Benefits
Job description
About the Role
One of two founding-level engineering hires (equal priority with the generalist role). This seat owns major parts of Tuyo's React Native app end-to-end — UI, state, API integration, testing, release — working directly with the founders. Tuyo runs a shared-ownership model across the whole stack, so this is not a siloed "mobile-only" job; the mobile focus is the entry point, not a boundary. Product feel and polish matter enormously: banking apps are usually clunky, and Tuyo wants customers to feel delight.
Key Responsibilities
Own major parts of the React Native mobile app, building features end-to-end from UI to state, API integration, testing, and release.
Write clean, reliable JavaScript/TypeScript that scales as the product and team grow.
Work directly with founders, product, and design; move from concept to production without waiting for perfect specs.
Debug tricky issues across iOS, Android, and backend integrations.
Obsess over performance, animations, responsiveness, and the details that make a product feel high quality.
Make pragmatic architecture decisions and help set engineering standards and tooling.
Requirements
- A
5+ years of professional software engineering experience shipping production software.
- B
Strong experience building and shipping production apps in React Native.
- C
Deep proficiency in JavaScript and TypeScript.
Bonus Skills
Experience building consumer mobile products.
Expo, native modules, app store releases, or mobile CI/CD.
Backend / full-stack experience (Node.js, APIs).
EVM / Solidity or other crypto experience (a plus, not required).
Early-stage startup experience; previously helped define engineering culture or standards.
Ideal Background
Strongest signal - founded or been part of an early-stage startup; arrives with the "operating mindset" installed. These people are usually the most successful at Tuyo.
Crypto-native (e.g. MetaMask) or top consumer-fintech (e.g. Revolut) can fit — but a strong engineer from an unknown company is often a better bet than someone who's gone big-company to big-company.
Senior, product-minded engineers who care what users actually experience, not just whether the code works.
Crypto experience is a plus, not a requirement - genuine interest is enough.
More information
Job skills
React Native
JavaScript
Mobile Development
API Integration
Version Control
Unit Testing
Debugging
Agile Methodologies
Tuyo
About the Company At Tuyo, we are building the future of money: a fully global, non-custodial app that works like a bank account inside your phone, with no bank in the middle. Users stay in control of their money and can spend and move it instantly and for free across borders, without ever dealing with the complexity of crypto or self-custody — Tuyo removes all of it. It's crypto-heavy at its core but feels completely familiar to a mainstream user. Today Tuyo serves thousands of customers across 130+ countries, with a current growth focus on young adults in the US. It recently closed a $5M seed round (not yet announced) from leading US and European investors, giving it years of runway. The team is small and highly technical — currently three full-time engineers — and ships fast with a strong focus on product quality and how the app feels to use. Founders: Jorge Izquierdo (CEO) co-founded Aragon, building core early-Ethereum infrastructure that holds $30B+ in value. Alejandro Perezpayá was the youngest executive at Allfunds, a European bank with $1.5T in assets under management.
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