Systems Engineer (Linux Administrator) - $216K – $239K

RCT-Systems; Chantilly (VA); Hybrid; USD 150,000 - 190,000; Full time

Benefits offered by this job

Medical, dental, vision

401k vesting

PTO & flexible schedules

$500 annual technology allowance

Job summary

RCT Systems in Chantilly, VA is seeking a senior Linux/infrastructure engineer to support a classified mission environment. The role concentrates on Linux engineering, virtualization, security compliance, and automation across on-prem and cloud data centers.

You will provide Tier 2–4 support, manage VMware vCenter/NSX-T, and maintain AD/DNS/DFS/DHCP while adhering to DISA STIGs. The role spans data centers and AWS, with strong emphasis on documentation and cross-team projects.

Qualifications

• Linux engineering and operations in a classified environment.
• Security clearance: TS/SCI with Polygraph.
• Experience with VMware vCenter and NSX-T.
• Active Directory, DNS, DFS, and DHCP administration.
• Familiarity with DISA STIGs and security compliance.

Responsibilities

• Engineer and support Linux servers/workstations (Debian).
• Provide Tier 2–4 troubleshooting and incident resolution.
• Manage VMware vCenter and NSX-T virtualization infrastructure.
• Support Active Directory, DNS, DFS, and DHCP.
• Maintain systems per DISA STIGs and security requirements.
• Operate across data centers and AWS environments.
• Monitor performance and maintain inventories.
• Handle data-center tasks: hardware, cabling, decommissioning.
• Support virtual servers, desktops, Horizon VDI, and automation.
• Coordinate projects, risks, and schedules.
• Create and present technical documentation for review boards.
• Use ServiceNow for requirements and incident management.

Skills

Linux engineering

TS/SCI with Polygraph

VMware vCenter + NSX-T

Active Directory / DNS / DFS / DHCP

DISA STIGs

Infrastructure operations & maint.

Splunk

Check_MK

McAfee ePO

BitLocker

ServiceNow

Tier 2–4 support

Engineering/project coordination

Tools

VMware Horizon

AWS

Windows AD Tools

Job description

Chantilly, VA This is a senior Linux/infrastructure engineering role supporting a classified mission environment. The primary focus is Linux engineering plus infrastructure operations, virtualization, security compliance, and automation. The team operates a hybrid on-prem/cloud environment with multiple data centers, commercial/Government/custom applications, and a large data lake. The engineer will provide Tier 2–4 support and participate in both day-to-day operations and larger engineering projects.

Key responsibilities

• Engineer and support Linux servers and workstations, particularly Debian.
• Provide Tier 2–4 troubleshooting and incident resolution.
• Manage VMware vCenter and NSX-T virtualization infrastructure.
• Support Active Directory, DNS, DFS, and DHCP.
• Maintain systems according to DISA STIGs and security requirements.
• Operate and maintain infrastructure across data centers and AWS.
• Monitor infrastructure performance/utilization and maintain accurate inventories.
• Handle data-center tasks including hardware installation, cabling, commissioning, decommissioning, and property management.
• Support virtual servers, virtual desktops, VMware Horizon VDI, and automation.
• Coordinate engineering projects, technical risks, implementation conflicts, and schedules.
• Create/present technical documentation to review and approval boards.
• Use ServiceNow for requirements and incident management.

Required Qualifications

• Linux engineering
• TS/SCI with Polygraph
• VMware vCenter + NSX-T
• Active Directory / DNS / DFS / DHCP
• DISA STIGs
• Infrastructure operations & maintenance
• Splunk
• Check_MK
• McAfee ePO
• BitLocker
• ServiceNow
• Tier 2–4 technical support
• Engineering/project coordination

Preferred Qualifications

• Rocky Linux
• Ansible, scripting, and AI integration/automation
• Engineering Lead experience
• Tier 1–4 support
• CIS Benchmarks
• VMware Horizon VDI
• Technical briefings/documentation
• Classified-property and network-encryption-device management

RCT Systems offers

• Competitive benefits package (medical, dental, vision, life insurance)
• Immediate 401k vesting
• Generous PTO and flexible schedules
• $500.00 annual technology allowance

RCT Systems is committed and proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regards to race, color, religion, sex (to include pregnancy and related conditions, sexual orientation, and gender identity), national origin, disability, veteran status, or any other federally protected class.