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Network Engineer – Senior

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Onsite

Network Engineer – Senior

RealmOne

Network Engineer – Senior

Skills

IOSData ScienceCybersecurityData AnalysisAWSAzure

11 days ago

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Important information


Contract type:

Permanent

Salary:

$166,113 – $196,113 / year

Location:

Chantilly, VA, USA

Work mode:

Onsite

Published on:

10 October 2026

What they need


RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch industry professionals.

We are seeking an experienced Network Engineer to join our technology-based program supporting a key U.S. Government customer. The Network Engineer will provide engineering services supporting complex network and enterprise computing infrastructure, including core network infrastructure, endpoint devices, data center-hosted servers, multi-cloud services, virtualized applications, and storage systems. This position offers the opportunity to work in a fast-paced and technically challenging environment supporting one of the Government’s most complex and high-profile programs.

The Network Engineer shall possess the following capabilities:

  • Design, engineer, implement, and support TCP/IP transport networks and enterprise network infrastructure.
  • Configure and troubleshoot network routing protocols and advanced virtual networking technologies.
  • Perform network upgrades and routine operations and maintenance (O&M) activities.
  • Identify and implement INFOSEC and COMSEC security requirements across network environments.
  • Apply complex configuration management techniques and requirements to enterprise network systems.
  • Troubleshoot and resolve network performance, connectivity, and availability issues across LAN, WAN, VPN, SD-WAN, and VoIP environments.
  • Configure and support Cisco IOS technologies, including switching, routing, segment routing, and related networking technologies.
  • Support core infrastructure, voice and video engineering, field engineering, network application management, and network analytics.
  • Engineer and support firewalls, network access controls, and bandwidth service delivery.
  • Support enterprise computing environments consisting of endpoint devices, data center-hosted servers, virtualized applications, storage systems, and multi-cloud services.
  • Support modern application technologies, including containerized solutions and orchestrated workflows operating both on-premises and through remote cloud services.
  • Apply network security best practices, including firewall, perimeter security, and VPN technologies.
  • Collaborate with engineering, security, cloud, systems, and mission teams to develop and implement reliable technical solutions.

Required Qualifications:

  • Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related technical discipline.
  • Minimum of six (6) years of relevant Network Engineering experience.
  • Demonstrated experience with TCP/IP transport network design and engineering.
  • Demonstrated experience with network routing protocols and advanced virtual networking technologies.
  • Experience performing network upgrades and routine network O&M.
  • Experience implementing INFOSEC and COMSEC requirements.
  • Experience with configuration management of network systems.
  • Hands-on experience troubleshooting LAN, WAN, VPN, SD-WAN, and VoIP environments.
  • Demonstrated experience with Cisco IOS, switching, routing, and segment routing.

Desired Qualifications:

  • Master’s degree in a related technical discipline.
  • Experience across a variety of network technologies and solution architectures.
  • Broad understanding of networking principles, theories, and concepts.
  • Knowledge of systems engineering principles and network design concepts.
  • Virtualization experience, including VDI and VMware.
  • Cloud experience, including AWS, Azure, or similar cloud platforms.
  • Experience implementing security best practices, firewalls, perimeter security controls, and VPN technologies.
  • Experience with continuous integration, test automation, and/or SecDevOps within iterative development environments.
  • Experience working within Agile development methodologies.
  • Cisco CCNA or CCNP certification.

Position requires an active Security Clearance with appropriate Polygraph.

Pay Range: $166,113 - $196,113

The RealmOne pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Our approach to crafting offers considers various factors to establish an equitable and competitive compensation package. These considerations include, but are not limited to, the extent and intricacy of the role’s responsibilities, the candidate’s educational background, their work experience, and the specific competencies crucial for success in the role.

RealmOne Benefits:

  • Healthcare Coverage + Insurance: Medical: Three (3) rich healthcare options through CareFirst with 100% or majority company-paid premiums. Tax-advantaged health savings account available with generous employer contribution. Dental + Vision: 100% employer-paid for employees and family, with a buy-up option available.
  • Retirement + Savings: 401K – 10% TOTAL CONTRIBUTION – 5% safe harbor – 5% annual profit share (both immediately vested!).
  • Paid Time Off + More: 4 weeks starting PTO – 11 federal holidays + 2 floating holidays – Paid hours for company-required training.
  • Career Growth + Development: Access to FREE 24/7 learning via Udemy – Opportunities to participate in tech councils, industry initiatives, etc. – $7,500 annual Educational & Professional Development Assistance.
  • MORE BENEFITS…FOR EVERY LIFESTYLE! – Paid parental leave – Annual swag drops – Flexible work schedules -Generous referral bonus program – Employee appreciation + family-friendly corporate events …and much more.

ABOUT US

  • RealmOne is a mid-sized science and technology company dedicated to solving our customers’ toughest mission challenges.
  • Headquartered in Columbia, MD., RealmOne supplies advanced cybersecurity, data science, and software engineering services and products to customers in the Government and commercial sectors.
  • RealmOne delivers encompassing mission assurance and critical systems support to government customers across various U.S. locations to include Colorado, Georgia, Hawaii, Texas, Utah, and Virginia.
  • RealmOne has won numerous awards, including Top Workplaces by the Baltimore Sun. Across more than 20 prime contracts, RealmOne is a premier innovator for the Government and Department of Defense, and our team is located across the United States.

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