Engineer III, MacOS Sensor (Hybrid, Redmond)

CrowdStrike Holdings, Inc.$120K — $180K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 3+ years of experience in reverse engineering, threat detection, malware analysis, or high-quality software development in Swift/C/C++ with a focus on security.
  • Solid knowledge of macOS internals, including processes, storage, networking, and memory management.
  • Ability to develop high-quality, high-concurrency, and performance-oriented code in Swift/C/C++.
  • Experience in delivering enterprise software with cross-functional collaboration and issue handling.
  • Strong communication skills to effectively articulate designs to peers and management.
  • Proven use of AI technologies to improve decision-making and efficiency.

Responsibilities

  • Design and build detection systems to stop cyber attackers and breaches.
  • Research malicious activity detection techniques, including reverse engineering and big-data analysis.
  • Own the development process from design through delivery for endpoint sensor solutions.
  • Extend codebase using Swift, C++, Python, and other DSLs as needed.
  • Apply engineering best practices for secure coding, testing, and performance to ensure reliability.
  • Collaborate with cross-functional teams across various locations.
  • Troubleshoot product issues reported by customers and respond to their needs.

Benefits

  • 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.
Full Job Description

About the Team:

Content Development (CD) is a team within the Endpoint Protection area of CrowdStrike—the 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, you'll 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. You'll 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 You'll 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 practices—secure coding, testing paradigms, debugging, performance, code reviews, CI/CD, and OS internals—to 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 You'll 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 player—able 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

#LI-DR1

#LI-DG1

#LI-Hybrid

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

About CrowdStrike Holdings, Inc.

CrowdStrike Holdings, Inc. Careers

Joining CrowdStrike Holdings, Inc. presents an unparalleled opportunity to advance a career in the tech industry with a company at the forefront of digital security. As a leader in cybersecurity solutions, CrowdStrike Holdings, Inc. offers a range of job opportunities that cater to a variety of skills and experiences, from entry-level positions to senior leadership roles.

Explore Job Opportunities

CrowdStrike Holdings, Inc. is continuously seeking talented individuals who are passionate about protecting organizations against cyber threats. With a commitment to innovation and excellence, the company is hiring professionals who are eager to contribute to a team that values hard work and creative solutions.

Innovation and Professional Growth

At CrowdStrike Holdings, Inc., employees are encouraged to push the boundaries of technology and leadership. The company supports professional growth through robust training programs, including leadership development and diversity training, ensuring that every team member has the resources to thrive in their career.

Culture and Benefits

The culture at CrowdStrike Holdings, Inc. is dynamic and inclusive, fostering a workplace where diversity is celebrated and every voice is heard. Employees enjoy comprehensive benefits that support both their professional and personal lives, enhancing job satisfaction and team morale.

Internship Programs

For those starting their career, CrowdStrike Holdings, Inc. offers internship programs that provide a rich learning environment. Interns gain hands-on experience, working alongside seasoned professionals and participating in projects that deliver real-world solutions.

Networking and Career Advancement

CrowdStrike Holdings, Inc. emphasizes the importance of networking within the industry, offering numerous opportunities for employees to connect with thought leaders and innovators. These connections can lead to career advancement and a deeper understanding of the cybersecurity landscape.

Applying for a Position

To apply for a position at CrowdStrike Holdings, Inc., candidates should prepare a resume that highlights relevant experience and skills. The interview process is designed to assess not only professional qualifications but also a candidate's fit within the company culture and team.

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Join the Team

CrowdStrike Holdings, Inc. is looking for curious, creative, and solution-driven team players. Explore the employment opportunities on the CrowdStrike Holdings, Inc. careers page to find a position that matches your skills and passions.

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