Sr. Engineer - Sensor SDET

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:

Be part of the team developing Falcon Data Protection, 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 browser extension technology for endpoint security. As a key contributor to the team, you will architect and implement end-to-end test automation for a browser extension that operates across multiple browser types, ensuring robust data protection directly within the browser. You'll own the testing strategy for the full extension lifecycle — from installation and policy enforcement to egress detection — while working closely with sensor and cloud teams to validate seamless integration across the entire stack. We're seeking a talented engineer who thrives on technical challenges, takes ownership of their work, and contributes to a culture where quality is paramount.

Location: Hybrid — Tel Aviv, Israel

Success in this role means:

Designing and owning the end-to-end test strategy for a browser extension that enforces policies across multiple browsers types and operating systems

Building reliable, maintainable test automation using Playwright and modern TypeScript tooling

Validating data egress scenarios, ensuring policy enforcement works correctly in real-world browser workflows

Driving cross-browser compatibility testing on both Windows and macOS platforms

Collaborating across sensor, cloud, and extension teams to ensure seamless integration and quality across the full data protection pipeline

Leading test initiatives, mentoring team members, and raising the bar for testing practices within the team

What You'll Do:

Work closely with a team of engineers to support and maintain a culture of high product quality and excellence

Design and implement comprehensive test strategies for the browser extension, covering installation, lifecycle management, content script behavior, background workers

Build and maintain E2E test automation using Playwright, validating data loss prevention capabilities across different browsers and platforms

Develop tests for extension-to-sensor communication, ensuring policies are correctly enforced end-to-end

Drive cross-browser testing, identifying and debugging browser-specific issues

Manage test infrastructure including CI/CD pipelines in Jenkins, ensuring fast and reliable feedback loops

Use MDM tools (Jamf, Intune) to deploy and validate enterprise extension distribution across Windows and macOS environments

Lead rigorous test and product code reviews with an eye towards improving reliability, security, and maintainability

Debug complex cross-platform issues found through testing or customer cases to identify root cause and enhance test coverage

Collaborate with product and release management to control risk, improve quality, and streamline release cycles

What You'll Need:

5+ years of hands-on SDET/test automation development experience with end-to-end test frameworks (Playwright or similar)

Computer science degree or equivalent experience

Strong TypeScript/JavaScript proficiency

Experience testing across both Windows and macOS platforms

Experience with CI/CD pipelines (Jenkins, GitHub Actions, or similar)

Experience working with MDM tools to deploy enterprise products (Jamf, Intune, or similar)

Python as a secondary language — ability to read, write, and maintain Python-based test utilities

Understanding of process communication and error handling in system-level integrations

Demonstrated ability to:

Design and implement comprehensive test strategies

Lead test initiatives 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:

Experience testing browser extensions (Manifest V3 preferred)

Familiarity with Chrome DevTools Protocol and debugging extension behavior

Security-focused testing mindset — experience with policy enforcement, blocking/allowing operations, and data loss prevention scenarios

Understanding of 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

Familiarity with build tools such as Vite and pnpm

#LI-DM1

Benefits of Working at CrowdStrike:

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.

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