Network and Computer Systems Administrator SME

Overview

Harmonia Holdings Group 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 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 technical leadership, advanced systems / network administration, and mission-critical operational support.

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 the CALEA LAN / WAN infrastructure, servers, SANs, and network devices.
• Provide technical leadership and supervision of other contractor staff.
• Conduct system capacity analysis, planning, and troubleshooting to maintain optimal performance.
• Install / update antivirus software and apply security patches to maintain DHS compliance.
• Perform hardware replacement (hard drives, memory modules, power supplies, etc.).
• Maintain network diagrams, SOPs, and technical documentation in the CALEA repository.
• Support certification and accreditation (C&A) activities by applying approved security patches.
• Ensure 24 / 7 system availability, COOP, and rapid restoration during outages.
• Liaise with ICE Program Managers and technical leads, providing direct mission support.

Required Qualifications

Soft Skills

Physical Demands / Work Environment

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