--- title: 'Staff Software Engineer, Endpoint Security (macOS/Windows Internals, Python) at SentinelOne' canonical: 'https://feeny.ai/job/staff-software-engineer-endpoint-security-macos-windows-internals-python-3q1mn29ky3br' type: 'job' last_seen: '2026-10-14' --- # Staff Software Engineer, Endpoint Security (macOS/Windows Internals, Python) at SentinelOne - **Company:** SentinelOne - **Location:** Israel - **Posted:** 2026-08-05 - **Last confirmed live:** 2026-10-14 - **Apply:** https://www.sentinelone.com/jobs/?gh_jid=7823948003 ## Job description 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? 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. At Prompt Security, our mission is to empower organizations to safely harness the transformative power of Generative AI. As a one-stop security platform, we provide visibility, governance, and real-time protection against all Generative AI concerns, enabling organizations to innovate and prosper in the age of AI without compromising on security. As a Staff Endpoint Software Engineer, you'll design and build the low-level security sensors and enforcement engines that sit at the heart of our Generative AI Security platform — running deep inside endpoints, browsers, and production workloads to detect and stop threats in real time. You'll own critical architecture decisions, work hands-on with OS internals (kernel-level hooks, system calls, process/network monitoring), and set the technical bar for how we build secure, lightweight agents at scale. This is a high-ownership role for engineers who love working close to the metal and want their code protecting real enterprise environments from day one. What Will You Do? - Architect and continuously optimize sensor components for minimal system footprint, high performance, low resource consumption, and maximum reliability. - Drive the technical evolution of our AI Security Posture Management (Agentic) engine — designing adaptive policy logic, improving decision engines, and expanding platform coverage. - Build and own endpoint security solutions (macOS & Windows), integrating deeply with OS-level APIs for real-time threat detection and data protection. - Set technical direction and mentor engineers on best practices for building secure, high-performance, low-level system components. - Partner closely with security researchers, QA, and product teams to translate emerging threats into shipped protection. - Stay ahead of the latest developments in Generative AI security and OS-level threats, bringing new techniques into our agents and extensions. What Skills and Knowledge Will You Bring? - 6+ years of experience in Python, Node.js, or a comparable language, with deep hands-on work at the OS/systems level - Strong experience with macOS and/or Windows Endpoint Security frameworks (e.g., EndpointSecurity.framework, ETW, minifilter/kernel drivers) - Deep understanding of OS architecture and internals (processes, system calls, memory, file system, networking stack) - Track record of owning complex, low-level systems from design through production at scale - Excellent problem-solving skills, strong technical judgment, and attention to detail - Experience with browser extension development (Chrome, Firefox, etc.) — Advantage Why us? - 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: Equity & Rewards - Restricted Stock Units (RSUs) - Employee Stock Purchase Plan (ESPP) - Time Off & Wellbeing - Competitive leave benefits - Gender-neutral parental leave - Employee Assistant Program - Workout sessions and a Wellness App - Insurance & Financial Security - Medical and insurance benefits - Pension - Employee Assistance Program (EAP) - Work Perks & Flexibility - Global home office allowance - Mobile phone reimbursement 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. ## About SentinelOne ## Company Overview - **One-liner**: SentinelOne provides an AI-native autonomous security platform that unifies endpoint, cloud, and identity protection to help defenders stay ahead of cyber threats. - **Entity Type**: Public (NYSE: S) - **Headquarters**: Mountain View, California, USA - **Founded**: 2013 - **Founders**: Tomer Weingarten (CEO, Co-Founder), Almog Cohen (Co-Founder) ## Core Business - **Primary industry**: Cybersecurity (Endpoint Protection, Cloud Security, Identity Security, AI Security) - **Target customers**: B2B, Global 2000 enterprises, including four of the Fortune 10 and hundreds of the Fortune 500 - **Mission or purpose statement**: “To give the advantage to those who secure our future” – with a vision of “A Safer Future for Humanity” ## Products & Services - **[Singularity Platform]**: AI-driven autonomous security platform that unifies prevention, detection, response, remediation, and forensics across endpoint, cloud, and identity environments. Type: SaaS / Platform. - **[Purple AI]**: Security AI assistant that helps analysts investigate, hunt threats, and automate workflows. Type: SaaS / AI tool. - **[Cloud Security]**: Cloud workload protection, Cloud Detection and Response (CDR), and Kubernetes security. Type: SaaS. - **[Identity Security]**: Protection against identity-based attacks, including AD forgery, lateral movement, and credential theft. Type: SaaS. ## Market Standing - **Valuation/Market Cap**: Not provided in search results; refer to public financial data (NYSE: S). - **Key Metric**: Annual revenue not stated in provided materials; latest known revenue (FY2025) ~$725M (source not in search results). Total employees: 2,830 (from Built In, 2025). - **Notable Investors/Partners**: No specific investors listed (public company). Key partners include leading Global 2000 enterprises, Gartner (named a Leader in 2026 Magic Quadrant for Endpoint Protection Platforms for six consecutive years). - **Growth Signals**: 12 offices worldwide; recognized as a Fortune Best Place to Work in Tech (2024, 2025); Fortune Future Fifty company; Great Place to Work certified in 17+ countries; growing remote and in-office headcount. ## Competitive Advantages - **AI-native architecture**: Started with AI at the core, not bolted on – enables autonomous, machine-speed detection and response. - **Unified platform**: Covers endpoint, cloud, identity, and AI security in a single agent and console, reducing complexity for security teams. - **Industry validation**: Named a Leader in Gartner Magic Quadrant for six consecutive years; trusted by some of the world’s largest organizations. - **Autonomous response**: Fully automated remediation, reducing manual intervention and mean time to respond (MTTR). ## Strategic Focus - **Current priorities**: Expanding the Purple AI assistant, deepening cloud and identity protection, and enabling real-time, cross-platform autonomous defense at scale. - **Direction**: Build the operating model for AI-era security – where machines scale and humans guide – to give defenders a persistent advantage. ## Why Work Here - **Culture**: Core values – Accountability, Relentlessness, Ingenuity, Trust, Community, OneSentinel. Emphasizes inclusion, innovation, and customer-first mindset. - **Work environment**: Flexible – many roles offer remote options (US-Remote listed), with physical offices in 12 locations globally for those who prefer on-site. - **Perks & benefits**: Industry-leading compensation; 16 weeks gender-neutral parental leave; unlimited PTO; medical/dental/vision; gym reimbursement; mental health & mindfulness programs; stock programs (RSUs, ESPP); 401(k); legal assistance; apprenticeship programs. - **Growth opportunities**: Job training, conferences, talent development; early-career internships and apprenticeship programs; diverse employee resource groups. - **Recognition**: Fortune Best Places to Work in Tech (2024, 2025); Fortune Future Fifty; Best Place to Work for Parents; Great Place to Work certified across multiple countries. ## Sources 1. [SentinelOne Careers](https://www.sentinelone.com/careers/) 2. [SentinelOne Company Page](https://www.sentinelone.com/company/) 3. [SentinelOne Homepage](https://www.sentinelone.com/) 4. [SentinelOne Open Positions](https://www.sentinelone.com/jobs/) 5. [Built In – SentinelOne Profile](https://builtin.com/company/sentinelone) 6. 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