Senior Network Security Engineer at Westpac Group

Sydney, New South Wales, Australia -

Full Time

Start Date

Immediate

Expiry Date

04 May, 26

Salary

0.0

Posted On

03 Feb, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Network Security, F5 GTM, F5 LTM, Enterprise Firewall Technologies, Intrusion Prevention Systems, Juniper SRX, Fortinet FortiGate, Automation, Scripting, ITIL Processes, ServiceNow, Python, Ansible, CI/CD Technologies, MongoDB, SolarWinds

Industry

Financial Services

Description

Create your best future and join Westpac a Senior Network Security Engineer. What’s the role? An exciting opportunity exists for a Senior Network Engineer to join the infrastructure team within Group Technology. In this role, you will take technical ownership of critical network services across the organisation, ensuring resilient, secure, and high‑performing connectivity for all business areas of the bank. You will work closely with fellow Senior Service engineers and the Secure Network Services (SNS) group to deliver proactive service management, minimise downtime, enhance network reliability, and strengthen overall security posture. As a technical leader, you will guide the planning, implementation, and continuous improvement of enterprise network solutions. This position requires strong collaboration with key stakeholders across Group Technology to ensure effective execution of ITIL‑aligned processes—including Incident, Change, Problem Management, Service Catalogue maintenance, and CVE‑based Vulnerability Management. You will play a key role in overseeing complex escalations, driving root cause analysis, and ensuring operational excellence. Additionally, you will be responsible for producing and presenting detailed reporting on SLA/KPI performance, network stability, and customer satisfaction, while offering actionable insights to support continuous service improvement across our network ecosystem. What do I need? Essential: At least 5 years supporting complex networks within large organizations. Extensive experience working in complex enterprise network environments. Strong technical capability with F5 GTM/LTM for advanced load‑balancing and traffic management. Expertise in enterprise firewall technologies and Intrusion Prevention Systems (IPS). Hands-on knowledge of Juniper SRX and Fortinet FortiGate, including IPS tuning, policy optimisation, and performance refinement. Desirable: Skilled in automation and scripting to enhance network telemetry, streamline operations, and support orchestration platforms. Demonstrate ability to combine deep technical skills with automation to deliver secure, scalable, and efficient network solutions. Knowledgeable with enterprise networking tools (SolarWinds, Elastic, Grafana, Splunk and MongoDB) Familiarity with ITIL processes—especially change management—and ServiceNow. Proven background in developing automation solutions that interface with various tools and platforms via APIs or scripting. Experience working with MongoDB, Jenkins, Terraform, SolarWinds, and Elastic. Knowledgeable in Python, specifically for automation and scripting tasks. experience using Ansible, as well as CI/CD technologies such as Jenkins and/or GitHub Actions. Relevant vendor certifications such as CCNA, JNCIA, or F5 201. Why join us? We’re obsessed with becoming our customers' #1 banking partner for life and we’re looking for people who are passionate about helping us achieve that goal. In return, we’re committed to making Westpac the best place to work in the country. Here are just a few of the ways we’re already doing that: Special offers on banking products and discounts from top brands, including generous employee-only mortgage rates! Flexible work arrangements to help you achieve a greater work/life balance, and a variety of leave options including Culture, Lifestyle and Wellbeing leave. Tailored learning and development opportunities to help your grow your career within the bank. Lots of opportunities to ‘give back’ to the Community by getting involved in our many volunteering initiatives. Create your future today To get started, simply click on the APPLY or APPLY NOW button We’re all about creating a supportive and inclusive community. We welcome everyone – no matter your age, gender, background, or abilities. We also provide additional support to welcome our veterans, Indigenous Australians and neurodiverse community. If you need any adjustments during the recruitment process, you can find out more information and additional contact details by visiting the "People with Disability and/or needing Accessibility Requirements" page on our website. #LI-Hybrid.

Responsibilities

The Senior Network Security Engineer will take technical ownership of critical network services, ensuring secure and high-performing connectivity. They will oversee complex escalations and drive root cause analysis while producing detailed reports on network performance.