Senior Administrator - F5, Infoblox IPAM

Technology, Data & Digital · IT Infrastructure & Security · Network Administration

In short

Infoblox SME – L4 Role Overview The Infoblox Subject Matter Expert (SME) – Level 4 serves as the senior technical escalation point and design authority for enterprise DNS, DHCP, and IP Address Management (DDI) services. The role owns complex troubleshooting, platform engineering, service resilience, lifecycle planning, and automation for Infoblox environments.

Responsibilities

Design and maintain Infoblox NIOS Grid architecture, including high availability, site resiliency, and capacity planning.
Engineer and troubleshoot authoritative and recursive DNS, DHCP scopes, ranges, reservations, and IPAM governance.
Lead technical diagnosis of critical and recurring DDI incidents using logs, packet captures, and dependency analysis.
Plan and execute NIOS upgrades, patches, appliance replacements, and configuration changes.
Develop automation using Infoblox WAPI/REST APIs and scripting tools like Python or PowerShell.
Establish actionable alerting and reporting for Grid health, DNS performance, DHCP utilization, and IPAM capacity.
Mentor L2/L3 engineers and provide technical guidance.

Requirements

Extensive hands-on experience supporting enterprise Infoblox NIOS environments.
Demonstrated ownership of complex DDI engineering, troubleshooting, and escalations.
Expert-level understanding of DNS, DHCP, and IPAM fundamentals.
Strong practical experience with Infoblox Grid administration, physical or virtual appliances, high availability, upgrades, backups, recovery, and distributed deployments.
Ability to troubleshoot DNS resolution failures, DHCP allocation issues, replication or synchronization problems, and intermittent service degradation through packet and log analysis.
Working knowledge of TCP/IP, IPv4/IPv6 addressing, subnetting, DNSSEC, and secure DNS administration.
Hands-on experience with Infoblox WAPI/REST APIs and at least one scripting or automation tool.
Experience managing migrations from legacy or Microsoft DNS/DHCP platforms.
Strong understanding of incident, problem, change, and configuration management practices.
Ability to communicate technical risks, options, and recommendations clearly.

Desired Qualifications

Relevant degree in computer science, information technology, engineering, or equivalent practical experience.
Relevant Infoblox training or certification in DDI administration, advanced troubleshooting, or architecture.
Experience with Infoblox Universal DDI, hybrid-cloud DDI management, and integration with AWS, Azure, or Google Cloud DNS services.
Exposure to Infoblox DNS security capabilities, response policy zones, and integration with security monitoring platforms.
Experience integrating DDI workflows with ServiceNow or comparable ITSM platforms.
Experience with infrastructure-as-code, version control, and controlled deployment pipelines for network automation.
Relevant networking, cloud, or IT service management certifications.

Benefits

L4 escalation coverage and participation in an on-call roster and planned maintenance windows.
Ownership of technical investigations through resolution.
Maintenance of current architecture records, configuration standards, and recovery runbooks.
Production of root cause analyses and tracking of preventive actions.
Delivery of tested change plans with implementation steps, risk assessments, rollback criteria, and validation evidence.
Reporting on service health, capacity trends, lifecycle risks, automation outcomes, and improvement progress.
Operation within approved change and access controls.

Skills

InfobloxF5IPAMDNSDHCPNIOSWAPIREST APIsPythonPowerShellAnsibleTCP/IPIPv4IPv6DNSSECActive DirectoryServiceNow

#F5#Infoblox IPAM#DDI#DNS#DHCP#IPAM#Network Administrator#Senior Administrator#L4 Role#High Availability#Site Resiliency#Capacity Planning#DNSSEC#Automation#API

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