Senior Security Engineer - Digital Certificates (PKI)

Telstra; Melbourne; Hybrid; AUD 100,000 - 130,000; Full time

Benefits offered by this job

Flexible work options

16 weeks paid parental leave

Free Telstra mobile plan

Laptop/device allowance

Purchased annual leave

Professional development programs

Discounts on products and services

Job summary

A leading telecommunications company seeks a Senior Security Engineer to enhance security controls within their network. The ideal candidate will have strong experience with PKI, digital certificate management, and automation. This role supports flexible work arrangements and offers a comprehensive benefits package, emphasizing work-life integration and professional growth.

Qualifications

• Strong experience with PKI and digital certificate management.
• Technical background in Windows, Linux, Active Directory.
• Exposure to scripting and automation (Bash, PowerShell, Python).

Responsibilities

• Lead implementation of enterprise-wide certificate management platforms.
• Embed security controls into infrastructure designs.
• Develop security standards and risk assessments.

Skills

PKI and digital certificate management

Windows

Linux

Active Directory

Networking

Scripting

AWS

Azure

Job description

Overview

Join Telstra's Endpoint & Identity Security team as a Senior Security Engineer - Digital Certificates (PKI), where you'll play a pivotal role in shaping security controls within solution designs and delivering a secure, resilient network experience for our customers.

What You'll Do

• Lead implementation and support of enterprise-wide certificate management platforms.


• Embed security controls and crypto governance into infrastructure and network designs.


• Work with and support identity-related systems such as AD CS, AppViewX, EJBCA, and Thales HSM to deliver secure and scalable PKI services.


• Develop security standards, remediation strategies, and risk assessments aligned with compliance frameworks.


• Build automation and scripting solutions to streamline certificate lifecycle management.


• Mentor and collaborate with engineers to uplift PKI and certificate practices across the organisation.


• Participate in the on-call support roster for critical incidents, ensuring timely response and coverage during escalations and high-priority events.

What You Bring

• Strong experience with PKI and digital certificate management


• Knowledge in PKI & Identity-related systems such as Active Directory Certificate Services (ADCS), AppViewX, EJBCA, Thales HSM.


• Strong technical background across Windows, Linux, Active Directory, VMware, Kubernetes, F5, firewall and load balancers and networking environments.


• Understanding of certificate-based authentication and TLS/SSL best practices.


• Hands-on exposure to scripting and automation using Bash, PowerShell, Python, or similar languages.


• Knowledge of cloud platforms (AWS, Azure) and container technologies like Kubernetes.


• Ability to lead or contribute to risk assessments, compliance reviews, and policy development.


• Strong stakeholder engagement and communication skills.


• Ability to undergo and provide a valid standard police check.

Bonus Experience

• Exposure to DevOps/CI-CD environments and integrating certificate automation into pipelines.


• Familiarity with crypto agility strategies and emerging standards.


• Experience with Thales HSM and hardware-based key protection solutions.


• Understanding of network principles such as LTMs, GTMs.

Why Telstra?

• Flexible work - hybrid and remote options to support work-life integration.


• 16 weeks paid parental leave - for both primary and secondary carers.


• Free Telstra mobile plan - stay connected on us.


• Laptop/device allowance - renewed every 2 years.


• Purchased annual leave - more time when you need it.


• Professional development programs - grow your career with us.


• Discounts - on Telstra products and services.

If you're passionate about digital trust, certificate automation, and cyber resilience, apply today and help shape a secure, connected future at Telstra.

We're committed to building a diverse and inclusive workforce in all its forms. We encourage applications from people of all backgrounds, including those from diverse gender, cultural and linguistic communities, and individuals living with a disability.

To learn more about how we support our people, including accessibility adjustments during the recruitment process, visit: tel.st/thrive

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Information Technology

Industries

Information Services