In-Demand Cyber security engineer Jobs in Parramatta, Nsw

Threat Detection Engineer
Optus —Sydney NSW
- AI
- Communication skills
- Parental leave
- Employee discount
3d
DevSecOps - Cloud Platform Engineer
CAE Inc. —Homebush NSW
- Azure
- Computer Science
- DevOps
- Parental leave
1d
Platform and Auxiliary Systems Engineer | Defence Maritime
Amentum —Sydney NSW
- Full-time
- Analysis skills
- Organisational skills
- Employee discount
Quick Apply
2d
Solutions Lead
Security Centric —Sydney NSW
- Azure
- AWS
- Leadership
Deployment Engineer
Qoria —Sydney NSW
- Azure
- PMP
- Parental leave
Senior MSP Engineer (L3) | Escalations, Projects + Pre Sales
HD IT —Parramatta NSW
- $115,000 - $135,000 a year
- Full-time
- Hybrid work
- Azure
- SharePoint
- AI
Quick Apply
Senior IT Systems Engineer
The Missing Link —Sydney NSW
- Full-time
- Hybrid work
- Azure
- Bachelor's degree
- SharePoint
- Free food
Quick Apply
Senior Cyber Security Engineer
Universal Music Group —Sydney NSW
- Weekend availability
- Azure
- Research
- Administrative experience
Cloud Security Engineer
Nuix —Sydney NSW
- Hybrid work
- Azure
- AWS
- Scripting
Principal Security Architect - Cyber Platforms
Reserve Bank of Australia —Sydney NSW
- Full-time
8d
DevOps Engineer â€“ Join a Mission-Driven Cyber Security & Defence Firm
The Argyle Network —Sydney NSW
- $140,000 a year
- Full-time
- DevOps
- Engineering
- Office
Senior Cyber Security Engineer
Linde Material Handling Pty. Ltd. —Huntingwood NSW
- Full-time
- Hybrid work
- Azure
- Management
- Master's degree
- Employee assistance program
- Gym membership
Senior Network Security Engineer
HCF —Sydney NSW
- Full-time
- Azure
- AWS
- Scripting
- Parental leave
- Pet insurance
Senior SOC Security Engineer
Thales —Barangaroo NSW
- Full-time
- Hybrid work
- Azure
- Master's degree
- Parental leave
Analytics Engineer
UpGuard —Sydney NSW
- $1,500 a month
- Full-time
- Remote
- CRM software
- Salesforce
- SQL
- Annual leave
- Parental leave
Solutions Engineer
Hack The Box —Sydney NSW
- Full-time
- Hybrid work
- Organisational skills
- AI
- Annual leave
- Parental leave
Quick Apply
Principal Engineer FEED
Endeavour Energy —Glendenning NSW
- Full-time
- Bachelor's degree
8d
Executive Manager - Product Security
Commonwealth Bank —Sydney NSW
- Full-time
- No degree
- Software development
- SDLC
5d
Senior Systems Engineer
Avant —Sydney NSW
- Full-time
- Azure
- Financial services
9d
Senior Cloud DevOps Engineer
Transport For NSW —Macquarie Park NSW
- $158,393 - $177,399 a year
- Full-time
- DevOps
- AWS
- No degree
10d

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cyber security engineer jobs near parramatta, nsw

Threat Detection Engineer

Optus -
Sydney NSW

Apply Now

Job Details

3 days ago

Benefits

Onsite gym
Parental leave
Employee discount

Qualifications

CI/CD
SIEM
Cybersecurity
AI
Log analysis
Communication skills

Full Job Description

Date: 17 Jun 2026

Location: Sydney, Australia

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Company: Singtel Group

Optus is a leading telecommunications and technology company, delivering innovative solutions that keep millions of Australians connected. As we continue to evolve into a digital-first, AI-enabled organisation, our Cyber Defence Operations team plays a critical role in protecting our customers, networks and data.

We’re looking for a Threat Detection Engineer to join our Cyber Defence Operations – Defence Operations team, where you will design, build and continuously improve detection capabilities to defend against evolving cyber threats.

Due to the nature of this role and the environments supported, Australian Citizenship, and the ability and willingness to obtain and maintain a Government Security Clearance is required.

What You’ll Do

Partnering closely with Cyber Security leaders, SOC analysts, threat intelligence, and engineering teams, you will:

Design, develop and optimise detection logic across SIEM and EDR platforms (e.g. Microsoft Sentinel, Defender XDR, Cortex XSIAM)
Own the end-to-end detection lifecycle including requirements gathering, rule authoring, testing, deployment, tuning, and retirement
Improve detection precision through noise reduction, alert tuning, suppression logic and false positive management
Configure analyst-facing environments including incident views, triage workflows, alert grouping and scoring models
Conduct detection coverage analysis aligned to MITRE ATT&CK and threat intelligence insights
Collaborate with SOC, threat hunting and red/purple teams to continuously uplift detection capability and operational effectiveness
Contribute to detection-as-code practices, including version control, documentation, and CI/CD pipelines
Participate in security operations rotations, supporting incident triage and response activities

What You’ll Bring
Hands-on experience in cyber security operations (SOC, incident response or threat detection engineering) – this is essential
Strong understanding of security concepts including attack lifecycle, threat actor techniques, and alert triage workflows
Familiarity with SIEM and EDR platforms, and ability to analyse logs across endpoint, identity and network sources
Experience or exposure to detection engineering, rule creation, or threat-informed defence practices
Strong problem-solving skills with the ability to balance detection coverage and operational noise
Effective communication skills and ability to document clearly in operational environments
A growth mindset, with eagerness to learn and develop within a high-performing cyber team

The Good Stuff…
Competitive remuneration and exclusive employee discounts
Flexible working with a hybrid model (office and home)
Access to on-site facilities including cafes, gym, childcare and more
Inclusive parental leave and flexible policies supporting families
Ongoing development through Optus U and industry-recognised learning programs
Employee-led networks supporting diversity, inclusion and belonging
24/7 wellbeing and support services

At Optus, we are strengthened by others and that means valuing diversity and saying ‘yes’ to embracing individual differences. We are committed to ensuring that our application process provides an equal employment opportunity to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, individuals with a disability, individuals identifying as being part of the LGBTQIA+ community, individuals who may have served in the armed forces or who identify as Aboriginal and/or Torres Strait Islander. We also want to do our best to make our recruitment process inclusive. If you require any adjustments or accessibility support to participate fairly and equitably in the recruitment process, please email [email protected] or call 1800 309 170. We're here to help. When you contact us, please advise your preferred method of contact and we will be in touch within 48 hours.

For more information on Diversity, Inclusion & Belonging at Optus, please visit https://www.optus.com.au/about/inclusion-diversity

Apply Now

Refine Your Search

cyber security engineer jobs in parramatta, nsw

Threat Detection Engineer

DevSecOps - Cloud Platform Engineer

Platform and Auxiliary Systems Engineer | Defence Maritime

Solutions Lead

Deployment Engineer

Senior MSP Engineer (L3) | Escalations, Projects + Pre Sales

Senior IT Systems Engineer

Senior Cyber Security Engineer

Cloud Security Engineer

Principal Security Architect - Cyber Platforms

DevOps Engineer â€“ Join a Mission-Driven Cyber Security & Defence Firm

Senior Cyber Security Engineer

Senior Network Security Engineer

Senior SOC Security Engineer

Analytics Engineer

Solutions Engineer

Principal Engineer FEED

Executive Manager - Product Security

Senior Systems Engineer

Senior Cloud DevOps Engineer

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