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 www.axiomtechnologies.com

n

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.

n

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.

n

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.

n

Key Responsibilities

n

n
- Design and deploy corporate network and security solutions across on-premises and Cloud environments.
n
- Develop and maintain detailed technical solution designs, architecture documents, and implementation documentation.
n
- Work closely with business stakeholders, Network/Security/Application Architects, and project teams to understand requirements and deliver appropriate solutions.
n
- Prepare detailed configuration, system integration, and implementation/change plans.
n
- Conduct peer reviews and ensure changes are implemented with minimal risk and disruption.
n
- ProvideTier 3 supportfor complex network and security incidents.
n
- Perform Root Cause Analysis (RCA) and Problem Incident Reviews (PIR).
n
- Troubleshoot and resolve high-impact technical issues across network and security platforms.
n
- Work with vendors to suspend issues, identify solutions, and implement fixes or workarounds.
n
- Conduct pre-upgrade testing, staging, and laboratory testing where required.
n
- Plan and execute network upgrades and change requests, including stakeholder engagement, approvals, and maintenance windows.
n
- Participate in after-hours network changes, typically commencing between7:00 PM and 11:00 PM,



with activities lasting approximately1-6 hoursdepending on complexity.
n
- Troubleshoot issues arising during upgrades and coordinate vendor support when required.
n
- Prepare operational handover documentation and ensure successful transition to Operations.
n
- Develop work instructions, provisioning guides, and other operational support materials.
n
- Provide technical feedback and recommendations to improve future network upgrades and operational processes.
n

n

Technical Skills & Experience

n

Network & Infrastructure

n

n
- Extensive hands-on experience designing and configuring enterprise network and security infrastructure.
n
- Strong knowledge ofLAN, WAN, and Data Centre networking.
n
- Expert-level experience withCisco routing and switchingtechnologies.
n
- Strong understanding ofOSPF and BGP.
n
- Experience withNAT, DNS, DHCP, and IP Address Management (IPAM).
n
- Knowledge of Software Defined Networking (SDN).
n

n

Robust experience with networking services across one or more of the major Cloud platforms:

n

n
- AWS:Direct Connect, VPC, Transit Gateway and related networking services.
n
- Microsoft Azure:ExpressRoute, vNet, Virtual WAN (vWAN), vHub and related services.
n
- Google Cloud:Partner Interconnect, VPC and related networking services.
n

n

Experience acrossAWS, Azure, and GCPis highly desirable.

n

Network Security

n

n
- Strong experience with enterprise firewall technologies and security platforms.
n
- Preferred firewall experience:n n
- Fortinet
n
- Check Point
n
- Palo Alto, Cisco, or other major firewall platforms
n

n
- Experience in firewall policy design and implementation.
n
- Knowledge of IDS/IPS technologies.
n
- Experience with firewall policy management tools such asAlgoSec FireFlowor equivalent.
n

n





Automation & Infrastructure as Code

n

n
- Experience with automation and Infrastructure as Code (IaC) tools such as:n n
- Terraform
n
- Ansible
n
- GitLab
n

n
- Understanding of API integration and management.
n

n

DDI & DNS

n

n
- Experience with DDI (DNS, DHCP and IP Address Management) platforms.
n
- Experience withEfficientIPis highly desirable.
n
- Experience withInfoblox, BlueCat, or equivalent DDI solutions will also be considered.
n
- Knowledge of Cloud DNS services such asAWS Route 53or equivalent.
n

n

Qualifications & Certifications

n

n
- Degree in Information Technology, Computer Science, Engineering, or equivalent experience.
n
- Minimum5 years of industry experiencein enterprise network design, engineering, and infrastructure.
n
- Vendor certifications in DDI and Security technologies are highly regarded.
n
- AWS, Azure, or Google Cloud networking/security certifications are desirable.
n
- CISSPor other recognised Cybersecurity certifications are advantageous.
n
- Certifications in Fortinet, Check Point, EfficientIP, Infoblox, or related technologies are highly desirable.
n

n

Additional Technical Knowledge

n

n
- Physical and virtual server configuration.
n
- Network packet capture and troubleshooting tools.
n
- Network monitoring and operational resilience platforms.
n
- Microsoft Office Suite.
n
- Microsoft Visio and MS Project.
n
- Atlassian Confluence.
n

n

Soft Skills

n

n
- Excellent customer service and stakeholder management skills.
n
- Strong written and verbal communication skills.
n
- Ability to remain calm and effective under pressure.
n
- Strong analytical and problem-solving abilities.
n
- Ability to collaborate effectively within cross-functional teams.
n
- Highly organised, self-disciplined, and able to work with minimal supervision.
n
- Ability to manage multiple projects and technical engagements simultaneously.
n
- Strong listening and interpersonal skills.
n
- Australian Permanent Resident.
n

n

Experience in a similar role

n

n
- 5+ years of relevant experience.
n

n

Job Features

n

Job Category

n

Technical

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