Job Requirements
Annapolis Junction, MD
Top Secret/SCI CI Polygraph
Career Level not specified
Salary not specified
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Job Description
Linux OS Engineer
Responsibilities & Qualifications:
Responsibilities:
The Linux OS Engineer is expected to be able to accomplish the following:
Required Qualifications:
Desired Qualifications:
Responsibilities & Qualifications:
Responsibilities:
The Linux OS Engineer is expected to be able to accomplish the following:
- Platform Engineering & Operations
- Engineer, deploy, and administer RHEL/CentOS/Rocky and Ubuntu servers (physical and virtual) across dev/test/prod.
- Implement standard OS baselines, golden images, and immutable patterns (e.g., image pipelines, templates, kickstart/preseed, cloud-init).
- Manage patching and kernel updates with maintenance windows and rollback plans; validate health post-change.
- Configuration Management & Automation
- Build and maintain automation using Ansible, Bash, and Python to enforce configuration drift control and speed delivery.
- Integrate configuration policies with CI/CD workflows and version control; write idempotent playbooks/roles.
- Security & Compliance
- Apply and maintain DoD STIG/hardening controls; remediate findings from vulnerability scans; maintain audit artifacts.
- Implement/validate FIPS, SELinux, disk encryption, log forwarding, and secure remote access; support ATO evidence.
- Reliability, Monitoring & Performance
- Design and operate logging/metrics/alerting (e.g., journald/rsyslog, auditd, Prometheus/Grafana/ELK) with actionable SLOs.
- Troubleshoot OS, storage, and network performance (I/O, CPU, memory, TCP/IP) using system profiling tools.
- High Availability & Continuity
- Support clustering and HA patterns (Pacemaker/Corosync, systemd units, load balancers); document and test DR/backup restore.
- Collaboration & Support
- Provide Tier 3 escalation; create runbooks/SOPs; participate in on-call rotations as needed.
- Partner closely with cybersecurity, network, storage, virtualization, and application owners to deliver end-to-end outcomes.
Required Qualifications:
- Active TS/SCI + CI Poly clearance
- 5-7 years of professional experience administering Linux in enterprise or government environments (or equivalent combination of education/experience suitable for mid level).
- One of the following DoD 8570/CS-NET-451 certifications:
- Security+ (CE)
- RHCSA/RHCE
- CKA
- ITIL® Foundation
- Strong proficiency with RHEL-family and Debian/Ubuntu administration, system services, and package managers (dnf/yum/apt).
- Hands-on with Ansible and scripting (Bash, Python) for automation and compliance.
- Demonstrated experience applying STIG/hardening and working within secure change-controlled environments.
- Solid troubleshooting across compute, network, and storage layers; familiarity with virtualization (VMware/KVM) and ticketing/ITSM workflows.
- Ability to create and maintain SOPs, runbooks, and architecture diagrams supporting audits and operations.
Desired Qualifications:
- Experience with RHEL Satellite/Foreman, Kickstart, IdM/FreeIPA/AD integration, and secrets management (e.g., HashiCorp Vault).
- Exposure to container runtimes (Podman/Docker), Kubernetes (RKE/AKS/Openshift), and hardened container images.
- Infrastructure-as-Code (Terraform), cloud (AWS/Azure/Gov zones), and registry/artifact management.
- Monitoring stacks (Prometheus/Grafana, ELK/OpenSearch) and SIEM integrations.
- SSCP
- CySA+
- GSEC
- CASP+
- CISSP
- Red Hat Ansible Automation certification
- Terraform Associate
- Kubernetes certification
group id: 91130387
