Senior Backend Engineer - Windows Endpoint

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. As a Senior Backend Engineer - Windows Endpoint, you will be tasked with helping to develop the platform that serves as an enterprise next-generation endpoint protection (EPP) + endpoint detection & response (EDR) solution that runs on Windows (as well as macOS, Linux, servers, etc.). It comes as a single, unified agent designed to prevent, detect, respond, and remediate cyber threats, including malware, ransomware, fileless attacks, and advanced persistent threats -all in real time. We are looking for a Python + Java Backend Engineer to join a collaborative product team of around 8 engineers working on a complex, high-impact software platform. You’ll contribute across the stack's backend services, building scalable, high-performance services and APIs, while actively using AI-powered development tools to improve productivity and code quality. The team follows Agile best practices, values clean architecture, ownership, and continuous improvement. What Will You Do? Primary responsibilities include: Design, develop, and maintain high-performance, scalable backend services in Python and Java Lead the implementation of robust and secure RESTful APIs Collaborate closely with frontend, DevOps, and QA engineers in an Agile/Scrum environment Participate in sprint planning, reviews, and retrospectives. Write clean, testable, and well-documented code, focusing on code quality and performance optimization Integrate and work with various data stores (e.g., SQL, NoSQL) and third-party services Use AI-assisted development tools (e.g., code assistants, testing tools, analysis tools) to improve delivery speed and quality Contribute significantly to architectural discussions and technical decisions, driving best practices Support production systems, troubleshoot complex issues, and ensure system reliability What Skills and Knowledge Will You Bring? Ideal candidates will have: 7+ commercial experience with Python or Java (backend development) Solid experience with Java, including building enterprise-level applications and services Deep understanding of distributed systems, microservices architecture, and cloud platforms Expert knowledge of designing and implementing secure, highly-scalable RESTful APIs Familiarity with Agile development methodologies Experience mentoring junior engineers and leading technical initiatives Comfortable using AI tools in daily development (e.g., coding assistants, test generation, debugging, documentation support) 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.