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Finix

Senior Frontend Engineer

Hybrid Engineering
Added
2 days ago
Location
Type
Full time
Salary
$180K - $220K

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Related skills

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About Us

Move money. Make money. Finix is a full-stack acquirer processor, empowering businesses of all sizes with flexible, modern payment solutions. Processing billions of dollars annually, Finix enables SaaS, marketplace, and e-commerce platforms to accept payments, manage payouts, and onboard merchants seamlessly. With our no-code, low-code, and developer-friendly tools, businesses can get up and running in hours—not months.

Finix has raised over $175M, including a $75M Series C led by Acrew Capital, with participation from Lightspeed Venture Partners, Leap Global, American Express Ventures, Bain Capital Ventures, Homebrew, Inspired Capital, Sequoia 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 Are:

  • Experienced in balancing rapid feature delivery with code quality, testing, and maintainability
  • Skilled at translating business requirements into scalable technical solutions
  • Proactive in monitoring live systems and troubleshooting production issues
  • Comfortable working with ambiguous requirements and driving clarity through technical discovery
  • Committed to knowledge sharing and building team capabilities through documentation and mentorship

    • You Have:

  • 6+ years of production experience with modern web technologies (HTML, CSS/SCSS, JavaScript/TypeScript)
  • 3+ years of hands-on React development in complex, data-heavy applications
  • Solid experience with state management solutions (Redux, Zustand, Recoil, or similar)
  • Strong background in testing strategies and frameworks
  • Experience building responsive, accessible web applications
  • Understanding of RESTful APIs and modern build tools

    • Bonus if you have:

  • Experience in payments, fintech, fraud prevention, or financial services
  • Backend development experience with Java/Spring, Docker, Kubernetes, or AWS
  • Track record building secure, observable APIs and distributed systems
  • Experience with micro-frontend architectures or component library development

    • Compensation

    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: $180,000/yr to $220,000/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.

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