Senior Mobile Engineer (React Native)

TL;DR

Senior Mobile Engineer (React Native): Building and iterating on a consumer credit card mobile application for the Mexican market with an accent on delivering high-quality features, scalable frontend codebase, and API integrations. Focus on cross-platform development, automated testing across the testing pyramid, and collaborating with backend and product teams to implement high-impact improvements.

Location: Mexico City, MX (Onsite Tue-Thu, remote Mon/Fri optional)

Company

Profitable European fintech unicorn expanding consumer credit products to Mexico, backed by top investors.

What you will do

• Develop React Native mobile app features for consumer credit card product in closed beta, preparing for public launch.
• Collaborate with backend engineers on API contracts using GraphQL and contribute to broader frontend areas.
• Partner with product stakeholders to define, estimate, and deliver improvements with a product mindset.
• Write maintainable code, leverage AI tools for faster delivery, and ensure scalability and performance.
• Handle testing with Jest, React Testing Library, and Maestro across platforms and devices.

Requirements

• B2 (Intermediate) English for technical discussions in English-speaking team.
• Solid TypeScript knowledge and commercial React Native experience for cross-platform mobile, plus React/NextJS web.
• Understanding of multi-platform user needs, automated testing pyramid, and pragmatic implementation.
• Active use of AI development tools like copilots with strong engineering judgment.
• Product mindset for breaking down requirements, estimation, and stakeholder collaboration.

Nice to have

• Working proficiency in spoken/written Spanish for Mexican market.
• Production GraphQL, mobile performance debugging, staged rollouts, accessibility practices.
• UI/UX design experience and scaling products from zero to large user bases.

Culture & Benefits

• Hybrid work: remote Mon/Fri optional, onsite Tue-Thu with in-house healthy lunches.
• Best-in-class compensation including equity and private health insurance.
• Scale a successful fintech with startup mindset in cross-functional team.
• Equal opportunity employer focused on inclusivity and well-being.

Hiring process

• Video call with talent team, then hiring manager for experience discussion.
• Online cognitive assessment and short React Native take-home exercise.
• Final onsite/video: technical peer review of exercise, scenarios, and engineering manager interview on motivations.