Senior Threat Intelligence & Attack Researcher

Optus; Canberra; Hybrid; AUD 150,000 - 190,000; Full time

Benefits offered by this job

Employee discounts

Flexible work arrangement

Connected days leave

Parental leave (16 weeks)

Wellbeing support

Diversity & inclusion networks

Counselling services

Job summary

Optus is seeking a Senior Threat & Attack Researcher to join our cyber security team in Canberra. You will lead research, track threats, and produce threat intelligence to inform risk decisions across the organisation.

You will mentor juniors, develop proactive countermeasures, and collaborate with incident response and partners to strengthen our defences. The role demands deep knowledge of threat landscapes, strong communication, and the ability to operate under pressure.

Qualifications

• 5+ years of experience in Cyber Threat Intelligence or a related cyber security role.
• Detailed knowledge of offensive operations, geopolitical drivers, and attack techniques.
• Proficiency with scripting languages such as Python for automation.
• Tertiary qualifications in CS/InfoSec.
• Strong interpersonal and communication skills with the ability to distill technical concepts for diverse audiences.

Responsibilities

• Researching the TTPs, tooling, and infrastructure of threats relevant to Optus.
• Finding opportunities to detect, disrupt and deny threat activity in a proactive manner.
• Producing intelligence products for a range of stakeholders to enable threat-informed decisions.
• Providing assessments on the broader threat landscape to maintain situational awareness amongst stakeholders and senior leadership through regular briefings.
• Analysing malware samples and code to understand their functionality, behaviour, propagation methods, and evasion techniques.
• Leading team research and capability uplift initiatives.
• Instilling a culture of excellence, integrity, and professionalism; high standards in cyber security.
• Identifying and tracking significant threats to the organisation and guiding countermeasures.
• Providing threat intelligence support to incident response investigations.

Skills

Threat intelligence

Python scripting

Communication skills

Mentorship

Education

Tertiary qualifications in computer science / cyber security

Tools

Python

Job description

Optus is seeking a Senior Threat & Attack Researcher to join our cyber security team in Canberra. You will lead research, track threats, and produce threat intelligence to inform risk decisions across the organisation.

You will mentor juniors, develop proactive countermeasures, and collaborate with incident response and partners to strengthen our defences. The role demands deep knowledge of threat landscapes, strong communication, and the ability to operate under pressure.