Penetration Testing Specialist - M365 - Offensive Security
Microsoft Corporation
Sydney, Australia
Job posting number: #7313463 (Ref:ms-1850686)
Posted: July 28, 2025
Job Description
Are you passionate about identifying and exploiting security vulnerabilities that impact hundreds of millions of users across the world? Join the M365 Security organization, where you will emulate real-world advanced persistent threats against Microsoft. Our mission is to ensure Microsoft is prepared to face and respond to even the most determined adversaries by exploring innovative ways to identify and prevent security flaws.
We are looking for a Penetration Testing Specialist to execute operations and collaborate with other experienced pen testers in identifying and exploiting vulnerabilities across all layers of services, including application, cloud, network, hardware, and operational security domains. You will work closely with developers and security personnel from multiple teams across Microsoft. Additionally, as a Security Engineer in M365, you will be responsible for executing tactics, techniques, and procedures of potential attackers, while providing critical insights that empower our security teams to strengthen defenses and protect against the evolving landscape of digital threats.
Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond. In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day.