Senior React Native Engineer
blockchain • Buenos Aires
No Relocation
Posted: April 23, 2026
Job Description
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.
Additional Content
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.