IAT Level II (or higher) certification, such as Security+, CySA+, SSCP, CCNA Security, or CISSP (or Associate).-Ability to obtain and maintain Privileged User Account (PUA) certification.-Experience with Kubernetes and container platforms such as EKS, Rancher, or RKE2.-Experience with one or more of the following: Elasticsearch, Keycloak, Redis, Strimzi.-Experience hardening databases to comply with NIST 800-53 security controls.-Strong knowledge of Linux system administration.-Proficiency in scripting for automation and operational tooling (UNIX shell, Perl, or similar).-Experience with Helm Chart templating.-Experience with ArgoCD-Experience supporting DIA, NDOC, and/or D3P. Our client is seeking a TS/SCI + CI poly cleared Elastic Search Engineer to join a high‑energy team building and deploying a cutting‑edge technology stack in support of the DIA‑NMEC (National Media Exploitation Center) DOMEX Technology Platform (DTP).