Security Engineering Engineer

Employment Type

Permanent

Closing Date

7 July 2026 11:59pm

Job Title

Security Engineering Engineer

Job Summary

As a Security Engineering - Engineer, you thrive on collaborating with your team to design and deliver superior security and network experiences for our customers. You apply broad knowledge in the Information, Engineering and Cyber Security Domains to help shape the security controls required within solution designs (both people, process and technical) and support your team to identify, communicate and help treat corresponding security risks.

Your continuous learning and improvement mindset and collaboration skills are critical to success in this role, as you continue to deepen your knowledge and expertise in the Information, Engineering and Cyber Security domains – including security technologies, cloud and corporate networks.

Job Description

We're an iconic Aussie brand with a global footprint. Our purpose is to build a connected future so everyone can thrive. We're all about providing the best experience and delivering the best tech on the best network.

This includes making Telstra the place you want to work.

For you, that means a having career that grows with you, and working with a team powered by human connection that prioritises well-being and choice.

Here’s what you can expect from us

• Flexible working. Wherever you live, choose where, when, and how you work so you can be at your best.
• There when life happens. From Gender Affirmation Leave to Telstra’s Additional Leave Day, we give you time to spend away from work when you need it most.
• Pay for performance. We recognize outstanding contributions through our generous incentive programs.
• Parental Leave. A gender-equal policy for parents so you can choose how and when you take your leave (16 weeks full pay or 32 weeks half pay). Receive superannuation contributions on paid and unpaid parental leave.
• Unlimited learning. Level up your credentials with access to 17,000 learning programs. Learn ‘on the job’ and achieve university credits toward degrees and Master's programs.
• Global presence. With a global presence across 22 countries, there are many opportunities to work where we do business.
• Extra perks. Receive 25% off Telstra products and services, plus unlock exclusive discounts from over 240 brands and partners.

Make a Difference

The Network Security Engineer is responsible for the operation, maintenance, and continuous improvement of Telstra’s enterprise DNS and network security platforms within the Enterprise Data Network (EDN). The role focuses on ensuring secure, reliable, and scalable network services, supporting critical infrastructure and business operations.

Key Responsibilities

This is how you’ll bring the purpose of your role to life.

• Manage and support enterprise DNS/DHCP platforms (including zone management, key management, and migrations)

• Perform troubleshooting and root cause analysis for complex DNS and network security incidents

• Implement and support network changes, including migrations and platform upgrades

• Maintain and enhance DNS security controls (e.g. DNSSEC, threat mitigation techniques)

• Support day-to-day BAU operations including incident response and participation in on-call/recall roster

• Collaborate with cross-functional teams (network engineering, security, architecture) on service improvements

• Contribute to automation and process optimisation initiatives within network operations

• Document configurations, processes, and incident learnings

About you

To be successful in the role, you'll bring skills and experience in:

Required Experience

• Minimum 2–4 years’ experience in network engineering, IT infrastructure, or network security

• Hands-on experience in operational support of enterprise network environments

• Experience working in incident-driven environments with exposure to troubleshooting and service restoration

Technical Skills

• Strong understanding of:

  • DNS and DHCP services (enterprise scale preferred)

  • Networking fundamentals (TCP/IP, routing, switching)

• Hands-on experience with:

  • DNS platforms (e.g. Infoblox or equivalent)

  • Cisco networking technologies (routers, switching, SD-WAN exposure desirable)

  • Linux/Unix-based systems (basic administration)

• Familiarity with:

  • DNS security concepts (e.g. DNSSEC, threat mitigation)

  • Automation/scripting (Python, Bash or similar – basic level acceptable)

Telstra Systems / Environment

• Exposure to Telstra EDN ecosystem and internal network platforms (desirable)

• Experience working within enterprise change management and incident management processes

Qualifications

• Bachelor’s degree in Information Technology, Computer Science, or related field (or equivalent practical experience)

• Industry certifications such as CCNA (required) and CCNP (desirable)

Behavioural / Professional Skills

• Strong analytical and problem-solving skills

• Ability to work collaboratively within technical teams

• Effective communication skills for incident updates and stakeholder engagement

• Proactive mindset with a focus on continuous improvement and learning

If you are passionate to succeed as part of an agile and experienced team, we welcome you to apply!
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We encourage applications from people of all abilities and backgrounds - including Aboriginal and Torres Strait Islander peoples, the LGBQTI+ community, linguistically diverse, and people living with disability. When you apply, you can choose to note the pronouns you use and /or any reasonable adjustments needed to take part equitably during the interview process. Visit
www.telstra.com.au/careers/diversity-and-inclusion or email us at DisabilityandAccessibility@team.telstra.com noting your preferred method of contact

Recruitment Start Date:09/06/2026

Recruitment End Date: 07/07/2026