Engineer III – MacOS Sensor

CrowdStrike

. Design and build detection logic and systems used across CrowdStrike to detect cyber attackers and stop breaches .

Posted 10/22/2026full-timeRemote • United StatesMid-LevelSenior💰 $120,000 - $180,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing high-quality software solutions using Swift and C/C++, with a strong focus on security and performance in endpoint detection systems. Proven ability to collaborate effectively in distributed teams while addressing complex technical challenges in the cybersecurity domain.

Highest-signal resume keywords

Swift DevelopmentC/C++ ProgrammingReverse EngineeringThreat DetectionMacOS OS Internals

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Malware AnalysisMulti-ThreadingSecure CodingPerformance TestingDebuggingCI/CDBig-Data AnalysisMemory ManagementEnterprise Software DevelopmentScripting with Python

Soft Skills

CollaborationCommunicationAccountabilityProblem-SolvingSubject Matter Expertise

Tools & Technologies

MacOS APIsMacOS Security FrameworksEndpoint SecurityNetwork ExtensionAI Technologies

Industry Keywords

CybersecurityEndpoint DetectionSoftware Development LifecycleHigh-Concurrency RequirementsDistributed Teams

Tech Stack

Tools & technologies

LinuxMacOSObjective-CPythonSwiftC++

About the role

Key responsibilities & impact

Design and build detection logic and systems used across CrowdStrike to detect cyber attackers and stop breaches
Research techniques for detecting malicious activity, including reverse engineering and/or big-data analysis
Own features from design through delivery, developing production-level solutions for deployment in the endpoint sensor
Extend the existing codebase using Swift, C++, Python, and other tools and domain-specific languages
Apply secure coding, testing, debugging, performance, code review, CI/CD, and OS-internals best practices
Collaborate with a cross-functional team spread across geographies
Respond to and troubleshoot product issues reported by customers
Take ownership and accountability for individual deliverables
Serve as a subject matter expert for engineers across teams and the broader company
Contribute across the full development lifecycle from concept through design, implementation, release, and post-release support
Take on other projects as assigned

Requirements

What you’ll need

3+ years of experience with either reverse engineering, threat detection, and malware analysis, with familiarity with on-device development, or designing, building, and delivering high-quality software in Swift, C/C++, or Objective-C, with 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++
Experience meeting high-concurrency requirements with strong use of multi-threading
Experience meeting high reliability and performance requirements
Experience addressing detailed low-level operating requirements, including memory usage, efficient performance, and standards conformance
Ability to deliver enterprise software while collaborating across functions, including CI, testing, debugging, performance tracing, release management, big-data telemetry analysis, and issue handling
Ability to communicate, collaborate, and work effectively in a distributed team and 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
Familiarity and ideally experience with macOS security frameworks and events, such as Endpoint Security and Network Extension
Recent familiarity with macOS APIs, SDKs, and OS developments
Prior security experience, particularly in endpoint threat detection or sensor development, including on Linux or 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

Benefits

Comp & perks

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
Health insurance
401k
Paid time off
Bonuses
Equity grants