Senior SDET - AI Detection and Response (AIDR) (Hybrid)

As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn’t changed — we’re here to stop breaches, and we’ve redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We're proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute to a culture of responsible AI adoption, experimentation, and innovation. We use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution, build expertise, uncover insights, and solve complex problems. We’re always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you.

CrowdStrike is seeking a Software Developer in Test (SDET) to join our AI Detection and Response (AIDR) team. In this role, you will own end-to-end quality for the next generation of AIDR services — a platform that processes millions of AI security events per second and manages petabytes of critical AI data. This is a hands-on, coding-intensive role on par with product development. You'll build and own AIDR-specific test tooling and frameworks, while leveraging and contributing to shared organization-wide testing infrastructure. Your work will span validation across both cloud-side backend services and UI applications, ensuring the system behaves correctly at every stage — from individual components to full system behavior. Testing concerns span functional, performance, contract, and chaos/resilience engineering. This is an opportunity to work at unprecedented scale with cutting-edge cloud technologies while making a direct impact on organizations worldwide, protecting them from sophisticated AI-based threats. PLEASE NOTE: This role is hybrid, requiring 2-3 days per week on-site at one of the posted locations. Success Means: Architect enterprise-grade test solutions that validate systems scaling seamlessly from thousands to millions of requests per second Building reusable test frameworks and platform libraries that accelerate quality across multiple engineering teams Drive operational excellence through rapid issue resolution, thorough root cause analysis, and proactive system improvements Collaborating effectively across engineering teams to drive testing best practices and quality culture Deliver with velocity while maintaining the highest standards of security and reliability What You'll Do: Own end-to-end validation of AIDR services across cloud-side backend and UI layers, spanning component, integration, and application levels, while continuously improving test and validation processes Build and own AIDR-specific test tooling and frameworks, while leveraging and contributing to shared organization-wide testing tools and infrastructure Define and drive testing strategies across functional, performance, contract, and chaos/resilience testing concerns Verify features and functionality spanning our processing, data, and customer-facing application layers to ensure reliability, accuracy, and performance at scale Participate in code and design reviews with a focus on quality, testability, security, and code hygiene Review engineering technical design documents and requirements; provide guidance and strategy on how and where to build in testability Contribute to service operations, including improving overall service observability and