---
title: 'Senior Security Engineer at Finix'
canonical: 'https://feeny.ai/job/senior-security-engineer-finix-san-francisco-ykfamgt4qz3b'
type: 'job'
last_seen: '2026-10-24'
---

# Senior Security Engineer at Finix

- **Company:** Finix
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-22
- **Last confirmed live:** 2026-10-24
- **Apply:** https://jobs.lever.co/finix/a0f31086-a66b-4b6a-8c40-1d1db545bc10

## Job description

## 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

About the Role:

The Engineering organization at Finix owns the delivery and stability of our product end-to-end. As a Security Engineer, you will be responsible for the secure design, implementation, and operation of Finix’s cloud and corporate environments. You will work closely with Engineering, Information Security, Compliance, and IT.

This is an in-office position based in our San Francisco office.

You Will:

- Partner with Engineering on secure design and implementation of new features
- Secure our AWS infrastructure and workstations, and lead security incident response
- Coordinate pentests, vulnerability scanning, and the bug bounty program: triage findings, lead fixes, and drive remediation with engineering
- Secure our CI/CD pipelines and software supply chain
- Own PCI architecture with engineering, including scoping, data handling, and secure SDLC
- Support HSM operations, key exchanges, and key injections
- Build and maintain controls for PCI DSS, SOC 2, and other regulations
- Support audit fieldwork and customer security questionnaires
- Secure internal AI tooling and set guardrails for AI use across the company

You Have:

- 5+ years in security engineering, preferably in cloud-native fintech or payments
- Development experience in Java
- Strong AWS experience, including security services and infrastructure
- Hands-on vulnerability remediation experience
- Incident response experience
- Clear written and verbal communication, including presenting findings and recommendations to technical and non-technical audiences
- Working knowledge of PCI DSS and other regulatory frameworks
- Cryptography and key management experience

Nice to Have:

- AWS Security Specialty, CISSP, or similar certification
- Bug bounty and hands-on pentest experience
- CI/CD pipeline experience
- Infrastructure as code experience (Terraform)
- Experience with IAM and identity providers such as Okta
- Experience with CrowdStrike, Palo Alto Prisma Access, or Sonatype Nexus

----------------------------------------- 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: Security Engineer Level: IC4-IC5 Location: San Francisco, CA Compensation Range: $180,000 - $240,000/year + 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.

## About Finix

## Company Overview
- **One-liner**: Finix provides a payment infrastructure platform that enables businesses to accept, process, and manage payments through a developer-friendly API and white-label tools.
- **Entity Type**: Private (Series C, $204M total funding)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2015
- **Founders**: Richie Serna (CEO)

## Core Business
- Primary industry/industries: Payments infrastructure, Fintech
- Target customers: Fast-growing startups, SaaS platforms, marketplaces, e-commerce businesses, and large-scale enterprises
- Mission or purpose statement: “To build the most accessible financial services ecosystem in history, starting with payments.”

## Products & Services
- **Finix Payment Platform**: An end-to-end, all-in-one payment solution with a universal API and intuitive dashboard. Businesses can accept and embed payments, automate workflows (reconciliation, underwriting, dispute management), manage fees and compliance, and access automated reporting. It supports payments, payouts, recurring billing, risk management, and compliance in a single system.
- **White-Label Tools**: No-code and low-code tools that let businesses embed a seamless, branded payment experience for their own customers.
- **Developer SDKs & APIs**: APIs and SDKs (including for Android) enabling custom payment experiences and integrations with various payment terminal providers.

## Market Standing
- **Valuation**: Not disclosed (private company)
- **Key Metric**: Total Funding of $204M, with a $75M Series C round raised in 2024. Annual revenue estimated at $10M (per LinkedIn estimates).
- **Notable Investors/Partners**: Acrew Capital (led Series C), Leap Global, Lightspeed Venture Partners, Citi Ventures, Tribeca Venture Partners, American Express Ventures, Bain Capital Ventures, Homebrew, Insight Partners, Inspired Capital, Sequoia Capital, Visa, and Cap Table Coalition.
- **Growth Signals**: Processes billions of dollars in transactions annually. Grew headcount by ~17.3% YoY. Serves customers including Lunchbox, AgVend, Clubessential, Passport, Vroom, and Meadow. Has expanded into Canada and operates across the U.S. and Canada.

## Competitive Advantages
- **Full-Stack Acquirer/Processor**: Finix is a full-stack acquirer processor, meaning it provides the underlying processing infrastructure rather than just a gateway, giving customers more control and access to better margins.
- **Customizability & Revenue Optimization**: Offers hundreds of configuration options and a choice of fee settings to optimize payments profitability, including per-payment-method pricing, transaction volume discounts, and accelerated settlement.
- **Developer-First Approach**: A “get started in hours, not days” API with thorough documentation, a test environment, and a team dedicated to helping customers design solutions.
- **High Reliability & Uptime**: Industry-leading 99.999% uptime guarantee.

## Strategic Focus
- **Global Expansion**: Building the “global operating system for fintech,” with a specific focus on removing technical, regulatory, and compliance barriers to expand access to payments and fintech globally.
- **Product Depth**: Continuing to enhance the platform with more automation, reporting tools, and embedded payment capabilities to serve the full lifecycle of payment operations for growing businesses.

## Why Work Here
- **Culture & Mission**: Focused on breaking down barriers in financial services and making technology accessible. Emphasis on “people-first” culture with values like “act like an owner.”
- **Remote/Hybrid/Office Policy**: Offices in San Francisco (SOMA district) and Chicago (West Loop). Many roles are US-Remote. Specific job postings may be location-specific (e.g., Toronto role in the job description).
- **Compensation & Benefits**: Competitive salary and equity. Benefits include generous paid time off, wellness days, flexible health plans (medical, dental, vision), 100% benefits coverage for employees and dependents, life insurance, and inclusive parental leave.
- **Engineering Culture**: Developer-friendly environment; the company’s own product is an API, so engineers work on solving complex payments and infrastructure problems. Emphasis on owning implementation, best practices, and architecture.

## Sources
1. [finix.com](https://finix.com/)
2. [finix.com/about-finix](https://finix.com/about-finix)
3. [finix.com/careers](https://finix.com/careers)
4. [LinkedIn](https://www.linkedin.com/company/finix-payments)
5. [Jobs.lever.co (Android Engineer Job Posting)](https://jobs.lever.co/finix/921435a1-3d41-4e4b-a6d3-aec375880305)

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