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Sr. Test Engineer (SDET) C++/Python, Sensor team (Ireland/ UK, Remote)

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Client:

CrowdStrike

Location:

United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

681773e75ba2

Job Views:

6

Posted:

12.08.2025

Expiry Date:

26.09.2025

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Job 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 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:

Join our leading Falcon Data Protection team, which safeguards organizations' sensitive data through advanced data loss prevention capabilities integrated seamlessly into the Falcon platform. This innovative solution combines machine learning, policy enforcement, and real-time detection to protect against data breaches while maintaining endpoint performance and user productivity.

This is a Senior Software Development Engineer in Test (SDET) position on our Falcon Data Protection product development team, 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.

Success in This Role Means:

• Automating test processes for speed, reproducibility, and scalability. You will build integration tests, unit tests, system tests, performance 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.

• 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 utilizing 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 utilization
• 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

• 5+ years of hands-on SDET/test automation development experience
• Computer science degree or equivalent experience
• Strong programming skills in Python and ability to read & understand C/C++ code
• Extensive experience with:
  
  • White-box testing techniques and code review
  • CI/CD frameworks and testing methodologies
  • Windows OS internals, components, and APIs
  • Performance profiling tools and crash dump analysis
• Demonstrated ability to:
  
  • Design and implement comprehensive test strategies
  • Lead and mentor team members
  • Work effectively in a globally distributed team
  • Communicate technical concepts clearly to various audiences
  • Proven track record in product development and release cycles

• Prior experience working with low-level code, or any Mac/Win/Linux module development.
• Knowledge of low-level operating system internals, components, APIs, and design, for one or more of our supported platforms (Windows, macOS, Linux).
• Prior experience with pytest, Jenkins or Javascript
• Understanding Event Driven architecture and cloud native technologies
• Experience developing 24/7 enterprise software, including CI, testing, debugging, performance tracing, release management, telemetry analysis and issue handling

• 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