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# Senior Systems Engineer

- **Company:** 99999 Consulting Llc
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Salary:** $140,000.0 - $220,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Systems Engineering, Linux, Linux Servers, Windows Servers, Public Key Infrastructure, Scripting, Containerization, Kubernetes, Docker
- **Published:** July 24, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9056016/senior-systems-engineer

## About the Role

* Deep expertise in Microsoft Core On-prem technologies (Windows Server, AD, Exchange, PKI, Group Policy).
 * Experience with Linux server management, scripting/automation.
 * Familiarity with container orchestration (Kubernetes, Docker) in hybrid environments.
 * Security, networking, monitoring, and backup/DR integration relevant to enterprise infrastructure., * 8+ years systems engineering experience in secure/cleared environments.
 * Active TS
 * Professional certification required; Expert-level preferred.
 * Demonstrated experience with progressive responsibilities indicative of a senior engineer.
 * DoD 8140 compliance required
 * The likely salary range for this position is $140,000-$220,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, and contractual agreements and could fall outside of this range.

## Description

* Balance among architecture, operations, and hands-on engineering depending on project demands.
 * Non-repetitive, impactful efforts providing daily challenges with no long-term boredom.
 * Ownership of systems and projects from planning through lifecycle execution.
 * Generally high OPTEMPO; individuals must self-manage workload based on communicated priorities.

What You'll Do

 * Design, deploy, maintain, and troubleshoot enterprise Windows infrastructure (Active Directory, Group Policy, PKI, etc.).
 * Manage identity and access systems, certificate authorities, and PKI infrastructure.
 * Depending on specializations: Linux systems, containerized workloads (Kubernetes, Docker), etc.
 * Collaborate with cross-functional teams on architecture, security, and operational improvements.
 * Lead root cause analysis for system outages or performance issues.
 * Mentor less-senior engineers and technicians.


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