Senior Cyber Security Technologist at Telstra

Employment Type

Permanent

Closing Date

7 Sept 2025 11:59pm

Job Title

Senior Cyber Security Technologist

Job Summary

As a Security Architecture - Senior Architect, you play a critical role in driving the definition and governance of security architectures and corresponding security standards into major initiatives contained within Telstra’s strategic investment program.

You use your deep expertise in cyber security, technology and business to provide security domain thought leadership, architectural direction, security governance, security risk assessment / mitigation that enables the successful delivery of Telstra’s strategic business and security outcomes in alignment with Telstra’s Cyber Security Strategy.

Job Description

The Opportunity

As a senior technical lead, you will play a pivotal role in enhancing our security monitoring capabilities—providing strategic direction, driving continuous improvement, and leveraging your technical expertise to support and mentor detection engineers.

This role blends hands-on technical expertise with leadership responsibilities, driving security outcomes across multiple teams and platforms. You will also provide technical leadership and guidance to other members of the team and provide insights to help develop strategic objectives for the team to aim for in the medium to long-term. You will work closely with internal stakeholders to shape strategy, provide guidance, and lead initiatives that enhance our security posture.

Responsibilities:

• Serve as a technical lead across cybersecurity initiatives, balancing hands-on work with strategic leadership (50/50 split).

• The role involves applying your technical skills within Telstra's SIEM solution (Splunk Enterprise Security) to identify gaps in security logging and monitoring coverage and providing practical solutions to improve Telstra's security posture.

• Engage with internal teams to provide expert guidance, advice, and support on security engineering practices

• Develop and drive security strategy aligned with business and operational goals

• Collaborate across cross-functional teams to deliver desired security outcomes

• Lead and manage end-to-end technical projects, ensuring timely and effective delivery

• Your ability to collaborate with your peers and stakeholders across Telstra will also be critical in leading initiatives aimed at helping business units uplift their security controls and coverage.

• Mentor, train, and support team members to build capability and foster growth

• Design and implement security use cases and detection engineering solutions

• Maintain and tune enterprise security tools to ensure optimal performance

• Leverage automation and SOAR platforms to streamline security operations

• Apply data engineering expertise to enhance threat detection and response capabilities

Required Skills & Experience:

• 3+ years of hands-on experience with Splunk

• 3+ years of cybersecurity experience in enterprise environments

• Strong background in automation and SOAR technologies

• Proven experience with security tool tuning, maintenance, and optimization

• Expertise in data engineering within security contexts

• Demonstrated ability in security use case development and detection engineering

• Experience leading technical projects from concept to delivery

• Track record of mentoring and training others in technical domains

Preferred Skills:

• Proficiency in software engineering practices

• Experience building and maintaining cloud security infrastructure

• Familiarity with threat modelling and techniques to improve security posture

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