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.
Preferred experience
Responsibilities
* Share the teams 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.
* Skilled in TypeScript (or similar languages).
* Expert in building UIs using React, Angular, Flutter or Vue.js.
* Familiar with WebAuthn and passkey authentication.
* Experienced in developing and maintaining SDKs.
* Strong skills in error handling, debugging, and real-time notifications.
* Knowledgeable in secure audit logging and financial UI best practices.
* Solid understanding of cybersecurity principles.
* Proficient with Git for version control.
* Skilled in creating responsive, mobile-friendly user interfaces.
* Proficient in frontend testing tools and workflows.
* Committed to delivering user-focused designs.
* Knowledge of web accessibility standards (WCAG).
* Capable of rapidly prototyping UI concepts.
* Strong problem-solving and idea advocacy skills.
* Clear communicator and calm under pressure.
* Entrepreneurial mindset with a professional approach.
* Deep understanding of crypto wallets is a big plus.
Compensation & Package
* 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.
Interview Process
1 Hiring Manager Interview
* Intro call with Co-CEO (30 min).
2 Behavioral Interview
* Personality and cognitive tests.
3 Technical Interview
* Interview with the CTO - (30 mins)
4 Take Home Test
5 Group Interview
* Focus interview with hiring panel (90 min).
Location
Remote - France or EU/UK (fully remote with optional access to office)