Senior Frontend Engineer

San Francisco
Engineering – Core Engineering /
Full-time /
About Us
Move money. Make money. Finix processes billions of dollars every year for leading SaaS, marketplace, and e-commerce platforms. With one developer-friendly API, Finix helps companies accept payments, manage payouts, and onboard merchants—everything you need to enable payment processing, and grow revenue.
Finix has raised over $100M from American Express Ventures, Bain Capital Ventures, Homebrew, Inspired Capital, Lightspeed Venture Partners, Sequoia Capital, Visa, and others.

About the role:

As an engineer on the Frontend Engineering Team, you will build and support the Finix payments management dashboards and our embeddable user-facing components. 

In this senior front-end engineering role, you will lead the technical design, implementation, testing, and production support of Finix's user-facing software products, continuously ensuring a reliable service for our customers. This is a team of focused engineers who each deliver significant value in a fast-paced environment. There's never a dull moment since we have many exciting new ideas to build and we work as a team to deliver the most value we can. 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:

    • Work on the core UI/UX for customer-facing features and internal tools
    • Design efficient and reusable components that power our web applications
    • Architect our UI systems to scale and resolve performance issues
    • Collaborate closely with Product, UX, and internal customer teams
    • Mentor other team members on engineering best practices.

You Are:

    • Able to balance delivering code, infrastructure, and tests against attention to quality
    • Experienced in defining technical designs that meet user needs
    • Skilled with disambiguating requirements, and identifying design implications
    • Proactive in monitoring live systems and troubleshooting production issues
    • Committed to documenting and communicating to share and preserve knowledge.

You Have:

    • 6+ years of hands-on development with HTML, CSS/SCSS & JavaScript
    • 2+ years of hands-on development in React
    • Experience with State Management systems (Redux, Recoil, Jotai, and Zustand)
    • Experience using and configuring testing frameworks

Bonus if you have:

    • Payments, Fraud, Risk, or Finance background
    • Experience with Spring, Gradle, Docker, K8s, and/or AWS infrastructure
    • Previously implemented secure, highly available, and observable REST APIs and services

Finix is an equal opportunity employer and values diversity. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or any other protected class.

Role: Software Engineer IV
Level: IC4
Location: San Francisco, CA
Base Salary Range: $149,000/yr to $201,000/yr + equity + benefits

Our salary ranges are determined by role, level, and location. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries at our headquarters in San Francisco, California. Individual pay is determined by work location, job-related skills, experience, and relevant education or training.