> Markdown version of [/jobs/ext/3006885-senior-systems-engineer](https://www.wearedevelopers.com/jobs/ext/3006885-senior-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Systems Engineer - **Company:** CCS, LLC - **Location:** Washington, DC, United States - **Experience:** Expert - **Salary:** $165,000.0 - $180,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Systems Engineering, Linux, Linux Servers, Windows Servers, Public Key Infrastructure, Scripting, Containerization, Kubernetes, Docker - **Published:** September 19, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9174001/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. * Location: On-site at Joint Base Anacostia-Bolling (JBAB) ## Description 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.