Defender Device Tagging
Designed and implemented automated device tagging to focus Microsoft Defender vulnerability views on active endpoints.
Operational · Accepted at BPC
Explore project →Cyber Security Analyst · Melbourne, Australia
Security operations.
Practical automation.
I'm Sergei Youdachev. I investigate security issues and build tools that make endpoint monitoring, reporting and infrastructure maintenance more consistent.
Selected work
Projects in practice
Centralised Linux Patching
Built centralised Linux patching workflows with staged updates, reboot handling and per-host reporting.
Operational · Accepted
Explore project →Windows Event Monitoring
Implemented Windows event monitoring for Rapid7 and Ivanti services, with detection workflows in Microsoft Defender XDR.
Operational · Accepted at BPC
Explore project →Phishing Simulation & User Reporting
Configured Attack Simulation Training and a new Report button to support phishing exercises and suspicious-email reporting.
Operational · Accepted at BPC
Explore project →Rapid7 Health Reporting
Built daily agent and collector health reporting with snapshot comparisons and prioritised HTML and CSV output.
Working tool · Ongoing development
Explore project →Electronic Placement Brief
Contributed backend workflows, role-based access and cloud deployment to a university placement brief platform.
Team capstone · UAT & Handover
Explore project →About me
Security supported by infrastructure experience.
I work as a Cyber Security Analyst at the Building and Plumbing Commission. My work includes Microsoft Defender, Rapid7, security automation and Linux infrastructure.
My broader experience includes manufacturing automation support at Pfizer and Windows and Linux systems administration. I also contributed to the Nexus Five university capstone, combining backend development with cloud UAT deployment and technical handover.
Microsoft securityWindows & LinuxAutomation & scripting
Contact
Let's discuss your security needs.
For professional opportunities and project enquiries.