Software Engineer II – Frontend

Kraken Digital Asset Exchange

Software Engineer II developing React web applications for Kraken, a crypto industry leader. Join a globally distributed team to enhance real-time trading experiences.

Posted 5/28/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSenior💰 $96,000 - $192,000 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptReactTypeScriptWebpack

About the role

Key responsibilities & impact

Leverage LLM's to accelerate development while still producing production-ready code.
Design, develop and maintain features in a large, multi-product React web application used by professional traders globally.
Own performance end to end: profile, measure and optimise real-time UI updates.
Build and evolve the WebSocket and Web Worker layer that powers live market data.
Set the standard for high-quality code through reviews, mentorship and constructive feedback.
Contribute to technical strategy: architecture, data flow, state management.
Safeguard performance improvements with regression-resistant patterns, instrumentation, dashboards and alerts.
Own observability for the features you ship: meaningful Sentry instrumentation and actionable alerts.
Write integration and component tests.
Drive process improvements and lead by example.

Requirements

What you’ll need

4+ years of experience in software development, with a focus on production web applications.
Deep understanding of JavaScript/TypeScript and strong proficiency with the modern React ecosystem.
Experience building real-time UIs with WebSockets and Web Workers.
Strong React and JavaScript performance skills.
Experience working with LLM coding tools (Cursor, Claude, Copilot or similar).
Hands-on experience with React Query or similar.
Practical experience with production user monitoring and observability.
Experience with frontend testing at multiple levels.
Comfortable with feature flagging and progressive rollouts.
Familiarity with modern frontend build pipelines and tooling (rsbuild/webpack/SWC, TypeScript project references).

Benefits

Comp & perks

Health insurance
401(k) matching
Flexible work hours
Paid time off
Remote work options

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

JavaScriptTypeScriptReactWebSocketsWeb WorkersReact Queryfrontend testingperformance optimizationproduction web applicationsfeature flagging

Soft Skills

mentorshipconstructive feedbackprocess improvementsleadershipcommunication