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This advert was matched to Senior Engineer II, a job title CoreWeave, Inc. has itself sponsored.
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The role, as CoreWeave, Inc. describes it
CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at www.coreweave.com .
What You’ll Do: The Enterprise Security team at CoreWeave is responsible for securing how our people work every day—identity, endpoints, networks, and SaaS—so the company can move fast without compromising safety. This team owns the controls, guardrails, and automation that keep our workforce, contractors, and critical business applications protected in a modern, cloud-native environment.
If you’re excited about zero trust , phishing-resistant MFA , and building secure-by-default experiences that actually make people more productive, this is the team to join.
About the Role: As a Senior Security Engineer, Enterprise Security , you’ll design and ship the security controls that underpin CoreWeave’s workforce and enterprise stack. You’ll lead initiatives across identity, access management, device and endpoint security, and SaaS security—partnering closely with IT Engineering, Endpoint, Network, and other security teams.
Your day-to-day will blend hands-on engineering (writing code, building integrations, tuning controls) with architecture and program ownership (setting standards, defining patterns, and driving adoption across teams). You’ll be responsible for turning high-level objectives—like “implement zero trust for workforce access” or “deploy phishing-resistant MFA at scale”—into concrete designs, automation, and measurable risk reduction.
In this role, you will:
Engineer modern identity and access controls
- Define security requirements and prototype controls for workforce identity (e.g., Okta/Entra), including SSO, MFA, conditional access, and SCIM; validate controls with IT, which owns deployment and operations.
- Define phishing-resistant MFA requirements for high-value accounts and critical access paths (e.g., FIDO2/WebAuthn, hardware keys); assess coverage and exceptions. Prove out technical efficacy through engineering efforts (eg, PoC, back end integrations, adversarial testing).
- Define least-privilege RBAC/IAM patterns, including roles, entitlements, JIT access, and approvals; partner with IT to close gaps and automate privilege reduction and access revocation.
Implement zero trust for workforce and enterprise access
- Design and deploy controls that combine user identity, device posture, network context, and application sensitivity to enforce least-privilege access.
- Partner with Network and Infrastructure teams to integrate mTLS, service identity, and policy-based access into internal services and admin interfaces.
- Help transition from legacy perimeter models to zero trust network access (ZTNA) patterns for employees, contractors, and third parties.
Secure SaaS and collaboration platforms
- Evaluate, onboard, and harden SaaS applications (Google Workspace, Microsoft 365, Slack, HRIS, ticketing, and other business apps) to align with enterprise security policies.
- Implement and tune controls such as SCIM provisioning, data access policies, DLP, sharing controls, and audit logging across the SaaS estate.
- Partner with business and IT owners to ensure new SaaS applications meet baseline security standards before adoption.
Harden endpoints and the extended workforce
- Collaborate with Endpoint/IT teams to define and enforce baseline configurations for laptops, workstations, and other managed devices via MDM and EDR.
- Design secure patterns for contractor and vendor access, including device requirements, identity separation, and time-bound access.
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