What We’re Looking For

• 5+ years of experience building high-quality, customer-facing web products.
• Excellent knowledge of React, TypeScript, modern CSS, and browser technologies.
• A track record of owning and shipping complex product features end-to-end, rather than working only on isolated components or implementation tasks.
• Strong product and UX judgment — you can recognize when an interaction doesn't feel right and propose a better solution.
• Exceptional attention to detail and a desire to build interfaces that feel polished, responsive, and intentional.
• Experience building sophisticated animations and interactive UI.
• Strong understanding of modern frontend engineering practices and the judgment to know when and how to apply them.
• Comfortable taking an ambiguous product problem and turning it into a concrete solution.
• Strong ownership mindset — you take responsibility for outcomes, not just tasks.
• Strong desire to actively contribute to product evolution, not just implementation.
• Comfortable operating in a fast-paced startup environment and working on multiple problems in parallel.
• Clear and proactive communication in a distributed team.

Technical Skill Set

• Excellent knowledge of React and TypeScript.
• Strong command of HTML, CSS, browser APIs, and modern frontend architecture.
• Experience building responsive, high-performance web applications.
• Experience with animation and interaction libraries and building complex UI transitions.
• Experience building reusable component systems and frontend abstractions.
• Strong understanding of frontend performance, accessibility, and cross-browser behavior.
• AI-native workflow is your default for product exploration, implementation, debugging, and iteration.

Bonus Points

• Experience building or evolving design systems and component libraries.
• Strong Figma skills and the ability to explore interaction ideas independently before implementation.
• Experience building highly interactive consumer applications where performance and perceived performance matter.
• Experience with Browser Extension development.
• Hands-on Web3 experience: wallets, dApps, blockchain interactions, or DeFi.
• Prior experience in a startup environment that emphasizes trust and autonomy.
• Located in time zones close to Europe for smoother collaboration.
• Curiosity and willingness to challenge existing solutions when better ones exist.

Why You Should Join

Company Overview

Zerion API

• Trusted by 50+ top crypto and fintech brands
• Powering 2k+ active clients monthly
• Over 10B total requests processed
• A lean, senior AI-native team shipping at outsized scale

Zerion Wallet

• 1.7M+ active funded wallets

• 27.6M+ transactions

• 2.5B+ transaction volume

• 416K+ unique holders of Zerion DNA NFT

• Culture: Our culture shines through in our strong team engagement and impressive retention, showing just how much we value creating a workplace where people truly want to stay and thrive.

• People: Collaborate with some of the most driven and intelligent individuals in the crypto space.

• Salary & Benefits: Receive a competitive salary, medical insurance, coworking membership, and additional benefits.

• Unlimited Days Off and Flexible Work Schedule: Recharge and explore life outside the office with our flexible time-off policy and work schedule.

• Remote Work Essentials: We provide all the necessary software and equipment to ensure you're fully equipped to work from home comfortably and efficiently.

• Stock Options: Contribute to Zerion's success and watch your stock options become valuable.

• Travel: Connect with your teammates around the world at industry events and our annual team offsite.

• Distributed Team: Zerion is a fully remote team with members worldwide. Embrace asynchronous collaboration, find your own work rhythm, and enjoy a healthy work-life balance.