Network & Cloud Infrastructure Engineer - TS/SCI with CI Polygraph

Job DescriptionJob Description

TITLE: Network & Cloud Infrastructure Engineer

LOCATION: McLean, VA

CLEARANCE REQUIRED: Active DoD TS/SCI with CI Polygraph

EMPLOYMENT TYPE: Full-time, On-site

TRAVEL: 25%

POSITION SUMMARY

Modern Government Solutions (MGS) is seeking a Network & Cloud Infrastructure Engineer to design, deploy, and automate next- network infrastructure supporting advanced workloads, including Artificial Intelligence (AI), data analytics, and containerized applications. This role blends cloud systems engineering, network design, and automation, delivering secure, high-performance hybrid environments that integrate traditional networking hardware (routers, switches, firewalls) with Software-Defined Networking (SDN) technologies and OpenShift Container Platform (OCP) environments.

You'll work within a mission-driven engineering team to ensure scalability, resilience, and security across complex, classified infrastructure.

RESPONSIBILITIES (not limited to):

• Design, deploy, and optimize hybrid network and cloud infrastructure supporting high-performance, secure, and scalable workloads.
• Automate provisioning, configuration, and operations using tools like Ansible, Python, and Go, applying Infrastructure-as-Code and DevSecOps principles.
• Integrate traditional hardware (routers, switches, firewalls) with SDN and container-based networking solutions (e.g., Open vSwitch, OVN, SONiC, or Cumulus NOS).
• Support and troubleshoot network performance, routing, and system connectivity issues across Linux and containerized platforms.
• Manage OpenShift/Kubernetes networking - including CNI plugins, MetalLB, Service Mesh, and Network Observability Operator.
• Implement observability, monitoring, and performance tuning across the full network stack, leveraging modern tooling.
• Collaborate with systems architects, platform engineers, and external partners to deliver innovative, compliant, and sustainable infrastructure solutions.
• Maintain technical documentation, network standards, and operational runbooks supporting security and compliance requirements.
• Drive modernization and innovation across the full network lifecycle - from data center to edge, Top of Rack to Border.

REQUIRED SKILLS AND QUALIFICATIONS

• Must possess an active Department of Defense (DoD) TS/SCI clearance with Counterintelligence polygraph.
• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience).
• 5+ years of experience in network or cloud infrastructure engineering, including design, automation, and operations.
• 3+ years of hands-on experience with networking protocols and architectures (LAN, WAN, VLANs, routing, firewalls).
• 3+ years of experience scripting or programming in Python or Go for network automation or tooling.
• 2+ years of experience using automation/configuration frameworks such as Ansible and Infrastructure-as-Code (IaC) practices.
• Proven ability to deploy and troubleshoot hybrid environments across Linux, virtualization, and container platforms (OpenShift/Kubernetes).
• Working knowledge of SDN technologies (e.g., OVS, OVN, SONiC, Cumulus NOS) and OpenShift networking components (CNI plugins, MetalLB, Service Mesh).
• Familiarity with observability and performance tools, including OpenShift Network Observability Operator.
• Demonstrated excellence in network and system troubleshooting, documentation, and cross-functional communication.

SKILLS AND QUALIFICATIONS

• Proficiency in Python or Go scripting and configuration management with Ansible.
• Experience implementing Infrastructure-as-Code (IaC), CI/CD pipelines, and DevSecOps practices.
• Hands-on experience with SDN technologies (e.g., OVS/OVN, SONiC, Cumulus NOS) and OpenShift/Kubernetes networking (CNI plugins, MetalLB, Service Mesh).
• Familiarity with service mesh technologies for traffic management, security, and observability.
• Knowledge of DoD network security and compliance standards.
• Exposure to AI/ML or high-performance computing (HPC) networking environments.
• Proven ability to drive innovation and apply best practices across the full network stack, from Top of Rack to Border, with strong documentation skills.

*Applicants selected will be United States and may be subject to a government security investigation for access to classified information.*

ABOUT US

At MGS, we believe a people-first culture corresponds to organizational success through a commitment to excellence, integrity, , and an attitude that welcomes challenges meets demands, sustains growth, and drives innovation. We provide expert mission-first technical and programmatic services and solutions for the US intelligence community, the US Department of Defense, and other governmental agencies. We create people-first organizational cultures where employees feel needed in the system, not a system that needs employees. We provide you with long-term career opportunities centrally focused on our core value system: , integrity, and a commitment to excellence.

MGS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to , , , , , , , or protected veteran status, and will not be discriminated against on the basis of .