Harmonia Holdings Group, LLC is seeking a highly skilled 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.
Requirements
- Install, configure, administer, and maintain CALEA LAN/WAN infrastructure, servers, SANs, and network devices.
- Administer Active Directory (AD), including promoting/demoting domain controllers, 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.
Benefits
- Traditional and HSA-eligible medical insurance plans
- 100% employer-paid dental and vision insurance options
- 100% employer-sponsored STD, LTD, and life insurance
- 5% 401(k) company matching
- Flexible-schedules and teleworking options
- Paid holidays and PTO Accrual Plans
- Paid Parental Leave
- Professional development and career growth opportunities
- Team and company-wide events, recognition, and appreciation
