Senior Staff React Native Developer

ppl3; New York (NY); On-site; USD 180,000 - 260,000; Full time

Job summary

ppl3 is seeking a Senior Staff React Native Engineer to own and shape the mobile platform in a fast-growing crypto consumer product. You will lead architectural decisions, tackle hard engineering problems, and raise the bar for the wider team while shipping features for a global audience.

The role emphasizes ownership, real-time data integration, and blockchain interactions in a highly demanding, in-person engineering culture. Expect intense pace and meaningful impact on scale.

Qualifications

• 8–12+ years of software engineering experience.
• Deep expertise in React Native and mobile architecture.
• Track record of owning and shipping technically complex products end to end.
• Experience building high-performance applications at scale.
• Strong architectural judgment with execution bias.
• Ability to influence technical direction through clear thinking and implementation.
• Experience in high-growth, high-velocity environments.
• Crypto or blockchain experience is valuable, but mobile engineering is key.

Responsibilities

• Set the technical direction for the mobile platform while remaining hands-on.
• Own complex initiatives from architecture design through production.
• Contribute to architecture and code across the React Native stack.
• Build for performance, reliability, and security at scale.
• Integrate APIs, real-time data streams, wallets and on-chain interactions.
• Create a seamless interface between blockchain infra and mobile design.
• Maintain scalable engineering patterns and a clean codebase.
• Collaborate with product, design and backend teams.
• Ship fast, learn from user behavior, and iterate.

Skills

React Native

Mobile architecture

End-to-end ownership

High-performance apps

Real-time data streams

Blockchain experience

Software engineering

Code quality

Job description

We’re working with one of the fastest-growing consumer platforms in crypto to find an exceptional Senior Staff React Native Engineer.

The product operates at enormous scale in a demanding, real-time environment. It’s fast, highly transactional and used by a huge global audience. The engineering challenges are genuinely difficult — and getting them right matters.

This is a senior individual contributor role for someone who wants serious ownership without stepping away from the code. You’ll shape the technical direction of the mobile platform, take on its hardest engineering problems and help raise the standard of the wider team.

What you’ll be doing

• Setting the technical direction for the mobile platform while remaining deeply hand
• s-onOwning complex initiatives from architectural design through to production
• Making high-impact contributions across the React Native s
• tackBuilding for exceptional performance, reliability and security
• Integrating APIs, real-time data streams, wallets and on-chain interactions
• Creating a seamless experience between complex blockchain infrastructure and mobile-first product design
• Establishing scalable engineering patterns and maintaining a clean, modular codebase
• Working closely with product, design and backend engineering
• Shipping quickly, learning from user behavior and continuously improving the product
• Acting as a technical anchor and raising the bar for the engineers around you

What we’re looking for

• 8–12+ years of software engineering experience
• Deep expertise in React Native and mobile architecture
• A track record of owning and shipping technically complex products end to end
• Experience building high-performance applications operating at significant scale
• Strong architectural judgement combined with a bias towards execution
• The ability to influence technical direction through both clear thinking and excellent implementation
• Experience working in high-growth, high-velocity environments
• A naturally high bar for code quality, performance and reliability
• Crypto or blockchain experience would be valuable, but outstanding mobile engineering ability matters most

The environment

This is an ambitious, in‑person engineering culture with high expectations. The pace is intense and the hours can sometimes be long or unconventional.

It won’t suit everyone.

It will suit someone who wants exceptional ownership, difficult technical problems and the opportunity to make an immediate impact on a product used at serious scale.