Senior Security Engineer - Firewall Security, Telstra

Telstra

Location:
Australia, Flexible

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

As a Senior Security Engineer in Telstra's Security Engineering team, you'll help shape and protect the future of our technology environment. You'll design and implement security controls across our DevOps pipelines, cloud infrastructure, and enterprise networks, ensuring security is embedded at every layer. You'll work hands-on in a fast-paced Agile environment alongside engineering and DevOps teams to assess and reduce risk across our platforms.

Job Responsibility:

Partner with engineering and platform teams to embed security into solution design and delivery lifecycles
Lead the implementation of security controls within cloud, DevOps, and network environments
Provide technical consulting and design input across security and network platforms
Support deployments and changes including some flexibility for after-hours work
Operate as a subject matter expert, working autonomously and collaboratively within an Agile team
Contribute to the evaluation and integration of emerging technologies, tools, and best practices

Requirements:

5–8+ years of experience in network security, cloud security, or infrastructure security roles
Strong experience with one or more major firewall platforms (e.g. Palo Alto, Cisco FTD, Juniper, Checkpoint)
Solid hands-on skills in routing & switching (e.g. OSPF, BGP, VLANs, port channels, VRFs)
Familiarity with cloud environments (e.g. AWS, Azure) and CI/CD or DevOps security practices
Experience working in Agile environments and collaborating across multidisciplinary teams
Degree in Computer Science, Engineering, or a related field (or equivalent experience)

Nice to have:

Exposure to SR-MPLS or carrier-grade networking
Certifications such as CISSP, CISM, CCNP Security, or similar
Experience with automation tools (Terraform, Ansible) or scripting for security use cases

What we offer:

Flexible work – balance your work and life with hybrid and remote options
16 weeks paid parental leave – for both primary and secondary carers
Free Telstra mobile plan
Device allowance – refreshed every 2 years
Discounts – on Telstra products and partner services
Professional development – ongoing opportunities to grow and upskill
Purchased annual leave – more time when you need it

Additional Information:

Job Posted:
August 28, 2025

Expiration:
September 12, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Senior Security Engineer - Firewall Security