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Senior Frontend Engineer $100k - $130k Remote Eu
GroRapid LabsMadrid, Comunidad de Madrid, EspañaHace más de 30 días
Descripción del trabajo6+ years of experience in frontend development. Strong proficiency in TypeScript (or similar languages). Expertise in building UIs with React, Angular, Flutter, or Vue.js. Experience with WebAuthn and passkey-based authentication systems. Proven ability to build and maintain frontend SDKs. Familiarity with fintech / crypto UI best practices, error handling, real-time updates, and secure audit logging. Solid understanding of cybersecurity principles and secure-by-design development. Proficient in Git, responsive design, and frontend testing frameworks. Passion for user-focused design and delivering frictionless financial experiences. Knowledge of WCAG accessibility standards and commitment to inclusive design. Excellent communication skills and a calm, solution-oriented mindset. Entrepreneurial spirit and ability to operate in dynamic, resource-constrained environments. Deep understanding of crypto wallets is a big plus. Equity : 300–600 stock options (0.1–0.2%). Fully remote position (France / EU-based preferred). Option to work from a physical office if desired. MacBook Pro and all the gear you need to do your best work. Intro Call – Meet the Co-CEO (30 min) Behavioral Interview – Includes personality & cognitive assessments Technical Interview – Deep dive with the CTO (30 min) Take-Home Assignment – Showcase your skills in a practical challenge Panel Interview – Final interview with our leadership team (90 min)
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Join a world-class team of technical leaders (CTO, CPO, CISO) and seasoned engineers (Software, Security, Platform) building the next-generation blockchain wallet infrastructure that will power the future of finance.
We’re looking for a Senior Frontend Engineer with deep experience in modern web and mobile development, a solid grasp of UX design principles, and a track record of building high-quality fintech or crypto applications. This role is perfect for someone who thrives in fast-paced environments, has a strong eye for detail, and enjoys pushing the boundaries of what’s possible in user experience and security.
What You’ll Do
- Collaborate with the team to shape the product vision, prioritize the roadmap, and ensure quality and delivery timelines.
- Lead the development of responsive and secure UI components for our Wallet-as-a-Service platform (web and mobile).
- Build and maintain frontend SDKs to enable seamless client integrations.
- Implement passkey-based authentication using WebAuthn and security best practices.
- Translate fintech and banking UX / UI principles into intuitive crypto wallet experiences.
- Rapidly prototype ideas and deliver pixel-perfect, production-grade interfaces.
- Ensure high performance, reliability, and accessibility across platforms.
- Write clean, maintainable code and comprehensive documentation.
- Contribute to a strong engineering culture through code reviews and technical collaboration.
- Continuously explore new tools and technologies to improve frontend development workflows.
What We’re Looking For
What You’ll Get
Interview Process
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Senior Frontend Engineer • Madrid, Comunidad de Madrid, España
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