Staff macOS Software Engineer

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About Us

At SentinelOne, we’re redefining cybersecurity by pushing the limits of what’s possible—leveraging AI-powered, data-driven innovation to stay ahead of tomorrow’s threats.

About Us

At SentinelOne, we’re redefining cybersecurity by pushing the limits of what’s possible—leveraging AI-powered, data-driven innovation to stay ahead of tomorrow’s threats.

From building industry-leading products to cultivating an exceptional company culture, our core values guide everything we do. We’re looking for passionate individuals who thrive in collaborative environments and are eager to drive impact. If you’re excited about solving complex challenges in bold, innovative ways, we’d love to connect with you.

What are we looking for?

We are continuously expanding the capabilities of SentinelOne, actively listening to customers and responding to their needs. We are looking for an experienced engineer for macOS who will be directly involved in our core technology, ensure we are always staying ahead of cybercriminals and deliver best-in-class detection.

What will you do?

At SentinelOne you will be a part of our organization of globally distributed system and kernel developers who work deeply within the 3 main OS's of the world : Windows, Linux and macOS. We are responsible for researching and identifying emerging issues and providing appropriate responses. We also work closely with Support, Sales (in order to win multi million dollar deals), other SW Engineers, and Quality Assurance to ensure any new issues are quickly addressed and then made a part of the ongoing releases.

You will be working in a team that is responsible for everything macOS-related from S1 core technology, running on millions of endpoints (in different environments, from C levels to developers) across thousands of clients worldwide. Your role will also involve responding to events that occur in the field, root causing them, and issuing patches when needed. You will participate in implementation and design decisions around improving agent architecture and new feature development.

What skills & knowledge should you bring?

Experience level is flexible - senior, staff or even lead SW engineers are encouraged to apply and will be entertained!

• Strong proficiency coding in Objective-C and several years of SW engineering experience for macOS (macOS is highly preferred, but iOS cybersecurity SW product development experience would also be considered relevant)
• Experience in systematically root-causing complex OS systems
• Understanding of macOS user space and internals
• Understanding of the XNU kernel
• Understanding of XPC and other IPC mechanisms
• Understanding of Grand Central Dispatch
• Understanding of multithreading and its potential pitfalls

It’d be great if you have experience with / or You’d learn & gain on our team :

Why us?

Because you will meet extraordinary challenges facing the newest attacks and tech obstacles and overcoming them. You will work with the very BEST in the industry in a flexible and independent environment. You will influence the design of a disruptive product that will shape the security industry of tomorrow.

What We Offer You

Aditional Country-specific Benefits To Spain

SentinelOne is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.

SentinelOne participates in the E-Verify Program for all U.S. based roles. Seniority level

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