Senior Frontend Engineer - React/React Native, AI-Driven

kraken.com; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

Kraken is seeking a senior frontend engineer to build consumer web and mobile experiences for users managing digital assets. You will own product work from discovery to release and iterate with product, design, data, and mobile colleagues.

You bring deep TypeScript and React expertise, production React Native experience, and fluency with Next.js App Router and server components. You will drive performance, accessibility, and testing practices.

Qualifications

• 6+ years of professional software development for web or mobile products.
• Deep TypeScript and React expertise with clear trade-offs in state management and data fetching.
• Production React Native experience including mobile app release pipelines.
• Experience with Next.js App Router and React Server Components.
• Familiarity with A/B testing, feature flags, and experimentation frameworks.
• Knowledge of WebSockets or server-sent events; testing tools like Jest and Playwright; build/CI/CD tooling; performance profiling.
• Strong written and spoken English with ability to explain technical concepts to non-technical partners.
• Active AI-assisted development workflow and responsibility for generated code.

Responsibilities

• Design, build, and maintain customer-facing features for web and mobile apps.
• Own product changes from discovery through launch, monitoring, and follow-up experiments.
• Form hypotheses, run A/B tests, analyze results, and use findings to improve experiences.
• Collaborate across product, design, data, and mobile engineering to ensure cross-platform coherence.
• Make architecture and framework decisions, including routing and client-server boundaries.
• Maintain high standards for correctness, accessibility, performance, and testability; mentor colleagues and lead cross-platform initiatives.

Skills

TypeScript

React

React Native

Next.js App Router

Server Components

A/B testing

WebSockets

Jest

Playwright

CI/CD tooling

Performance profiling

English communication

AI-assisted development

Tools

Jest

Playwright

CI/CD tooling

Web performance tools

Job description

Kraken is seeking a senior frontend engineer to build consumer web and mobile experiences for users managing digital assets. You will own product work from discovery to release and iterate with product, design, data, and mobile colleagues.

You bring deep TypeScript and React expertise, production React Native experience, and fluency with Next.js App Router and server components. You will drive performance, accessibility, and testing practices.