simply cannot do.
Trio operates primarily in Latin America which shares favorable time-zone alignments across the entire United States. You’ll be able to collaborate easier with senior React developers that are available when you are, and eager to work with you remotely.
Trio’s Top-Tier react developers are the highest caliber talent you will find in Latin America. They are experienced professionals who can understand your business goals and product needs and offer long-term stability to your project.
Trio provides Top-Tier React developers with the resources and training they need to continuously improve their skills over time and manage their long-term career growth.
The short answer is yes. However, realistically you will need to plan to onboard engineers effectively so we highly recommend that engineers start the week after accepting a Trio engineer in order to start fresh at the top of the week.
Our experts will support you through the entire process and learn your onboarding processes to better assist you and save time.
Trio’s process is rooted in years of experience scaling and managing high-performance engineering teams. Understanding your requirements is key for us to be able to provide the right Top-Tier React developer for your team based on your current team structure and processes.
Our interview process ensures that we identify signals that align with your individual requirements and present experienced candidates with an extreme level of detail and transparency.
Trio’s process is rooted in years of experience scaling and managing high-performance engineering teams. Understanding your requirements is key for us to be able to provide the right Top-Tier React developer for your team based on your current team structure and processes.
Our interview process ensures that we identify signals that align with your individual requirements and present experienced candidates with an extreme level of detail and transparency.
Working with Trio, communication is the most important value when working with our partners to make sure they are getting the value they are looking for.
You’ll have access to the best Top-Tier React developers in Latin America along with some of the brightest and most passionate engineering managers to guarantee that every developer allocated to your team is happy, healthy, and exceeding your expectations.
Every Top-Tier React developer is paired with an engineering manager at no cost to you who is responsible for ensuring that their needs as well as yours are met within the context of week-to-week engineering initiatives.
These managers are not meant to replace your project or engineering managers but instead support them so they can focus on what matters most for your team, delivering new features on time.
You should look for Top-Tier React developers who have an advanced understanding of the React library, its ecosystem, and its best practices.
A Top-Tier React developer should possess a solid understanding of core concepts such as state management, component lifecycle, and the virtual DOM. They should also have experience with popular libraries and frameworks e.g Redux/Zustand, GraphQL, and Next.js.
Also, and be able to write clean, modular, and reusable components. Excellent problem-solving skills are a must along with strong attention to detail when working with designs.
With Trio you will find the best and most experienced developers for nearshore outsource.
The level of quality that Trio brings to our team is unmatched. We've worked with lots of different technology vendors, and no one else has been able to provide the same quality of work, while also working within our startup budget, that Trio has.
Brianna Socci
Co-Founder & COO of UBERDOC
Trio understands modern engineering which allows them to find high-quality individuals seeking opportunities to challenge themselves and develop new skills. Their engineers have the highest potential and have surpassed our expectations when taking the chance on them.
Brandon Chinn
Sr. Director of Product Engineering @ Tally
Trio is able to match us with the exact front-end and back-end developers we need. There's never been something we wanted that Trio wasn't able to deliver via their team. Their communication is excellent. They're prompt, clear, and highly available.
Meridith Harold
Founder & CEO of The Informed SLP
Trio's team has been outstanding when communicating with our team. We've worked with several of Trio's developers and each one was closely involved in all operations of our business, beyond just technological development.
Alec Harrison
Co-Founder of Visual Boston
Simple and easy. Always made themselves available. When questions would arise, documented options would be presented with pros and cons of each option. Made it very easy to work through issues.
Brian Kludas
VP of Client Success @ Axiom Sales Kinetics
9 years of experience
Sérgio has been a software developer for the past 7 years, specializing in building web applications using Javascript and React. In addition, he possesses experience in developing APIs and mobile apps. His professional experience encompasses working with startups, agencies, and as a consultant. Sérgio is a team player and an effective communicator. He is self-taught, driven by challenges, and always keen to expand his knowledge.
Expertise
React
JavaScript
HTML
Node.js
CSS
ReactJS, is the hottest front-end library right now, with over ten-thousand companies using it. Whether you are building an MVP for a new product, updating a legacy codebase, or scaling your current front-end team, hiring a great senior ReactJS developer is not as easy as it may seem.
If you’re looking to hire senior ReactJS developers, this guide is going to give you what you need to know about hiring the right way.
Alternatively, if you’d like to supercharge your hiring process and find senior ReactJS developers that deliver a positive impact to your team and project, consider working with a trusted tech partner such as Trio.
React’s easy learning curve allowed it to be embraced quickly by the open-source community beyond Facebook, where it was originally invented and introduced.
5 min read
5 min read
Senior ReactJS developers are front-end JavaScript developers responsible for creating and maintaining UIs for web apps and websites. Front-end development describes software development that affects what the user sees and interacts with.
On the more technical side, senior ReactJS developers have the knowledge and expertise to handle complex front-end challenges and come up with production-grade solutions.
When it comes to soft skills, senior ReactJs developers should be ready to mentor their mid-level teammates while balancing their day-to-day work. They are expected to be strong communicators as well as thoughtful and consistent collaborators.
The first step in how to hire a senior ReactJS developer is making sure your potential hires have a proficient grasp of React’s deeper technical gotchas and what’s required of them for front-end development in general.
The day-to-day activities of a senior ReactJS developer can be quite diverse. Here’s a snippet of what you might expect.
The 2020 State of JavaScript Survey shows that React places highly for both usage and satisfaction.
In the United States, the average salary for a React developer across all industries is around $108,175 or $52 an hour. This data was collected from ZipRecruiter which compiles information from employer job postings and other third-party sources.
Senior React developers in the United States can make upwards of $163,000 a year and beyond if they are working in big tech or Silicon Valley. This is due to the costs of living and resources that these companies have.
Many tech companies look to nearshore and offshore countries to find React developers at a lower rate. Outsourcing can be a convenient way for small and medium-sized companies (SMBs) to meet their needs while reducing operating expenditures.
Senior developers who are based in Latin America, for instance, make about $100,000. While this is a great value considering the cost of living in South America, this is relatively inexpensive compared to developer rates in the United States. Again, the cost of living and market economics play a big role here.
The best job descriptions are straightforward with relevant details that allow candidates to validate themselves against what you’re looking for. You can use the following guidelines when building your own job description to hire senior ReactJS developers.
With a quality job description, you’ll be spending a lot of time screening and interviewing candidates. This is the most time-intensive part of the hiring process and also the most crucial.
Everyone has their own approach to interviewing candidates, and we have ours as well. Over time, the conventions have changed based on feedback from the engineering community and also the experiences gained interviewing over 30,000 developers.
Technical interview modalities change depending on the company. Teams with high standards strongly emphasize data structure, algorithms, and systems design/knowledge questions. Others might focus more on practical knowledge with specific technologies and frameworks.
When it comes to soft skills or cultural fit, the questions that companies will ask will also vary greatly. Some will take an analytical/technical approach, while others will ask questions that are intuitive for them.
There’s no right or wrong, only strong or weak signals.
Keep in mind that a candidate’s ability to answer questions does not deliver strong signals about their overall ability to perform well on your team. It simply shows you that they might be able to code their way out of a paper bag with the technology you testing for.
Is there a way to cancel an API request inside a useEffect?
Yes, there is a way to do this by using AbortController:
useEffect(() => {
const controller = new AbortController();
const signal = controller.signal;
fetch('your-api-url', { signal })
.then(res => res.json())
.then(res => setData(res))
.catch(error => {
if (error.name !== 'AbortError') {
console.error(error.message);
}
}
);
return () => controller.abort();
}, []);
The following code doesn’t preserve the component state when isFavorite changes, how can you prevent/fix this?
import { useState } from 'react';
export default function App() {
const [isFavorite, setIsFavorite] = useState(false);
if (isFavorite) {
return (
<div>
<Component isFavorite={true} />
</div>
);
}
return (
<div>
<Component isFavorite={false} />
</div>
);
}
function Component({ isFavorite }) {
const [number, setNumber] = useState(0);
let className = 'number';
if (isFavorite) {
className += ' isFavorite';
}
return (
<div className={className}>
<button onClick={() => setNumber(number + 1)}>
+
</button>
</div>
);
}
When a component is rendered, the state is preserved as long as it’s still in the UI tree. Issues can occur if the component is unmounted and then remounted somewhere else in the tree, and the state will be lost.
To prevent this, render the component within the same parent div to ensure that the state is preserved even if moved around in the UI tree. This way, the component can be safely unmounted and remounted without losing its state.
{isFavorite ? (
<Component isFavorite={true} />
) : (
<Component isFavorite={false} />
)}
For more interview questions for senior ReactJS developers, check out our Interview Questions page.
The user interface is the center point of an end user’s experience with an app.
Whether it’s a web or mobile application, which visual library you use to power it is important. It’s been an age-old debate for years, React vs. Angular vs. Vue, with companies using one or the other.
According to the numbers, the battle for superiority has already been won by React. Let’s figure out why by breaking down a few of the advantages of React.js so you can determine whether or not you want to implement it as your new front-end technology.
ReactJS is a visual library for JavaScript created by Facebook to power UI’s that are reactive and reflective of each user’s individual experience within an app.
Designed to accommodate apps that are highly personalized experiences, it makes complete sense that a company like Facebook which owns some of the largest personalized social networks and communication tools would create something like React.
By dynamically changing the app’s UI based on the data that a user inputs, React JS stands out as the ideal choice as a visual library for your project if it has functions and features such as user profiles, curated content, or customizable interfaces.
The way React prioritizes dynamic experiences makes it stand out as an ideal choice if User-Experience (UX) is something you are trying to prioritize with your app.
UX is increasingly becoming one of those things that make or break your app in an industry as competitive as tech, so considering it heavily during your development is vital.
ReactJS has been noted for being a lot more user-friendly from a development angle. It utilizes a Virtual DOM as opposed to a Real DOM, making updating apps and testing performance a lot more approachable for developers.
By making it easy to reuse code in different parts of your development environment, user interfaces can be designed and programmed in a way that favors quick-development, saving lots of time for other aspects of development.
The way React.js is designed allows it to be much more stable than other visual libraries, removing many of the headaches from front-end development.
The ability to quickly deploy dynamic user interfaces in a way that considers both the end-user and developers makes React.js a well-rounded choice for powering your front-end development.
Hiring senior ReactJS developers isn’t easy and will take a considerable amount of your time. Time is not a luxury and as an engineering leader, you will most likely need to balance your work week between optimizing processes and hiring. That type of context switching is not recommended when better alternatives exist to find talent.
More importantly, making the wrong hire is expensive both in time and cost.
To offload the hiring process, rapidly speed up your time-to-hire, and mitigate risk, reach out to us at Trio. Our 3-step interview process was designed specifically to capture senior-level technical and soft-skill signals and hire the right senior ReactJS developers for your team.
With Trio, you can focus on what you love most - deliver great products while we handpick and shortlist from our pre-vetted talent network. We’ll enable payroll, benefits, taxes, and local compliance and support you with onboarding and long-term talent management.
Happy hiring! 🙂
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