Senior Frontend Engineer

Senior Frontend Engineer - Wallets-as-a-Service Platform

Location: Remote - Location: US or EU (remote-first, office optional). Ideally based in EST or as close to France or Paris is always the major preference.

Compensation: $160K - $220K

We are hiring an engineer to drive the user-facing side of our platform, building the backbone of blockchain wallet infrastructure for the next financial era. This is a high-impact role requiring deep expertise in modern frameworks, cross-platform development, and strong UX instincts. We need a rigorous builder who can translate complex requirements into fast, intuitive, and trustworthy financial tools.

This is not a narrow frontend role; you will move fluidly between polished user experiences and the developer tools that make them possible. You will own features end-to-end, delivering business-grade software that makes complex financial workflows effortless for developers, administrators, and end-users. Speed and security must be balanced with clean architecture and reliable performance.

Responsibilities:

• Full Feature Ownership: Take complete ownership of features, guiding them from the initial idea through launch and subsequent iteration.
• Application Development: Build web and mobile applications for our Wallets-as-a-Service platform.
• Developer Experience (DX): Develop SDKs and tools that make integrations simple and seamless for developers.
• UX/UI Focus: Bring fintech-grade UX and strong design sensibilities to blockchain wallets and user interfaces.
• Architecture: Design for clean architecture, speed, and security, ensuring reliable performance under high demand.
• Collaboration: Work closely with product and design teams to rapidly shape and ship new features.
• Engineering Standards: Write clear documentation, rigorously review code, and uphold high engineering standards.

• Experience: 8+ years of frontend engineering experience, coupled with full-stack capabilities.
• Technical Mastery: Strong proficiency in TypeScript and modern frameworks (e.g., React Native) for cross-platform delivery.
• Mobile Skills: Skilled in mobile and cross-platform development.
• Security Focus: Hands-on experience with secure authentication flows, including WebAuthn and passkeys.
• Domain Track Record: Proven record of shipping user-facing products in the fintech or on-chain (blockchain) sectors.
• Mindset: Strong sense of UX, detail-oriented, and committed to writing reliable, high-quality code.
• Soft Skills: Clear communicator who thrives in fast-moving, collaborative teams.