Senior Systems Engineer (TS/SCI) - Windows, AD & Cloud

Revolutional, LLC; Washington; On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Traditional and HSA‑eligible medical

100% employer‑paid dental and vision

100% employer‑sponsored STD, LTD, and

5% 401(k) company matching

Flexible schedules and teleworking

Paid holidays and PTO

Parental leave

Professional development

Job summary

Revolutional, LLC is seeking a Senior Systems Engineer to manage, optimize, and secure critical enterprise infrastructure at the Dept of State in Washington, DC. You will lead Windows Server, Active Directory, and virtualization efforts with a focus on automation and cloud adoption.

Ideal candidates will have Top Secret with SCI eligibility, 10+ years of server administration experience, and strong troubleshooting skills for secure, on-site environments.

Qualifications

• 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 PowerShell for complex administration, reporting, and automation.
• Extensive experience with virtualization platforms (ESXi, Hyper‑V, or KVM), including deployment, maintenance, and performance tuning.
• Experience with Active Directory in production environments.

Responsibilities

• 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 PowerShell 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.

Skills

Windows Server

Active Directory

Automation

Scripting (PowerShell, Python)

Virtualization

Cloud adoption

Security & STIG/NIST

Education

Bachelor's degree in CS/IT or related field

Equivalent practical experience

Tools

VMware ESXi

PowerShell

Python

PKI/TLS management

Job description

Revolutional, LLC is seeking a Senior Systems Engineer to manage, optimize, and secure critical enterprise infrastructure at the Dept of State in Washington, DC. You will lead Windows Server, Active Directory, and virtualization efforts with a focus on automation and cloud adoption.

Ideal candidates will have Top Secret with SCI eligibility, 10+ years of server administration experience, and strong troubleshooting skills for secure, on-site environments.