Senior Linux System Engineer
Adyen is a Dutch financial technology company providing global payment acceptance.
Projects
About Adyen
Adyen N.V. operates a unified financial technology platform for businesses. Its services cover online, in-person, and in-app payments; acquiring; payment methods; risk and authentication; platforms and marketplaces; payouts; card issuing; business accounts; capital; and liquidity management.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will own and improve the identity and access management layer across on-premise and cloud environments. You will define and enforce zero-trust access policies, support core Linux infrastructure, partner on security reviews and audits, and resolve escalated infrastructure issues. You will join an on-call rotation and share IAM and security knowledge with engineers.
Requirements
- 8+ years of Linux systems engineering experience in large-scale, high-availability production environments
- Identity and access management experience
- Knowledge of zero trust, least privilege, just-in-time access, and just-enough access
- Experience with Kubernetes
- Experience with Teleport, SPIFFE/SPIRE, HashiCorp Vault, or equivalent IAM tooling
- Knowledge of PKI, short-lived certificates, and mTLS
- Knowledge of LDAP, SSSD, PAM, SSH, OIDC, OAuth 2.0, and SAML
- Experience with Puppet and Ansible
- Experience with Bash, Python, or Go
- Infrastructure as Code experience
- Ability to explain security decisions to technical and non-technical stakeholders
Responsibilities
- Maintain and improve IAM infrastructure for humans, systems, and AI agents
- Define, refine, and enforce zero-trust access policies and models
- Partner with Security and Compliance on access reviews, audits, and hardening
- Support LDAP, Puppet, Ansible, and mail infrastructure
- Act as an escalation point for access and infrastructure issues
- Participate in an on-call rotation
- Share IAM and security knowledge across engineering