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Atlassian Logo Atlassian · IT - Software Development

Principal Product Security Engineer

Australia · Job Posted December 27, 2025
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Job Description

Do you thrive at the intersection of cybersecurity and AI, with a passion for securing machine learning systems and responsible LLM use? We are seeking a Principal Security Engineer with a focus on AI/ML who is deeply invested in protecting models, data pipelines, and inference services through innovative defences and governance. If you excel in identifying model-specific vulnerabilities, crafting robust mitigations, and staying ahead of evolving AI security risks and standards, this role is for you. Join our team to lead the charge in safeguarding our AI platforms and product experiences. Partnering across engineering, platform, infrastructure and privacy to foster a culture of secure and trustworthy AI that meets the highest industry standards.

Job Responsibility

  • Serve as the Technical SME, promoting automation, reviewing platform and service designs and architectures, and driving our security teams to equip the engineering partner teams with the latest tools, techniques, and methodologies to enhance AI security
  • Lead the charge in safeguarding our AI platforms and product experiences
  • Partnering across engineering, platform, infrastructure and privacy to foster a culture of secure and trustworthy AI that meets the highest industry standards

Requirements

  • Hands-on experience securing AI/ML systems, including models, data pipelines, and inference services
  • Experience in cloud security architecture and infrastructure for AI/ML workloads
  • Experience coding in Java, Javascript, Python, or Go, and at least one scripting language
  • Experience leading large-scale projects from start to finish
  • Adept experience providing SME knowledge and guidance to stakeholders and engineering functions
  • Proven experience in a technical leadership role within product security, with 2+ years of experience
  • Deep understanding of cybersecurity principles, threat landscape, and best practices
  • Strong knowledge of data security, privacy, encryption, and authentication methods
  • Experience with compliance standards such as ISO 27001, SOC 2, FedRAMP, or similar
  • Excellent leadership, communication, and interpersonal skills

Nice to have

  • Demonstrated expertise and experience working in security-focused roles
  • Experience with application security, especially for services integrating ML models or LLMs
  • Experience mentoring other security practitioners
  • CVE's to your name
  • Contributions to open-source security software
  • Delivered industry presentations
  • Bachelor's or Master’s degree in Information Security, Computer Science, or a related field

What we offer

  • Health and wellbeing resources
  • Paid volunteer days
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