Senior Software Engineer, macOS
About the role
What Are We Looking For?
We’re looking for people who are relentlessly curious and committed to continuous learning. AI is reshaping every function across our business, and we enable every team member, regardless of role or level, to build fluency in AI tools and concepts. Those who thrive here actively seek out new solutions, experiment thoughtfully, and apply what they learn to drive better, faster, smarter outcomes.
As a Senior Software Engineer (macOS), you will work directly on core macOS technologies to design high-performance features and evolve our agent architecture at the system level. You will lead the technical response to critical field events, systematically diagnosing root causes within the macOS ecosystem to develop and issue robust patches. Collaborating seamlessly with Product and Quality Assurance teams, you will ensure that vital security fixes and performance enhancements are integrated rapidly into our global release cycles, maintaining the highest standard of endpoint protection.
What skills and experience should you bring?
Required:
- 4+ years of software development experience, with dedicated experience on macOS
- Strong proficiency coding in Objective-C
- Understanding of macOS user space and internals
- Experience in systematically root-causing complex OS systems
Advantages:
- Experience developing OS drivers & system extensions is a plus
- Experience managing escalations or issues requiring highly coordinated efforts to identify service restoration
- Experience with system performance analysis and mitigations
- Cybersecurity experience or exposure to macOS endpoint security platforms
- Experience with large-scale event processing systems
- Swift experience is beneficial but not required
Why SentinelOne?
AI is redefining how the world operates and rewriting the rules of security in real time, and SentinelOne was built for this moment. From day one, we architected an AI-native platform designed to operate at machine speed, not as an add-on to legacy systems but as the foundation itself. If you want to build where innovation and impact move together, this is that place.