B

Blockchain.com

Crypto trading, wallets, and institutional API

Mid-Level React Native Engineer

Mobile EngineeringConfirmed live in the last 24 hours
Full-timeBuenos Aires, Argentina

About the Job

Requirements

  • 2–5 years of experience in software engineering, with hands-on experience in React Native.
  • Strong proficiency in JavaScript and TypeScript and modern mobile development practices.
  • Experience building and shipping production mobile applications for iOS and/or Android.
  • Solid understanding of component-based architecture and modular design principles.
  • Ability to work with APIs and integrate complex backend-driven features.
  • Experience using AI developer tools such as Claude or Codex, or strong interest in leveraging them effectively.
  • Strong attention to detail and ability to review and validate code for quality and correctness.
  • Familiarity with mobile performance, debugging, and testing best practices.
  • Good communication skills and ability to collaborate across teams.

Responsibilities

  • Build and maintain React Native applications that leverage shared modules from existing mobile and backend systems.
  • Contribute to a modular architecture that enables rapid assembly of new apps from reusable components such as authentication, wallet, trading, and on-ramp/off-ramp modules.
  • Collaborate with mobile, backend, and product teams to define clean interfaces between modules and ensure seamless integration.
  • Translate product ideas into shippable mobile experiences, focusing on speed, quality, and scalability.
  • Use AI-assisted development tools such as Claude and Codex to accelerate implementation while ensuring correctness, performance, and maintainability.
  • Validate and review AI-generated code, maintaining a high standard for quality and security.
  • Contribute to shared user interface patterns, component libraries, and developer tooling for faster app development.
  • Participate in the full development lifecycle, including prototyping, building, testing, releasing, and iterating.
  • Support app store deployments, releases, and post-launch improvements.
  • Debug issues across the stack and improve the reliability and performance of mobile apps.

Desired Qualifications

  • Experience with native mobile development using Swift, Kotlin, or Java.
  • Experience working on shared codebases or cross-platform architectures.
  • Familiarity with cryptocurrency, wallets, or financial applications.
  • Experience integrating third-party services such as payments, authentication, or on-chain providers.
  • Experience with continuous integration and continuous delivery pipelines and app store release processes.
  • Exposure to secure key management, authentication flows, or multi-party computation wallets.

About the Company

Blockchain.com

Crypto trading, wallets, and institutional API

Blockchain.com operates a global platform for buying, storing, and trading cryptocurrencies. It serves both individuals and institutions, offering a fast cryptocurrency exchange with deep liquidity, a digital wallet for storing funds, and an institutional API for programmatic trading and live market data. The platform supports deposits and withdrawals in multiple fiat currencies through a banking network, plus premium services for advanced users. Transactions generate revenue from trading fees, wallet-related fees, and API access for enterprises. Compared to rivals, Blockchain.com emphasizes high-speed trading, broad fiat and institutional access, and robust security and reliability through its advanced matching engine, liquidity, and custody protections. Its goal is to provide a reliable, accessible, and scalable crypto trading and custody ecosystem that meets the needs of both individual traders and large institutions.

Company size
1,001-5,000
Company stage
Series E
Total funding
$600M
Headquarters
London, United Kingdom
Founded
2011

Recently Posted Jobs

Explore more opportunities at Blockchain.com

See more jobs