Senior Security Engineer

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.