Senior Frontend Engineer - Fintech, Card

About Engine At Engine, we’re transforming business travel into something personalized, rewarding, and simple. For too long, managing travel and spend has been overwhelming and fragmented — we’re here to change that. We believe the future of travel should be seamless and powered by technology that delights customers at every step. That’s why we’re building a platform that brings together corporate travel, a powerful charge card, and modern spend management in one place. To make this vision real, we’re looking for exceptional, mission-driven people to help redefine how businesses manage and experience travel. More than 30,000 companies already rely on Engine to support over 1 million travelers and billions in annual bookings each year. Cash flow positive with rapid growth, we pair exclusive Engine-only rates, industry-leading rewards, and intelligent automation to help businesses save money while delivering world-class personalization and convenience. Backed by Telescope Partners, Blackstone, and Permira, Engine has been recognized as one of the fastest-growing travel and fintech platforms in North America, with honors including the Deloitte Fast 500 and Built In’s Best Places to Work. 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. The Engine Edge: Perks & Compensation We believe in rewarding great work with great benefits: • Compensation: Competitive base pay tied to role and experience, with opportunities for bonuses, commissions, and equity. • Benefits: Check out our full list at engine.com/culture. • Environments for Success: Different roles have different needs in terms of the environments that drive success which is why we have a hybrid-hub model. Whether you are in one of our amazing offices or fully remote, we’ll make sure you have what you need to succeed. Perks and benefits may vary based on employment type, location, and more. Ready to Build the Future of Work Travel? Join us on our mission to transform how work travel works—for businesses, for travelers, and for the industry. Apply now and let’s make travel simpler, smarter, and more enjoyable—together.