Senior Systems Engineer; Top Secret

Revolutional delivers advanced technology solutions and mission support to federal agencies across civilian, health, and national security environments. We apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization to solve complex challenges, enable faster and more secure operations, and drive measurable mission outcomes.

Senior Systems Engineer

Washington, DC (Onsite)

Full‑time

150k - 180k DOE

Top Secret with SCI eligibility - Required

We are seeking a highly experienced and technically proficient Senior Systems Engineer to manage, optimize, and secure critical enterprise infrastructure at the Dept of State in Washington, DC. The ideal candidate will be a hands‑on expert in Windows Server, Active Directory, and virtualization technologies, with a strong focus on automation and cloud adoption. This role requires deep technical troubleshooting skills and the ability to work in a secure, on‑site environment.

• Own Windows Server/Active Directory (AD) Services (GPO, DNS/DHCP, OU design, patching, monitoring) across production enclaves, ensuring high availability and optimal performance.
• Design, implement, and manage enterprise virtualization platforms, primarily using VMware ESXi, for maximum efficiency and resource utilization.
• Automate infrastructure deployment, configuration, and maintenance at scale using Power Shell and other scripting languages (e.g., Python), focusing on IaC (Infrastructure as Code) principles.
• Architect, deploy, and manage Public Key Infrastructure (PKI) solutions and oversee certificate/TLS lifecycle management across the enterprise.
• Perform complex, end-to-end troubleshooting of infrastructure issues, covering networking (TCP/IP, routing, load balancing), identity (Kerberos/LDAP), and application integration.
• Document runbooks, standard operating procedures (SOPs), and change procedures; participate in scheduled change windows and on‑call rotation.
• Contribute to cloud strategy and migration efforts by providing technical expertise for AWS and/or Azure platform integration.
• Ensure systems adhere to stringent security requirements (e.g., STIG/RMF/NIST), especially within federal or classified environments.

• Active Top Secret with SCI (active or cross‑over‑eligible).
• Bachelor's in computer science, Information Technology, or related field — or equivalent practical experience.
• 10+ years Server administration
• Proficiency in Power Shell for complex administration, reporting, and automation.
• Extensive experience with virtualization platforms (ESXi, Hyper‑V, or KVM), including Horizon Remote Assistance.
• Experience with VDI deployments.
• Hands‑on experience with Solarwinds for enterprise IT infrastructure and environment monitoring.
• Experience with Active Directory in production environments.

• Experience managing and configuring MS Exchange environments.
• Deep understanding of networking fundamentals (TCP/IP, DNS, DHCP, routing protocols) and experience with load balancers (e.g., F5/Net Scaler).
• Proven experience in designing and managing PKI and handling the entire certificate lifecycle.
• Excellent written and verbal communication skills, with a proven ability to document complex systems.
• Background in AWS and/or Azure infrastructure, services, and best practices.
• Familiarity with security compliance frameworks and tools for federal/classified environments (STIG, RMF, NIST).
• Experience with enterprise monitoring solutions (e.g., SCOM, Splunk, health sets) is a plus.
• Exposure to Microsoft 365 (M365) technologies, including Hybrid/M365 touchpoints (e.g., Modern Auth, EOP/Defender).

Here At Revolutional We Are Pleased To Have…