Senior Frontend Engineer (Portfolio)
Posted
Summary
Senior Frontend Engineer on the Portfolio team at Coinbase, building real-time balances, holdings, and P&L experiences for millions of users across web (React/TypeScript) and mobile. Owns end-to-end delivery of high-performance, accessible financial data UIs, collaborating with backend, design, and product.
- The Portfolio team within the Consumer & Business group owns how millions of Coinbase users understand what they hold and how it’s performing. We build the balances, holdings, and profit-and-loss experiences at the core of the Coinbase app and website, the surfaces users open first, check most often, and trust most
- As a Senior Frontend Engineer on Portfolio, you’ll turn complex, real-time financial data into clarity for every kind of Coinbase user, from first-time buyers to sophisticated traders
- Own the design and delivery of core Portfolio experiences including balances, holdings, and PnL across web (React/TypeScript) and native mobile (iOS and Android)
- Build performant, accessible, pixel-accurate UI that renders real-time financial data at Coinbase scale
- Partner with backend, design, and product to take ambiguous problems from scoping through production rollout
- Drive frontend architecture and quality including component reuse, state management, testing, and performance instrumentation
- Strengthen the team’s engineering bar through rigorous code reviews, technical mentorship, and well-documented architecture decisions
- 5+ years of frontend engineering experience building consumer-facing web applications with high-quality, well-tested production code
- Demonstrated experience building real-time or high-throughput UIs and integrating with backend APIs (REST/GraphQL), with consistent collaboration alongside design and product partners to shape product outcomes
- Utilizes generative AI responsibly, maintaining human oversight to deliver business-ready outputs and drive measurable improvements in workflow efficiency, cost, and quality
- Track record shipping and owning complex features end-to-end in production, ideally in financial, trading, or other data-intensive applications where accuracy and latency matter
- Deep expertise in React and TypeScript, with strong command of modern frontend fundamentals (state management, rendering performance, accessibility)