Senior / Staff React Native Engineer

Beyond Reality Studios; Teletrabalho; BRL 160.000 - 200.000; Tempo integral

Resumo da oferta

A dynamic technology company in Brazil seeks an experienced mobile developer to build high-performance applications for cryptocurrency trading. You will collaborate closely with backend teams and optimize user experience through robust mobile solutions. Candidates should have extensive experience with React and React Native, along with a proactive approach to remote collaboration. A strong understanding of real-time applications and English proficiency is required. This role offers a unique opportunity in a rapidly evolving fintech environment.

Qualificações

• 5+ years of experience with React.
• 3+ years of hands-on React Native experience.
• Proven experience working on production mobile applications.
• Ability to work autonomously in remote environments.
• Intermediate to advanced English is required.

Responsabilidades

• Design and build robust mobile applications using React Native.
• Implement real-time communication with WebSockets and streams.
• Integrate REST APIs and complex backend services.
• Optimize performance, stability, and UX.
• Participate actively in frontend technical decisions.
• Collaborate with backend engineers and product managers.
• Ensure code quality and follow production best practices.

Conhecimentos

React

React Native

Real-time applications

API consumption

State management

Performance optimization

UX improvements

Descrição da oferta de emprego

Overview

Project Description We are building WON, a high-performance, mobile-first cryptocurrency trading terminal focused on robust infrastructure, performance, and distributed systems. The goal of the project is to deliver a professional trading experience within a single mobile interface, including :

Real-time mobile applications

Advanced data visualization and charting

Real-time communication with backend systems (WebSockets)

High reliability, low latency, and excellent UX

A scalable architecture built for long-term growth

The mobile frontend is a critical part of the system, as it is the direct interface between users and complex trading flows with real-time data.

What You\'ll Work On

• Architecture and development of complex mobile applications
• Implementation of real-time data flows
• Integration with backend APIs and services
• Performance optimization and user experience improvements
• Direct collaboration with backend engineers and product

Responsibilities

• Design and build robust mobile applications using React Native
• Implement real-time communication (WebSockets, streams)
• Integrate REST APIs and complex backend services
• Optimize performance, stability, and UX
• Actively participate in frontend technical decisions
• Collaborate closely with backend engineers and product managers
• Ensure code quality and production best practices

Qualifications

• 5+ years of experience with React
• 3+ years of hands-on React Native experience
• Proven experience working on production mobile applications
• Experience with :
• Real-time applications
• API consumption
• State management

• Ability to work autonomously in remote environments
• Must be located in Brazil
• English Requirement (IMPORTANT) Intermediate to advanced English is required.
• You must be able to :
• Read technical documentation in English
• Write technical messages in English
• Participate in technical calls in English
• The client is international.

Nice to Have (Plus)

• Experience in fintech, trading, or financial products
• Experience with charts, data visualization, or dashboards
• Experience publishing apps to App Store / Google Play
• Strong mobile-first mindset and UX focus
• Experience working with international remote teams