Senior Security Engineer, PKI & Secrets · CoreWeave

Sat, 25 Apr 2026 12:09:33 GMT
Engineering

CoreWeave · Livingston, NJ / New York, NY / Sunnyvale, CA / Bellevue, WA/ San Francisco, CA, · $165,000 to $242,000 · hybrid

As a Senior Security Engineer on the PKI & Secrets team, you will shape how CoreWeave manages cryptographic infrastructure across its global fleet. You'll design and operate PKI hierarchies, secrets management platforms, HSM infrastructure, and key management systems; working hands-on with engineering teams to integrate these capabilities into their services and workflows.

Key responsibilities include:

Contributing to the design, implementation, and operation of CoreWeave's PKI infrastructure, including CA hierarchies, issuance policies, certificate lifecycle management, and trust distribution across Kubernetes clusters and bare-metal hosts.

Managing and evolving secrets management platforms, including access policies, secret lifecycle governance, and integration patterns using External Secrets Operator and cert-manager.

Operating and scaling HSM infrastructure, including PKCS#11 integration, key ceremony procedures, and high-availability designs backing our certificate authorities and signing services.

Contributing to the design of key management and data encryption solutions for internal and customer-facing use cases, including envelope encryption and KMS API design.

Delivering PKI-based solutions supporting workload identity, mutual TLS, and hardware attestation.

Maintaining and extending code signing infrastructure for firmware images, UEFI binaries, container images, and application binaries.

Developing and enforcing cryptographic best practices and policies, and contributing to post-quantum cryptography readiness.

Requirements include:

5+ years of experience in security engineering or infrastructure engineering.

Strong understanding of PKI concepts including CA hierarchies, certificate profiles, issuance policies, revocation, and trust distribution.

Hands-on experience operating HashiCorp Vault or similar secrets management platforms in production.

Experience with hardware security modules (HSMs), PKCS#11 interfaces, and key ceremony procedures.

Solid understanding of applied cryptography: symmetric and asymmetric algorithms, digital signatures, envelope encryption, and TLS.

Proficiency in Go, Python, or similar languages, with the ability to build production tooling and automation.

Experience with Kubernetes, including cert-manager, trust-manager, or External Secrets Operator.

Demonstrated ability to drive cross-functional initiatives across infrastructure, platform, and product teams.

Preferred qualifications include experience operating PKI backed by HSMs in a cloud provider or hyperscaler environment, familiarity with code signing workflows, and understanding of hardware attestation and workload identity.