Senior Network and Computer Systems Administrator
About DMI DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, efficient, and cost-effective solutions that drive measurable results. Learn more at www.dminc.com About the Opportunity DMI, LLC is seeking a Senior Network and Computer Systems Administrator to provides advanced-level technical administration and engineering support for TSA’s enterprise network and computing infrastructure, including servers, workstations, networking equipment, and associated systems across on-premises and cloud environments. Duties and Responsibilities: This individual performs configuration management, system hardening, patch management coordination, and operational support for infrastructure components across TSA’s complex, distributed environment spanning headquarters and airports nationwide. The role requires the ability to work collaboratively with the O&M contractor and engineering teams to ensure seamless integration of new capabilities into the existing infrastructure baseline. In this capacity, the Senior Network and Computer Systems Administrator develops and maintains technical runbooks, configuration baselines, and SOPs that enable the O&M contractor to sustain implemented systems. The individual supports cutover planning and post-transition operational testing, validates that network and system changes meet TSA performance and security requirements, and troubleshoots complex infrastructure issues in both lab and live environments. The Administrator also contributes to lifecycle engineering assessments and replacement planning for aging infrastructure components throughout the TALON portfolio. Qualifications Education and Years of Experience: Candidates must possess a minimum of 6 years of hands-on network and systems administration experience in large enterprise environments, with demonstrated expertise in Windows Server, Active Directory, virtualization platforms, and enterprise networking. Experience in federal environments with FISMA compliance requirements and DHS cybersecurity standards is strongly preferred. All personnel must be U.S. citizens or Lawful Permanent Residents, capable of obtaining TSA fitness determination and PIV card access, and available to support after-hours maintenance windows in TSA’s 24x7x365 operational environment. Background Requirements: Successful completion of a Public Trust background investigation and/or a Public Trust clearance. Citizenship Status Required: Must be a U.S. Citizen Physical Requirements: None required for this position. Location: Remote, US Working at DMI DMI is a diverse, prosperous, and rewarding place to work. Our culture is shaped by five core values that guide how we work, grow, and succeed together: Do What’s Right – We lead with honesty and integrity. Own the Outcome – We take responsibility and deliver. Deliver for Our Customers – We are relentless about delivering value. Think Bold, Act Smart – We innovate with purpose. Win Together – We collaborate and celebrate our success. These values aren’t just ideals—they show up in how we support every part of your well-being: Convenience/Concierge – Virtual health visits, commuter perks, pet insurance, and entertainment discounts that make life easier. Development – Annual performance reviews, tuition assistance, and internal career growth opportunities to help you thrive. Financial – Generous 401(k) matches, life and disability insurance, and financial wellness tools to support your future. Recognition – Annual awards, service anniversaries, referral bonuses, and peer-to-peer shoutouts that spotlight your achievements. Wellness – Healthcare coverage, wellness programs, flu shots, and biometric screenings to support your health. DMI values employees for their talents and contributions, and we take pride in helping our customers achieve their goals. Because when we live our values, we all win together. ***************** No Agencies Please ***************** Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information. US citizenship may be required for some positions.