Senior Frontend Engineer - Crypto

Career Renew is recruiting for one of its clients a Senior Frontend Engineer - Crypto - this is a fully remote role, but candidates need to be based in EU/UK.

Join a team of exceptional leaders (CTO, CPO, CISO) and skilled experts (Software, Security, Platform Engineers) to build the leading blockchain wallet infrastructure for the next financial era. We are looking for a Senior Frontend Engineer with expertise in modern web and mobile development (iOS/Android), a strong grasp of UX design principles, and proven experience building fintech or crypto applications. The ideal candidate has a sharp eye for detail, excels under pressure, and thrives in dynamic, resource-limited environments. As a Senior Frontend Engineer, you will design and implement high-quality, user-facing software solutions that deliver frictionless financial experiences. Your goal is to deliver secure, high-performing interfaces that meet quality standards and upgrade user experience.

Responsibilities

• Share the team’s vision, set priorities on the product roadmap, and ensure deadlines and production quality are met.
• Bring innovative ideas to solve technical challenges.
• Solve front-end challenges with creative and effective solutions.
• Contribute to UI (web/mobile) development for the Wallets-as-a-Service platform.
• Incorporate fintech and banking UX/UI best practices into crypto wallets.
• Ensure secure, user-friendly passkey-based authentication experiences.
• Develop and maintain SDKs for smooth client integration.
• Implement responsive designs for optimal performance across all interfaces.
• Apply and stay updated on security best practices for frontend components.
• Review product code to ensure it meets specifications and requirements.
• Maintain clear, concise technical documentation.
• Address issues quickly and document resolutions.
• Collaborate with teams to enhance software development practices.
• Stay informed on new technologies and suggest improvements.

Requirements

6+ years of experience as a Frontend Engineer or similar.

Expert in building UIs using React, Angular, Flutter or Vue.js

Familiar with WebAuthn and passkey authentication.

Experienced in developing and maintaining SDKs.

Noteworthy educational backgrounds (excluding executive certs from a year ago)

Benefits

• Salary: €100,000-120,000 per year (full-time work contract).
• Equity: 300-600 stock options (i.e., 0.1-0.2%) vested over 4 years.
• Location: France or EU (fully remote with optional access to office)
• Equipment: MacBook Pro and other work essentials.