Network Security Engineer - Web Applications

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.
In this role, you will strengthen the security posture of our core payments platform while helping shape security practices for AI-assisted software development. This is a hands-on engineering role with broad scope: application security, cloud infrastructure security, and security review of AI/agentic development tooling.
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
Partner with the fractional CISO on risk assessment, remediation planning, and compliance initiatives (including PCI DSS)
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)
~ Familiarity with modern AI-assisted development tools and an interest in their security implications
~ CISSP, OSCP, AWS Security Specialty) are a plus but not required

AWS Security Specialty, CISSP, OSCP, GIAC).
Experience securing payments, ecommerce, or subscription/billing platforms.
Familiarity with global, multi-currency, or tax-calculation systems and their data-sensitivity considerations.
Consistent with FastSprings 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). 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. 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.