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Network and Computer Systems Administrator SME

Network and Computer Systems Administrator SME

Harmonia Holdings Group, LLCNorfolk, VA, US
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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

  • 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 Solutions Associate (MCSA), Microsoft Certified Systems Engineer (MCSE + Security), or PMP – preferred (CCNA / CCNP not accepted).
  • Windows OS and Active Directory (AD).
  • VMware virtualization (capacity analysis, installations, patching, troubleshooting).
  • Storage Area Networks (SAN / RAID).
  • Excellent communication skills; ability to explain technical issues to non-technical leadership.
  • Demonstrated ability to work independently in high-pressure, mission-critical environments.

    • Soft Skills

  • Strong written and verbal communication.
  • Active listening and collaboration with executive-level stakeholders.
  • Adaptability to changing mission requirements.
  • Ability to mentor and lead other administrators.
  • Commitment to Harmonia's principles of excellence, collaboration, curiosity, and integrity — and to growing as part of an organization that strives to be an employer of choice.

    • 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-room environments.
  • Normal hearing / vision required; moderate server-room noise.

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