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- Tasks: Join our Falcon Data Protection team as a Senior Test Engineer, focusing on advanced endpoint sensor technology.
- Company: CrowdStrike is a global leader in cybersecurity, dedicated to stopping breaches with innovative AI-native solutions.
- Benefits: Enjoy remote work flexibility, competitive pay, wellness programs, and professional development opportunities.
- Why this job: Be part of a mission-driven culture that values innovation, quality, and community impact.
- Qualifications: 5+ years in SDET/test automation, strong Python skills, and experience with CI/CD frameworks required.
- Other info: Join a diverse team committed to fostering a culture of belonging and empowerment.
The predicted salary is between 48000 - 72000 £ per year.
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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.
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 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
What You\’ll Need:
- 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
Bonus Points:
- 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
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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 (emailprotected) for further assistance.
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Sr. Test Engineer (SDET) C++/Python, Sensor team (Ireland/ UK, Remote) employer: CrowdStrike
Contact Detail:
CrowdStrike Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Sr. Test Engineer (SDET) C++/Python, Sensor team (Ireland/ UK, Remote)
✨Tip Number 1
Familiarise yourself with CrowdStrike's mission and values. Understanding their commitment to cybersecurity and innovation will help you align your answers during interviews, showcasing how your personal values resonate with theirs.
✨Tip Number 2
Brush up on your knowledge of C++ and Python, as these are crucial for the role. Consider working on small projects or contributing to open-source initiatives that involve these languages to demonstrate your hands-on experience.
✨Tip Number 3
Network with current or former CrowdStrike employees on platforms like LinkedIn. Engaging in conversations about their experiences can provide valuable insights into the company culture and expectations, which you can leverage in your application.
✨Tip Number 4
Prepare to discuss your experience with CI/CD frameworks and testing methodologies. Be ready to share specific examples of how you've implemented these practices in past roles, as this will highlight your suitability for the SDET position.
We think you need these skills to ace Sr. Test Engineer (SDET) C++/Python, Sensor team (Ireland/ UK, Remote)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with C++ and Python, as well as your background in test automation. Use specific examples that demonstrate your skills in building testing frameworks and your understanding of CI/CD processes.
Craft a Compelling Cover Letter: In your cover letter, express your passion for cybersecurity and how your experience aligns with CrowdStrike's mission. Mention specific projects where you automated testing processes or improved software quality, showcasing your problem-solving abilities.
Highlight Relevant Experience: When detailing your work history, focus on roles where you have implemented testing strategies or collaborated with development teams. Emphasise any experience with performance profiling tools and debugging complex issues, as these are crucial for the role.
Showcase Soft Skills: CrowdStrike values collaboration and communication. Include examples of how you've worked effectively in distributed teams and mentored others. This will demonstrate your ability to thrive in their culture of high product quality and excellence.
How to prepare for a job interview at CrowdStrike
✨Showcase Your Technical Skills
As a Senior Test Engineer, you'll need to demonstrate your proficiency in C++ and Python. Be prepared to discuss your past projects and how you've applied these languages in test automation. Consider bringing examples of your work or discussing specific challenges you've overcome.
✨Understand the Company’s Mission
CrowdStrike is focused on cybersecurity and protecting sensitive data. Familiarise yourself with their products and mission. During the interview, express your enthusiasm for their goals and how your skills align with their commitment to innovation and quality.
✨Prepare for Technical Questions
Expect questions related to white-box testing techniques, CI/CD frameworks, and performance profiling tools. Brush up on these topics and be ready to explain your approach to testing and debugging complex systems, as well as how you ensure software quality.
✨Demonstrate Collaboration Skills
CrowdStrike values teamwork, especially in a globally distributed environment. Be ready to share examples of how you've successfully collaborated with cross-functional teams in the past, highlighting your communication skills and ability to mentor others.
