Kubernetes Security Engineer

Capgemini • Chicago, IL

9d

About The Position

We’re seeking a Kubernetes Security Engineer to help design and operate security‑first platforms for complex, multi‑tenant environments. In this role, you’ll architect and deploy hardened Kubernetes clusters across diverse hardware architectures, applying advanced Linux security controls, hardware‑rooted trust, and least‑privilege principles to protect critical workloads. You’ll work hands‑on with modern container runtimes, supply‑chain security, and runtime threat detection, collaborating closely with infrastructure, SRE, and security teams to build resilient systems that minimize risk and scale securely.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related technical field, with 8–10 years of experience in infrastructure, security, or systems engineering.
• Deep expertise in Kubernetes internals, including cluster hardening, multi-tenant isolation, and security architecture.
• Advanced proficiency in Linux security features such as SELinux, AppArmor, seccomp, and kernel-level protections.
• Hands-on experience with TPM for secure boot, attestation, and integration with HSM/KMS for cryptographic operations and secrets management.
• Strong understanding of Pod Security frameworks (PodSecurityStandards, OPA, Gatekeeper, Kyverno) and implementation of RBAC, NetworkPolicies, and workload isolation at scale.
• Familiarity with container runtimes (containerd, CRI-O, gVisor, Kata) and their security implications in hybrid environments.
• Experience with runtime and supply chain security tools and frameworks, including Falco, Cilium Tetragon, cosign, Notary, SLSA, and NIST 800-190.
• Knowledge of confidential computing (TEE, SGX, SEV), air-gapped deployments, and hardened Linux distributions like Flatcar and Bottlerocket.

Responsibilities

• Architect and deploy security-first Kubernetes cluster configurations across diverse hardware platforms, including x86, ARM, and accelerators.
• Enforce Linux security modules (SELinux, AppArmor) and sandboxing techniques (seccomp, gVisor, Kata) to protect workloads and system services.
• Integrate TPM for secure boot and attestation, ensuring hardware and OS integrity, and support cryptographic operations with HSM/KMS systems.
• Design multi-tenant isolation strategies using namespaces, node pools, and hardware partitioning to prevent lateral movement and reduce blast radius.
• Apply least-privilege policies using RBAC, PodSecurityStandards, NetworkPolicies, and resource constraints to secure workload execution and mitigate denial-of-service risks.
• Harden Kubernetes components (API server, etcd, kubelet) using CIS and NSA benchmarks, and implement kernel-level protections like seccomp-bpf and IMA/EVM.
• Secure workload secrets using TPM-backed storage and tools like SealedSecrets, HashiCorp Vault, or SOPS for safe distribution and access control.
• Strengthen supply chain security through image signing (cosign, Notary), SBOM scanning, and CI/CD vulnerability management.
• Monitor runtime behavior with tools like Falco and Cilium Tetragon, and collaborate with SRE and Security teams to develop incident response runbooks and conduct breach simulation drills.

Benefits

• Paid time off based on employee grade (A-F), defined by policy: Vacation: 12-25 days, depending on grade, Company paid holidays, Personal Days, Sick Leave
• Medical, dental, and vision coverage (or provincial healthcare coordination in Canada)
• Retirement savings plans (e.g., 401(k) in the U.S., RRSP in Canada)
• Life and disability insurance
• Employee assistance programs
• Other benefits as provided by local policy and eligibility

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees