Engineer III, MacOS Sensor (Hybrid, Redmond)

As a global leader in cybersecurity CrowdStrike protects the people processes and technologies that drive modern organizations. Since 2011 our mission hasnt changed were here to stop breaches and weve redefined modern security with the worlds 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. Were proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute to a culture of responsible AI adoption experimentation and innovation. We use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution build expertise uncover insights and solve complex problems. Were 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 Team:

Content Development (CD) is a team within the Endpoint Protection area of CrowdStrikethe area responsible for enabling detection and prevention of malicious behaviors on the Falcon Platform. The CD team focuses on strategic forward-leaning research into new Falcon Sensor capabilities to identify the tactics and techniques used by adversaries. We accomplish this by focusing on OS security and internals across all major supported platforms (Windows macOS and Linux) and exposing the right data to the sensor in a supportable and performant manner. Most of our projects involve months of research planning coordination and implementation to be successful. We currently support several key Falcon Sensor technologies that detection and response teams leverage to increase telemetry detections and preventions on the platform.

Location:

This is a hybrid role based out Redmond WA Sunnyvale CA Austin TX NYC or Toronto with an expectation of being in the office at least 2 days per week.

About the Role:

In this role you will research and develop techniques for detecting malicious activity on macOS systems then build 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 a strong software engineering background deep macOS expertise and significant experience in the security space. As an Engineer III on our team youll serve as a key resource and subject matter expert for engineers across teams and the broader company collaborating with a wide range of teams as you drive your own initiatives and contribute to other projects. Youll be expected to make meaningful contributions across the full development lifecycle from initial concept through design implementation release and post-release support. We pride ourselves on a quality-first mindset and are looking for engineers who thrive on being challenged and take ownership of what they build.

What Youll Do:

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

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

• Own features from design to delivery developing them into production-level solutions for deployment in the endpoint sensor

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

• Apply engineering best practicessecure coding testing paradigms debugging performance code reviews CI/CD and OS internalsto ensure our sensor code is fast and reliable

• Collaborate with a cross-functional team spread across geographies

• Respond to and troubleshoot product issues reported by customers

• Be an energetic self-starter with the ability to take ownership and be accountable for individual deliverables

• Take on other projects as assigned

What Youll Need:

• 3 years of experience with either:

  • Reverse engineering threat detection and malware analysis and familiarity with on-device development or

  • Designing building and delivering high-quality software in Swift C/C or Objective-C (and ideally similar languages) and familiarity or a proven interest in security

• Solid knowledge of macOS OS internals: processes storage networking and memory management along with relevant components APIs and frameworks

• Ability to develop high-quality code in Swift and/or C/C that meets:

  • High-concurrency requirements with strong use of multi-threading

  • High reliability and performance requirements

  • Detailed low-level operating requirements (memory usage efficient performance standards conformance)

• Ability to deliver enterprise software while collaborating across functions: CI testing debugging performance tracing release management big-data telemetry analysis and issue handling

• Team playerable to communicate collaborate and work effectively in a distributed team and to clearly articulate thoughts and designs to peers and upper management

• Proven experience utilizing AI technologies to enhance decision-making streamline workflows and processes improve efficiency and drive business outcomes.

Bonus Points:

• Familiarity and ideally experience with macOS frameworks and events relevant to security (for example Endpoint Security and Network Extension) and recent familiarity with macOS APIs SDKs and OS developments

• Prior security experience particularly in endpoint threat detection or sensor development including on other operating systems (Linux Windows)

• Familiarity with AI and recent developments in the macOS threat landscape

• Experience developing and delivering 24/7 enterprise endpoint software

• Experience with Python and scripting for research tooling and automation

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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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