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Senior Defensive Security Engineer

Cybertify
Sydney, NSW
A$145,000-$200,000 p/a
Information & Communication Technology → Security
Full-time
Hybrid

Posted 13 days ago


Say hello to Cybertify — the new force in cybersecurity consulting.

We’re not here to blend in. We’re here to raise the bar. Cybertify was founded to bring precision, execution, and operational discipline to cybersecurity in a market that’s lost its edge.

Led by a seasoned lawyer with a track record of building high-performance consulting teams, we are assembling a specialist cyber squad to take on compliance, GRC, offensive & defensive security, and VIP (Private Client) cyber across Australia’s most regulated sectors.

If your current firm has been acquired, diluted, or lost its identity — now is the time to move. Cybertify is independent, focused, and unapologetically ambitious. We don’t have a website (yet), but when it launches, it will speak for itself.

Join us now, before the launch. Help us build it right. Be part of the future of cybersecurity consulting.

Cybertify is Australia’s trusted compliance-first cybersecurity consulting firm. We support organisations in the most highly regulated sectors, including legal, financial services and fintech, healthcare, education, government, critical infrastructure, SaaS, and private clients. Our brand is built on precision, execution, and operational discipline.

Cybertify. The Standard is Changing.

We believe that strong defensive security controls, supported by compliance-aligned configurations, are essential to resilience. As we expand, we are hiring a Senior Defensive Security Engineer to lead the implementation and management of security tooling, monitoring, and protection for client environments.

Your Role

This is a delivery-focused technical role for an experienced security engineer who can scope, deploy, and manage solutions across SIEM, EDR, DLP, cloud security, insider threat protection, and VIP services for our private clients. You will operate across cloud and on-prem environments and collaborate with both technical and non-technical client stakeholders.

Key Responsibilities

Defensive Service Delivery

Deploy and manage SIEM platforms (Microsoft Sentinel, Splunk, QRadar, Fortinet, etc.)

Configure log ingestion pipelines, correlation rules, and detection logic

Implement and maintain EDR tools (CrowdStrike, Defender for Endpoint, SentinelOne)

Design and deploy insider threat detection, DLP, and UEBA solutions

Secure Microsoft 365, Azure, AWS, GCP and hybrid environments in line with ISO 27001, Essential Eight, and NIST CSF

Lead network security projects including firewall configuration, NAC, and VPN segmentation

Execute cloud/SaaS hardening projects for regulated and compliance-driven clients

Threat Response & Monitoring

Support incident triage and response activities

Fine-tune detection rules and optimise false positive ratios

Maintain and update response playbooks and remediation runbooks

Provide proactive defensive recommendations during security reviews

VIP Cybersecurity Services

Deliver tailored defensive controls for executives and high-net-worth individuals

Secure home networks, IoT, personal devices, and communication channels

Advise on anti-fraud, ransomware protection, and digital privacy

Ensure white-glove service with total confidentiality

Internal Tooling & Process Development

Maintain secure configuration templates, deployment standards, and implementation logs

Build and improve Cybertify’s internal playbooks and knowledge repositories

Collaborate with GRC and offensive teams to support integrated service delivery

Role Requirements

Experience

Minimum 5 years in defensive cybersecurity (engineering, SOC, managed security, or cloud/infrastructure security roles)

Strong client-facing communication and reporting experience

Proven delivery across at least 3 of the following areas:

SIEM

EDR or DLP

Cloud security (Azure/M365/AWS)

Network security

Insider threat / VIP cybersecurity

Technical Skills

Advanced knowledge of endpoint, server, and cloud security architecture

Proficient with Microsoft Defender Suite, Microsoft Sentinel, and industry EDR tools

Familiar with Windows Event Forwarding, Syslog, and standard logging frameworks

Capable of hardening Windows, Linux, cloud workloads, and perimeters to compliance standards

Comfortable scripting in PowerShell and Bash for automation and integration

Required Certifications

At least one Microsoft security certification:

Azure Security Engineer Associate (AZ-500), or

Security Operations Analyst Associate (SC-200)

Plus one foundational or defensive certification:

CompTIA Security+ or CySA+

SANS GSEC, GCIH, or GCED

BTL1 / BTL2 (Blue Team Level)

Preferred / Bonus Certifications

SC-400 (Information Protection)

SC-100 (Cybersecurity Architect Expert)

CISSP (for broad technical and strategic knowledge)

AWS Security Specialty

GIAC GMON or GCIA

KLCP, BTL2, or other blue team certifications

Client-Facing & Professional Standards

Must clearly articulate configurations and risk mitigation strategies to clients

Confident in engaging with IT, compliance, and board-level stakeholders

Maintains complete discretion when handling sensitive client data or VIP services

Communicates professionally at all times, both written and verbal

Responsiveness & Accountability

Respond to all client emails and return missed calls within 4 business hours

Never reschedule booked engagements or walkthroughs without written management approval from the management

Maintain accurate documentation and version-controlled configuration records

Deliver projects on time with clear communication around scope and status

Home Office & Connectivity

Fast, reliable home internet (≤ 70 ms latency)

Dedicated, professional home office suitable for client-facing video calls

Performance Metrics

Number of completed SIEM, EDR, and cloud security deployments

Quality of configuration (audit feedback, internal validation, or client review)

Responsiveness and professionalism in all delivery engagements

VIP service quality with zero incidents or escalations

Documentation completeness, clarity, and standardisation

Contribution to templates, playbooks, and delivery quality

How to Apply

Submit your resume and a cover letter via Seek explaining why you’re the perfect fit for this role.


About Cybertify

Sydney, NSW, Australia

This company does not have any further information provided at this time. We encourage you to research the company by searching for them to learn more about the company or role in question before applying.

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