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CrowdstrikeCR

Sr. MacOS Sensor Engineer

CrowdStrike is the leader in cloud-delivered next-generation endpoint protection.

Crowdstrike

Employee count: 1001-5000

Salary: 140k-215k USD

United States only

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:

In this role you will research and develop techniques for detecting malicious activity occurring on macOS systems. Once researched you will develop them into production level solutions for deployment in the endpoint sensor. The role is a split of research and implementation working alongside a small and nimble group of MacOS engineers and often leveraging shared code with other sensor platforms such as Windows and Linux.

Successful engineers in this role have: an understanding of macOS kernel and user space, a passion for continuous learning to keep up with an ever-changing threat landscape, a creative mindset for designing new detection methods and the discipline to write fast and reliable code.

What You'll Do:

  • Design and build detection logic and systems leveraged across teams within CrowdStrike to detect cyber attackers and stop breaches

  • Extend our existing codebase utilizing Swift, C++, Python, and other tools and DSLs (domain specific languages) as appropriate

  • Research techniques for detecting malicious activity including some reverse engineering and/or big data analysis

  • Leverage your understanding of engineering best practices, including topics like secure coding, testing paradigms, debugging, performance, code reviews, CI/CD and os internals, to ensure that our sensor code is fast and reliable

  • Troubleshoot issues with the product as reported from customers responsively and other projects as assigned

  • Be an energetic ‘self-starter’ with the ability to take ownership and be accountable for deliverables, both individually and when leading a team

What You'll Need:

  • 5+ years of experience with either:

    • Reverse engineering, threat detection, and malware analysis; and an interest in on-device development, or

    • Designing, building, and delivering high-quality software in at least one of the following: Swift, C/C++, Python, Objective-C; and an interest in security.

  • Low-level OS knowledge of macOS and/or Linux operating system internals, components, APIs and/or frameworks.

  • Team player – able to lead, mentor, communicate, collaborate, and work effectively in a distributed team, to clearly articulate thoughts & designs to peers and upper management

Bonus Points:

  • Prior security experience, particularly in endpoint threat detections or sensor development. Familiarity with the threat landscape on Linux/Windows is a plus

  • Experience with macOS Frameworks and events relevant to security and recent familiarity with the recent developments in macOS

  • Experience developing 24/7 enterprise software, including CI, testing, debugging, performance tracing, release management, telemetry analysis and issue handling

#HTF

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.

Find out more about your rights as an applicant.

CrowdStrike participates in the E-Verify program.

Notice of E-Verify Participation

Right to Work

CrowdStrike, Inc. is committed to fair and equitable compensation practices. Placement within the pay range is dependent on a variety of factors including, but not limited to, relevant work experience, skills, certifications, job level, supervisory status, and location. The base salary range for this position for all U.S. candidates is $140,000 - $215,000 per year, with eligibility for bonuses, equity grants and a comprehensive benefits package that includes health insurance, 401k and paid time off.

For detailed information about the U.S. benefits package, please click here.

Expected Close Date of Job Posting is:09-22-2025

About the job

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Job type

Full Time

Experience level

Senior

Salary

Salary: 140k-215k USD

Location requirements

Hiring timezones

United States +/- 0 hours

About Crowdstrike

Learn more about Crowdstrike and their company culture.

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CrowdStrike is the leader in cloud-delivered next-generation endpoint protection. CrowdStrike has revolutionized endpoint protection by being the first and only company to unify next-generation antivirus (AV), endpoint detection and response (EDR), and a 24/7 managed hunting service — all delivered via a single lightweight agent.

Many of the world’s largest organizations already put their trust in CrowdStrike, including three of the 10 largest global companies by revenue, five of the 10 largest financial institutions, three of the top 10 health care providers, and three of the top 10 energy companies.

Employee benefits

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Commuter benefits

We offer pre-tax commuter benefits.

Wellness benefits

We have great health & wellness programs.

Disability insurance

Disability insurance so you don't have to worry.

Equity benefits

We have a competitive employee stock purchase plan.

View Crowdstrike's employee benefits
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