Job Description
Axiom Technologies is an Australia-based entity with a history of providing Managed IT solutions to medium- to large-scale enterprises globally. Please visit our website for more information about what we do at

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We are looking for an experiencedSenior Technical Security Specialistto design, deploy, maintain, and support large-scale corporate network and security infrastructure acrosson-premises and Cloud environments.
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he role will work closely with
Network/Security/Application
Architects, Business Stakeholders, Project Managers, Engineering, Operations teams, and technology vendors to deliver secure, resilient, and cost-effective network solutions.
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The successful candidate will operate at a senior technical level, work independently, manage multiple projects simultaneously, and provideTier 3 technical supportfor complex network and security issues.
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Key Responsibilities
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Design and deploy corporate network and security solutions across on-premises and Cloud environments.
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Develop and maintain detailed technical solution designs, architecture documents, and implementation documentation.
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Work closely with business stakeholders,
Network/Security/Application
Architects, and project teams to understand requirements and deliver appropriate solutions.
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Prepare detailed configuration, system integration, and
implementation/change
plans.
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Conduct peer reviews and ensure changes are implemented with minimal risk and disruption.
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ProvideTier 3 supportfor complex network and security incidents.
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Perform Root Cause Analysis (RCA) and Problem Incident Reviews (PIR).
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Troubleshoot and resolve high-impact technical issues across network and security platforms.
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Work with vendors to suspend issues, identify solutions, and implement fixes or workarounds.
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Conduct pre-upgrade testing, staging, and laboratory testing where required.
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Plan and execute network upgrades and change requests, including stakeholder engagement, approvals, and maintenance windows.
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Participate in after-hours network changes, typically commencing between7:00 PM and 11:00 PM, with activities lasting approximately1-6 hoursdepending on complexity.




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Troubleshoot issues arising during upgrades and coordinate vendor support when required.
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Prepare operational handover documentation and ensure successful transition to Operations.
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Develop work instructions, provisioning guides, and other operational support materials.
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Provide technical feedback and recommendations to improve future network upgrades and operational processes.
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Technical Skills & Experience
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Network & Infrastructure
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Extensive hands-on experience designing and configuring enterprise network and security infrastructure.
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Strong knowledge ofLAN, WAN, and Data Centre networking.
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Expert-level experience withCisco routing and
switchingtechnologies.
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Strong understanding ofOSPF and BGP.
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Experience withNAT, DNS, DHCP, and IP Address Management (IPAM).
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Knowledge of Software Defined Networking (SDN).
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Strong experience with networking services across one or more of the major Cloud platforms:
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AWS:Direct Connect, VPC, Transit Gateway and related networking services.
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Microsoft
Azure:ExpressRoute,
vNet, Virtual WAN (vWAN), vHub and related services.
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Google Cloud:Partner Interconnect, VPC and related networking services.
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Experience acrossAWS, Azure, and GCPis highly desirable.
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Network Security
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Strong experience with enterprise firewall technologies and security platforms.
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Preferred firewall experience:n
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Fortinet
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Check Point
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Palo Alto, Cisco, or other major firewall platforms
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Experience in firewall policy design and implementation.
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Knowledge of IDS/IPS technologies.
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Experience with firewall policy management tools such asAlgoSec FireFlowor equivalent.
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Automation & Infrastructure as Code
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Experience with automation and Infrastructure as Code (IaC) tools such as:n
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Terraform
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Ansible
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GitLab
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Understanding of API integration and management.
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DDI & DNS
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Experience with DDI (DNS, DHCP and IP Address Management) platforms.
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Experience withEfficientIPis highly desirable.
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Experience withInfoblox, BlueCat, or equivalent DDI solutions will also be considered.
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Knowledge of Cloud DNS services such asAWS Route 53or equivalent.
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Qualifications & Certifications
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Degree in Information Technology, Computer Science, Engineering, or equivalent experience.
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Minimum5 years of industry experiencein enterprise network design, engineering, and infrastructure.
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Vendor certifications in DDI and Security technologies are highly regarded.
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AWS, Azure, or Google Cloud
networking/security
certifications are desirable.
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CISSPor other recognised Cybersecurity certifications are advantageous.
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Certifications in Fortinet, Check Point, EfficientIP, Infoblox, or related technologies are highly desirable.
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Additional Technical Knowledge
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Physical and virtual server configuration.
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Network packet capture and troubleshooting tools.
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Network monitoring and operational resilience platforms.
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Microsoft Office Suite.
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Microsoft Visio and MS Project.
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Atlassian Confluence.
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Soft Skills
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Excellent customer service and stakeholder management skills.
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Strong written and verbal communication skills.
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Ability to remain calm and effective under pressure.
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Robust analytical and problem-solving abilities.
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Ability to collaborate effectively within cross-functional teams.
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Highly organised, self-disciplined, and able to work with minimal supervision.
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Ability to manage multiple projects and technical engagements simultaneously.
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Strong listening and interpersonal skills.
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Australian Permanent Resident.
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Experience in a similar role
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5+ years of relevant experience.
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Job Features
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Job Category
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Technical

📌 Senior Corporate Networks Specialist -Sydney, New South Wales, Australia
🏢 Axiom Technologies
📍 New South Wales