Senior React Native Engineer

Kake; Brasil; Remote; BRL 643,000 - 965,000; Full time

Benefits offered by this job

Fully Remote

Better Me Fund

Compassion is Badass

Job summary

Kake is a remote-first, people-first global community of senior engineers. We are seeking a Senior React Native Engineer to join a product team building a cross-platform trading app for a financial services client. You will work in a frontend-focused role with live market data, secure integrations, and high-quality mobile UI in a regulated industry.

Strong TypeScript and React Native skills are essential. Why join Kake?

Qualifications

• 4+ years of professional experience building React Native apps with TypeScript.
• At least one app published on both the App Store and Google Play.
• Strong knowledge of secure authentication in mobile apps (OAuth/OIDC) and token lifecycle.
• Experience building real-time features and managing app state with Redux, Zustand, or React Query.
• Proven ability to profile, debug, and optimize mobile app performance.
• Experience with automated testing (Jest, Detox) and mobile build/release pipelines (EAS, Fastlane).
• Previous work on fintech, trading, banking, or other regulated products.
• Excellent written and verbal communication skills in English.
• Ability to work independently in a remote environment.

Responsibilities

• Develop and release new features for a cross-platform mobile app, following existing architecture and standards.
• Connect the app to backend services, handling authentication, error recovery, and data pagination.
• Build live-updating screens for financial data with fast, stable performance.
• Implement polished designs for iOS and Android with consistent UX.
• Contribute to peer code reviews, device testing, and agile ceremonies.

Skills

React Native

TypeScript

OAuth/OIDC

Secure storage

API integration

English communication

Remote work

Tools

Redux

Zustand

React Query

Jest

Detox

EAS

Fastlane

Job description

Kake is a remote-first company and a people-first global community of senior engineers. Kake engineers are behind some of the world’s most innovative products (Brands you’ve heard!), from Fortune 500 to fast-growing companies. We believe it’s not where your table is, but what you bring to the table that matters. Our community spans 45,000+ engineers across 55+ countries; join a culture where great people stay, grow, and thrive (and love eating kake!).

We’re looking for a Senior React Native Engineer to join a product team building a cross-platform trading app for a financial services client. The project is well underway, and you’ll step into an established codebase and agile workflow to help deliver the remaining build. This is a frontend-focused role where you’ll work on live market data, secure integrations, and high-quality mobile UI in a regulated industry. Strong TypeScript and React Native skills, experience publishing to both app stores, and the ability to ramp up quickly on an existing project are essential.

Key Responsibilities

• Develop and release new features for a cross-platform mobile app, following the team’s existing architecture and standards.
• Connect the app to backend services, handling authentication, error recovery, paginated data, caching, and indicators that show users how current their data is.
• Build live-updating screens for financial data that remain fast and stable, even when connections drop or data arrives quickly.
• Implement designs with a high level of polish, ensuring a consistent experience on iOS and Android.
• Contribute to peer code reviews, device testing, and regular agile ceremonies.

Core Requirements

• 4+ years of professional experience building React Native apps with TypeScript, with at least one app published on both the App Store and Google Play.
• Solid understanding of secure authentication in mobile apps (OAuth/OIDC, token lifecycle, secure storage) and resilient API integration.
• Experience building real-time features and managing app state with tools such as Redux, Zustand, or React Query.
• Proven ability to profile, debug, and optimize mobile app performance.
• Experience with automated testing (e.g., Jest, Detox) and mobile build and release pipelines (e.g., EAS, Fastlane).
• Previous work on fintech, trading, banking, or other regulated products.
• Excellent written and verbal communication skills in English.
• Ability to work independently in a remote, fast-paced environment.

Nice-to-Have

• Experience handling multiple currencies and locale-specific number formatting.
• Familiarity with hybrid frameworks such as Ionic.
• Experience joining projects already in progress and becoming productive quickly.

Additional

• Engagement: Contract, full-time, remote.
• US Timezone Overlap: EST

Why Join Kake?

• Competitive Pay in USD: Work globally, get paid globally.
• Fully Remote: Simply put, we trust you.
• Better Me Fund: We invest in your personal growth and passions.
• Compassion is Badass: Join a community that invests in social good.

Quick note: Due to the high volume of applications, only shortlisted candidates will be contacted.