Overview The Enterprise Security Engineer is a hands-on engineer who implements, operates, and improves security controls across corporate architecture, SaaS platforms, cloud services, endpoints, identity, data, and workforce technologies.
This role translates enterprise security strategy into practical, measurable controls and secure-by-default solutions that reduce risk without slowing the business.
The engineer partners with Enterprise IT, Corporate Engineering, SRE and Platform teams, Business Systems, Product Security, Legal, Privacy, and other stakeholders to deliver scalable security improvements across Atlassian's corporate environment.
As part of Atlassian's "Customer Zero" initiative, the engineer helps validate and improve security capabilities internally before broader adoption.
Responsibilities Enterprise Security Engineering Design, implement, operate, and maintain security controls across identity,



endpoints, network, cloud (AWS/GCP), SaaS, and data-protection domains.
Remediate identified gaps in access controls, device posture, SaaS configurations, and sensitive data protections.
Assist with the rollout and adoption of secure baseline configurations and paved-path implementations across internal teams.
Participate in security reviews for current tools, internal workflows, and SaaS integrations under the guidance of senior engineers.
Support cyber-related physical security operations, including maintaining integrations between physical access-control systems and identity platforms, monitoring access lifecycles, and addressing facility-related cyber risks.
Identity, Access

📌 Enterprise Security Engineer (Sydney)
🏢 Atlassian
📍 Sydney