Cyber Security Analyst

Telstra Corporation; Sydney; On-site; AUD 90,000 - 130,000; Full time

Job summary

Telstra Corporation is seeking a Cyber Security Analyst to join our Security Operations Centre in Sydney. You will monitor, triage and respond to security events, investigate phishing campaigns, and support incident response across the full lifecycle.

You will analyze threats, enhance detection capabilities, and contribute to automation and documentation efforts to improve service maturity. The role combines hands-on security work with stakeholder communication and knowledge sharing, enabling

Qualifications

• Demonstrated experience in SOC, Cyber Defence, Incident Response or MSS environments.
• Experience investigating cyber security alerts, incidents, phishing campaigns, and threat activity.
• Strong understanding of incident response methodologies, threat detection, and security operations.
• Experience using enterprise security monitoring, SIEM, SOAR, EDR, and threat intelligence platforms.
• Strong analytical, investigative, and problem-solving skills with the ability to prioritise security events.
• Experience preparing technical reports, incident summaries and recommendations for stakeholders.
• Ability to work in a team while managing competing operational priorities.
• Strong written and verbal communication skills for technical and non-technical stakeholders.
• Experience contributing to continuous improvement initiatives, automation, documentation and operational uplift.
• Familiarity with NIST Incident Response and ITIL Service Management principles.

Responsibilities

• Monitor, triage, investigate and respond to cyber security events, alerts and incidents.
• Perform phishing analysis and response activities, including investigation, remediation and stakeholder communication.
• Support incident response activities across the full incident lifecycle, from detection through to recovery and lessons learned.
• Conduct threat analysis, threat hunting and security monitoring to identify and mitigate cyber risks.
• Develop and enhance detection capabilities through rule tuning, process improvement and operational optimisation.
• Contribute to continuous improvement initiatives focused on automation, documentation and service maturity.
• Produce operational reports, investigation findings and technical recommendations for stakeholders.
• Collaborate with internal and customer teams to maintain service levels and improve security outcomes.
• Participate in knowledge sharing, mentoring and cross-skilling across the SOC team.
• Support the evolution of the Security Operations Centre capability.

Skills

SOC operations

Incident response

Threat analysis

Phishing analysis

Security monitoring

Stakeholder communication

Automation & process improvement

Documentation

Threat hunting

Education

Cybersecurity degree

Cybersecurity certifications

Tools

SIEM

SOAR

EDR

Threat intelligence platforms

Job description

Employment Type Permanent

Closing Date 28 Oct 2026 11:59pm

Job Title Cyber Security Analyst

Job Summary The successful candidate will possess practical experience in Security Operations Centre, Incident Response, Cyber Defence, or Managed Security Services environments and be comfortable investigating security events, analysing threats, and responding to incidents across their lifecycle. In addition to operational delivery, the role is expected to contribute to continuous improvement initiatives, operational documentation, knowledge sharing, and service optimisation activities that enhance the maturity, efficiency, and effectiveness of the overall security operations capability.

Job Description

What you'll do:

• Monitor, triage, investigate and respond to cyber security events, alerts and incidents.
• Perform phishing analysis and response activities, including investigation, remediation and stakeholder communication.
• Support incident response activities across the full incident lifecycle, from detection through to recovery and lessons learned.
• Conduct threat analysis, threat hunting and security monitoring activities to identify and mitigate cyber risks.
• Develop and enhance detection capabilities through rule tuning, process improvement and operational optimisation.
• Contribute to continuous improvement initiatives focused on automation, efficiency, documentation and service maturity.
• Produce operational reports, investigation findings and technical recommendations for stakeholders.
• Collaborate with internal and customer teams to maintain service levels and improve security outcomes.
• Participate in knowledge sharing, mentoring and cross-skilling activities across the wider SOC team.
• Support the ongoing evolution and effectiveness of the Security Operations Centre capability.

About you:

You are technically curious and delivery-focused, and you enjoy working through customer security problems. You are comfortable contributing to both hands-on technical work and stakeholder-facing activities, and you can explain security concepts clearly to technical and non-technical audiences. You take direction well, ask good questions, and are motivated to grow into greater ownership over time.

Required Skills and Experience

• Demonstrated experience working within a Security Operations Centre (SOC), Cyber Defence, Incident Response, or Managed Security Services environment.
• Experience investigating and responding to cyber security alerts, incidents, phishing campaigns, and threat activity.
• Strong understanding of incident response methodologies, threat detection, and cyber security operations.
• Experience using enterprise security monitoring, SIEM, SOAR, EDR, and threat intelligence platforms.
• Strong analytical, investigative, and problem-solving skills, with the ability to assess and prioritise security events.
• Experience preparing technical reports, incident summaries, and recommendations for stakeholders.
• Ability to work effectively within a team environment while managing competing operational priorities.
• Strong written and verbal communication skills, with the ability to engage with both technical and non-technical stakeholders.
• Experience contributing to continuous improvement initiatives, including process optimisation, documentation, automation, and operational uplift.
• Familiarity with cyber security frameworks and best practices, including NIST Incident Response and ITIL Service Management principles.
• Experience operating within service-based environments with defined service levels, governance requirements, and customer expectations.
• Ability to work in a fast-paced operational environment supporting critical business services and cyber security outcomes.

Desirable Qualifications

• CompTIA Security+ CompTIA Cybersecurity Analyst (CySA+) Microsoft SC-200: Security Operations Analyst Splunk Core Certified Power User Splunk Enterprise Security Certified Administrator Splunk SOAR (Phantom) Certified Automation Developer or Administrator Microsoft SC-300 or equivalent Identity and Access Management certification ITIL Foundation Certification Relevant tertiary qualification in Cyber Security, Information Technology, Computer Science, Engineering, or a related discipline.

We’re an iconic Aussie brand with a global footprint. From our earliest days in the Postmaster General’s Office to the Australian icon we are today, the heart of Telstra has never changed. We’ve always been committed to being a great place to work as we make the world a better place too. Working at Telstra, we all have a why. Whether it’s endless career opportunities, an amazing work-life balance or being able to make a difference, we all know why we’re motivated to be our best here. Our people find purpose and pride in being part of Telstra, because we support the things that matter most. We are committed to making it easy for everyone to apply. If you require accessibility support or adjustments during the recruitment process, please send an email to Disability and Accessibility inbox. [e-mail]. In a business as big and diverse as ours, there’s a huge breadth of career paths available. Uncover opportunities, broaden your experience, and discover the many areas of our organization there is to explore. > Explore our teams https://www.telstra.com.au/careers/our-teams