About Finix

Finix is building the integral operating system for fintech, starting with payments. From startups to publicly traded companies, Finix processes tens of billions of dollars annually both in-store and online. Finix was founded in 2015 and is headquartered in San Francisco.

To date Finix has raised over $200M, including a $75M Series C led by Acrew Capital and Lightspeed Venture Partners and backed by American Express Ventures, Bain Capital Ventures, Homebrew, Inspired Capital, Visa, and others

As a Senior Frontend Engineer on our Frontend Engineering Team, you'll architect and build the core payment experiences that power thousands of businesses. You'll develop our comprehensive payments management dashboards and embeddable components that merchants integrate directly into their applications.

In this role, you'll drive the technical vision for customer-facing products from conception to production. You'll lead design and implementation decisions while ensuring our payment interfaces remain performant, secure, and intuitive as we scale.



Our engineering team operates with high autonomy and ownership—each engineer makes meaningful contributions that directly impact customer success in our dynamic fintech environment.

Finix is looking for engineers who bring exceptional technical acumen, attention to detail, passion for growth, and an obsession with delivering an exceptional customer experience.

You Will:
- Build and maintain sophisticated payment dashboards and transaction management interfaces
- Build performant, accessible, and reusable component libraries that scale across multiple products
- Lead technical design sessions and drive frontend architecture decisions
- Optimize application performance for high-volume financial data processing
- Collaborate with Product, UX, and Engineering teams to translate complex payment workflows into intuitive user experiences
- Mentor engineers and establish frontend development standards and best practices

You Ar

📌 Senior Frontend Engineer (La Mesa)
🏢 Finix Payments
📍 La Mesa