Cyber Security Architect

OneStep Group; Western Australia; On-site; AUD 180,000 - 240,000; Full time

Job summary

OneStep Group seeks a Senior Cyber Security Architect to lead end-to-end engagements from discovery and design through implementation, validation and handover. You’ll translate business risks into practical security solutions and collaborate with client technology leaders.

This senior role combines security architecture, engineering and consulting, requiring hands-on expertise in cloud and on-premises environments, with strong communication and delivery leadership.

Qualifications

• Eight+ years in security architecture, engineering, detection engineering or technical consulting.
• Led complex enterprise engagements from discovery to handover.
• Strong architecture and hands-on capability across network, endpoint, identity and cloud security.
• Practical experience implementing Essential Eight controls and Zero Trust, with knowledge of NIST CSF and ISO 27001.
• Experience with Defender, Sentinel, Entra and Intune, or comparable enterprise platforms.
• Knowledge of secure network design, firewalls, segmentation, identity protection, cloud controls in Azure/AWS.
• Experience with SIEM, telemetry integration and SOC requirements; familiarity with MITRE ATT&CK.
• Clear communication, stakeholder management and accurate scope/effort estimation.

Responsibilities

• Lead end-to-end security engagements across cloud, hybrid, and on-prem environments.
• Design and implement security solutions across networks, endpoints, identity, and data protection.
• Drive Eight uplift and Zero Trust initiatives; translate recommendations into implemented controls.
• Strengthen detection and response through SIEM architecture and SOC integration.
• Guide clients through technical decisions; run workshops and craft architectures, plans and roadmaps.
• Mentor peers and contribute to reusable delivery methods and new service offerings.

Skills

Security architecture

Enterprise engagements

Azure security

AWS security

Essential Eight

Zero Trust

MITRE ATT&CK

Delivery leadership

Stakeholder management

Cloud security

Education

CISSP/CISM certifications

Tools

Microsoft Defender

Microsoft Sentinel

Entra

Intune

SIEM tools

Job description

Design the solution. Lead the delivery. See the impact.

Turn security strategy into something that works in the real world. Lead the design. Drive the implementation. Validate the results. As a Cyber Security Architect at OneStep Group, you’ll help clients move from recommendations to practical, measurable improvements.

Join OneStep Group’s Cyber Security Professional Services team and lead complex client engagements from discovery and design through to implementation, validation and operational handover.

This senior technical role brings together security architecture, engineering and consulting. You’ll turn business risks into practical security solutions, work closely with client technology leaders, and help shape our cyber security services.

What you’ll do

• Lead end-to-end security engagements across cloud, hybrid and on-premises environments.


• Design and implement security solutions spanning networks, endpoints, identity, privileged access, cloud and data protection.


• Drive Essential Eight uplift and Zero Trust initiatives, translating recommendations into implemented and validated controls.


• Strengthen detection and response capabilities through SIEM architecture, detection engineering and integration with security operations teams.


• Guide clients through technical decisions, leading workshops and developing clear architectures, implementation plans and improvement roadmaps.


• Help develop the practice through mentoring, reusable delivery methods, technical presales and new service offerings.

What you’ll bring

You’ll combine deep technical expertise with the ability to build trusted client relationships and take ownership of delivery.

• Substantial experience—typically eight or more years—in security architecture, engineering, detection engineering or technical consulting.


• A track record of leading complex enterprise engagements from discovery through to handover.


• Strong architecture and hands-on engineering capability across network, endpoint, identity and cloud security, with deep expertise in several areas.


• Practical experience implementing and validating Essential Eight controls, alongside knowledge of Zero Trust, NIST CSF and ISO 27001.


• Experience with relevant combinations of Microsoft Defender, Sentinel, Entra and Intune, or comparable enterprise platforms.


• Knowledge of secure network design, firewalls, segmentation, identity protection and cloud security controls across Azure and/or AWS.


• Experience with SIEM, detection engineering, telemetry integration and SOC requirements, supported by working knowledge of MITRE ATT&CK.


• Clear communication, stakeholder management and mentoring skills, plus sound scope management and effort estimation.

Consulting or managed security services experience would be valuable, as would exposure to regulated sectors, security automation, technical presales or service development. Relevant qualifications or equivalent professional experience, and certifications such as CISSP, CISM, Microsoft, AWS, Cisco or GIAC, are desirable.

Why this role?

• Stay hands-on while leading architecture: take solutions beyond design into implementation and measurable outcomes.


• Work across varied client environments: apply your expertise to complex technical and business challenges.


• Influence the practice: contribute to technical standards, service offerings and the development of consultants and engineers.


• Connect strategy with delivery: work across architecture, engineering, governance and security operations.