Senior macOS Software Engineer
Our Purpose
At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find purpose here.
About Us
SentinelOne is a company at the intersection of AI and security, pioneering a new operating model for cybersecurity. Our AI-native platform unifies protection across endpoint, cloud, identity, data, and AI systems to deliver autonomous detection and response with clarity and speed. By combining real-time analytics, intelligent automation, and a unified data foundation, we reduce noise, simplify complexity, and empower security teams to focus on what truly matters.
Our teams are builders, problem-solvers, and innovators committed to shaping the future of security. If you are excited to solve hard problems alongside talented, mission-driven people, we invite you to help us build a safer future for humanity.
What Are We Looking For?
Weāre 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/Staff macOS Software Engineer, you will be directly involved in SentinelOne's core technology, ensuring we are always staying ahead of cybercriminals and delivering best-in-class detection. You will be a part of a team of globally distributed system and kernel developers who work deeply within the 3 main OS's of the world: Windows, Linux, macOS - and create our flagship productline Endpoint Protection, recognized 5x in-a-row as Gartner Leader. As we're expanding our presence in EMEA, we're looking for multiple colleagues for the macOS team ā a unique chance for you to join together as a team with other folks you enjoy working with!
What Will You Do?
Primary responsibilities include:
Design, build, and scale core macOS security technologies powering SentinelOneās endpoint protection
Research emerging threats and investigate complex system-level issues
Develop high-performance features, fixes, and patches to enhance detection capabilities
Collaborate with Product, Support, Sales, QA, and global R&D teams
Contribute to high-quality releases and continuous product improvements
Support enterprise and government customers by ensuring reliable, mission-critical protection
What Skills and Knowledge Will You Bring?
Ideal candidates will have:
Strong proficiency coding in Objective-C and multiple years of SW engineering experience for macOS (macOS is highly preferred, but iOS cybersecurity SW product development experience would be also considered relevant)
Experience level is flexible, Senior/Staff+ engineers are encouraged to apply!
Experience in systematically root-causing complex OS systems
Understanding of macOS user space and internals
Advantages:
Experience developing OS drivers & system extensions or with more than one OS is a plus
Experience managing escalations or issues requiring highly coordinated efforts to identify service restoration
Experience with system performance analysis and mitigations, and with large-scale event processing systems
Cybersecurity experience or exposure to macOS endpoint security platforms
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.
We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:
Salary starting from 4500 EUR/month. Annual bonus based on company performance, paid in two installments. The final base salary may be adjusted based on the individual skills and experience of the selected candidate.
Equity & Rewards
Restricted Stock Units (RSUs)
Employee Stock Purchase Plan (ESPP)
Time Off & Wellbeing
Competitive leave benefits
Gender-neutral parental leave
Insurance & Financial Security
Medical and insurance benefits
Pension
Employee Assistance Program (EAP)
Work Perks & Flexibility
Global home office allowance
Wellness & Lifestyle
Meal allowance
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.
At SentinelOne, we are driven by a clear purpose: to give the advantage to those who secure our future. As AI reshapes how organizations build, operate, and innovate, the responsibility to protect them becomes more critical than ever. When you join SentinelOne, your work helps protect global enterprises, critical infrastructure, and the technologies shaping tomorrow. If you are motivated by meaningful challenges and want your impact to be real, measurable, and global, you will find purpose here.
About Us
SentinelOne is a company at the intersection of AI and security, pioneering a new operating model for cybersecurity. Our AI-native platform unifies protection across endpoint, cloud, identity, data, and AI systems to deliver autonomous detection and response with clarity and speed. By combining real-time analytics, intelligent automation, and a unified data foundation, we reduce noise, simplify complexity, and empower security teams to focus on what truly matters.
Our teams are builders, problem-solvers, and innovators committed to shaping the future of security. If you are excited to solve hard problems alongside talented, mission-driven people, we invite you to help us build a safer future for humanity.
What Are We Looking For?
Weāre 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/Staff macOS Software Engineer, you will be directly involved in SentinelOne's core technology, ensuring we are always staying ahead of cybercriminals and delivering best-in-class detection. You will be a part of a team of globally distributed system and kernel developers who work deeply within the 3 main OS's of the world: Windows, Linux, macOS - and create our flagship productline Endpoint Protection, recognized 5x in-a-row as Gartner Leader. As we're expanding our presence in EMEA, we're looking for multiple colleagues for the macOS team ā a unique chance for you to join together as a team with other folks you enjoy working with!
What Will You Do?
Primary responsibilities include:
Design, build, and scale core macOS security technologies powering SentinelOneās endpoint protection
Research emerging threats and investigate complex system-level issues
Develop high-performance features, fixes, and patches to enhance detection capabilities
Collaborate with Product, Support, Sales, QA, and global R&D teams
Contribute to high-quality releases and continuous product improvements
Support enterprise and government customers by ensuring reliable, mission-critical protection
What Skills and Knowledge Will You Bring?
Ideal candidates will have:
Strong proficiency coding in Objective-C and multiple years of SW engineering experience for macOS (macOS is highly preferred, but iOS cybersecurity SW product development experience would be also considered relevant)
Experience level is flexible, Senior/Staff+ engineers are encouraged to apply!
Experience in systematically root-causing complex OS systems
Understanding of macOS user space and internals
Advantages:
Experience developing OS drivers & system extensions or with more than one OS is a plus
Experience managing escalations or issues requiring highly coordinated efforts to identify service restoration
Experience with system performance analysis and mitigations, and with large-scale event processing systems
Cybersecurity experience or exposure to macOS endpoint security platforms
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.
We invest in our Sentinels with comprehensive, competitive benefits designed to support you and your family:
Salary starting from 4500 EUR/month. Annual bonus based on company performance, paid in two installments. The final base salary may be adjusted based on the individual skills and experience of the selected candidate.
Equity & Rewards
Restricted Stock Units (RSUs)
Employee Stock Purchase Plan (ESPP)
Time Off & Wellbeing
Competitive leave benefits
Gender-neutral parental leave
Insurance & Financial Security
Medical and insurance benefits
Pension
Employee Assistance Program (EAP)
Work Perks & Flexibility
Global home office allowance
Wellness & Lifestyle
Meal allowance
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.