Sensor SDET Engineer (Remote, Ireland /UK)

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 also a mission-driven company. We cultivate a culture that gives every CrowdStriker both the flexibility and autonomy to own their careers. 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:

CrowdStrike is seeking an experienced Software Development Engineer in Test (SDET) position for our IT Management Product Group. As an Engineer III Sensor SDET you will be focusing on our advanced endpoint sensor technology. As key contributors to the team, SDETs leverage their strong software development skills to architect and implement sophisticated testing frameworks, automated tools, and specialized test harnesses.

You'll ensure our quality standards are met across all new capabilities while actively participating in technical design discussions and code reviews. Working closely with development teams, you'll help ensure robust end-to-end data protection functionality. We're seeking talented engineers who thrive on technical challenges and take ownership of their work, contributing to our culture where quality is paramount.

About the Product:

Falcon For IT is our newest product release. It helps IT & Security teams answer the most difficult questions about their infrastructure, apps and endpoints. It can be combined with our Charlotte AI to ease usability and speed up identification and remediation of issues. The product is a cloud based solution allowing customers to query their entire endpoints fleet to address IT challenges. It works in synergy with our Sensor - a driver installed on client machines that observes system activity and apps, recognises malicious behaviour, then provides on-box prevention capability and remote telemetry to the cloud.

Success In This Role Means:

• Automating test processes for speed, reproducibility, and scalability. You will build system tests, performance tests, integration tests, unit tests and more
• Reviewing feature code and discerning the quality regarding functional and non-functional requirements
• Breaking software systems in creative and useful ways
• Collaborating both within and across teams to deliver quality software
• Thriving with responsibility, challenges, and aggressive goals
• Building elegant, robust, and reliable solutions for complex technical problems
• Provide visibility into the overall quality of the product through metrics, dashboards, and reports

What You'll Do:

• Work closely with a team of engineers to support and maintain a culture of high product quality and excellence
• Analyze complex sensor software features, and build effective test strategies and test designs
• Extend our existing codebase utilising C++, Python, and other tools and DSLs (domain specific languages) to increase the testability and debuggability of sensor code
• Design and implement specialized tests for system-wide qualities including performance, scalability, compatibility across multiple OS platforms, and resource utilisation
• Work collaboratively with product and release management to control risk, improve quality, and streamline our release cycles
• Debug complex sensor issues found through testing or customer cases to identify root cause and enhance test coverage
• Lead rigorous product and test code reviews with an eye towards improving the security and robustness of the sensor system
• Leverage your understanding of engineering best practices, including secure coding, testing paradigms, debugging, performance measurement, code reviews, CI/CD and OS internals, to ensure optimal sensor performance and reliability

What You’ll Need:

• 5+ years of experience in software testing and quality assurance with a strong focus on test automation
• A computer science background or equivalent experience
• Experience in working with Windows, Linux (various distros) and/or Mac platforms at OS level (e.g. Windows OS internals, components and APIs, Linux/Unix kernel)
• Strong programming skills in Python and ability to read & understand C/C++ code
• Experience with acceptance testing tools, and best practices (e.g. Cucumber, pytest/pytest-bdd)
• Experience with containerization, CI/CD pipelines and tools (e.g., Docker, Kubernetes, Argo, Jenkins, GitLab CI)
• Knowledge of various testing methodologies: behavior, functional, performance, unit, security, contract, etc.
• A good understanding of software development lifecycle and agile methodologies
• Excellent problem-solving skills and analytical skills along with attention to details
• Effective written and oral communication, be a self-starter and highly motivated

Bonus Points:

• Experience working in the IT Automation or Cybersecurity sectors
• Worked as a C/C++ programmer
• Knowledge of Golang
• Knowledge of PlayWright or Robot
• Experience withTerraform, Ansible, Docker, Cloud certifications on AWS/GCP
• Contributions to the Open Source community

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Benefits of Working at CrowdStrike:

• Remote-friendly and flexible work culture
• Market leader in compensation and equity awards
• Comprehensive physical and mental wellness programs
• Competitive vacation and holidays for recharge
• Paid parental and adoption leaves
• Professional development opportunities for all employees regardless of level or role
• Employee Networks, geographic neighborhood groups, and volunteer opportunities to build connections
• Vibrant office culture with world class amenities
• Great Place to Work Certified™ across the globe

CrowdStrike 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 recruiting@crowdstrike.com for further assistance.