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RealmOne Logo RealmOne · IT - Administration

Senior Network Engineer

United States, Columbia Employment contract 184000.00 - 236000.00 USD / Year · Job Posted May 29, 2026
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Job Description

We are seeking an experienced Senior Network Engineer to support enterprise and mission-critical environments through hands-on engineering, troubleshooting, patching, operational sustainment, and infrastructure modernization activities. The ideal candidate is a self-motivated technical professional who works well across teams, takes initiative, and is naturally curious about how systems and technologies operate within complex environments.

Job Responsibility

  • Design, implement, maintain, and support enterprise network and data center environments
  • Provide engineering support for routing, switching, load balancing, fault tolerance, and infrastructure resiliency initiatives
  • Perform troubleshooting, patching, operational sustainment, and performance optimization activities across network and infrastructure platforms
  • Support STE/STN environments and associated mission infrastructure requirements
  • Analyze user requirements, concepts of operations documents, and high-level system architectures to develop detailed system requirements specifications
  • Lead system design and development activities to support operational and mission objectives
  • Guide users and stakeholders in formulating requirements, evaluating alternatives, and conducting feasibility studies
  • Provide technical leadership for the integration of requirements, system design, and emerging technologies into operational environments
  • Incorporate new systems, technologies, and infrastructure enhancements into ongoing operations with minimal disruption
  • Conduct infrastructure assessments and GAP analyses to identify operational improvements and modernization opportunities
  • Develop and maintain technical documentation, network diagrams, system architecture documentation, and engineering design packages
  • Support development of system engineering management plans, system integration plans, and system test documentation
  • Interact directly with Government customers regarding systems engineering considerations, technical issues, risks, and conflict resolution
  • Ensure the technical integrity, quality, and completeness of engineering deliverables and work products
  • Collaborate with cross-functional engineering and operational teams to ensure reliable, secure, and scalable infrastructure solutions
  • Design solutions, integrate, configure, deploy, test and provide ongoing maintenance for numerous types of network devices, interfaces and methodologies
  • Optimize end-to-end system performance and dataflow management
  • Configure and optimize the network to connect various front-end and back-end components
  • Gather needed data to specify system/component performance and interface requirements
  • Conduct data captures to obtain network performance information
  • Implement specific network solutions to support server requirements to include load-balancing, VPN's, firewall contexts, Traffic Shaping Voice over IP (VoIP), GRE Tunneling, IP Security (IPSec), IP Encryption, Media over IP (MoIP), and network address translation (NAT) where appropriate
  • Minimize network latency and maximize data throughput through design analysis and network performance monitoring tools
  • Provide input to the design of the organization's network and mission architecture

Requirements

  • Bachelor's degree in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required
  • Five (5) years of additional Systems Engineering experience may be substituted for a bachelor's degree
  • Compliance with DoD 8570 requirements
  • Security+ CE certification is required. IAT2
  • 20+ years of experience as a Systems Engineer in programs and contracts of similar scope, type, and complexity
  • Demonstrated experience in planning and leading Systems Engineering efforts
  • 5+ years of experience supporting enterprise network engineering and infrastructure environments
  • Strong experience with routing and switching technologies in enterprise environments
  • Experience with troubleshooting, patching, system sustainment, and infrastructure lifecycle support
  • Experience developing and maintaining network architecture and engineering documentation
  • Strong understanding of high availability, load balancing, fault tolerance, and infrastructure resiliency concepts
  • Experience supporting complex operational or mission-critical environments
  • Strong analytical, problem-solving, and troubleshooting skills
  • Excellent written and verbal communication skills

Nice to have

  • Experience supporting data center modernization and infrastructure transformation initiatives
  • Familiarity with virtualization technologies and enterprise security compliance requirements
  • Experience conducting system integration and test planning activities
  • Prior experience supporting Government or DoD environments
  • Industry certifications such as CCNA, CCNP, or equivalent are a plus

What we offer

  • 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
  • Paid parental leave
  • Annual swag drops
  • Flexible work schedules
  • Generous referral bonus program
  • Employee appreciation + family-friendly corporate events
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