Senior Principal Security Engineer

At Anaplan, we are a team of innovators focused on optimizing business decision-making through our leading AI-infused scenario planning and analysis platform so our customers can outpace their competition and the market. What unites Anaplanners across teams and geographies is our collective commitment to our customers’ success and to our Winning Culture. Our customers rank among the who’s who in the Fortune 50. Coca-Cola, LinkedIn, Adobe, LVMH and Bayer are just a few of the 2,400+ global companies who rely on our best-in-class platform. Our Winning Culture is the engine that drives our teams of innovators. We champion diversity of thought and ideas, we behave like leaders regardless of title, we are committed to achieving ambitious goals, and we love celebrating our wins – big and small. Supported by operating principles of being strategy-led, values -based and disciplined in execution, you’ll be inspired, connected, developed and rewarded here. Everything that makes you unique is welcome; join us and let’s build what’s next - together! Anaplan is the leading enterprise decision-making platform, powering the world’s largest enterprises with our proprietary Hyperblock™ technology and cloud infrastructure. We are seeking a Senior Principal Engineer to lead the architectural evolution of our Product Security and Customer Identity & Access Management (CIAM) capabilities. In this role, you will define and execute the technical strategy for secure multi-tenant isolation, modern identity migrations, and secure API-to-API communications across our highly distributed global SaaS platform. Your Impact Security Architecture & Strategy: Lead the long-term technical roadmap for platform-wide security patterns, including multi-tenant isolation, key lifecycle management, secure token issuance (JWT), secrets management, and robust API-to-API communication. Modern Identity Engineering: Design and implement next-generation CIAM solutions and secure backend services (using Java/Kotlin) to migrate from legacy IAM systems to modern, highly scalable identity platforms. Access Control & Policy Enforcement: Architect and operate declarative authorization systems utilizing policy-as-code engines (e.g., Open Policy Agent (OPA) with Rego-based evaluation) for granular, high-throughput access decisions. Platform Standardization: Influence company-wide engineering standards and define best practices for secure-by-default software development. Lead cross-functional collaboration with core engineering teams (including API Gateway, Platform Security, and Infrastructure) to ensure consistent security postures. Technical Leadership & Mentorship: Guide, mentor, and elevate the maturity of the engineering organization, promoting secure coding practices and driving threat-modeling initiatives. Your Qualifications Identity, Access, & Security Protocols Deep IAM/CIAM Expertise: Significant software engineering experience in architecting and operating enterprise-scale Identity and Access Management platforms. Standard Federation Protocols: Expert-level knowledge of OAuth2, OIDC, SAML, and SCIM user provisioning. Hands-on Platform Experience: Comprehensive experience deploying and managing industry-standard IAM platforms (e.g., Auth0, Keycloak, Ping Identity, or Ory). Policy-as-Code: Strong experience implementing and scaling fine-grained authorization policies using Open Policy Agent (OPA), Rego, or similar policy engines. Deep, production-level expertise in architecting and implementing modern access control paradigms, including Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC), and Relationship-Based Access Control (ReBAC), using decoupled Policy-as-Code engines (such as Open Policy Agent/Rego or AWS Cedar) Solid understanding of LDAP/Active Directory integration patterns for enterprise user authentication and centralized group management Strong expertise in modern digital identity concepts, encompassing authentication mechanisms (MFA, SSO,