---
title: 'Sr. Security Engineer at FastSpring'
canonical: 'https://feeny.ai/job/sr-security-engineer-fastspring-united-states-1w99fm8srj33'
type: 'job'
last_seen: '2026-09-09'
---

# Sr. Security Engineer at FastSpring

- **Company:** FastSpring
- **Location:** United States
- **Compensation:** $155k–$187k
- **Work type:** remote
- **Posted:** 2026-08-19
- **Last confirmed live:** 2026-09-09
- **Apply:** https://job-boards.greenhouse.io/fastspring/jobs/6146712004

## Job description

About FastSpring:

FastSpring is how AI, SaaS, gaming, software, and digital product companies sell online in more places around the world. We handle all payment needs from checkout to taxes so you can go farther faster.

Founded in 2005, we are a privately owned company headquartered in Santa Barbara with offices in Amsterdam, Austin, Belfast, Dublin, Halifax, and Singapore.

Sr. Security Engineer

Position Overview:

We are seeking a Sr. Security Engineer to join our Agentic Experience group, reporting to the Principal Engineer, Agentic Development. In this role, you will strengthen the security posture of our core payments platform while helping shape security practices for AI-assisted software development. You will work closely with our Agentic Experience group and our CISO, with visibility to executive leadership. This is a hands-on engineering role with broad scope: application security, cloud infrastructure security, and security review of AI/agentic development tooling.

Responsibilities & Goals:

- Identify, prioritize, and remediate vulnerabilities across our Java-based platform and AWS infrastructure
- Drive infrastructure security improvements, including IAM policy refinement, instance metadata protections, and network egress controls
- Conduct security reviews of AI-assisted development pipelines, tool integrations, and agent-accessible services
- Develop and maintain secure development standards, patterns, and guardrails for engineering teams
- Partner with the fractional CISO on risk assessment, remediation planning, and compliance initiatives (including PCI DSS)
- Contribute to incident response readiness and security monitoring improvements
- Communicate security priorities and progress clearly to technical and executive stakeholders

Experience & Qualifications:

- 7+ years of hands-on security engineering experience (application security, cloud security, or infrastructure security)
- Strong experience with AWS security services and primitives (IAM, VPC networking, secrets management)
- Experience working in and securing large production codebases; JVM ecosystem experience preferred
- Familiarity with modern AI-assisted development tools and an interest in their security implications
- Strong prioritization and communication skills; ability to advocate for security investments with stakeholders
- Experience in payments, fintech, or other regulated environments is a plus
- Relevant certifications (e.g., CISSP, OSCP, AWS Security Specialty) are a plus but not required

## Nice to Have

- Security certifications (e.g., AWS Security Specialty, CISSP, OSCP, GIAC).
- Experience securing payments, ecommerce, or subscription/billing platforms.
- Experience with secure SDLC practices and integrating security tooling (SAST/DAST/SCA) into CI/CD.
- Familiarity with global, multi-currency, or tax-calculation systems and their data-sensitivity considerations.

Consistent with FastSpring's values and applicable law, we provide the following information to promote pay transparency and equity. The base pay range below represents a good faith estimate of the low and high end base pay range for the listed position. This role may be eligible for the corporate bonus plan (or, if a sales role, a commission plan as defined in the sales incentive plan document). In addition, FastSpring provides a variety of benefits to employees. Estimated Base Pay Range $155,000—$187,000 USD

About the Company:

FastSpring is an EQUAL EMPLOYMENT OPPORTUNITY/AFFIRMATIVE ACTION employer. Candidates are considered for employment with FastSpring without regard to their race, color, religion, national origin, age, sex, gender, pregnancy, disability, sexual orientation, gender identity, genetic information, military status, veteran status (specifically status as a disabled veteran, special disabled veteran, Vietnam Era veteran, recently separated veteran, armed forces service medal veteran, or other protected veteran) or other classification protected by applicable federal, state or local law.

AI Transparency Statement:

FastSpring may utilize artificial intelligence (AI) or automated tools during portions of the recruitment process to assist with operational and administrative activities, including candidate communications, scheduling, application organization, and interview documentation. These tools are designed to support efficiency and consistency within the hiring process. AI systems are not used as the sole determinant of hiring outcomes, and all employment decisions are made by qualified human reviewers. We are committed to responsible and fair hiring practices and continue to evaluate our use of technology accordingly.

## About FastSpring

## Company Overview
- **One-liner**: FastSpring is the leading merchant of record platform for global digital product companies, handling payments, subscriptions, tax compliance, and fraud prevention.
- **Entity Type**: Private (backed by Accel-KKR)
- **Headquarters**: Santa Barbara, California, USA
- **Founded**: 2005
- **Founders**: Not publicly disclosed

## Core Business
- Primary industry/industries: Digital commerce, payments, subscription management, tax compliance
- Target customers: B2B digital product companies (software, SaaS, gaming, digital content creators) ranging from startups to enterprises
- Mission or purpose: “Making selling digital products online easy, stress-free, and more successful for companies around the world.”

## Products & Services
- **Global Payments & Checkout**: A branded, localized checkout experience supporting 35+ currencies and 200+ regions to maximize conversion.
- **Subscription Management & Billing**: Tools to manage recurring subscriptions, billing cycles, and dunning.
- **Merchant of Record (MoR)**: FastSpring acts as the seller of record, handling all VAT, sales tax, and compliance burdens.
- **Tax Compliance**: Automated tax calculation, filing, and remittance across multiple jurisdictions.
- **Fraud Prevention**: Proactive detection of payment fraud, spam content, and irregular chargebacks.
- **Reporting & Analytics**: Dashboards and data insights to track transactions, revenue, and customer behavior.
- **Affiliate Marketing**: A global network of partners to help grow revenue.
- **Interactive Quotes**: Real-time, customizable quotes with e-signatures and CRM integrations.
- **Digital Invoicing**: Generate and send invoices directly from the platform.
- **Developer Tools**: REST APIs, JavaScript libraries, configurable webhooks, and extensive documentation for customization.
- **Gaming Solutions**: Tailored payment and compliance features for game publishers and digital content sellers.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Key Metric**: Total funding not publicly available; annual revenue not disclosed, but the platform processes over $1 billion in global transactions per year.
- **Notable Investors/Partners**: Accel-KKR (technology-focused private equity firm) is the investment partner.
- **Growth Signals**: 
  - Offices in Santa Barbara, Halifax, Amsterdam, Belfast, Dublin, Singapore, and Austin.
  - Employee count: ~135 (per Built In) with active hiring in engineering, sales, product, and finance.
  - “FastSpring Friday” half days, education reimbursement, and robust benefits reflect a scaling organization.

## Competitive Advantages
- **Full Merchant of Record Service**: FastSpring assumes legal and compliance responsibility for global sales, removing a massive pain point for digital sellers.
- **Deep Localization**: Supports 35+ currencies, 21+ languages, and tax filing in virtually any country – a significant moat for cross-border commerce.
- **Developer-First Approach**: REST APIs, webhooks, and thorough documentation make integration easy without sacrificing control.
- **Breadth of Features**: Combines payments, subscriptions, tax, fraud, affiliate marketing, and analytics in one platform, reducing the need for multiple integrations.

## Strategic Focus
- **Global Expansion**: Continuously adding regions and currencies to serve more markets.
- **Product Innovation**: Enhancing developer tools, subscription management, and AI-driven fraud prevention.
- **Enterprise Scalability**: Targeting larger digital product companies with interactive quotes, B2B billing, and compliance capabilities.
- **Partnership Ecosystem**: Growing the affiliate network and deepening integration with CRM and ERP systems.

## Why Work Here
- **Culture Highlights**: Values include “Act With Urgency,” “Seek to Understand,” and “Make a Difference.” The team is described as capable, diverse, and creative.
- **Remote/Hybrid Policy**: Many roles (e.g., Senior Software Engineer, VP Product) are remote within the US; some positions require in-office presence in Dublin, Singapore, or Santa Barbara. Overall flexible.
- **Notable Benefits**:
  - 401(k) match
  - Robust healthcare coverage (medical, dental, vision)
  - Flexible PTO
  - Bi-weekly “FastSpring Friday” half days
  - Work-from-home essentials reimbursement
  - Ongoing learning opportunities + education reimbursement
  - Paid parental leave
  - Volunteering opportunities + donation matching
  - Quarterly employee events
- **Engineering Culture**: Strong emphasis on developer experience, with dedicated developer support and modern tools (APIs, webhooks). “Made for developers” is a core tagline.

## Sources
1. [fastspring.com/company/careers](https://fastspring.com/company/careers/)
2. [fastspring.com/company](https://fastspring.com/company/)
3. [fastspring.com](https://fastspring.com/)
4. [builtin.com/company/fastspring](https://builtin.com/company/fastspring)
5. [job-boards.greenhouse.io/fastspring](http://job-boards.greenhouse.io/fastspring)

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