Senior Manager, Networking and System Engineering

* This recruitment is open until filled. Early submissions are encouraged as applications will be reviewed on a regular and ongoing basis.*

The City of Oxnard’s Information Technology Department is seeking a highly technical Senior Manager, Networking and System Engineering to architect, build, and maintain the backbone of the City's IT infrastructure. Reporting to the Deputy CIO, this role leads the engineering team responsible for the City's network fabric, virtualization stack, and core computing environment. While security is a component of every IT role, the primary mandate of this position is operational excellence: high availability, robust system performance, and seamless connectivity across City departments.

This person will serve as the technical authority on switching, routing, and virtualization strategy, ensuring the technology stack scales with the City's growth and daily operations.

• Core Networking:
  Manage and configure the City's switching infrastructure, including Juniper switches for the storage network and Cisco switches for the general network. Ensure optimal routing, VLAN management, and throughput for high-performance applications.
• Connectivity & Routing:
  Manage and optimize the edge network and firewall rulesets across a multi-vendor environment (Sonic Wall, Fortinet, Cisco Firepower), with a primary focus on traffic flow, bandwidth optimization, and site-to-site VPN reliability.
• Wireless & Edge:
  Manage the Citywide Meraki wireless environment and edge services (including Cloudflare for DNS/CDN/DDoS protection) to ensure secure, reliable connectivity at every City facility.
• Telephony & Carrier Management:
  Own the City's telephony network and manage the carrier relationship (Verizon) supporting voice, cellular, and mobile connectivity, including the City's mobile phone fleet.
• Monitoring & Observability:
  Use Logic Monitor, N-Central, and Splunk to actively monitor network health, bandwidth usage, and latency — not just for log review — proactively identifying and resolving bottlenecks before they impact end users.
• Public Safety Network Segments:
  Manage and maintain the dedicated, segmented networks supporting Police and Fire operations, including the dark site network and Radio System connectivity, to the higher reliability and availability standards these systems require.
• 911 & Surveillance Infrastructure:
  Maintain the network infrastructure underpinning the City's 911 System and surveillance systems (including the Ubiquiti surveillance environment), ensuring uptime and availability for public safety and emergency operations.
• Redundant & Backup Connectivity:
  Maintain backup/failover connectivity (e.g., Starlink) to preserve continuity for critical and public safety systems during a primary network outage.
• Compliance:
  Ensure network architecture, segmentation, and access controls for public-safety systems meet CJIS requirements, partnering with the Security team and outside auditors as needed.
• Virtual Infrastructure:
  Serve as lead architect for the VMware environment, including storage and the City's Public Safety VMware environment. Manage ESXi hosts, vCenter, resource pools, and data stores to ensure maximum uptime and performance.
• Storage & Data Management:
  Oversee the configuration and maintenance of Synology storage arrays and MOVEit managed file transfer, ensuring data remains accessible and data integrity is preserved.
• Linux Ecosystem:
  Manage the lifecycle of the Linux server environment, including container platforms (Docker Swarm). Own repository and patch management infrastructure to ensure system stability and patch consistency enterprise-wide.
• Database Infrastructure:
  Provide infrastructure-level oversight of the City's MySQL/Percona and Microsoft…