Senior React Native Engineer

Engineering & Development
|
Senior
Senior
Colombia
Brazil
|
Colombia
Brazil
|
Remote
open
February 10, 2026

About the company

First Line Software works with some of the worlds top businesses and organizations across industries such as healthcare, data engineering, warehouse automation, retail digitalization, mobile app development, and e-commerce. Our projects are as diverse as our people, and we believe in building software through transparency, collaboration, and shared success. We foster an environment where knowledge is exchanged openly and engineers are encouraged to take ownership and grow.

The project and your role

We are looking for a Senior React Native Engineer to join an ongoing mobile development project built with React Native and React. You will work within an existing application architecture, focusing on delivering high-quality, scalable, and performant mobile features. The role involves close collaboration with designers, backend engineers, and product stakeholders, ensuring that the mobile application remains reliable, responsive, and easy to maintain over time. This project offers the opportunity to work with modern frontend technologies, strong engineering practices, and a long-term vision for scalability and maintainability.

Responsibilities

  • Design, develop, and maintain React Native components using the existing application architecture.
  • Implement best practices for data flow, state management, and component communication.
  • Ensure optimal performance, reliability, and responsiveness of mobile applications.
  • Collaborate closely with designers, backend engineers, and product stakeholders to deliver high-quality features.
  • Participate in code reviews, ensuring adherence to coding standards and architectural guidelines.
  • Troubleshoot, debug, and resolve issues throughout the application lifecycle.
  • Contribute to the continuous improvement of development processes and technical standards.
  • Support application scalability and long-term maintainability.

Your skills

  • Strong proficiency in React Native, React, JavaScript, and TypeScript.
  • Solid understanding of component-based architecture, state management, and React hooks.
  • Experience building efficient, reusable, and scalable UI components.
  • Familiarity with RESTful APIs, asynchronous data handling, and backend integrations.
  • Working knowledge of mobile performance optimization, debugging, and profiling.
  • Experience using Git and collaborative development workflows.
  • Ability to write clean, maintainable, and well-documented code following best practices.
  • Strong problem-solving skills and high attention to detail.

What we can offer

The FLS difference

  • Our modern stack projects are the right mix of exciting and challenging
  • Gain access to our diverse range of training programs, courses, and certifications;
  • Choose your work style - remote, on-site or hybrid in one of our stunning offices. We offer the freedom of flexible working hours.
  • Enhance your language skills with our corporate English classes
  • Work from anywhere and explore the world with our Workation program
Start Application

Recommend a Friend

Thank you for a recommendation! We'll reach out to your friend shortly!
Oops! Something went wrong while submitting the form.
Share
Recommend a friend

Similar open positions

February 10, 2026

Senior React Native Engineer

Engineering & Development
|
This is some text inside of a div block.
View and apply
February 10, 2026

Senior Java Developer

Engineering & Development
|
This is some text inside of a div block.
View and apply
November 17, 2025

Senior Optimizely Backend Developer

Engineering & Development
|
This is some text inside of a div block.
View and apply

Apply now

Max file size 10MB.
Uploading...
fileuploaded.jpg
Upload failed. Max size for files is 10 MB.
Max file size 10MB.
Uploading...
fileuploaded.jpg
Upload failed. Max size for files is 10 MB.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Our Hiring Process

Getting started with us

Here's what you can expect when you send us your application

Step 0

Tech Talent Hunt

Be scouted or apply for your role

Step 1

Meeting & Connecting

Our first step to building lasting relationships

Step 2

Uncovering Potential

Your HR interview

Step 3

The Code Challenge or Technical Interview

It's time to show what you can do best!

Step 4

Client’s Interview

Demonstrating expertise to our future partners

Final

The Last Piece of the Puzzle

Job offer to finalize our tech team

Join our team of innovative thinkers

Let’s talk!

Have any questions? Fill out the form and our team will be in touch!

Let’s talk!

Have any questions? Fill out the form and our team will be in touch!