Hire React JS Developers
Discover top React JS talent in LATAM. Save 70% and hire in 21 days with Lupa. Pre-vetted experts, seamless setup. Connect now!
Hire Remote React JS Developers
Isabella is a skilled developer from Costa Rica, mastering C#, Azure, and Docker.
- C#
- Azure
- Docker
- Machine Learning Basics
- HTML
Mateo is a charismatic developer with 12 years of crafting code and building solutions.
- Java
- Spring Boot
- C++
- APIs
- AWS
Valeria is a dynamic developer from Costa Rica, mastering Swift to C++ with 5 years' finesse.
- Swift
- Kotlin
- Angular
- TypeScript
- C++
Nicolás is a charismatic developer crafting digital experiences with 5 years of expertise.
- React.js
- JavaScript
- HTML
- CSS
- C#
Meet Miguel: A developer with 10 years of experience turning code into solutions.
- Ruby
- Data Visualization
- Python
- C++
- Docker
Ana is a dynamic developer from Panama, blending AI and Python with 7 years of expertise.
- C++
- Machine Learning Basics
- Data Visualization
- AI
- Python
Valentina transforms code into seamless solutions. Your go-to for all things dev.
- PHP
- CSS
- JavaScript
- Node.js
- C#
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“We needed to scale a new team quickly - with top talent. Lupa helped us build a great process, delivered great candidates quickly, and had impeccable service”
“With Lupa, we rebuilt our entire tech team in less than a month. We’re spending half as much on talent. Ten out of ten”
Lupa's Proven Process
Together, we'll create a precise hiring plan, defining your ideal candidate profile, team needs, compensation and cultural fit.
Our tech-enabled search scans thousands of candidates across LatAm, both active and passive. We leverage advanced tools and regional expertise to build a comprehensive talent pool.
We carefully assess 30+ candidates with proven track records. Our rigorous evaluation ensures each professional brings relevant experience from industry-leading companies, aligned to your needs.
Receive a curated selection of 3-4 top candidates with comprehensive profiles. Each includes proven background, key achievements, and expectations—enabling informed hiring decisions.
Reviews
"Over the course of 2024, we successfully hired 9 exceptional team members through Lupa, spanning mid-level to senior roles. The quality of talent has been outstanding, and we’ve been able to achieve payroll cost savings while bringing great professionals onto our team. We're very happy with the consultation and attention they've provided us."
“We needed to scale a new team quickly - with top talent. Lupa helped us build a great process, delivered great candidates quickly, and had impeccable service”
“With Lupa, we rebuilt our entire tech team in less than a month. We’re spending half as much on talent. Ten out of ten”
“We scaled our first tech team at record speed with Lupa. We couldn’t be happier with the service and the candidates we were sent.”
"Recruiting used to be a challenge, but Lupa transformed everything. Their professional, agile team delivers top-quality candidates, understands our needs, and provides exceptional personalized service. Highly recommended!"
“Lupa has become more than just a provider; it’s a true ally for Pirani in recruitment processes. The team is always available to support and deliver the best service. Additionally, I believe they offer highly competitive rates and service within the market.”
"Highly professional, patient with our changes, and always maintaining clear communication with candidates. We look forward to continuing to work with you on all our future roles."
“Lupa has been an exceptional partner this year, deeply committed to understanding our unique needs and staying flexible to support us. We're excited to continue our collaboration into 2025.”
"What I love about Lupa is their approach to sharing small, carefully selected batches of candidates. They focus on sending only the three most qualified individuals, which has already helped us successfully fill 7 roles.”
"We hired 2 of our key initial developers with Lupa. The consultation was very helpful, the candidates were great and the process has been super fluid. We're already planning to do our next batch of hiring with Lupa. 5 stars."
"Working with Lupa for LatAm hiring has been fantastic. They found us a highly skilled candidate at a better rate than our previous staffing company. The fit is perfect, and we’re excited to collaborate on more roles."
"We compared Lupa with another LatAm headhunter we found through Google, and Lupa delivered a far superior experience. Their consultative approach stood out, and the quality of their candidates was superior. I've hired through Lupa for both of my companies and look forward to building more of my LatAm team with their support."
“We’ve worked with Lupa on multiple roles, and they’ve delivered time and again. From sourcing an incredible Senior FullStack Developer to supporting our broader hiring needs, their team has been proactive, kind, and incredibly easy to work with. It really feels like we’ve gained a trusted partner in hiring.”
Working with Lupa was a great experience. We struggled to find software engineers with a specific skill set in the US, but Lupa helped us refine the role and articulate our needs. Their strategic approach made all the difference in finding the right person. Highly recommend!
Lupa goes beyond typical headhunters. They helped me craft the role, refine the interview process, and even navigate international payroll. I felt truly supported—and I’m thrilled with the person I hired. What stood out most was their responsiveness and the thoughtful, consultative approach they brought.
React JS Developer Soft Skills
Communication
Clearly explain complex concepts and collaborate effectively with team members and stakeholders.
Problem Solving
Approach challenges analytically and innovate to deliver optimal React JS solutions.
Team Collaboration
Work seamlessly with developers, designers, and product managers for cohesive project delivery.
Adaptability
Easily adjust to new technologies and agile methodologies in a fast-paced environment.
Time Management
Prioritize tasks efficiently to meet deadlines and manage workload effectively.
Empathy
Translate user feedback into valuable insights for an improved user-centric experience.
React JS Developer Skills
JavaScript Expertise
Deep understanding of JavaScript, including ES6+ features, for building dynamic web applications.
React.js Proficiency
Experienced in using React.js to create reusable UI components and manage application state efficiently.
State Management Libraries
Skilled in Redux or Context API for efficient application state management.
Frontend Tools
Proficient with tools like Webpack, Babel, and npm/yarn to streamline the development workflow.
Responsive Design
Adept at using CSS frameworks and techniques for building responsive, mobile-first web applications.
RESTful APIs
Experience in integrating and working with RESTful APIs to enhance web application functionality.
How to Write an Effective Job Post for Hiring React JS Developers
Recommended Titles
- Frontend Developer
- Backend Developer
- Full Stack Developer
- JavaScript Developer
- UI/UX Designer
- Web Developer
Role Overview
- Tech Stack: Mastery in React, Redux, HTML/CSS, JavaScript (ES6+)
- Project Scope: Drive UI development, enhance component libraries, optimize app performance, integrate user feedback
- Team Size: Collaborate within an agile team of 6 developers
Role Requirements
- Years of Experience: Minimum of 4 years in front-end development
- Core Skills: Strong skills in component architecture, debugging, UX best practices
- Must-Have Technologies: In-depth knowledge of React, GraphQL, TypeScript
Role Benefits
- Salary Range: Competitive salary based on experience and skills, $75,000 - $115,000
- Remote Options: Flexible remote work options to ensure a balance between work and personal life
- Growth Opportunities: Opportunities for career advancement, continuous education, and technical mentorship programs
Do
- Include details on salary range, bonuses, and perks
- Specify essential technical skills and qualifications
- Outline your company's culture and core values
- Emphasize career growth and learning opportunities
- Utilize clear and compelling language
Don't
- Don't use generic job titles.
- Don't overlook describing your company culture.
- Don't include overly technical jargon.
- Don't skip outlining the interview process.
- Don't forget to mention growth opportunities.
Top React JS Developer Interview Questions
Essential questions for evaluating React JS Developers
How familiar are you with React hooks, and can you describe a situation where you've used them effectively?
Look for candidates who demonstrate a clear understanding of React hooks like useState and useEffect. They should provide specific examples of how they’ve improved code simplicity or performance using hooks.
Can you explain the concept of state management in React and any tools you use to handle it?
Seek answers that show the candidate’s grasp of built-in state management in React and their experience with tools like Redux or Context API. They should explain why they choose specific tools for different scenarios.
Have you implemented any performance optimization techniques in your React applications?
Candidates should mention techniques like memoization, lazy loading, or the use of PureComponent. They should articulate the impact of these optimizations on user experience and application performance.
How do you approach managing component lifecycles in React?
Look for a deep understanding of React component lifecycles, particularly with useEffect hooks. The candidate should explain how they manage side effects and cleanup efficiently.
Describe your experience with unit testing in React applications.
Focus on candidates who have hands-on experience with testing frameworks like Jest or React Testing Library. They should discuss how they ensure their tests cover key functionalities without being brittle.
Can you describe a time when you had to solve a performance issue in a React application? How did you approach it?
Look for candidates who demonstrate a clear understanding of performance issues, such as unnecessary re-renders or large bundle sizes. They should mention using tools like React Developer Tools or Chrome DevTools, and approaches like code-splitting, lazy loading, or memoization.
How do you approach debugging a complex problem in a large React codebase?
Candidates should show a methodical approach, such as breaking down the problem, isolating components, or using tools like React Profiler and console logs. Look for attention to detail and patience in their problem-solving process.
Describe a situation where you had to refactor a piece of code. What was your strategy?
Listen for a structured approach, such as modularizing code, improving readability, or optimizing for performance. Candidates should mention why refactoring was necessary and how it improved the project.
How do you handle asynchronous operations or errors in a React application?
Good candidates mention using Promises, async/await, or libraries like axios for requests. They should also touch on error boundaries in React or using error-handling logic to ensure the app remains stable.
Can you explain a complex feature you built using React? How did you break it down and implement it?
Seek candidates who can articulate their thought process clearly, detailing how they broke down the feature into components, managed state, and how they overcame any obstacles. This shows their planning and execution skills.
Can you describe a time when you had to work closely with a team to achieve a project goal?
Consider how the candidate demonstrates their ability to collaborate effectively. Look for examples of communication, compromise, and the ability to value different perspectives within a team.
How do you ensure clear communication among team members, especially when discussing complex technical issues?
Look for clarity in their approach to simplifying complex ideas. Check if they have strategies for ensuring everyone on the team understands, regardless of their technical expertise.
Can you give an example of when you took a leadership role, even if you weren't in a manager position?
This will indicate their ability to take initiative and lead by example. Consider how they motivated others and guided the team to achieve goals.
Describe a situation where you had to manage stress during a deadline crunch. How did you cope?
Assess their stress management techniques. Look for resilience, problem-solving skills, and the ability to maintain quality work under pressure.
How would you handle a disagreement with a colleague about a technical solution?
Examine their conflict resolution skills. Check if they approach disagreements constructively, focusing on solutions rather than problems, and if they can accept and integrate feedback.
- Struggles with communication
- Can't handle constructive criticism
- Poor problem-solving capabilities
- Frequently late on deliverables
- Resistant to new knowledge
Build elite teams in record time, full setup in 21 days or less.
Book a Free ConsultationWhy We Stand Out From Other Recruiting Firms
From search to hire, our process is designed to secure the perfect talent for your team
Local Expertise
Tap into our knowledge of the LatAm market to secure the best talent at competitive, local rates. We know where to look, who to hire, and how to meet your needs precisely.
Direct Control
Retain complete control over your hiring process. With our strategic insights, you’ll know exactly where to find top talent, who to hire, and what to offer for a perfect match.
Seamless Compliance
We manage contracts, tax laws, and labor regulations, offering a worry-free recruitment experience tailored to your business needs, free of hidden costs and surprises.
Lupa will help you hire top talent in Latin America.
Book a Free Consultation
Top React JS Developer Interview Questions
Essential questions for evaluating React JS Developers
How familiar are you with React hooks, and can you describe a situation where you've used them effectively?
Look for candidates who demonstrate a clear understanding of React hooks like useState and useEffect. They should provide specific examples of how they’ve improved code simplicity or performance using hooks.
Can you explain the concept of state management in React and any tools you use to handle it?
Seek answers that show the candidate’s grasp of built-in state management in React and their experience with tools like Redux or Context API. They should explain why they choose specific tools for different scenarios.
Have you implemented any performance optimization techniques in your React applications?
Candidates should mention techniques like memoization, lazy loading, or the use of PureComponent. They should articulate the impact of these optimizations on user experience and application performance.
How do you approach managing component lifecycles in React?
Look for a deep understanding of React component lifecycles, particularly with useEffect hooks. The candidate should explain how they manage side effects and cleanup efficiently.
Describe your experience with unit testing in React applications.
Focus on candidates who have hands-on experience with testing frameworks like Jest or React Testing Library. They should discuss how they ensure their tests cover key functionalities without being brittle.
Can you describe a time when you had to solve a performance issue in a React application? How did you approach it?
Look for candidates who demonstrate a clear understanding of performance issues, such as unnecessary re-renders or large bundle sizes. They should mention using tools like React Developer Tools or Chrome DevTools, and approaches like code-splitting, lazy loading, or memoization.
How do you approach debugging a complex problem in a large React codebase?
Candidates should show a methodical approach, such as breaking down the problem, isolating components, or using tools like React Profiler and console logs. Look for attention to detail and patience in their problem-solving process.
Describe a situation where you had to refactor a piece of code. What was your strategy?
Listen for a structured approach, such as modularizing code, improving readability, or optimizing for performance. Candidates should mention why refactoring was necessary and how it improved the project.
How do you handle asynchronous operations or errors in a React application?
Good candidates mention using Promises, async/await, or libraries like axios for requests. They should also touch on error boundaries in React or using error-handling logic to ensure the app remains stable.
Can you explain a complex feature you built using React? How did you break it down and implement it?
Seek candidates who can articulate their thought process clearly, detailing how they broke down the feature into components, managed state, and how they overcame any obstacles. This shows their planning and execution skills.
Can you describe a time when you had to work closely with a team to achieve a project goal?
Consider how the candidate demonstrates their ability to collaborate effectively. Look for examples of communication, compromise, and the ability to value different perspectives within a team.
How do you ensure clear communication among team members, especially when discussing complex technical issues?
Look for clarity in their approach to simplifying complex ideas. Check if they have strategies for ensuring everyone on the team understands, regardless of their technical expertise.
Can you give an example of when you took a leadership role, even if you weren't in a manager position?
This will indicate their ability to take initiative and lead by example. Consider how they motivated others and guided the team to achieve goals.
Describe a situation where you had to manage stress during a deadline crunch. How did you cope?
Assess their stress management techniques. Look for resilience, problem-solving skills, and the ability to maintain quality work under pressure.
How would you handle a disagreement with a colleague about a technical solution?
Examine their conflict resolution skills. Check if they approach disagreements constructively, focusing on solutions rather than problems, and if they can accept and integrate feedback.
- Struggles with communication
- Can't handle constructive criticism
- Poor problem-solving capabilities
- Frequently late on deliverables
- Resistant to new knowledge
