Software Development Engineer In Test - Agentic Automation

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
Are you an SDET who wants to define how AI agents are tested, evaluated and trusted in production? The CrowdStrike Detonations and Threat Analysis Platform Engineering team is hiring a hands‑on Software Development Engineer in Test. You'll build and maintain the functional, integration and performance automation that keeps our large‑scale, cloud‑based cybersecurity platform reliable. You'll also help shape how we test AI. Our core testing frameworks include agentic test generation and analysis, and we use eval‑driven development (EDD) to validate the AI agents we build.What You’ll Do
Design, develop and maintain automated test suites and frameworks for distributed, cloud-based systemsMaintain and extend the agentic test generation and analysis tooling built into our major testing frameworksBuild AI-powered workflows and agent skill files that automate manual test toil, such as test data setup, failure triage and release validationMaintain eval suites, golden datasets and scoring pipelines for our AI agents, scoring correctness, tool use, trajectory, faithfulness, safety, latency and costEnforce CI eval gates so that every change to prompts, models, tools or orchestration is measured before release, and feed production failures back into the eval setsDetect and mitigate unreliable AI output, including hallucinated assertions, flaky or redundant tests, incorrect failure triage and judge biasDesign, run and analyze performance, load and stress tests to find bottlenecks and validate scalability across distributed servicesValidate the integration of platform systems, services, data and applications, as well as customer-facing features end-to-endReview product, system and agent designs for testability, evaluability, flaws and improvementsShare knowledge and contribute to the team's quality and evaluation standardsWhat You’ll Use
Languages: Java, Node.Js, Python, Go Data & Messaging: MongoDB, MinIO, RabbitMQ, Kafka Cloud & Infrastructure: AWS (EC2, S3, DynamoDB), Docker, Nomad, Terraform, Unix/Linux CI/CD & Tooling: Git, Jenkins, GitLab CI/CD, Jira, Bitbucket Performance Testing: Locust, k6 AI/Agentic & Evals: LLM APIs, agent frameworks and LLM eval toolingWhat You’ll Need
Degree in Computer Science or equivalent experience (OOP, data structures, algorithms, distributed systems)5+ years in software quality, including 3+ years of hands‑on SDET or test automation developmentStrong programming skills in at least one of Java, Node.Js or Python, with Python preferred for eval and agent workProven experience designing, building and maintaining test frameworks integrated with CI/CD pipelines (e.G., Jenkins, GitLab CI/CD)Experience testing web services and APIs (REST, gRPC, JSON)Hands‑on experience with performance and load testing using tools such as Locust or k6, including designing realistic workloads and interpreting results (latency percentiles, throughput, error rates)A skeptical, verification‑first mindset toward AI output, with a clear sense of when to use deterministic assertions and when to use probabilistic evaluationProven experience utilizing AI technologies to enhance decision‑making, streamline workflows and processes, improve efficiency and drive business outcomesBonus Points
End‑to‑end eval‑driven development experience, including release gating, trajectory and tool‑use evals, and calibrating LLM‑as‑judge against human reviewPrompt engineering and context or tool design for agentsIntegrating performance tests into CI/CD and using observability tools (e.G., Grafana, Prometheus, CloudWatch)Background in cybersecurity, threat intelligence, malware analysis or sandboxing/detonation environmentsBenefits of Working at CrowdStrike
Market leader in compensation and equity awardsComprehensive physical and mental wellness programsCompetitive vacation and holidays for rechargePaid parental and adoption leavesProfessional development opportunities for all employees regardless of level or roleEmployee Networks, geographic neighborhood groups, and volunteer opportunities to build connectionsVibrant office culture with world class amenitiesGreat Place to Work Certified™ across the globeCrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued for who they are and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program. CrowdStrike is committed to providing equal employment opportunity for all employees and applicants for employment. The Company does not discriminate in employment opportunities or practices on the basis of race, color, creed, ethnicity, religion, sex (including pregnancy or pregnancy‑related medical conditions), sexual orientation, gender identity, marital or family status, veteran status, age, national origin, ancestry, physical disability (including HIV and AIDS), mental disability, medical condition, genetic information, membership or activity in a local human rights commission, status with regard to public assistance, or any other characteristic protected by law. We base all employment decisions–including recruitment, selection, training, compensation, benefits, discipline, promotions, transfers, lay‑offs, return from lay‑off, terminations and social/recreational programs–on valid job requirements. If you need assistance accessing or reviewing the information on this website or need help submitting an application for employment or requesting an accommodation, please contact us at View email address on ca.hrm.tc for further assistance.The base salary range for this position in Canada is $120,000 - $170,000 CAD per year + variable/incentive compensation + equity + benefits. This is Canadian-based employment, and it is expected that all employees maintain legal entitlement to work in Canada. Applicants selected to move forward in the hiring process are subject to background checks, including but not limited to criminal record, credit, and/or reference checks.CrowdStrike was founded in 2011 to fix a fundamental problem: The sophisticated attacks that were forcing the world’s leading businesses into the headlines could not be solved with existing malware‑based defenses. Founder George Kurtz realized that a brand new approach was needed — one that combines the most advanced endpoint protection with expert intelligence to pinpoint the adversaries perpetrating the attacks, not just the malware. There’s much more to the story of how Falcon has redefined endpoint protection but there’s only one thing to remember about CrowdStrike: We stop breaches.
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