Systems Engineering - Defense

Cambridge International Systems, Inc.

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 VMWare Systems Administrator to support operations in Quantico, VA . This is a full-time, CONUS position requiring an active DoD Top Secret/SCI clearance.

The final offer will be based on relevant experience, skills, internal equity, and market data.

As a VMWare Systems Administrator , you will play a critical role in Quantico, VA, that serve U.This role falls under Virtual Systems Administrator in our ERI compensation structure. This role requires broad expertise across VMware technologies as well as Windows-based enterprise services to ensure stable, secure, and highly available environments.

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

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

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

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

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 maintainfault tolerances, and monitors and manage accounts

Bachelors ‘s degree in Information Technology, Computer Science, Systems Engineering, or related field with 5+ years of relevant experience required; 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 networking concepts (VLANs, routing, distributed switching, firewall rules) and storage architectures.

Experience applying STIGs, CIS Benchmarks, or other hardening frameworks to both VMWare and Windows systems.

VMWare Certified Professional (VCP) required; VMWare Certified Advanced Professional (VCAP) preferred.

Windows certifications (e.g., Must have a current and active DoD Top Secret/SCI security clearance

Experience with scripting or automation tools (PowerCLI, PowerShell, Python)

Travel & Passport

Up to 10% travel; some overnight stays possible.

Periods of prolonged sitting and/or standing, including desk-based computer work.

Travel between work locations, including company offices, customer sites, and government installations.

Occasional extended work hours, including evenings or weekends, as needed.

Transport and use of work equipment, such as laptops and job-related tools, during site visits.

Work is performed in a secure facility where personal electronic devices (including Bluetooth- or Wi-Fi-enabled devices) may be restricted.

Communication with team members, customers, and stakeholders through verbal and written methods.

Compliance with vaccination and medical requirements for TDY/OCONUS roles as per Vaccine Recommendations by AOR | Health.mil.

Alcohol and Drug screening may be required for federal contract compliance

Medical, dental, vision, life, accident, and critical illness insurance

401(k) immediate vesting and match

Paid time off and company holidays

Generous tuition & training support

Relocation assistance

Sign-on and performance-based bonuses

Access to Tickets at Work, EAP, wellness initiatives, and more

Referrals are welcome—both employees and non-employees may qualify for a bonus.

About Cambridge International Systems

Applicants and employees are considered for positions and are evaluated without regard to any protected status under applicable law or other similar factors that are not job-related. We provide reasonable accommodation for qualified individuals with disabilities in accordance with federal, state, and local law. If you require a reasonable accommodation to participate in the application process or to perform the essential functions of the position, please contact our Recruiting Team at View email address on click.appcast.io.