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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Network Engineer - **Company:** RealmOne - **Location:** Columbia, MD, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Systems Engineering, VoIP, Cyber Security, Information Systems, Computer Networks, Databases, Data Centers, Network Address Translation, Fault Tolerance, Data Flow Control, Monitoring of Systems, IT Management, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Architecture, Network Diagrams, Routing, Performance Tuning, Microsoft SharePoint, Software Requirements Analysis, Systems Architecture, System Testing, Systems Integration, Virtualization Technology, Load Balancing, System Availability, Information Technology - **Published:** September 11, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8980633/senior-network-engineer ## About the Role * 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. * Preferred: + 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 + Enterprise Routing and Switching + Network Architecture and Design + Infrastructure Troubleshooting + Patching and Operational Sustainment + STE/STN Support + Load Balancing and Fault Tolerance + High Availability Solutions + Data Center Infrastructure + Network Diagrams and Technical Documentation + Systems Engineering and Integration + Infrastructure Modernization + Performance Analysis and Optimization Certifications Required: * (IAT) Level II certification/ Security + Position requires active Security Clearance with appropriate Polygraph ## Description 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. Join us on this journey as we execute this mission-critical contract providing architecture, engineering, integration, and maintenance across a multiple classification Enterprise network. Your effort and expertise are crucial to the success and execution of this impactful mission. This opportunity supports an Enterprise IT contract with a team of Customer Service Specialists, Database Engineers, Information Systems Security Officers, Information Systems Security Engineers, SharePoint Developers, Systems Engineers, Network Engineers, and IT Engineers responsible for the architecture, engineering, integration, operations, maintenance and sustainment of multi-level Enterprise IT environment., * 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. * 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. The Systems Engineer 3 shall possess the following capabilities: * 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. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Getting under the skin: The Social Engineering techniques](https://www.wearedevelopers.com/videos/38-getting-under-the-skin-the-social-engineering-techniques) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)