Max Velitchko is a Principal Software Engineer with over a decade of experience building and leading cross-platform security and infrastructure projects at Microsoft, currently technical lead for Microsoft Defender for macOS. He combines deep low-level engineering—shipping tamper protection and device control features—with product-focused customer engagement and seamless enterprise integrations (MDM/JAMF), ensuring zero-day readiness for major macOS releases. A pragmatic automator, he maintains the widely used open-source mdatp-xplat toolkit and has built scripts and tools that simplify large-scale Defender deployments and configuration analysis. Max’s background spans backend data pipelines, CI/CD, and performance analytics, giving him a rare mix of systems, security, and operational insight. He prefers solving hard, practical problems for customers over chasing coding interview puzzles, and focuses on clear documentation and unattended enterprise installations.
Microsoft Defender for macOS/Linux - config samples, auxiliary tools
Role in this project:
Full-stack Developer
Contributions:53 reviews, 55 commits, 56 PRs in 2 years 6 months
Contributions summary:Max contributed to the development of cross-platform tools and scripts related to Microsoft Defender. They created Python scripts for macOS configuration profile analysis and JAMF server interaction. They also worked on analyzing performance data, implementing tools for system extension management, and building combined mobileconfig files. These contributions highlight a focus on automating and improving the management and analysis capabilities for endpoint security solutions.
A Python 2.7/3.x module for Amcrest Cameras using the SDK HTTP API.
Contributions:13 pushes, 4 branches in 3 years
apipythoncameraamcrestsdk
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Max Velitchko - Principal Software Engineer at Microsoft