Core4ce is seeking a DevSecOps Engineer to join a large Department of Defense (DoD) program. This role requires deep expertise in containerization, cloud, and secure software delivery, with a strong focus on managing and optimizing GitLab implementations. You will combine advanced engineering and architecture skills to streamline development workflows, enforce security policies, and enable continuous delivery.

This is a full-time, remote position.

Core Responsibilities and Secure Delivery Mandate

The Engineer will be responsible for maintaining the container orchestration platforms and integrating security controls throughout the deployment lifecycle, ensuring strict adherence to DoD accreditation requirements.

• Orchestration and Hardening: Engineer and maintain existing container orchestration platforms (Rancher, OpenShift, Kubernetes), ensuring high availability, scalability, and security compliance.
• GitLab Integration: Sustain and optimize Kubernetes clusters, integrating GitLab with key supporting tools: Harbor, ArgoCD, Keycloak, and Red Hat Advanced Cluster Security (Stackrox).
• Security and Compliance: Implement and maintain security procedures, DevSecOps guardrails, and compliance controls aligned with DoD accreditation requirements. Ensure rigorous application of cybersecurity and information assurance principles.
• Architecture Support: Support system architecture design, implementation, and modernization initiatives in Linux environments.
• Operations: Manage accounts, network rights, and system resources for optimal performance and troubleshoot infrastructure and interoperability challenges across distributed systems.

Required Experience and Technical Qualifications

Candidates must possess an active Secret Clearance (or the ability to obtain one) and mandatory experience managing GitLab and maintaining hardened Kubernetes clusters, specifically within the DoD context.

• Required Experience:
  • 3–5 years managing GitLab implementations, including CI/CD pipeline creation, runner management, repository configuration, and security policy enforcement.
  • 3+ years designing, deploying, and maintaining hardened Kubernetes clusters and orchestration platforms (Rancher, OpenShift).
  • 4+ years administering and hardening Linux Operating Systems, preferably Red Hat Enterprise Linux.
  • 2+ years with Amazon AWS services (EC2, S3, EBS, Load Balancers, and RDS).
• Required Clearance/Certification:
  • Active Secret Clearance or ability to obtain one.
  • Ability to obtain Certified Kubernetes Administrator (CKA) certification within 6 months.
• Tooling Experience:
  • Experience with Kubernetes-related tools: GitLab, Harbor, ArgoCD, Red Hat Advanced Cluster Security (Stackrox), Keycloak.
  • Familiarity with operating within DoD networks, access controls, and security/accreditation requirements.
• Preferred Experience (Bonus):
  • Experience with GitLab, CI/CD, and RKE2.
  • Experience in Agile DevSecOps environments.