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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Engineer - Cloud SDET - Lightning (Hybrid) - **Company:** CrowdStrike - **Location:** Sunnyvale, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Adobe InDesign, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Automation of Tests, C++ (Programming Language), Software as a Service, Cloud Computing, Code Coverage, Code Review, Cyber Security, Software Debugging, Distributed Systems, Python (Programming Language), Enterprise Messaging Systems, Redis, Cloud Services, Service-Oriented Architecture, Software Technical Review, Rust (Programming Language), Delivery Pipeline, Backend, Kotlin, Containerization, Kubernetes, Cassandra, Apache Kafka, Oracle Cloud Infrastructure, Docker, SDET, Golang - **Published:** August 8, 2026 - **Apply:** https://crowdstrike.wd5.myworkdayjobs.com/crowdstrikecareers/job/USA---Sunnyvale-CA/Engineer-III---Cloud-SDET---Lightning--Remote-_R24950 ## About the Role * 8+ years of experience (Avg. YoE: 11-16 years) as an SDET or Backend Developer (combined) * Experience building testing frameworks and tooling for a Cloud SaaS product or other SOA with similar cloud components * Experience contributing to or defining testing strategy at a team or organizational level * Strong debugging skills: ability to spot design flaws, race conditions, and performance bottlenecks in complex architectures * Expertise in any of: Golang, Python, Java, Kotlin, Rust, or C/C++ - Go is our primary language, but strong engineers in any of these are welcome and we support ramp-up * Experience in a cloud distributed systems stack: e.g. Kubernetes, Cassandra, Redis, Kafka, and/or similar technologies - you don't need all of these specifically, but transferable skills in each category are a must * Experience with distributed systems and scalability challenges * Experience with cloud services, such as AWS or GCP, particularly compute and storage offerings * Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes. * Experience with CI/CD pipelines and integrating automated testing into deployment workflows * Experience developing and deploying in containerized environments (e.g., Docker, Kubernetes) * Experience mentoring engineers and driving quality culture across a team or organization Bonus Points: * Experience building, operating, validating, and scaling low-latency cloud services using gRPC and event-driven messaging systems such as Kafka * Experience building and shipping cloud-connected endpoint software * Experience with at least one cloud environment, such as AWS, GCP, or OCI * Experience leveraging AI and agentic tools to enhance testing workflows and automation #LI-MP2 ## Description 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. About the Role: Lightning is a suite of services in the CrowdStrike cloud that expose sub-second, near-real-time APIs enabling Falcon Sensors to rapidly obtain threat information. Operating at massive scale, Lightning processes trillions of threat events daily within tight latency constraints - where performance and availability are critical to sensor operation and customer protection., CrowdStrike is seeking a Senior Software Developer in Test (SDET) for a hands-on, coding-intensive role on par with product development. The Sr. SDET will build and own Lightning-specific test tooling and frameworks, while leveraging and contributing to shared organization-wide testing infrastructure. This critical role owns end-to-end validation across both cloud-side services and Falcon Sensor interactions (e.g., validating interactions between cloud services and lightweight endpoint agents) - 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. The Sr. SDET will participate in design discussions and code reviews with a focus on quality, serve as the team's SME for code hygiene, and contribute to service operations - all while continuously expanding test coverage and capabilities. Cybersecurity experience is a plus, not a prerequisite., * Own end-to-end validation of Lightning services across cloud-side and Falcon Sensor interactions, spanning component, integration, and application levels, while continuously improving test and validation processes * Build and own Lightning-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 testing concerns * Participate in technical design reviews and provide clear guidance on testability, quality, and code hygiene * Participate in code reviews with a focus on quality, serving as the team's SME for code hygiene * Contribute to service operations, including improving overall service observability and monitoring, root cause analysis of production issues, and implementing quality improvements to prevent future outages ## Related Videos - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall) - [Retooling and refactoring - an investment in people.](https://www.wearedevelopers.com/videos/371-retooling-and-refactoring-an-investment-in-people) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) - [Scoring 2000 Products per Request: Performance Pitfalls in Golang](https://www.wearedevelopers.com/videos/2073-scoring-2000-products-per-request-performance-pitfalls-in-golang) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)