Maveris is an IT and Cybersecurity services company committed to helping organizations create secure digital solutions to accelerate their mission. Originally founded as a Veteran-owned company, we remain deeply committed to supporting veterans and proudly serving customers across the Federal Government and private sector. We have an opening for a full-time, Windows System Engineer to join our talented, dynamic team.

Title: Systems Administrator

Location: Lorton, VA - Hybrid (3 days on-site)

Terms: Full-time

Clearance: Able to obtain a Public Trust (US Citizenship required)

Travel: Occasional

Role Overview

Maveris 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.

The Systems 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 Maveris, government, and vendor partners.

This position supports DHS's mission while contributing to Maveris' 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 - 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

Requirements

Bachelor's degree in IT, Engineering, or related field OR +5 years equivalent experience
10+ years of enterprise IT systems/network administration experience
Preferred Certifications:
Microsoft Certified Solutions Associate (MCSA)
Microsoft Certified Systems Engineer (MCSE + Security)
CompTIA Security+ (active certification preferred)
PMP (Project Management Professional)
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
Normal hearing/vision required; moderate server-room noise

Maveris

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