Harmonia Holdings Group, LLC
SME Network & Computer Systems Administrator
Harmonia Holdings Group, LLC, Norfolk, Virginia, United States, 23500
SME Network & Computer Systems Administrator
Harmonia Holdings Group is seeking a highly skilled
SME Network & Computer Systems Administrator
to support DHS ICE Homeland Security Investigations (HSI) Title III and Linguists Unit (T3LU) under the CALEA program. This role provides advanced technical leadership and mission-critical support for secure law-enforcement systems operating 24/7 across multiple locations.
The SME Administrator will manage and troubleshoot enterprise networks, servers, and virtual environments, and security configurations while collaborating on the design and maintenance of the CALEA
Continuity of Operations (COOP)
site in Scottsdale, AZ — a shared responsibility among Harmonia, government, and vendor partners.
This position supports DHS’s mission while contributing to Harmonia’s overarching goals: delivering premier technology services, driving mission-focused innovation, sustaining organizational excellence, and being an employer of choice for skilled professionals.
Responsibilities
Install, configure, administer, and maintain CALEA LAN/WAN infrastructure, servers, SANs and network devices.
Troubleshooting
DNS
and
DHCP
issues
Managing
GPO hierarchy and execution
Writing and maintaining
PowerShell/Bash scripts
for automation
Analyzing event logs and Windows system errors
Plan, deploy, and maintain
COOP and DR capabilities
in coordination with the Government and vendor partners, ensuring redundancy and failover readiness.
Patch and update servers and workstations; ensure security baseline compliance with DHS and FISMA standards.
Apply and troubleshoot security hardening requirements and vulnerability remediation; support the ATO process and collaborate with the ISSO to resolve findings.
Administer virtualization and storage platforms, including:
VMware ESXi/vCenter
– patching, updates, capacity planning, troubleshooting
Nutanix
– cluster management and maintenance
NetApp
– SAN/NAS configuration and data management
Assist with
Palo Alto firewall
deployment and rule migration (from Cisco ASA 5506) to support network segmentation and high availability.
Configure and troubleshoot Cisco and Dell switches; support VPN tunnels and IP transition projects (copper to fiber).
Support lab environment setup and testing for patch validation and COOP simulation.
Perform hardware replacement (hard drives, memory modules, power supplies, etc.).
Maintain technical documentation, diagrams, and SOPs in CALEA repositories.
Liaise with Harmonia and ICE technical leads to coordinate troubleshooting and mission support.
Required Qualifications
Bachelor’s degree in IT, Engineering, or related field OR 5+ years equivalent experience.
10+ years of enterprise IT systems/network administration experience.
Microsoft Certified Systems Engineer (MCSE + Security)
Proficiency in:
Active Directory, DNS, DHCP, and GPO management
PowerShell or Bash scripting for automation and administration
VMware, Nutanix, and NetApp administration
Windows Server and Linux system management
Server/workstation patching and security remediation
Security standards, ATO processes, and coordination with ISSO
Cisco/Dell network devices and Palo Alto firewalls
Excellent communication skills with both technical and non-technical stakeholders.
Ability to work independently in high-pressure, mission-critical environments.
Preferred Qualifications
Experience supporting federal law enforcement IT systems or CALEA-related operations.
Hands-on experience assisting with the design or deployment of COOP/DR sites.
Knowledge of Palo Alto firewall configuration and migration.
Familiarity with Kubernetes or containerized applications (e.g., JSI platforms).
Experience with static routing, VPN tunnels, and multi-site network resiliency.
Familiarity with lab testing and replication validation processes.
Prior experience supporting high-availability, 24/7 mission operations.
Soft Skills
Analytical and detail-oriented with strong initiative.
Adaptability to changing mission needs and operational tempo.
Collaborative approach with vendors (JSI, Palo Alto) and government teams.
Commitment to Harmonia’s principles of excellence, collaboration, curiosity, and integrity, and growth within an employer of choice organization.
Physical Demands / Work Environment
Must regularly lift/move up to 50 lbs.; occasionally up to 80 lbs. with hand truck/lift cart.
Requires standing, kneeling, crouching, and crawling in server rooms.
Seniority level
Mid-Senior level
Employment type
Full-time
Job function
Information Technology
Industries
Software Development
#J-18808-Ljbffr
SME Network & Computer Systems Administrator
to support DHS ICE Homeland Security Investigations (HSI) Title III and Linguists Unit (T3LU) under the CALEA program. This role provides advanced technical leadership and mission-critical support for secure law-enforcement systems operating 24/7 across multiple locations.
The SME Administrator will manage and troubleshoot enterprise networks, servers, and virtual environments, and security configurations while collaborating on the design and maintenance of the CALEA
Continuity of Operations (COOP)
site in Scottsdale, AZ — a shared responsibility among Harmonia, government, and vendor partners.
This position supports DHS’s mission while contributing to Harmonia’s overarching goals: delivering premier technology services, driving mission-focused innovation, sustaining organizational excellence, and being an employer of choice for skilled professionals.
Responsibilities
Install, configure, administer, and maintain CALEA LAN/WAN infrastructure, servers, SANs and network devices.
Troubleshooting
DNS
and
DHCP
issues
Managing
GPO hierarchy and execution
Writing and maintaining
PowerShell/Bash scripts
for automation
Analyzing event logs and Windows system errors
Plan, deploy, and maintain
COOP and DR capabilities
in coordination with the Government and vendor partners, ensuring redundancy and failover readiness.
Patch and update servers and workstations; ensure security baseline compliance with DHS and FISMA standards.
Apply and troubleshoot security hardening requirements and vulnerability remediation; support the ATO process and collaborate with the ISSO to resolve findings.
Administer virtualization and storage platforms, including:
VMware ESXi/vCenter
– patching, updates, capacity planning, troubleshooting
Nutanix
– cluster management and maintenance
NetApp
– SAN/NAS configuration and data management
Assist with
Palo Alto firewall
deployment and rule migration (from Cisco ASA 5506) to support network segmentation and high availability.
Configure and troubleshoot Cisco and Dell switches; support VPN tunnels and IP transition projects (copper to fiber).
Support lab environment setup and testing for patch validation and COOP simulation.
Perform hardware replacement (hard drives, memory modules, power supplies, etc.).
Maintain technical documentation, diagrams, and SOPs in CALEA repositories.
Liaise with Harmonia and ICE technical leads to coordinate troubleshooting and mission support.
Required Qualifications
Bachelor’s degree in IT, Engineering, or related field OR 5+ years equivalent experience.
10+ years of enterprise IT systems/network administration experience.
Microsoft Certified Systems Engineer (MCSE + Security)
Proficiency in:
Active Directory, DNS, DHCP, and GPO management
PowerShell or Bash scripting for automation and administration
VMware, Nutanix, and NetApp administration
Windows Server and Linux system management
Server/workstation patching and security remediation
Security standards, ATO processes, and coordination with ISSO
Cisco/Dell network devices and Palo Alto firewalls
Excellent communication skills with both technical and non-technical stakeholders.
Ability to work independently in high-pressure, mission-critical environments.
Preferred Qualifications
Experience supporting federal law enforcement IT systems or CALEA-related operations.
Hands-on experience assisting with the design or deployment of COOP/DR sites.
Knowledge of Palo Alto firewall configuration and migration.
Familiarity with Kubernetes or containerized applications (e.g., JSI platforms).
Experience with static routing, VPN tunnels, and multi-site network resiliency.
Familiarity with lab testing and replication validation processes.
Prior experience supporting high-availability, 24/7 mission operations.
Soft Skills
Analytical and detail-oriented with strong initiative.
Adaptability to changing mission needs and operational tempo.
Collaborative approach with vendors (JSI, Palo Alto) and government teams.
Commitment to Harmonia’s principles of excellence, collaboration, curiosity, and integrity, and growth within an employer of choice organization.
Physical Demands / Work Environment
Must regularly lift/move up to 50 lbs.; occasionally up to 80 lbs. with hand truck/lift cart.
Requires standing, kneeling, crouching, and crawling in server rooms.
Seniority level
Mid-Senior level
Employment type
Full-time
Job function
Information Technology
Industries
Software Development
#J-18808-Ljbffr