Senior Frontend Engineer - Enterprise React & Real-Time UI

Square One Resources is seeking a Senior Frontend Engineer in Madrid to design and build scalable web applications using modern React. The ideal candidate will have over 5 years of frontend development experience, strong knowledge of TypeScript, and expertise in role-based UI permissions. You will collaborate with backend engineers and contribute to architecture discussions while working on enterprise-grade applications focused on security and performance. Join us to influence frontend architecture and grow systems designed for scalability.
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