Systems Engineer– Top Secret/SCI | Quantico, VA

cambridgeinternationalsystems; Quantico (VA); On-site; USD 77,000 - 143,000; Full time

Job summary

Cambridge International Systems, Inc. is seeking a Systems Engineer to support DoD Top Secret/SCI operations at Quantico, VA. The role focuses on virtualization, Windows server administration, and security hardening within a CONUS, full-time capacity.

You will manage VMware environments, Windows identity services, and STIG-based security compliance, collaborating with cross-functional teams to deliver secure enterprise infrastructure.

Qualifications

• Bachelor's degree with 5+ years of related experience; 7+ years may substitute for degree.
• Strong proficiency with VMware vSphere and vSAN.
• Experience in Windows Server enterprise environments and AD/DNS/PKI.

Responsibilities

• Manage and optimize VMware vSphere environments including ESXi, vCenter, and clustering.
• Administer Windows Server workloads including AD, DNS, DHCP, and Group Policy.
• Design and implement hardened configurations using STIGs and CIS Benchmarks.
• Collaborate with systems and network engineers to maintain secure enterprise environments.
• Support virtualization and security compliance across infrastructure.

Skills

VMware vSphere

vSAN

vMotion

HA/DRS

Enterprise virtualization

Education

Bachelor's degree in IT/CS/Systems Eng

Tools

Windows Server

Active Directory

DNS

PKI

LDAP

Job description

Systems Engineer - Top Secret/SCI | Quantico, VA

Cambridge International Systems, Inc.

Join a dynamic global team united by shared values: commitment, integrity, and perseverance. At Cambridge, you'll work alongside top talent worldwide, tackling some of today's most complex and critical challenges in defense and security.

We are currently seeking a Systems Engineer to support operations in Quantico, VA. This is a full-time, CONUS position requiring an active DoD Top Secret/SCI.

The base salary range for this role is $77,000 to $143,000 annually, depending on geographic location and experience. The final offer will be based on relevant experience, skills, internal equity, and market data.

What You’ll Do

Virtualization & Infrastructure Management

• Manage, optimize, and maintain VMware vSphere environments, including ESXi hosts, vCenter Server, resource management, and distributed switching.

• Administer and troubleshoot clustered architectures leveraging vSAN, vMotion, Storage vMotion, DRS, and HA to ensure uninterrupted service availability.
• Monitor and support shared storage platforms (vSAN, iSCSI, NFS, FC) and understand their role in VM mobility and host clustering.

Windows Enterprise Services Administration

• Support virtualized Windows Server workloads, including Active Directory, DNS, DHCP, Group Policy, LDAP, and PKI/Certificate Services.
• Ensure seamless integration between VMware infrastructure and Windows-based identity, authentication, and certificate components.

System Hardening & Security Compliance

• Implement, maintain, and validate STIG-compliant baselines for ESXi hosts, vCenter, and Windows Server systems.
• Utilize VMware Security Configuration Guides, DoD STIGs, CIS Benchmarks, STIG Viewer, and PowerCLI to maintain hardened configurations.
• Perform routine audits and remediation to ensure compliance with organizational and federal security requirements.

Design & Implementation

• Design and deploy virtual infrastructure solutions - including clusters, shared storage, networking, and lifecycle management - following best practices for performance and security.
• Develop templates, golden images, and standard operating procedures to support consistent VM deployments and secure configurations.

Collaboration & Support

• Collaborate with systems, network, and cyber engineers to deliver and maintain reliable, secure enterprise environments.
• Troubleshoot complex virtualization and Windows-based issues.
• Administers, designs, implements, supports, and maintains operations for an organization's VMware environment infrastructure.
• Oversees performance tuning and monitors performance of server systems, including uptime, failover, anti-viral, and anti-spamming.
• Sets up and maintains fault tolerances, and monitors and manages accounts.

What You’ll Bring

Required Qualifications

Education & Experience

• Bachelors' degree in Information Technology, Computer Science, Systems Engineering, or related field with 5+ years of relevant experience required; 7 + years may be substituted in lieu of a degree.

Technical Expertise

• Strong proficiency with VMWare vSphere, vSAN, vMotion, HA/DRS, and enterprise virtualization management.
• Hands-on experience managing Windows Server enterprise environments, including AD, DNS, PKI, Group Policy, and LDAP-backed authentication.
• Familiarity with