Full Stack Engineer - Growth & Experimentation – Krak
Core
Build and ship consumer-facing growth experiments in React Native to accelerate user acquisition, activation, and trading revenue for a global crypto platform.
Role type
Senior frontend-leaning full-stack engineer (growth & experimentation)
Builds
Consumer app features, viral acquisition tools, and A/B test infrastructure for Kraken's mobile platform
Domain
Fintech / Cryptocurrency / Consumer Mobile
Deliverable
product features
Required skills
React Native, TypeScript, A/B testing, product analytics, API design, mobile performance optimization
Preferred skills
Rust, Statsig, SQL, AI tooling, native mobile development (iOS/Android)
Technologies
React Native, TypeScript, Rust, Statsig, WebSockets
Responsibilities
Design and implement fast, lightweight experiments from hypothesis to launch; optimize onboarding and feature discovery; build backend APIs to support experiments; analyze results to decide on scaling or iteration; contribute to viral growth features
Seniority
Senior, hands-on IC