Technical Specialist - Managed Networks

Singtel Group; Sydney; Hybrid; AUD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible working arrangements

Office campus facilities

Parental Leave

Job summary

The Technical Specialist at Optus is responsible for the operational delivery, support, and continuous improvement of Managed Network Services for enterprise customers, with Aruba-based networking including SD‑WAN, switching, wireless, and ClearPass. You will lead incident resolution, problem management, network changes, and customer engagement while collaborating with internal teams and clients.

You will drive deployments, site onboarding, edge device configuration, orchestrator integration,

Qualifications

• Advanced Aruba SD‑WAN expertise and troubleshooting in overlay/underlay networks.
• Strong Aruba LAN/Wi‑Fi, switching, routing, and NAC experience.
• ITIL-based incident, problem, change and transition management knowledge.

Responsibilities

• Deliver exceptional customer support for Aruba SD‑WAN, LAN and Wi‑Fi, resolving incidents within SLA.
• Own major incidents and escalations with accurate ServiceNow updates.
• Ensure governance by documenting and following ITIL processes.
• Deploy, onboard sites, configure edge devices, and perform firmware updates.
• Drive automation and continuous improvement across managed networks.

Skills

Aruba SD-WAN

Aruba switching

Aruba wireless

ClearPass

Python

Ansible

ITIL

Incident management

Networking

Orchestrator

Education

Engineering/ICT Degree

Tools

Aruba Orchestrator

Aruba Central

Job description

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Optus is an Australian telecommunications company, delivering more than 11 million services to our customers every day across mobile, broadband and digital solutions.

The Technical Specialist is responsible for the operational delivery, support, and continuous improvement of Managed Network Services for Optus Enterprise customers, ensuring network stability, performance, and compliance with ITIL service management practices and SLAs. The role provides expert technical leadership in Aruba-based networking environments, including SD-WAN, switching, wireless, and ClearPass technologies, leading incident resolution, problem management, network changes, and customer engagement while collaborating closely with internal teams and enterprise clients.

What You'll Do

• Deliver exceptional customer support and service outcomes by managing Aruba SD-WAN, LAN and Wi‑Fi environment, resolving incidents within SLA, and maintaining clear, proactive communication with customers and stakeholders.
• Own and prioritise critical incidents and customer issues, ensuring major network faults, sensitive customer events, and escalations are managed effectively, with accurate updates maintained in ServiceNow.
• Ensure compliance and operational governance by maintaining accurate documentation, adhering to internal standards, and following ITIL‑based incident, problem, change, and transition management processes.
• Execute and support operational activities, including deployments, site onboarding, edge device configuration, orchestrator integration, firmware upgrades, policy updates, routing changes, and complex MACs.
• Drive continuous improvement and operational excellence through root cause analysis, automation of routine tasks, process enhancements, and optimisation of managed network and hosting solutions.
• Maintain technical expertise and knowledge leadership by keeping documentation current, contributing to knowledge bases, sustaining industry certifications, building strategic partnerships, and staying current with emerging networking technologies.

What You Bring

• Advanced Aruba SD‑WAN expertise, including troubleshooting overlay/underlay networks, routing, tunnel connectivity, QoS, Business Intent Overlays, firewall policies, and managing changes, upgrades, and recovery activities through Aruba Orchestrator.
• Strong Aruba networking capabilities, with hands‑on experience supporting and configuring Aruba switching, routing, Central On‑Premises, VLANs, Layer 2/3 networks, redundancy, performance monitoring, and software lifecycle management.
• Specialist Aruba wireless knowledge, including Mobility Controller/Conductor and ClearPass, with expertise in WLAN services, authentication, NAC, roaming, security, client onboarding, performance optimisation, and wireless troubleshooting.
• Broad technical and operational experience, including scripting and automation (Python/Ansible), managed services support, escalation management, advanced problem solving, network security, encryption, and large‑scale enterprise solution delivery.
• Strong communication and leadership skills, with the ability to collaborate effectively, mentor others, manage stakeholder relationships, perform under pressure, think creatively, and maintain a customer‑focused approach.
• Relevant qualifications and industry certifications, including an Engineering/ICT Degree or Advanced Diploma, Aruba Certified Professional – Switching (ACP‑S), Aruba Certified SD‑WAN Deployment Professional (ACSDP), and Aruba Certified Mobility Associate/Professional (ACMA/ACMP).

The good stuff…

• Competitive remuneration and colleague discounts. Make life easier (and more affordable) with $80 monthly credit and 25% off Optus products and outstanding shopping discounts with our retail partners.
• Flexible working arrangements with opportunities to work three days in the office, two days remote or home.
• Vibrant and collaborative office campus that includes cafes, convenience store, chill out zones, GP, post office, gym and on‑site childcare centre.
• Competitive leave policies, including additional ‘Connected’ days to focus on culture, family, health, community, or whatever’s important to you.
• We support growing families with inclusive, carer‑neutral paid Parental Leave of up to 16 weeks.
• Direct your own development and build future‑ready skills with Optus U’s industry‑focused micro‑credentials, developed with La Trobe and Macquarie Universities.
• Build meaningful connections through colleague‑led networks and diversity initiatives including Culture Connect, Elevate Women, Disability Network and Express Yourself (LGBTQIA+).
• Put your wellbeing first with free access to counselling and support services, 24/7 — in‑person, by phone, SMS, or video.
• Free Optus bus from Macquarie University Metro Station (every 6‑8 minutes); morning and afternoon.

At Optus, we are strengthened by others and that means valuing diversity and saying ‘yes’ to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. We also want to do our best to make our recruitment process inclusive. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email [e-mail] or call 1800 309 170.