Senior React Native Engineer

Blockchain.com · Buenos Aires · Engineering

Posted 2026-04-23

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We are looking for a Senior React Native Engineer to help us evolve our mobile architecture into a modular, multiplatform system. This role is focused on enabling rapid development of new consumer apps by composing reusable building blocks from our existing stack and delivering them through high-quality React Native applications.

This is a hands-on engineering role with significant ownership, where you will help define how we build and scale a new generation of mobile apps at Blockchain.com—making it possible to quickly launch new crypto experiences across iOS and Android.

WHAT YOU WILL DO

Design and build scalable React Native applications powered by shared modules from our mobile and backend platforms

Drive the architecture of a modular, reusable system, enabling rapid assembly of new apps from core building blocks (auth, wallet, trading, on-ramp/off-ramp, etc.)

Define and enforce clear contracts and boundaries between modules, ensuring flexibility, reliability, and long-term maintainability

Lead complex projects from technical design through delivery and iteration, working across multiple teams

Translate ambiguous product ideas into well-structured technical plans, balancing speed, quality, and scalability

Leverage AI-assisted development tools (e.g., Claude, Codex) to accelerate development, while setting standards for correctness, performance, and security

Review, validate, and refine AI-generated code, ensuring it meets production-grade standards

Drive the evolution of shared UI systems, component libraries, and developer tooling to improve velocity across teams

Own the quality, performance, and reliability of the systems you build, including observability and debugging in production

Mentor other engineers, contribute to code reviews, and help raise the engineering bar across the team

Collaborate closely with Product, Design, Backend, and Mobile teams to deliver cohesive user experiences

Support release processes, app store deployments, and ongoing improvements post-launch

WHAT YOU WILL NEED

5+ years of experience in software engineering, with strong hands-on experience in React Native

Deep proficiency in JavaScript/TypeScript and modern mobile development practices

Proven experience building and shipping production-grade mobile applications at scale

Strong understanding of mobile architecture, modular systems, and scalable design patterns

Experience owning features or systems from design through production and iteration

Ability to navigate ambiguity and drive technical decisions with minimal oversight

Experience integrating complex backend systems and APIs into mobile applications

Strong experience leveraging AI developer tools (e.g., Claude, Codex) effectively in production workflows

Excellent code quality standards, with the ability to review and guide others’ work

Experience improving performance, reliability, and developer experience in mobile apps

Strong communication skills and ability to influence cross-functional teams

NICE TO HAVE

Experience with native mobile development (Swift, Kotlin, or Java)

Experience designing or working on cross-platform or shared architecture systems

Familiarity with crypto, wallets, or financial applications

Experience integrating third-party services (e.g., payments, authentication, on-chain providers)

Experience with CI/CD pipelines, release automation, and app store processes

Exposure to secure key management, authentication flows, or MPC wallets

COMPENSATION & PERKS

Competitive full-time salary based on experience and meaningful equity in an industry-leading company

This is a role based in our Palermo office, with a mandatory in-office presence four days per week.

The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry.

Performance-based bonuses

Apple equipment provided by the company

Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year.

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