Senior Engineer II, Sensor – Sensor Performance Engineering

CrowdStrike

Senior 2 Engineer analyzing Windows sensor performance at CrowdStrike. Conducting deep-dive performance analyses and improving diagnostic instrumentation for endpoint security solutions.

Posted 7/17/2026full-timeSunnyvale • California, Texas, Washington • 🇺🇸 United StatesSenior💰 $160,000 - $250,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expert-level proficiency in Windows Performance Analyzer (WPA), ETW/WPP tracing, and deep Windows kernel-mode development, with a strong focus on performance analysis and improvement. Capable of navigating complex multi-process interactions and advocating for architectural enhancements in multi-team environments.

Highest-signal resume keywords

Windows Kernel-Mode DevelopmentWindows Performance Analyzer (WPA)ETW/WPP TracingPerformance Benchmarking/AnalysisAI Technologies Utilization

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Windows Kernel APIsETL File AnalysisStack AttributionCPU SamplingPer-Component Time AccountingRegistry Filter Manager CallbacksProcess/Thread Notification CallbacksLoad Image CallbacksAccess Token and Impersonation APIsSQL Server Under Load

Soft Skills

Advocating for Architectural IdeasCollaboration in Multi-Team Environments

Tools & Technologies

XperfETWReaderWPAAnyConnectVPN Stack

Industry Keywords

Performance AnalysisEndpoint SecurityEnterprise Performance BenchmarkingVDI/AVD MultisessionCluster Shared Volume I/O

Tech Stack

Tools & technologies

ETLSQL

About the role

Key responsibilities & impact

Own deep-dive performance analysis of the Falcon sensor on Windows, from initial triage through root cause to shipped fix — including application compatibility and AV/EDR process interaction issues.
Drive development and improvement of ETW-based diagnostic instrumentation, extending WPP providers, adding new event IDs, versioning existing events — to give the team visibility into previously opaque code paths.
Perform WPA/ETL analysis for customer support cases and internal benchmarking, including ETWReader-based bottleneck identification and per-component CPU attribution across sensor subsystems.
Review and author PRs targeting Windows sensor performance improvements: load image callbacks, registry filter drivers, and process/thread notification routines.
Identify sensor observability gaps and push for tooling to close them.

Requirements

What you’ll need

10+ years of hands-on Windows kernel-mode development or deep Windows systems engineering
Expert-level proficiency with Windows Performance Analyzer (WPA), xperf, ETW/WPP tracing, and ETL file analysis — including stack attribution, CPU sampling, and per-component time accounting
Strong working knowledge of Windows kernel APIs relevant to endpoint security: registry filter manager callbacks, process/thread notification callbacks, load image callbacks, access token and impersonation APIs
Experience navigating complex multi-process interactions: file I/O storms, SCM/RPC-driven registry operations, process enumeration overhead, and their cascading effects on application performance
Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes.
Background in enterprise performance benchmarking/analysis: SQL Server under load, VDI/AVD multisession, AnyConnect/VPN stack interactions, Cluster Shared Volume I/O
Track record of generating architectural ideas and advocating for them constructively within mulit-team environments.

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
Great Place to Work Certified™ across the globe