Senior Frontend Engineer - Fintech, Card

The Role

We're looking for a Senior Frontend Engineer to join the Card team and help shape that next chapter. This isn't a "here's a ticket, go build it" role. You'll work closely with Product and Design to identify what's missing, what could be better, and how to build it — then execute with high quality and speed.

What You'll Do

Build new features across the Card platform: Trends & Insights, engagement/recognition improvements, points expiration, and off-platform redemption

Own frontend work end-to-end — from design collaboration to testing and deployment Become the subject-matter expert for frontend code

Improve test automation coverage using Playwright

Instrument observability and A/B testing to understand what's working and surface gaps

Contribute ideas proactively: what's missing, what should be improved, how to raise the quality bar

What We're Looking For

Strong React experience, with the ability to build modular, reusable components

Product mindset — you don't wait to be told what to build; you identify gaps and bring proposals

Familiarity with Playwright or a comparable E2E test automation framework

Hands-on with AI-assisted development (Cursor, Claude, or equivalent) — our entire codebase is written with AI tooling

Experience with A/B testing tools (e.g., Amplitude) and frontend observability (e.g., Datadog)

Nice to Have:

Track record of leading features end-to-end with Product, Design, and backend engineers

Experience writing technical documents or planning bug-bashes

This is a contractor role for candidates based in Latin America only. Applications for this role will be accepted through August 30th until the role is filled. We encourage you to apply early, as we may begin reviewing applications before the deadline.