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# Senior Frontend Engineer, Portfolio

- **Company:** Coinbase, Inc.
- **Location:** Hartford, CT, United States
- **Experience:** Expert
- **Salary:** $186,065.0 - $218,900.0
- **Contract:** Permanent contract
- **Skills:** Component-Based Software Engineering, Big Data, Code Review, Systems Integration, TypeScript, Web Applications, ReactJS, Backend, Production Code, Graphql, Front End Software Development
- **Published:** October 19, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3457517338&tx=DT11808UHD&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* 5+ years of frontend engineering experience building consumer-facing web applications with high-quality, well-tested production code
 * Deep expertise in React and TypeScript, with strong command of modern frontend fundamentals (state management, rendering performance, accessibility)
 * 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
 * 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.

## Description

* 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