Job Description
Senior Network & Security Engineer Remote – Eastern Or Central Time Zone Preferred Join a company in the middle of an exciting technology transformation, where your expertise will directly influence stability, security, and innovation across a nationwide retail footprint. In this role, you’ll drive meaningful impact from day one—leading complex initiatives, shaping modern network strategies, and elevating the performance of a business that depends on strong, scalable connectivity. If you’re energized by autonomy, thrive in high-accountability environments, and want to help define what “great” looks like in enterprise infrastructure, this opportunity is built for you. The Senior Network and Security Engineer will take ownership of our enterprise network and security infrastructure. This is a critical, high-visibility role responsible for the design, implementation, optimization, and security of network systems across our entire footprint—including 190+ retail stores, a distribution center, corporate headquarters, and multi-cloud environments (AWS, Azure, GCP). As the primary network and security subject matter expert, the Sr Network and Security Engineer will work closely with the Head of Infrastructure and Operations and cross-functional IT teams to ensure our network delivers the reliability, performance, and security required to support our business transformation. This is currently an individual contributor role with significant potential to grow into a management position as the team expands. Key Responsibilities Network Infrastructure Design & Operations • Design, implement, configure, and maintain enterprise network infrastructure including routers, switches, firewalls, load balancers, and wireless systems across all company locations • Manage and optimize Cisco Meraki wireless access points, switches, and security appliances across 190+ retail store locations, ensuring consistent connectivity and performance for point-of-sale systems, inventory management, and customer WiFi • Configure, maintain, and troubleshoot Cisco routing and switching infrastructure at corporate headquarters and distribution center, including VLANs, spanning tree, OSPF/BGP, QoS policies, and access control lists • Administer and optimize F5 load balancers (LTM/GTM) to ensure high availability, traffic distribution, SSL offloading, and optimal application delivery for critical business systems • Manage network connectivity and express routes to AWS, Azure, and Google Cloud Platform (GCP), ensuring secure, high-performance hybrid cloud architecture • Design and implement SD-WAN solutions to optimize traffic routing, reduce costs, and improve application performance across distributed retail locations • Plan and execute network capacity planning, ensuring infrastructure scales to meet business growth and seasonal demand fluctuations • Develop and maintain comprehensive network documentation including topology diagrams, IP address management (IPAM), configuration standards, and runbooks Security Operations & Compliance • Own and manage enterprise firewall infrastructure, including rule creation, modification, auditing, and lifecycle management to ensure least-privilege access and defense-in-depth security • Administer and monitor Splunk SIEM platform, developing and tuning correlation rules, dashboards, alerts, and reports to detect and respond to security threats • Conduct regular vulnerability assessments and coordinate remediation efforts with infrastructure and application teams to reduce attack surface and maintain security posture • Ensure ongoing PCI-DSS compliance across all network environments, including documentation, evidence collection, control implementation, and support for internal and external audits • Implement and manage network segmentation strategies to isolate sensitive systems, cardholder data environments, and guest networks in accordance with compliance requirements • Monitor and respond to security incidents, performing initial triage, containment, investigation, and root cause analysis in coordination with security leadership • Manage VPN infrastructure for remote access and site-to-site connectivity, ensuring secure communications for remote employees and third-party vendors • Stay current with emerging security threats, vulnerabilities, and industry best practices, proactively recommending and implementing security improvements Voice & Unified Communications • Administer and support Avaya VoIP infrastructure including call routing, dial plans, voicemail, SIP trunking, and integration with contact center systems • Troubleshoot voice quality issues, including latency, jitter, and packet loss, implementing QoS policies to ensure clear, reliable communications • Coordinate with telecom carriers and vendors for circuit provisioning, troubleshooting, and service upgrades Operations, Support & Continuous Improvement • Serve as the primary on-call escalation point for critical network and security incidents, pr
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