plasma - Senior Frontend Payments Engineer
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Requirements
• A senior, hands-on engineer with strong experience building React and React Native applications in production. • Comfortable operating full stack, but with a clear frontend-first mindset. • Strong instincts around state management, data flow, performance, and user experience. • Able to reason about complex systems and present them clearly through UI. • Comfortable owning features end-to-end, from architecture to production and iteration. • Calm in ambiguity, opinionated when it matters, and thoughtful about tradeoffs. • Experience building consumer fintech or financial products. • Experience with mobile-first or cross-platform product development. • Familiarity with TypeScript across frontend and backend. • Experience working close to launch or scaling early-stage consumer products. • Interest in crypto or stablecoins (or curiosity to get up to speed quickly).
Responsibilities
• Build and own core product surfaces using React and React Native, powering critical flows like onboarding, balances, sending, and receiving money. • Design frontend architecture that scales across platforms while maintaining consistency, performance, and reliability. • Own complex client-side state, async workflows, and error handling for real-world financial interactions. • Work full-stack where needed, collaborating closely with backend engineers and contributing to APIs and system design. • Partner deeply with design to translate intent into precise, production-quality experiences. • Anticipate and design for edge cases: latency, partial failures, retries, and degraded states. • Set standards for frontend quality, testing, performance, and maintainability. • Help make a stablecoin-powered product feel boring in the best way: fast, clear, and dependable.
Benefits
• At Plasma, we provide each team member with the tools they need to succeed. Benefits for full-time employees include: • Above market salary plus token compensation. • Premium health insurance for you and your family fully covered by Plasma. • Monthly wellness budget, whether for the gym, therapy, sauna & massage. • A beautiful London HQ with gym access and daily food, for those who thrive in an office environment. • All the tools and tech you need to operate at your best. • Visa sponsorship and relocation support if you are joining the London office from abroad. • We look after you. • Data Protection & Privacy • We are committed to protecting the privacy and security of your personal data. Any personal information you provide during the recruitment process will be processed in accordance with the General Data Protection Regulation (GDPR) and applicable local data protection laws.
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