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About the Role

The Sensor Performance Engineering team is seeking a Senior 2 Engineer to serve as a deep technical authority on Windows sensor performance. This is a hands-on role for an engineer who bridges kernel-mode internals, ETW/WPA trace analysis, and enterprise customer escalations. You will own the most complex performance investigations, shape the team's diagnostic tooling, and serve as an architectural voice for how the Falcon sensor interacts with Windows subsystems at the lowest levels. CrowdStrike protects the world's most critical enterprises. The Sensor Performance Engineering team ensures the Falcon sensor does that without impacting the performance of the systems it protects. This role sits at the intersection of kernel engineering, performance science and customer impact — where the problems are genuinely hard, the stakes are high, and the work directly shapes the experience of some of the largest deployments in the world.

Responsibilities

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

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.

Skills

Windows kernel-mode development
Windows systems engineering
Windows Performance Analyzer (WPA)
xperf
ETW/WPP tracing
ETL file analysis
Stack attribution
CPU sampling
Per-component time accounting
Windows kernel APIs
Endpoint security
Registry filter manager callbacks
Process/thread notification callbacks
Load image callbacks
Access token APIs
Impersonation APIs
Multi-process interactions
File I/O storms
SCM/RPC-driven registry operations
Process enumeration overhead
AI technologies

Location

Hybrid

Work Type

Hybrid

Experience Level

Senior
10+ years

Salary/Compensations

$160,000 - $250,000 per year

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
Eligibility for bonuses
Equity grants
Comprehensive benefits package that includes health insurance, 401k and paid time off

About the Company

Global leader in cybersecurity, protecting people, processes and technologies that drive modern organizations.
Mission: stop breaches, redefined modern security with the world’s most advanced AI-native platform.
Work on large scale distributed systems, processing almost 3 trillion events per day with daily growth.
Customers span all industries, relying on CrowdStrike to keep businesses running, communities safe and lives moving forward.
Mission-driven company leveraging AI to transform the way we work.
CrowdStrikers drive careers through flexibility and autonomy.
Expected to contribute to a culture of responsible AI adoption, experimentation, and innovation.
Use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution, build expertise, uncover insights, and solve complex problems.
Always looking to add talented CrowdStrikers with limitless passion, a relentless focus on innovation and a fanatical commitment to customers, community and each other.

Equal Opportunity

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.
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