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Agile Defense

Cybersecurity and IT services for government

Senior Systems Engineer

System AdministrationConfirmed live in the last 24 hours
Full-timeShaw AFB, SC, USA$90k - $100k /yr

About the Job

Requirements

  • Professional-level proficiency in VMware vSphere, Microsoft enterprise services including Active Directory and Exchange, and Cisco UCS.
  • Familiarity with cloud platforms such as Kubernetes, Azure, and AWS, and virtual desktop technologies such as Citrix or VMware Horizon.
  • A strong track record in similar roles, ability to deliver complex technical projects, and ability to perform effectively without extensive ramp-up or training.
  • A Master's degree in Computer Science or a related area and 4+ years of IT domain knowledge, or a Bachelor's degree in Computer Science or a related area and 8+ years of IT domain knowledge.
  • DoD 8140 DCWF 651 Advanced Level certification.
  • Cisco Certified Network Associate (CCNA), Microsoft Certified Solutions Expert (MCSE), or equivalent certification.
  • Must be a U.S. citizen and possess at least an active Secret security clearance.

Responsibilities

  • Provide engineering support for enterprise networks, systems, and infrastructure in support of the U.S. Air Force, delivering advanced technical expertise and operations and maintenance activities for mission-critical environments.
  • Direct host patching, maintenance, and major version upgrades across multi-cluster ESXi and vCenter environments.
  • Fine-tune VMware Distributed Resource Scheduler (DRS) rules and High Availability (HA) admission controls to maximize compute density and hardware efficiency.
  • Design and govern vSphere Distributed Switch (vDS), including uplink teaming policies, network failover teaming policies, and VLAN tagging integrity.
  • Architect and audit dedicated, non-routed Layer 2 storage fabrics (SAN, iSCSI, and NFS), ensuring there are no Layer 3 switched virtual interfaces or gateway routing hops.
  • Verify consistent Jumbo Frame (9000/9216) MTU settings across VMkernel interfaces, vNICs, fabric interconnects, physical switches, and storage targets.
  • Author, validate, and maintain unified UCS server profile templates across B-Series blade rack servers to eliminate configuration drift.
  • Enforce zero-trust identity baselines, privileged access workstation principles, and DISA STIG compliance across enterprise forests.
  • Implement tiered administrative modules, eliminate insecure credential exposure, and audit sensitive privilege delegation paths.
  • Establish engineering documentation standards, perform root-cause analysis, and develop detailed infrastructure topology diagrams and standard operating procedures.
  • Drive technical engineering forums and deliver regular executive briefings on platform health and enterprise system modernization initiatives.

About the Company

Agile Defense

Cybersecurity and IT services for government

Agile Defense provides IT and cybersecurity services to the U.S. Federal Government, including digital transformation, IT modernization, and a Virtual Security Operations Center (VSOC) to defend against cyber threats. Its services support national security and civilian missions across federal agencies, delivered through various contract vehicles. The company expands its capabilities through acquisitions (IntelliBridge and XOR Security) and focuses on AI-enabled workforce transformation and enterprise IT to enhance government operations. Unlike many suppliers, Agile Defense emphasizes a government-focused portfolio with a multidimensional VSOC and AI-driven workforce upgrades, positioning itself to meet federal security and modernization needs. The goal is to help federal agencies protect data and systems, modernize IT infrastructure, and improve cyber resilience across national security and civilian missions.

Company size
1,001-5,000
Company stage
Acquired
Total funding
Not listed
Headquarters
Reston, VA
Founded
1998

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