Harmonia Holdings Group, LLC
Network & Computer Systems Administrator
Harmonia Holdings Group, LLC, Lorton, Virginia, us, 22199
Overview
Harmonia Holdings Group, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction. Role
Title:
SME Network & Computer Systems Administrator Location:
Hybrid (3 days on-site) Terms:
Full-time Clearance:
Able to obtain a Public Trust (US Citizenship required) Travel:
Occasional Role Overview
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, 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. 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, Nutanix, NetApp Assist with Palo Alto firewall deployment and rule migration 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 enterprise IT systems/network administration experience. Preferred Certifications: MCSA, MCSE + Security, CompTIA Security+ (active), PMP Proficiency in: Active Directory, DNS, DHCP, and GPO management; PowerShell or Bash scripting; VMware, Nutanix, NetApp administration; Windows Server and Linux system management; server/workstation patching and security remediation; security standards and ATO processes; Cisco/Dell devices; Palo Alto firewalls Excellent communication skills; ability to work independently in high-pressure environments. Preferred Qualifications
Experience supporting federal law enforcement IT systems or CALEA-related operations. Hands-on experience with COOP/DR site design or deployment. Palo Alto firewall configuration and migration knowledge. Kubernetes or containerized applications familiarity. Experience with static routing, VPNs, multi-site network resiliency. Lab testing and replication validation experience. Prior experience supporting high-availability, 24/7 mission operations. Soft Skills
Analytical and detail-oriented with strong initiative. Adaptable to changing mission needs and tempo. Collaborative with vendors and government teams. Commitment to Harmonia’s principles of excellence, collaboration, curiosity, integrity, and growth within an employer of choice. Physical Demands / Work Environment
Must regularly lift/move up to 50 lbs.; occasionally up to 80 lbs. with hand cart. Requires standing, kneeling, crouching, and crawling in server rooms. Normal hearing/vision; moderate server-room noise. Company Recognition and Benefits
Here At Harmonia We Are Pleased To Have Been Repeatedly Recognized For Our Outstanding Work Culture, The Innovative Work We Do, And The Employees On Our Team Who Make A Difference Each Day. Recognitions include Top 20 Best Place to Work in Virginia; HireVets Gold Medallion; Great Place to Work Certification; several regional and national awards. We offer competitive benefits including medical, dental, vision, STD/LTD/life insurance, 401(k) matching, flexible schedules, paid time off, parental leave, professional development, EAP, and more. EEO Statement
Harmonia is an Equal Opportunity Employer providing equal employment opportunity to all employees and applicants for employment without regard to race, color, religion, national origin, age, gender, gender identity, sexual orientation, disability, or genetics. Harmonia will take affirmative action to employ and advance individuals with disabilities and protected veterans. Reasonable accommodation available; contact HR. Location & Compensation
Washington, DC; Herndon, VA. Salary ranges: $85,000.00-$95,000.00; $146,670.00-$249,330.00; $130,000.00-$175,000.00 depending on role and location.
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Harmonia Holdings Group, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction. Role
Title:
SME Network & Computer Systems Administrator Location:
Hybrid (3 days on-site) Terms:
Full-time Clearance:
Able to obtain a Public Trust (US Citizenship required) Travel:
Occasional Role Overview
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, 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. 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, Nutanix, NetApp Assist with Palo Alto firewall deployment and rule migration 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 enterprise IT systems/network administration experience. Preferred Certifications: MCSA, MCSE + Security, CompTIA Security+ (active), PMP Proficiency in: Active Directory, DNS, DHCP, and GPO management; PowerShell or Bash scripting; VMware, Nutanix, NetApp administration; Windows Server and Linux system management; server/workstation patching and security remediation; security standards and ATO processes; Cisco/Dell devices; Palo Alto firewalls Excellent communication skills; ability to work independently in high-pressure environments. Preferred Qualifications
Experience supporting federal law enforcement IT systems or CALEA-related operations. Hands-on experience with COOP/DR site design or deployment. Palo Alto firewall configuration and migration knowledge. Kubernetes or containerized applications familiarity. Experience with static routing, VPNs, multi-site network resiliency. Lab testing and replication validation experience. Prior experience supporting high-availability, 24/7 mission operations. Soft Skills
Analytical and detail-oriented with strong initiative. Adaptable to changing mission needs and tempo. Collaborative with vendors and government teams. Commitment to Harmonia’s principles of excellence, collaboration, curiosity, integrity, and growth within an employer of choice. Physical Demands / Work Environment
Must regularly lift/move up to 50 lbs.; occasionally up to 80 lbs. with hand cart. Requires standing, kneeling, crouching, and crawling in server rooms. Normal hearing/vision; moderate server-room noise. Company Recognition and Benefits
Here At Harmonia We Are Pleased To Have Been Repeatedly Recognized For Our Outstanding Work Culture, The Innovative Work We Do, And The Employees On Our Team Who Make A Difference Each Day. Recognitions include Top 20 Best Place to Work in Virginia; HireVets Gold Medallion; Great Place to Work Certification; several regional and national awards. We offer competitive benefits including medical, dental, vision, STD/LTD/life insurance, 401(k) matching, flexible schedules, paid time off, parental leave, professional development, EAP, and more. EEO Statement
Harmonia is an Equal Opportunity Employer providing equal employment opportunity to all employees and applicants for employment without regard to race, color, religion, national origin, age, gender, gender identity, sexual orientation, disability, or genetics. Harmonia will take affirmative action to employ and advance individuals with disabilities and protected veterans. Reasonable accommodation available; contact HR. Location & Compensation
Washington, DC; Herndon, VA. Salary ranges: $85,000.00-$95,000.00; $146,670.00-$249,330.00; $130,000.00-$175,000.00 depending on role and location.
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