Senior Software Development Engineer in Test

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 Software Development Engineer in Test tasked to join our On Prem team and help us build a high-quality, reliable self-hosted product. The ideal candidate combines strong automation depth with solid product thinking — someone who understands how customers use the product, knows where quality risks hide, and can design the right test strategy to catch them early. What will you do Primary responsibilities include: Own the quality strategy for key OnPrem features across functional, integration, and end-to-end test coverage Design, build, and maintain scalable automation frameworks and test infrastructure for UI and service-level validation, extending the current expectation to enhance and maintain automation tests and infrastructure. Work closely with developers, product managers, and other QA / automation engineers to define test plans early and improve release confidence, consistent with the existing expectation to partner closely with automation engineers and developers. Develop, execute, and continuously improve automated test suites for new and existing functionality, while analyzing failures, reporting issues clearly, and driving resolution with engineering. Own validation from feature design through release, including test planning, execution, triage, and sign-off. Raise the bar on product quality by identifying gaps in testability, observability, reliability, and release readiness Drive better quality processes, dashboards, reporting, and CI signal for faster and safer releases Mentor other engineers on automation best practices, debugging, and quality engineering principles What skills and experience should you bring Ideal candidates will have: 5+ years of experience in test automation / automation development. Strong product thinking with the ability to translate product behavior and customer workflows into effective test strategy Strong hands-on experience with Selenium, Playwright, Python, and TypeScript Strong experience building robust test automation for complex systems, aligned with the current JD’s focus on complex system-level testing. Experience debugging issues deeply and working closely with developers to drive fixes. Strong experience with Jenkins-based CI pipelines and test execution workflows Experience with Allure or similar test reporting / insights platforms Solid…