Senior Frontend Engineer
Company websitefinix.com (Finix, opens in new tab)
Base salary $160K to $235K
Employer-published annual base salary, USD. Advertised base range in San Francisco, CA
You apply on the employer's own site. Six Figure Work does not handle applications.
- LocationSan Francisco, CA
- WorkplaceOn-site
- Status at last checkSource accepting applications when checked
- Last checked (3 h ago) · observed since
About this job
About Finix
Finix is building the global 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 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
Source: Finix on Lever · View original posting (opens in new tab)
Pay in context
This role's base floor ($160,000) is above 34% of the 4,270 Software Engineering roles in California listed on this site; 105 others list the same floor. Their median floor is $176,050; the middle half runs from $149,100 to $204,000.
Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 7, 2026.
This listingSenior Frontend Engineer$160K to $235K
Senior Software Engineer$150K to $220K
Senior Software Engineer$150K to $220K
Senior Digital Marketing Manager$140K to $190K
Regulatory Counsel, High-Risk$140K to $220K
Compliance Director, High-Risk$140K to $210K
GTM Engineer$140K to $180K
Chart as a table
| Role | Published base |
|---|---|
| Senior Frontend Engineer (this listing) | $160K - $235K |
| Senior Software Engineer | $150K - $220K |
| Senior Software Engineer | $150K - $220K |
| Senior Digital Marketing Manager | $140K - $190K |
| Regulatory Counsel, High-Risk | $140K - $220K |
| Compliance Director, High-Risk | $140K - $210K |
| GTM Engineer | $140K - $180K |
Observed changes
- First observed on the employer's board
- Began meeting the published-salary criteria
- Observed since
- Employer-stated posting date
- 2025-09-24
Where this pay comes from
Location as the employer wrote it: San Francisco
USD 160,000 – 235,000 · per-year-salary · salaryRange
- Method
- Structured pay field published by the employer
- Checked
- Rule set
- us-base-v2
The employer's job board publishes this pay as a dedicated data field. We read the field directly; no interpretation was needed.
What we verified
- The pay figures come from the employer's own listing, quoted exactly above.
- The pay is an annual base salary in US dollars with a minimum of at least $100,000.
- The role was publicly listed on the employer's job board when last checked.
We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.