Senior Computer Network Support Specialist

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 Computer Network Support Specialist to join us

Duties and Responsibilities:

• The Senior Computer Network Support Specialist provides advanced technical support and engineering assistance for TSA’s enterprise network infrastructure, delivering expert-level troubleshooting, configuration, and optimization services across LAN/WAN, campus networking, wireless systems, and cloud connectivity environments.
• This individual works alongside network architects and the O&M contractor to resolve complex network performance and reliability issues, supports the implementation and validation of new network capabilities, and contributes to the development of network standards and operational procedures.
• The Senior Computer Network Support Specialist plays a critical role in ensuring TSA’s network environment meets the availability and performance requirements of a 24x7x365 mission-critical operation.
• Key responsibilities include providing Tier 2/3 network troubleshooting support during engineering deployments and transition periods, conducting network health assessments and performance analyses, and developing configuration documentation and operational runbooks for implemented network solutions.
• The Senior Computer Network Support Specialist also supports cutover planning and execution for network upgrades and migrations, participates in 14-day operational testing periods following transitions, and provides technical input to lifecycle replacement assessments for aging network equipment.
• The individual coordinates closely with TSA’s O&M contractor to ensure seamless knowledge transfer and operational readiness at the conclusion of each engineering project.

Qualifications

Education and Years of Experience:

• A minimum of 6 years of enterprise network support and engineering experience is required, with demonstrated proficiency in routing and switching, network diagnostics, wireless systems, and enterprise network management tools.
• Experience supporting federal network environments governed by DHS cybersecurity standards is preferred. Relevant certifications such as CCNP or equivalent are valued.
• All personnel must be U.S. citizens or Lawful Permanent Residents capable of obtaining TSA fitness determination and PIV card access, and must be available to support after-hours network maintenance and deployment activities.

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,