Adyen is hiring a Senior Product Security Engineer to focus on Customer Identity and Access Management (CIAM). You will architect and implement scalable identity solutions, integrate security into product development, and ensure compliance with privacy regulations.
What You'll Do
- Architect and implement scalable CIAM solutions for both B2C and B2B platforms, integrating identity services such as registration, authentication, authorization, and profile management.
- Design and maintain identity federation and SSO integrations using standards like OAuth 2.0, OIDC, SAML, and SCIM to support customer and partner ecosystems.
- Enhance customer experience by optimizing secure login flows, progressive profiling, MFA/biometric adoption, and adaptive authentication mechanisms.
- Develop and maintain APIs enabling seamless integration of CIAM capabilities across web, mobile, and partner applications.
- Collaborate with security and compliance teams to ensure adherence to privacy regulations (GDPR, CCPA) and implement identity governance and consent management frameworks.
- Automate CIAM infrastructure and workflows, leveraging DevOps practices, IaC (e.g., Terraform), and CI/CD pipelines to ensure reliability and repeatability.
- Monitor and optimize performance and security posture, including threat detection, anomaly response, and continuous improvement of authentication systems.
What We're Looking For
- Deep expertise in modern identity standards (OAuth 2.0, OIDC, SAML, SCIM).
- Proven experience implementing CIAM solutions across consumer and enterprise use cases.
- Hands-on experience with leading CIAM platforms such as Okta, Auth0, Ping Identity, ForgeRock, or Azure AD B2C — including customization, integration, and lifecycle management.
- Strong software engineering and automation background, with proficiency in APIs, RESTful services, scripting (Python, JavaScript, etc.), and Infrastructure as Code (Terraform, CloudFormation).
- Security-first mindset with knowledge of best practices in identity governance, access controls, encryption, MFA, risk-based authentication, and compliance (GDPR, SOC 2, PCI).
- Excellent written and verbal communication skills, with the ability to clearly explain complex identity concepts to both technical and non-technical audiences and collaborate effectively across teams.
Technical Stack
- Identity Standards: OAuth 2.0, OIDC, SAML, SCIM
- Platforms: Okta, Auth0, Ping Identity, ForgeRock, Azure AD B2C
- Development: APIs, RESTful services, Python, JavaScript
- Infrastructure: Terraform, CloudFormation, CI/CD
Team & Environment
You will work effectively with product and engineering teams.
Benefits & Compensation
- Annual salary of £117,000 - £157,000
- 100% subsidized medical coverage, dental and vision for you and your dependents
- Flexible Spending Wallets for tech, food and lifestyle
- Away Days - wellness days to take off work and recharge
- Learning & Development programs
- Parental benefits
- Employee Resource & Community Groups
- Creative tax benefits (subject to applicable law and company policy)
- ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount
- Competitive vacation and holiday schedules
Work Mode
This is a local-country position based in the UK.
Affirm will consider for employment qualified applicants with arrest and conviction records (for U.S. positions that could be performed in Los Angeles or San Francisco).
