Mobile Software Engineer – React Native (Mid/Senior)

eNor Securities; Carapicuíba; Presencial; BRL 120.000 - 160.000; Tempo integral

Resumo da oferta

A fintech company in Brazil is seeking a Mobile Software Engineer with expertise in React Native. You will contribute to mobile application development that supports critical financial products, ensuring high quality and stability. The ideal candidate should have over 5 years of mobile or frontend development experience, strong mobile architecture understanding, and proficiency in modern JavaScript frameworks. Join us to face exciting challenges in building robust financial infrastructure.

Qualificações

• 5+ years of experience in mobile or frontend development.
• Strong understanding of mobile architecture and state management.
• Technical English required for reading, writing, and professional communication.

Responsabilidades

• Contribute to the architectural evolution of mobile applications.
• Implement features aligned with product and design.
• Propose improvements in performance, stability, and user experience.
• Ensure scalable, testable, and sustainable mobile code.
• Work closely with backend, product, and design teams.

Conhecimentos

React Native

JavaScript

TypeScript

Mobile architecture

State management

REST APIs

GraphQL APIs

Mobile performance

Descrição da oferta de emprego

eNor Securities is a fintech focused on financial infrastructure, digital assets, and regulated products , operating at the intersection of traditional finance and the crypto ecosystem.

We work in a highly complex technical and regulatory environment , building products that require robustness, security, scalability, and clear architecture .

Our engineering team works closely with product and business, making technical decisions with real impact on operations and company growth.

About the role

We are looking for a Mobile Software Engineer with a strong focus on React Native to strategically contribute to the evolution of our mobile applications.

Beyond building screens, we seek someone with strong engineering fundamentals , mobile architectural thinking , and the ability to collaborate closely with backend, product, and design.

You will help build scalable, stable, and high-quality mobile applications , designed to support critical financial products and long-term evolution.

Expected profile

Mid to Senior level

5+ years of experience in mobile or frontend development

Strong understanding of mobile architecture and state management

Comfortable discussing technical trade-offs and proposing solutions

Hands-on , collaborative, quality-oriented mindset

Technical English required for reading, writing, and professional communication

Required skills

Solid experience with React Native

Strong proficiency in JavaScript and TypeScript

Experience with modern mobile architectures and component-based design

Familiarity with REST and / or GraphQL APIs

Ability to write testable, performant, and maintainable mobile code

Understanding of the mobile lifecycle (Android and iOS)

Nice to have

State management (Redux, Zustand, MobX, or similar)

Modern React / React Native patterns (Hooks, Context, performance optimizations)

Mobile testing (Jest, React Native Testing Library, Detox, or similar)

App publishing and maintenance on App Store and Google Play

Native API integrations (native modules, bridges)

Mobile CI / CD

Familiarity with Expo (and clarity on when to use or not)

Responsibilities

Contribute to the architectural evolution of mobile applications

Implement features aligned with product and design

Propose improvements in performance, stability, and user experience

Ensure scalable, testable, and sustainable mobile code

Work closely with backend, product, and design teams

Support continuous improvement of mobile practices and standards

Differentials

Experience in fintech, crypto, or financial products

Background in large-scale or complex mobile applications

Knowledge of mobile performance, UX, and security best practices

Senior engineer mindset with a systemic and product-oriented view

If you enjoy real technical challenges and want to build impactful financial infrastructure, come join eNor Securities.