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Network & Computer Systems Administrator
Network & Computer Systems AdministratorHarmonia Holdings Group LLC • Lorton, VA, US
Network & Computer Systems Administrator

Network & Computer Systems Administrator

Harmonia Holdings Group LLC • Lorton, VA, US
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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 Overview

Harmonia Holdings Group is seeking a highly skilled 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 enterprise IT systems / network administration experience.
  • Microsoft Certified Solutions Associate (MCSA), Microsoft Certified Systems Engineer (MCSE + Security), or PMP - preferred (CCNA / CCNP not accepted).
  • Expertise in :
  • Windows OS and Active Directory (AD)
  • Linux system administration
  • 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.

    • Benefits and Additional Information

    We are proud of Harmonia\'s recognitions for outstanding work culture and innovation. Benefits for full-time employees include, but are not limited to :

  • Traditional and HSA- eligible medical insurance plans w / Wellness Incentives for employees and family
  • 100% employer-paid dental and vision insurance options
  • 100% employer-sponsored STD, LTD, and life insurance
  • Veterans Cohort
  • Gym membership reimbursement
  • 401(k) matching
  • Dollar-for-dollar 501(c)(3) donation matching
  • Flexible-schedules and teleworking options
  • Paid holidays and Flexible Paid Time Off
  • Adoption Expense Reimbursement
  • Paid Parental Leave
  • Professional development and career growth opportunities and paid training days
  • Employer-sponsored Employee Assistance Program for employee and family
  • Team and company-wide events, recognition, and appreciation and so much more!

    • Equal Opportunity

    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 does and will take affirmative action to employ and advance in employment individuals with disabilities and protected veterans. If you are in need of an accommodation, please contact HR@harmonia.com.

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    Network Administrator • Lorton, VA, US