Sr Network Engineer (LAN, Datacenter) (Onsite Position)

O'Reilly Auto Parts • Headquarters, KY

1d • Onsite

About The Position

The Senior Network Engineer will lead the evaluation of enterprise network systems, recommend scalable architectural resources, and identify/deploy advanced networking products to optimize service levels across multisite environments. This role focuses heavily on SD-WAN, Zero Trust security models, LAN/Data Center infrastructures, and core routing architectures. The role supports standards for low-latency, high-performance networks in high-traffic retail and omnichannel environments, recommending continuous enhancements for security, mobility, and access while serving as an escalation point for complex network issues and mentoring junior team members. This role is located in Springfield MO, remote work not an option.

Requirements

• Manages, configures, and optimizes SD-WAN overlays and underlays across multisite networks to ensure reliable, application-aware routing and high availability.
• Identifies, designs, and enforces Zero Trust network access control, micro-segmentation, and identity-driven access policies across the enterprise.
• Oversees the design, deployment, and ongoing management of high-density Data Center fabrics, switching, leaf-spine architectures, and local area networks (LAN).
• Demonstrates advanced knowledge of core routing protocols (BGP, OSPF, EIGRP), WAN transport strategies, and traffic engineering in complex hybrid environments.
• Identifies appropriate measures for assessing network performance, validates metrics with key stakeholders, and implements optimizations for low-latency, high-traffic demands.
• Methodically analyzes complex network failures, diagnoses routing or latency anomalies, and executes swift remediations to minimize business impact.
• Communicates and articulates complex network designs, security risks, and technical strategies in a clear, compelling manner tailored to both technical teams and leadership.
• Plans, identifies, and prioritizes network vulnerabilities and operational risks; develops proactive response plans to mitigate network and security threats.
• Identifies, verifies, and manages changes to enterprise network scope and infrastructure configurations using structured change management procedures.
• Organizes, schedules, and prioritizes infrastructure implementations and upgrades to ensure timely project delivery without business disruption.

Responsibilities

• Drive advances in SD-WAN, core routing, and switching architectures to increase the value delivered by enterprise network capabilities, improving environment efficiency and lowering total cost of technology operations.
• Design, select, and manage business-critical LAN, Data Center, and client/server network environments in line with industry best practices; provide third-line point of escalation for global network infrastructure solutions.
• Implement and enhance Zero Trust network access (ZTNA) frameworks, micro-segmentation, and security measures (e.g., next-gen firewalls, secure access service edge/SASE, and message encryption) to safeguard high-traffic, multisite connectivity.
• Discuss and recommend technical developments to improve the quality, security, and scalability of core network routing, LAN/Data Center environments, and supporting digital infrastructure to better meet business needs.
• Collect network and business requirements through interviews, workshops, and traffic/workflow analysis; perform network software/hardware testing, monitoring performance, and diagnosing complex latency or bottleneck issues.
• Explore and develop a detailed understanding of emerging networking technologies (such as advancements in SD-WAN protocols, Zero Trust tools, and cloud routing) to evaluate their potential impact on the organization.
• Provide fault isolation, deep-packet analysis, and root-cause resolution for complex core network, routing, and multisite SD-WAN challenges to limit downtime and ensure operational continuity.
• Draft engineering standards, routing policies, and configuration specifications. Document "as-is" and "to-be" network states and execute migration plans to transition to modernized network capabilities.
• Mentor associate and mid-level network engineers on complex troubleshooting, such as resolving wide area network (WAN) bottlenecks in high-priority, revenue-generating systems.
• Participate in an on-call rotation and provide flexible, rapid response to critical network outages or urgent security incidents to maintain system availability.
• Maintain an in-depth understanding of core routing, Zero Trust, and LAN/WAN technologies, external regulations, and industry best practices through ongoing training, certifications, and specialist media.

Benefits

• Competitive Wages & Paid Time Off
• Stock Purchase Plan & 401k with Employer Contributions Starting Day One
• Medical, Dental, & Vision Insurance with Optional Flexible Spending Account (FSA)
• Team Member Health/Wellbeing Programs
• Tuition Educational Assistance Programs
• Opportunities for Career Growth

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed