Sr. MacOS Sensor Engineer (Hybrid)
CrowdStrike4 LocationsPosted 8 March 2026
Job Description
As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn’t changed — we’re here to stop breaches, and we’ve redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We’re also a mission-driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. We’re always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you.
About the Role:
In this role you will research and develop techniques for detecting malicious activity occurring on macOS systems. Once researched you will develop them into production level solutions for deployment in the endpoint sensor. The role is a split of research and implementation working alongside a small and nimble group of MacOS engineers and often leveraging shared code with other sensor platforms such as Windows and Linux.
Successful engineers in this role have: an understanding of macOS kernel and user space, a passion for continuous learning to keep up with an ever-changing threat landscape, a creative mindset for designing new detection methods and the discipline to write fast and reliable code.
This role is hybrid, requiring 2-3 days per week on-site at one of the posted locations
What You'll Do:
Design and build detection logic and systems leveraged across teams within CrowdStrike to detect cyber attackers and stop breaches
Extend our existing codebase utilizing Swift, C, Python, and other tools and DSLs (domain specific languages) as appropriate
Research techniques for detecting malicious activity including some reverse engineering and/or big data analysis
Leverage your understanding of engineering best practices, including topics like secure coding, testing paradigms, debugging, performance, code reviews, CI/CD and os internals, to ensure that our sensor code is fast and reliable
Troubleshoot issues with the product as reported from customers responsively and other projects as assigned
Be an energetic ‘self-starter’ with the ability to take ownership and be accountable for deliverables, both individually and when leading a team
What You'll Need:
5 years of experience with either:
Reverse engineering, threat detection, and malware analysis; and an interest in on-device development, or
Designing, building, and delivering high-quality software in at least one of the following: Swift, C/C, Python, Objective-C; and an interest in security.
Low-level OS knowledge of macOS and/or Linux operating system internals, components, APIs and/or frameworks.
Team player – able to lead, mentor, communicate, collaborate, and work effectively in a distributed team, to clearly articulate thoughts & designs to peers and upper management
Bonus Points:
Prior security experience, particularly in endpoint threat detections or sensor development. Familiarity with the threat landscape on Linux/Windows is a plus
Experience with macOS Frameworks and events relevant to security and recent familiarity with the recent developments in macOS
Experience developing 24/7 enterprise software, including CI, testing, debugging, performance tracing, release management, telemetry analysis and issue handling
#LI-DR1
#LI-Hybrid
#HTF
Benefits of Working at CrowdStrike:
Market leader in compensation and equity awards
Comprehensive physical and mental wellness programs
Competitive vacation and holidays for recharge
Paid parental and adoption leaves
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