Senior Security Engineer - Corporate Security

WHO WE ARE Most companies are racing to deploy AI, but very few have the foundation to make it work reliably. Atlan is building that missing layer: the context layer for enterprise AI. We connect the business context behind data so humans and agents can operate with far more accuracy and confidence. With backing from world-class investors including GIC, Insight Partners, Meritech, Peak XV, and Salesforce Ventures, we've earned the trust of most AI-forward enterprises like General Motors, Nasdaq, Workday and Elastic. Come build the infrastructure that AI runs on. WHAT WILL YOU DO? 🤔 We are looking for a Senior Security Engineer to own and drive Corporate Security at Atlan. This is a senior individual contributor role with high autonomy and high visibility. You will be the technical authority for everything that protects our people, endpoints, networks, SaaS ecosystem, and corporate data—the full surface area outside of production infrastructure. The scope is broad and the team is lean. You need to have done this before: deployed and operated the core corporate security stack, made architectural calls on tooling, and built engineering-driven solutions over manual processes. We need someone who can hit the ground running and start delivering from week one, not someone who needs technical guidance on what EDR to pick or how to architect zero trust. You will provide technical direction to the IT Operations team on security matters, partner closely with Infrastructure Security, Detection & Response, GRC, and Legal teams, and report into Security leadership. Because Atlan serves regulated enterprises, the security posture of our corporate environment directly impacts customer trust, compliance audits, and deal velocity. - Corporate Security Architecture & Engineering - Design, build, and operate the security controls for Atlan’s corporate environment: macOS fleet, SaaS applications, corporate identities (Okta/Google Workspace), email, endpoints, and network edge - Evaluat