Senior Full-Stack Growth Engineer (React Native)

Kraken; United States; Remote; USD 180,000 - 240,000; Full time

Job summary

Kraken is seeking a Senior Full Stack Engineer to join a frontend-leaning growth and experimentation team. You will work primarily in React Native and TypeScript, with backend APIs in Rust when needed, to move fast on experiments that affect millions of users.

You will own experiments end-to-end—from hypothesis to launch and measurement—partnering with product to optimize onboarding, activation and trading activity. Strong JS/TS skills and experience with A/B testing are essential.

Qualifications

• 6+ years of software development experience building and shipping large-scale, consumer-facing applications.
• Strong React and React Native experience is essential.
• Experience running growth experiments at consumer-facing businesses with measurable impact on conversion, activation, retention or revenue.
• Backend proficiency to design and implement services and APIs; openness to Rust.
• Strong JavaScript/TypeScript fundamentals across APIs, WebSockets and real-time systems, mobile performance, testing.
• Experience designing, running and analysing A/B tests with product analytics.

Responsibilities

• Build and ship consumer-facing features quickly in React Native and TypeScript.
• Own experiments end-to-end – hypothesis, design, build, launch, measurement and iteration – using platforms such as Statsig to test globally or within specific markets.
• Improve onboarding, activation and feature discovery to drive conversion, engagement and trading revenue, iterating rapidly on features that are already live.
• Build viral acquisition features and value-add growth features on top of Krak’s existing product offering.
• Contribute to backend services and APIs wherever an experiment requires it, so you can ship across the stack without being blocked.
• Read your own results, including trade-offs between conversion gains and other metrics, and decide whether to scale, iterate or kill.

Skills

React

React Native

TypeScript

JavaScript

A/B Testing

Growth Experiments

Frontend

Tools

Statsig

Rust

Job description

Kraken is seeking a Senior Full Stack Engineer to join a frontend-leaning growth and experimentation team. You will work primarily in React Native and TypeScript, with backend APIs in Rust when needed, to move fast on experiments that affect millions of users.

You will own experiments end-to-end—from hypothesis to launch and measurement—partnering with product to optimize onboarding, activation and trading activity. Strong JS/TS skills and experience with A/B testing are essential.