Network Infrastructure Engineer

Network Infrastructure Engineer

Location: Clinton, MS (100% Onsite)

Duration: Long-Term Contract (Through March 2027 with Possible Extensions)

Employment Type: Contract

Position Summary

Seeking a highly experienced Network Infrastructure Engineer to support, modernize, and secure a large-scale enterprise networking environment. This role requires deep expertise in Cisco networking technologies, data center infrastructure, software-defined networking, identity-driven access controls, network observability, and enterprise security solutions.

The ideal candidate will be responsible for designing, implementing, troubleshooting, and optimizing mission-critical network infrastructure while supporting modernization initiatives and high-availability enterprise environments.

Key Responsibilities

<>Data Center & Cisco ACI Infrastructure

• Design, implement, and support Cisco Nexus platforms within ACI environments.
• Configure and manage VRFs, Bridge Domains, EPGs, ESGs, L3Outs, contracts, and fabric policies.
• Support integrations with containerized and virtualized environments.
• Troubleshoot fabric health, segmentation, endpoint learning, and policy enforcement issues.
• Develop and maintain architecture diagrams, standards, and operational documentation.

<>Enterprise Switching & Software-Defined Networking

• Deploy and support Cisco Catalyst switching infrastructure.
• Design and administer Software-Defined Access (SDA) environments.
• Manage underlay and overlay networking, policy enforcement, authentication services, and network assurance.
• Collaborate with infrastructure teams to optimize enterprise connectivity and performance.

<>Identity, Security & Access Management

• Administer network access control and identity management solutions.
• Support Zero Trust and segmentation initiatives.
• Implement and maintain authentication, authorization, and endpoint profiling services.
• Integrate network security technologies with enterprise access management frameworks.

<>Network Monitoring & Analytics

• Manage network observability and performance monitoring platforms.
• Support network analytics, telemetry, reporting, and visibility initiatives.
• Provide performance insights and recommendations to technical leadership.
• Monitor enterprise network health and proactively identify issues.

<>Core Network Engineering

• Troubleshoot complex Layer 2 and Layer 3 networking environments.
• Configure and support routing, switching, multicast, QoS, and high-availability solutions.
• Implement and maintain enterprise firewall and network security technologies.
• Support infrastructure upgrades, modernization projects, and operational improvements.

Required Qualifications

• 15+ years of hands-on enterprise networking experience.
• Strong expertise with Cisco ACI in production environments.
• Extensive experience with Cisco Nexus and Cisco Catalyst platforms.
• Experience designing and supporting Software-Defined Access (SDA) environments.
• Strong knowledge of enterprise routing, switching, and network security.
• Experience administering identity and access control solutions.
• Hands-on experience with network observability and analytics platforms.
• Strong understanding of TCP/IP networking fundamentals.
• Excellent troubleshooting, communication, and documentation skills.
• Experience supporting mission-critical enterprise infrastructure.

Technical Skills

• Cisco ACI
• Cisco Nexus
• Cisco Catalyst
• Software Defined Access (SDA)
• Identity Services & Access Control
• Network Observability & Monitoring Tools
• Palo Alto Firewalls
• TCP/IP
• BGP
• OSPF
• STP
• VLANs
• QoS
• OpenShift / Container Networking
• Network Security
• Enterprise Infrastructure Architecture

Preferred Qualifications

• Advanced Cisco certifications (CCNP, CCIE, or equivalent).
• Palo Alto security certifications.
• Experience with Python, Ansible, REST APIs, or network automation tools.
• Experience with virtualization and container networking technologies.
• Familiarity with cybersecurity frameworks and security best practices.
• Prior experience supporting large enterprise or public-sector environments.

Desired Skills

• Strong analytical and problem-solving abilities.
• Excellent verbal and written communication skills.
• Ability to work independently and collaboratively within cross-functional teams.
• Strong organizational and documentation skills.
• Ability to manage multiple priorities in a fast-paced enterprise environment.