Senior React Native Engineer

OnHires • Miami, FL

1d

About The Position

One of our clients is building the next generation of global finance. They're creating a mobile-first platform that makes moving, spending, and managing money across borders as simple as using a traditional bank account—while leveraging cutting-edge blockchain technology behind the scenes. Users enjoy a seamless experience without ever needing to understand crypto. The company already serves thousands of customers across 130+ countries and is rapidly expanding its presence in the US market. Having recently secured $5M in seed funding from leading international investors, they're well-funded and entering an exciting growth stage. With a lean, highly technical team, every engineer has a direct impact on both the product and the company's future.

Requirements

• 5+ years of professional software engineering experience.
• Strong experience building and shipping production React Native applications.
• Expert-level JavaScript and TypeScript skills.
• A product mindset and passion for delivering exceptional user experiences.
• Comfortable working in fast-moving startup environments with high ownership.

Nice To Haves

• Experience building consumer-facing mobile products.
• Expo, native modules, App Store releases, or mobile CI/CD.
• Backend or full-stack experience (Node.js, APIs).
• Web3, blockchain, or Solidity experience (nice to have, not required).
• Previous experience at an early-stage startup.
• Experience helping define engineering processes and technical standards.

Responsibilities

• Build and own major features of the React Native app end-to-end.
• Develop clean, scalable JavaScript and TypeScript code.
• Collaborate closely with founders, product, and design teams to bring ideas to life.
• Debug and solve complex issues across iOS, Android, APIs, and backend integrations.
• Optimize performance, animations, responsiveness, and overall user experience.
• Help establish engineering standards, architecture, and development best practices.

Benefits

• Join as one of the company's first founding engineers.
• Build a product used by customers in 130+ countries.
• Work directly with the founders and influence product direction.
• Own features from idea to production.
• Create a world-class mobile experience where every interaction matters.
• Move fast, make decisions, and see your work shipped quickly.
• Help shape the engineering culture from the ground up.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed